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Mar 7, 2014, 7:56 pm by JDiverPLEASE READ FIRST: WELCOME and MODERATOR NOTE
If you are new to us, welcome to FlyerTalk!Quote:We do have some Rules, and everyone agrees to abide by these when they are granted free membership privileges. On a topic that generates a lot of feelings and perspectives, perhaps the most useful one is:
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MH370 Discussion and Speculation Thread is now open to keep this thread focused on confirmed news and known facts, and to allow folks to discuss their ideas about what might have happened
Archived older posts:
MH 370 KUL-PEK Missing: 8 - 15 Mar 2014 UTC - ARCHIVE WEEK #1
MH 370 KUL-PEK Missing: 15 - 21 Mar 2014 UTC - ARCHIVE WEEK #2
FREQUENTLY ASKED QUESTIONS / FAQ has been inserted into Post #1 of this thread.
Malaysia Airlines has provided the following contact numbers for passengers' families: +603 7884 1234 (Kuala Lumpur) or +8610 6437 6249 (Beijing)
This thread now begins with posts made after 0536 UTC 22 March 2014..
N.B. Please do not alter the above message.
• • • • •
WIKIPOST
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Signed-in members with 90 days / 90 posts on FlyerTalk may edit this Wikipost with updates.
Please report all times in UTC - Coordinated Universal Time (GMT - Greenwich Mean Time, Z - Zulu time) in order to
avoid confusion caused by complex time zone boundaries in the incident area.
Quote:
SUMMARY: MH370 departed Kuala Lumpur for Beijing with 227 passengers and 12 crew early morning March 8 2014. After what appeared to be a normal departure, a handoff to Vietnamese ATC was not finalized - communications and secondary radar data no longer were transmitted. The aircraft has been assumed to fly on for 7 hours on an initially circuitous route and to have been lost at sea in the southern Indian Ocean, 1,500 mi / 2,500 km sw of Perth.
No operating theory has been put forth that provides a probable explanation of who has flown the aircraft nor for what possible purpose as of 27 March. Link to BBC written and video summary of the flight of MH370.Quote:Last updated: Friday April 11 0915 UTC / 1715 AWST (changes made since 00:01 Thursday UTC are in highlighted text) or indigo.LATEST NEWS
In reverse chronological order:
*All times regarding activities within the search area are expressed in Australian Western Standard Time (AWST). Please note all times are approximate.
Sunday, 8 March 2015
On the first anniversary of the disappearance of MH370 an interim report was released by Malaysia's Ministry of Transport.
http://mh370.mot.gov.my/
Friday, 11 April 2014 - pm AWST (JACC)
The Chief Coordinator of the Joint Agency Coordination Centre, Air Chief Marshal Angus Houston (Ret'd), said an initial assessment of the possible signal detected by a RAAF AP-3C Orion aircraft yesterday afternoon has been determined as not related to an aircraft underwater locator beacon.
Friday, 11 April 2014 (BBC and other sources)
Australian leader Tony Abbott says authorities are confident that signals heard in the Indian Ocean are coming from the "black box" flight recorders of the missing Malaysia Airlines plane. Link
Thursday, 10 April 2014 - pm AWST (JACC)
The Chief Coordinator of the Joint Agency Coordination Centre, Air Chief Marshal Angus Houston (Ret'd), has confirmed that whilst conducting an acoustic search this afternoon a RAAF AP-3C Orion aircraft has detected a possible signal in the vicinity of the Australian Defence Vessel Ocean Shield.
"The acoustic data will require further analysis overnight but shows potential of being from a man-made source," Air Chief Marshal Houston (Ret'd) said.
"I will provide a further update if, and when, further information becomes available."
Wednesday, 9 April 2014 (BBC)
An Australian vessel heard the signals again on Tuesday afternoon and evening.
Signals heard earlier had also been further analysed by experts who concluded they were from "specific electronic equipment".
Experts at the Australian Joint Acoustic Analysis Centre had also analysed the first two signals heard over the weekend.
Their analysis showed that a "stable, distinct and clear signal" was detected. Experts had therefore assessed that it was not of natural origin and was likely from specific electronic equipment.
Wednesday, 9 April 2014—am AWST (JACC)
Up to 11 military aircraft, four civil aircraft and 14 ships will assist in today's search for missing Malaysia Airlines flight MH370.
Today AMSA has planned a search area of about 75,423 square kilometres.
The centre of the search area is approximately 2261 kilometres north west of Perth.
A weak front is moving in from the south east, expected to bring scattered showers.
The underwater search continues today, with ADV Ocean Shield at the northern end of the defined search area, and Chinese ship Haixun 01 and HMS Echo at the southern end.
Tuesday, 8 April 2014—am AWST (JACC)
Up to eleven military planes, three civil planes and 14 ships will assist in today's search for missing Malaysia Airlines flight MH370.
AMSA has directed the search of one large search area today of approximately 77,580 square kilometres, 2268 kilometres north west of Perth.
Good weather is expected for searching throughout the day.
The underwater search continues, with ADV Ocean Shield at the northern end of the defined search area, and Chinese ship Haixun 01 and HMS Echo at the southern end.
Monday, 7 April 2014
An Australian military vessel has detected signals consistent with those emitted by an aircraft black box, indicating a potential breakthrough in the search for missing Malaysia Airlines flight MH370.
Two separate signals have been detected by Australian Defence Vessel Ocean Shield in the northern part of the search area.
In what he called "a most promising lead", Air Chief Marshal (ret) Angus Houston revealed that "the pinger locator has detected signals consistent with those emitted by aircraft black boxes". (Sydney Morning Herald, and others)
Monday, 7 April 2014—am AWST (JACC)
Up to nine military planes, three civil planes and 14 ships will assist in today's search for missing Malaysia Airlines flight MH370.
The search area is expected to be approximately 234,000 square kilometres.
Good weather is expected throughout the day with showers in the afternoon although this is not expected to affect the search.
ADV Ocean Shield is continuing investigations in its own area.
HMS Echo is en route to assist the Chinese vessel Haixun 01, which detected pulse signals in the Indian Ocean.
The Australian Transport Safety Bureau continues to refine the area where the aircraft entered the water based on continuing ground-breaking and multi-disciplinary technical analysis of satellite communication and aircraft performance, passed from the international air crash investigative team comprising analysts from Malaysia, the United States, the UK, China and Australia.
Quote:Sunday, 6 April 2014—am AWST(JACC)
Retired Air Chief Marshal Angus Houston (JACC dirrector): "This is an important and encouraging lead". BBC Video.
Up to 10 military planes, 2 civil planes and 13 ships will assist in Sunday's search for missing Malaysia Airlines flight MH370.
The Australian Maritime Safety Authority (AMSA) has three separate search areas planned for today about 2,000 kilometres north west of Perth, which total approximately 216,000 square kilometres.
Weather in the search area is expected to be good with a cloud base of 2,500 feet and visibility greater than 10 kilometres.
Reports overnight that the Chinese ship, Haixun 01, has detected electronic pulse signals in the Indian Ocean related to MH370 cannot be verified at this point in time.
Saturday 5 April 2014:
The Chinese maritime patrol ship Haixun 01 has picked up a 37.5 kHz pulse signal, according to Chinese media. Though there is no evidence it is from the MH370 "black box", the frequency is the same as used by fight recorders. (Xinhuanet, others)
5 April 2014—am - (JACC)
~10 military planes, three civil jets and 11 ships participated in today's search. ADV Ocean Shield and HMS Echo continued underwater search operations searching with TPL-25 towed pinger locator.
Weather was fair, with possible showers.
Friday 4 April 2014—JACC
Up to 10 military planes, four civil jets and nine ships participated in today's search for missing Malaysia Airlines flight MH370. One civil aircraft operated to provide communications relay.
The weather was is fair, with visibility approximately 10 kilometres and a cloud base between 1000 and 2000 feet.
Two ships, the HMAS Ocean Shield and HMS Echo, towed TPL-25 "towed pinger locators" to search for the "black box" 37.5 kHz signal; the "black box" (Flight Data and Cockpit Voice Recorder assembly) is powered for approximately 30 days.
Thursday 3 April 2014—am JACC
Up to eight planes (one dropping marker buoys) and nine ships were deployed on the SAR mission, an area of about 223,000 square kilometres, 1680 kilometres west north-west of Perth. Weather fair, with visibility approximately 10 kilometres, however the southern area may experience some isolated showers. No new findings today.
Wednesday, 2 April 2014 - JACC
Up to ten planes (one providing relay services) and nine ships will assist in today's search for missing Malaysia Airlines flight MH370. AMSA search area about 221,000 square kilometres,1504 kilometres North West of Perth.
British nuclear-powered Trafalgar class submarine HMS Tireless , with 138 crew including 18 officers, has joined the hunt for missing Malaysia Airlines flight MH370; the UK MOD has said it would assist in searchng for the "black box". (BBC)
Monday, 31 March: (AMSA Update #31, 8.00am (AEDT) 0000 UTC
10 aircraft searching, no notable results. The ADV Ocean Shield was scheduled to depart from Perth today. It has now been fitted with a black box detector and an autonomous underwater vehicle. Some parts of the search area will experience low cloud and rain throughout the day.
Sunday, March 30, 2014 AEDT: The search activities continued in an area about 1,850 kilometres west of Perth, focused on an area of about 319,000 square kilometres. Eight aircraft were involved in today’s search.
Ten ships arrived or were on station today: HMAS Success, the Chinese Maritime Safety Administration ship Haixun 01, China Rescue and Salvage Bureau ship Nan Hai Jiu, and the Chinese Navy vessel Jinggang Shan.All ships in the search area were tasked to locate and identify the objects sighted by aircraft over the past two days.
Weather in the search area included light showers and low cloud, though search operations are expected to continue.
AMSA Update #28, 30 March 2014: 0645(AEDT)
Debris spotted and identified by ship turned out to be fishing debris - a fishing vessel is missing and the search for the vessel has now been discontinued after finding the debris. - AMSA
Saturday, March 29, HMAS Success, the Chinese Maritime Administration patrol ship, Haixun 01, PLAN vessel Jinggangshan (carrying two helicopters) were active Saturday; the later specifically is searching for debris, oil slicks, lifejackets, etc. Eight aircraft were also launched today. A IL-76 from China spotted some small colourful debris (orange, white and red), dropped a marker and left the debris to be checked by ship - the debris, recovered and checked by Haixun 01, was not related to MH370. Weather began nicely but has been deteriorating today; the search day is over now. (National News Agency of Malaysia, BBC and others.)
The ANZAC class frigate HMAS Toowoomba left Perth this evening and is due to arrive in the search area in about three days.
Friday March 28 local time end of search day: Ten aircraft searched an area of nearly 100,000 sq mi / 256,000 sq km today. Five aircraft spotted debris in the new search area; another aircraft spotted debris 546 km away.
● AMSA announcement PDF
The search area has shifted northeastward ~1,100 km / 700 mi based on the theory the aircraft was flying faster than previously believed (skewing the imputed flight path and decreasing range based on available fuel). The new search area is approximately 123,127 sq mi / 319,000 sq km and around 1,150 mi / 1,850 km west of Perth. Satellites are being redeployed to survey the new search area. (Aviation Herald, Malay Mail online and others; BBC article link)
The Malaysian government is expected to appoint an international panel on aviation security along with a parliament select committee to probe overall airline safety... an official said in Kuala Lumpur on Saturday (29 Mar 2014).
Tuesday, 26 Mar, search activities were halted by Sea State 7; resumed Wednesday, Thursday 28 Mar again saw aircraft withdrawn from search activities.
If potential debris is spotted by satellite, further identification must be done by aircraft, and then recovered by ships for analysis. If debris proves positive from MH370, further analysis must determine drift distance and angle to a possible crash site. This all depends on the weather holding as well, though at least the search is no longer focused in the "Roaring Forties".
Soon, a US Navy Towed Pinger Locator will be towed by the HMAS Ocean Shield to try to detect "pings" from the aircraft's "black box", which is actually orange and consists of the Cockpit Voice Recorder (two hour loop) and Flight Data Recorder (25 hours continuous).
● BBC page on "black box" link
● BBC video "black box" search link.
If air and sea search fails, or further narrowing of the search area is required, sonar will be deployed and used. Support and research vessels, some of them with sonar and one with the U. S. autonomous underwater Bluefin 21, will then try to find the wreck amongst the sea bottom topography.
● BBC sonar search video link.
Information reveals that Malaysia Airlines chose not to add an upgrade to aircraft communications ("Swift") that could have continually transmitted aircraft data even with ACARS shut down. Rather than pay the cost of USD $10.90 per flight, MH opted to download the data to a USB thumb drive after the end of a flight, according to various sources. http://www.washingtonpost.com/world/...f19_story.html
Monday, 24 March, Malaysian prime minister announced that new satellite data showed that flight MH370 crashed into the Indian Ocean. In a brief statement he said: "It is with deep sadness and regret that I must inform you that... flight MH370 ended in the southern Indian Ocean." The ongoing multinational search operation would continue as they seek answers to the questions which remain.
Partners Inmarsat and SITA AIRCOM, UK and US aviation safety and security officials have determined MH370 may have flown up to seven hours beyond the point of last radar location; MH370 apparently broadcast automated hourly engine maintenance code "pings" received by satellite operator Inmarsat.
New satellite analysis techniques developed by British firm Inmarsat and the UK's Air Accidents Investigation Branch (AAIB) have "concluded that MH370 flew along the southern corridor, and that its last position was in the middle of the Indian Ocean", said Malaysian PM Najib Razak.
"This is a remote location, far from any possible landing sites. It is therefore with deep sadness and regret that I must inform you that, according to this new data, flight MH370 ended in the southern Indian Ocean."
Debris is being searched for, but the USA is sending a Towed Pinger Locator towed sled equipped to find "pingers" such as the "black box" pinger, which is designed to be powered for 25 - 30 days.
A number of aircraft, including four long range commercial planes, three RAAF and one RNZAF P-3 Orion anti-submarine surveillance aircraft, one USN P8 Poseidon, two Chinese IL-76 and two JASDF P-3 Orion aircraft are searching, joined by a Korean (ROKAF) P-3 Orion and C-130H. The ASW aircraft have observation ports for observers, Magnetic Anomaly Detector gear and can deploy various sonobuoys, etc.
Chinese, British and Australian naval ships have joined Australian supply ship HMAS Success, including China's ice-breaking Xuě Lóng (Snow Dragon) research vessel, (involved in the recent Antarctic rescue of the MV Akademik Shokalskiy) and three Chinese PLAN warships QianDaoHu, KunLunShan and Haikou, as well as merchant ship Zhonghai Shaohua, are participants as well. The U.K. is sending HMS Echo to join the search (has departed the Maldives), China is sending more vessels.
The HMAS Ocean Shield will be fitted on 28 Mar with the US "TPL" (Towed Pinger Locator) and "...is expected to reach the search area by 5 April, giving it only two days before the pinger's batteries possibly start to fade at 30 days."
The US is sending a UUV (autonomous unmanned underwater vehicle) Bluefin-21, designed by Bluefin Robotics, equipped with side-scanning sonar and a "multi-beam echo sounder" which can examine underwater objects in detail and operate in depths of up to 4,500 metres (14,700 ft) (BBC).
Malaysia has asked the FBI to help recover data it said was deleted from a home flight simulator belonging to the plane's chief pilot, Captain Zaharie Ahmad Shah, but otherwise no evidence has emerged to implicate him or the crew. FBI announced on 26 Mar a couple of more days are needed, but so far they have found no forensic evidence against Capt. Zaharie.
Please continue to use indigo text to highlight your changes until the next maintenance period (after ~00:01 UTC Friday).
Summary of events in the FAQ (Post #1) and what we think we know as of 14 Mar, 1727 UTC in this post.
EXTERNAL SOURCES
Aviation Herald — possibly the best and most objective summary in general, latest updates are highlighted in yellow — last updated on Sunday, Apr 6, 2014 at 11:40 UTC.
MH370 Flight Incident - official announcements by Malaysia Airlines
BBC tabbed pages with newest news of the MH370 incident
BBC: Ten Theories of MH370's Disappearance
Malaysian Prime Minister's statement that MH370 ended in the southern Indian Ocean, March 24, 2014 Youtube video
Live updates (Yahoo News Singapore)
Streaming news (WSJ)
Reuters graphics: story, search and emergency
How a pilot deals with an emergency. (BBC, Capt. Philip Riddell <spelling in conflict with BBC>)
Summary of events, known information and technical background Airliners.net
THREAD SUMMARY
Please Edit and Update as Needed! Please Use Indigo Text to Highlight Changes!
NOTE: While links to relevant and reasonably reliable news sources are welcome, please take a few minutes to scroll back a couple dozen posts to make sure a similar story hasn't already been posted. There have been many well-meaning posters eager to share “breaking news” that ends up having been posted by others hours before. Thanks for helping us to avoid redundancy and repetition!
Time Frame Confusion
Sources may appear to be reporting conflicting timeframes for various stages of the incident. However, this is likely due to confusion about time zone changes between Malaysia (last ATC contact) and Vietnam (next ATC contact) - see time zone map here for boundaries. Please report times in UTC/GMT wherever possible.
SAR / Search andRescueRecovery Operations Investigation
NOTE: Discussion of opinions and perspectives on SAR costs and timeliness, which involves coordination of 26 nations' civil and military authorities, is beyond the scope of this thread. Users have been advised to shift such discussion to OMNI - see post #2047. Thanks for your cooperation.
Reports indicate latest satellite ping around 0811 MYT (0011 GMT/UTC/Zulu), or nearly 7 hours after contact was lost.
Boeing and Rolls Royce have teams on site; the NTSB (USA) and UK AAIB are involved due to US and UK manufacture of aircraft and engines, France's BEA due to AF447 similarities and other resources are likely to be invited to assist. The U. S. FBI has become involved in investigating the crew, passengers and ground staff.
Reports that the aircraft climbed to 45,000 feet, above its service ceiling, and as low as 5,000 ft remain unverified. More here and in posts #3894 on.
Malaysia Airlines has issued a statement that the shipment of lithium-ion batteries was in compliance with the International Civil Aviation Organisation (ICAO) and the International Air Transport Association (IATA) requirements, where it is classified as "non-dangerous goods".
Disproven Reports to Date
Early reports that the plane had landed in Nanming, Vietnam or Nanning, China, have been disclaimed by Chinese authorities and MH leadership.
All reports of possible aircraft debris, up to and including a possible debris field off the southeast coast of Vietnam, China SASTIND satellite imagery from 9 Mar debris reported 105.63 east longitude, 6.7 north latitude investigated 12 Mar have been discredited. The latter is now "a mistake", according to SASTIND. Read more here.
Possible fuel slicks identified early on have been tested and determined NOT to be aircraft fuel.
Various life rafts found in the SAR ops area have been unrelated to the missing aircraft. See one example at this post.
Reports of another pilot contacting MH370 have been discredited.
Reports of passenger cell phones still ringing when called are almost certainly an artifact of international telephony - see explanation by one FTer at post #1832.
All claimed ground observations of the aircraft (Malaysia, Vietnam oil platform, etc.) data are unverified at this time.
Beware of data from sites like FlightRadar24, FlightAware, etc. These data are not entirely reliable, as they are synthesized; erroneous readings may be present on some sites. The aircraft could not climb to 49,500 feet as some sites may indicate, as this is considerably above the aircraft's design ceiling.
Authorities deny that five other passengers checked in for the flight, but did not board, stating the pax were actually no-shows who never checked in, and that no baggage was loaded for these five pax. Four standby passengers were accommodated.
Reports of seismic readings being possibly related to the aircraft crashing into seafloor have been described by experts as improbable. USGS records a natural earthquake off the west coast of Sumatra - info here
Other speculation (EMP, shot down, etc.) has been mentioned in the thread but currently has no basis, and is not appropriate for this thread. Please observe the moderator note at the beginning of this wiki.
Timeline/Facts (Please see FAQ / Post #1)
NOTE: flight number MH370/371 will be renumbered MH318/319 effective 14 March 2014
Quote:!!! REMINDER !!!
This thread is about the loss of MH370. In depth discussion of unrelated topics — geopolitics, passport theft, aviation security, airport security procedures, etc. — belongs in other fora. A few include:
OMNI/PR: Discussion of perspectives on politics and religion, including geopolitics and terrorism (requires 180 days on FT and 180 constructive posts prior to admission)
Travel Safety/Security: Checkpoints and Borders Policy Debate
Travel Safety/Security: Practical Travel Safety Issues for those discussing travel safety and security issues because they are planning a trip soon.
TravelBuzz: TravelBuzz for those wishing to discuss the relative safety of a specific aircraft - e.g. Boeing 777.
We have a number of Destination fora to discuss various aspects of destination travel (including airports, airport connections, etc.)MAPS, IMAGERY, GRAPHICS
Please try to re-size your pictures to fit the normal width. We have had several folks (particularly, but not exclusively, those on mobile devices) request that the size of graphics be "normal."
Area of debris sightings and searchThe original map was posted on BBC website but is too large to post here.
Ministry of Transport Malaysia:
INFORMATION PROVIDED TO MH370 INVESTIGATION BY UK AIR ACCIDENTS INVESTIGATION BRANCH (AAIB)
This diagram shows the Doppler contributions to the burst frequency offset.
Blue line: the burst frequency offset measured at the ground station for MH370.
Green line: is the predicted burst frequency offset for the southern route, which over the last 6 handshakes show close correlation with the measured values for MH370.
Red line: predicted burst frequency offset for northern route (which over last 6 ACARS - Inmarsat "handshakes" does not correlate with the measured values for MH370).
Archived maps
Map with calculated tracks (contribution by Reason077)
Nrg800 map showing runways within range, line of possible ping transmission and range limit from last radio contact.
See posts #4145 and #4163 for more info.
ADV Ocean Shield towed pinger locator detections - JACC
Signals detected by Chinese (5 April) and Australians (6 April) - BBC
Locations where signals were detected
Search area and location where possible signal detected, 6 April 2014 (BBC)
Search area and location where possible signal detected, 5 April 2014 (BBC)
Search area, 4 April 2014 (BBC)
Searach area, 2 April 2014 (BBC)
Search area, 1 April 2014 (BBC)
Search area, 30 March 2014 (BBC)
New search area, 28 March 2014 (BBC)
Detailed map of area of debris sightings and in original Indo-Australian search area (BBC)
Area of debris sightings
How big is the search area?
BBC map of search zones
BBC area and key events map
BBC possible final aircraft track map
NOTE: SEE FAQ (POST #1 - click to pop up in separate window) FOR FREQUENTLY ASKED QUESTIONS AND REPLIES, OTHER LINKS TO RESOURCES AND PREVIOUS GRAPHICS FROM THIS WIKI.
#16
Today
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Thanks!
I put that through Google translate and didn't get much info out of it. Looks like there are resolutions of 2m, 8m, and perhaps 16m. No band information.
However, it looks pretty much like the Chinese version of Landsat or Spot.
I put that through Google translate and didn't get much info out of it. Looks like there are resolutions of 2m, 8m, and perhaps 16m. No band information.
However, it looks pretty much like the Chinese version of Landsat or Spot.
#17
Much better. That entry has a further link to http://www.nasaspaceflight.com/2013/...h-2d-gaofen-1/, which could be useful in the Wiki/FAQ.
Unfortunately, the high-res sensor is a CCD panchromatic device, which is probably going to be hard to use to find anything, as I suspect it's only RGB. The multi-spectral scanner, which could be useful, has a resolution of 8m, which means that anything it would detect would only show up as a few pixels.
Unfortunately, the high-res sensor is a CCD panchromatic device, which is probably going to be hard to use to find anything, as I suspect it's only RGB. The multi-spectral scanner, which could be useful, has a resolution of 8m, which means that anything it would detect would only show up as a few pixels.
#18
Quote:
I put that through Google translate and didn't get much info out of it. Looks like there are resolutions of 2m, 8m, and perhaps 16m. No band information.
However, it looks pretty much like the Chinese version of Landsat or Spot.
Its resolution is 2m. The image color spectrum includes red, yellow, green and blue bands. 4 days are needed for taking the shots of entire globe.Originally Posted by greg5
Thanks!I put that through Google translate and didn't get much info out of it. Looks like there are resolutions of 2m, 8m, and perhaps 16m. No band information.
However, it looks pretty much like the Chinese version of Landsat or Spot.
#20
Quote:
That sounds like the plausible theory right now from the comparisons that are being made on the news.Originally Posted by ironmouse
Could this latest Chinese sighting possibly be the same piece that the Australians picked up and has drifted to another location?
#21
mAAine_flyer , Mar 22, 2014 7:02 am
Quote:
Not quite correct. A panchromatic sensor is a single channel detector sensitive to EM radiation (i.e., light) over a broad range of wavelengths (usually corresponding to the visible part of the spectrum). It produces a grayscale image. For an 8-bit data product (typical for satellite imaging systems), each pixel has 256 possible shades of gray (0=black, 255=white).Originally Posted by greg5
Unfortunately, the high-res sensor is a CCD panchromatic device, which is probably going to be hard to use to find anything, as I suspect it's only RGB.
Quote:
True. But imaging systems with pan and multispectral sensors offer the potential for pan-sharpening, i.e., fusing the two data products and essentially using the panchromatic image to "sharpen" the resolution of the spectral bands.Originally Posted by greg5
The multi-spectral scanner, which could be useful, has a resolution of 8m, which means that anything it would detect would only show up as a few pixels.
#22
EsherFlyer , Mar 22, 2014 7:24 am
Quote:
If they are using that then hopefully a cluster of ~10 pixels will be enough to be 'unusual' - in the sense of being a relatively large number where you don't expect many at all.Originally Posted by greg5
The multi-spectral scanner, which could be useful, has a resolution of 8m, which means that anything it would detect would only show up as a few pixels.
Maybe they already used that to speed up the search of the visible spectrum, which I assume the released images to be? Are both arrays used at same time (as in within a small number of minutes)?
#23
allynelaine , Mar 22, 2014 8:09 am
Quote:
CNN - some reporter type from Perth just stated that this object (75 miles away) could not be the same object; that is, could not have drifted that far in 48 hours. I'd like to hear more opinions on that possibility and I am sure we will.Originally Posted by ironmouse
Could this latest Chinese sighting possibly be the same piece that the Australians picked up and has drifted to another location?
#24
Quote:
Maybe they already used that to speed up the search of the visible spectrum, which I assume the released images to be? Are both arrays used at same time (as in within a small number of minutes)?
Originally Posted by EsherFlyer
If they are using that then hopefully a cluster of ~10 pixels will be enough to be 'unusual' - in the sense of being a relatively large number where you don't expect many at all.Maybe they already used that to speed up the search of the visible spectrum, which I assume the released images to be? Are both arrays used at same time (as in within a small number of minutes)?
Due to the atmospheric scattering in the blue and green bands of visible, they'll be nearly useless for detection. It's better to split the bands out and work with red. Better yet to detect the infrared and do false color. With this the water will absorb most of the red and IR and anything metal will reflect back dramatically bright.
It looks like the Chinese plan on launching a satellite with radar capability, which would be pretty useful.
During my university days I did a bit of satellite image processing on a project for the US Forest Service.
#25
trailboss99 , Mar 22, 2014 8:18 am
Latest media release from the AMSA:
Quote:
23rd March, 2014: 0001 (AEDT)
Search to resume on Sunday for flight MH370: Update 10
The Australian Maritime Safety Authority search operation for Malaysia Airlines flight MH370 has
concluded for today.
During Saturday’s search activities a civil aircraft tasked by AMSA reported sighting a number of small
objects with the naked eye, including a wooden pallet, within a radius of five kilometres.
A Royal New Zealand Air Force (RNZAF) P3 Orion aircraft with specialist electro-optic observation
equipment was diverted to the location, arriving after the first aircraft left but only reported sighting
clumps of seaweed.
The RNZAF Orion dropped a datum marker buoy to track the movement of the material. A merchant
ship in the area has been tasked to relocate and seek to identify the material.
The search area experienced good weather conditions on Saturday with visibility of around 10 kilometres
and moderate seas.
The Royal Australian Air Force, the Royal New Zealand Air Force, two chartered civil aircraft and two
merchant ships supported Saturday’s search effort in a 36,000 square kilometre search area in the
Australian Search and Rescue Region.
Since AMSA assumed coordination of the search on Monday 17 March, 15 sorties have been flown and
more than 150 hours of air time has been committed by the air crews to the task.
Four military aircraft assisted in today’s search, as well as two ultra-long range jets. Ten State
Emergency Service (SES) volunteers from Western Australia were tasked as air observers today, along
with two AMSA mission coordinators on the civilian aircraft. AMSA runs a training program across the
country to train SES volunteers in air observation for land and sea searches.
The Royal Australian Navy’s HMAS Success has arrived in the search area. Two merchant ships are
also in the search area.
The search will resume tomorrow and further attempts will be made to establish whether the objects
sighted are related to MH370.
This evening China provided a satellite image to Australia possibly showing a 22.5 metre floating object
in the southern Indian Ocean. AMSA has plotted the position and it falls within Saturday’s search area.
The object was not sighted on Saturday.
AMSA will take this information into account in tomorrow’s search plans.
Enquiries: [email protected]
Media kit and latest charts: http://www.amsa.gov.au/media/incidents/mh370-search.asp
23rd March, 2014: 0001 (AEDT)
Search to resume on Sunday for flight MH370: Update 10
The Australian Maritime Safety Authority search operation for Malaysia Airlines flight MH370 has
concluded for today.
During Saturday’s search activities a civil aircraft tasked by AMSA reported sighting a number of small
objects with the naked eye, including a wooden pallet, within a radius of five kilometres.
A Royal New Zealand Air Force (RNZAF) P3 Orion aircraft with specialist electro-optic observation
equipment was diverted to the location, arriving after the first aircraft left but only reported sighting
clumps of seaweed.
The RNZAF Orion dropped a datum marker buoy to track the movement of the material. A merchant
ship in the area has been tasked to relocate and seek to identify the material.
The search area experienced good weather conditions on Saturday with visibility of around 10 kilometres
and moderate seas.
The Royal Australian Air Force, the Royal New Zealand Air Force, two chartered civil aircraft and two
merchant ships supported Saturday’s search effort in a 36,000 square kilometre search area in the
Australian Search and Rescue Region.
Since AMSA assumed coordination of the search on Monday 17 March, 15 sorties have been flown and
more than 150 hours of air time has been committed by the air crews to the task.
Four military aircraft assisted in today’s search, as well as two ultra-long range jets. Ten State
Emergency Service (SES) volunteers from Western Australia were tasked as air observers today, along
with two AMSA mission coordinators on the civilian aircraft. AMSA runs a training program across the
country to train SES volunteers in air observation for land and sea searches.
The Royal Australian Navy’s HMAS Success has arrived in the search area. Two merchant ships are
also in the search area.
The search will resume tomorrow and further attempts will be made to establish whether the objects
sighted are related to MH370.
This evening China provided a satellite image to Australia possibly showing a 22.5 metre floating object
in the southern Indian Ocean. AMSA has plotted the position and it falls within Saturday’s search area.
The object was not sighted on Saturday.
AMSA will take this information into account in tomorrow’s search plans.
Enquiries: [email protected]
Media kit and latest charts: http://www.amsa.gov.au/media/incidents/mh370-search.asp
#26
Quote:
Unfortunately, that makes it even worse. While the visible spectrum makes it nice for us humans to look at things, trying to detect something in the water will be made more difficult because of the blue and green in the mix. Originally Posted by mAAine_flyer
Not quite correct. A panchromatic sensor is a single channel detector sensitive to EM radiation (i.e., light) over a broad range of wavelengths (usually corresponding to the visible part of the spectrum). It produces a grayscale image. For an 8-bit data product (typical for satellite imaging systems), each pixel has 256 possible shades of gray (0=black, 255=white).
Quote:
The way we did things in the project I mentioned in a previous post was to use clustering to bring out the likely reflectivity of various land cover we were trying to identify. Originally Posted by mAAine_flyer
True. But imaging systems with pan and multispectral sensors offer the potential for pan-sharpening, i.e., fusing the two data products and essentially using the panchromatic image to "sharpen" the resolution of the spectral bands.
I'd imagine the same sort of process could be used in what you mention. Not so much to 'sharpen' the resolution of the bands, but to assign a specific land cover type to a specific cluster.
Now, with a view over the ocean, there is only two land covers to try to find: Water, and not water. Water will absorb almost all IR light, so almost anything that shows up in the IR with high reflectivity will be a floating object. Then again, a cresting wave may show up with a good deal of reflectivity as well.
In any case, I think it's a difficult task.
#27
Quote:
I think it's very likely. It's just over 1,600 miles from Perth, really close to the 1,500 mi figure given by Australia.Originally Posted by ironmouse
Could this latest Chinese sighting possibly be the same piece that the Australians picked up and has drifted to another location?
#28
SingaporeDon , Mar 22, 2014 12:54 pm
Looks like in addition to the Chinese satellite sighting, a civilian aircraft also saw some small debris in the AMSA search area on Saturday
"During Saturday’s search activities a civil aircraft tasked by AMSA reported sighting a number of small objects with the naked eye, including a wooden pallet, within a radius of five kilometres. "
AMSA map released 22 March showing location of debris sited by Chinese satellites in relation to these objects sited Saturday by an AMSA flight
Map:
https://s3-ap-southeast-2.amazonaws....ed+chinese.pdf
AMSA press release
http://www.amsa.gov.au/media/documen...ate10MH370.pdf
"During Saturday’s search activities a civil aircraft tasked by AMSA reported sighting a number of small objects with the naked eye, including a wooden pallet, within a radius of five kilometres. "
AMSA map released 22 March showing location of debris sited by Chinese satellites in relation to these objects sited Saturday by an AMSA flight
Map:
https://s3-ap-southeast-2.amazonaws....ed+chinese.pdf
AMSA press release
http://www.amsa.gov.au/media/documen...ate10MH370.pdf
#29
FWIW, Sky News in the UK is running a decent (factual not speculative) 'special report' on the missing plane. They pulled in some apparently credible people including a senior ex 777 BA pilot and an Oceanographer. The Oceanographer reckoned there's no way the Chinese satellite debris could be the same as what Australians spotted. He seems absolutely certain it could not have travelled that far in the time frame.
#30
FlightWhite , Mar 22, 2014 2:24 pm
Quote:
2 days, 200 km... needs ~ 1m/s... backwards against the prevailiing IO circulation. I'd tend to agree.Originally Posted by dca100
FWIW, Sky News in the UK is running a decent (factual not speculative) 'special report' on the missing plane. They pulled in some apparently credible people including a senior ex 777 BA pilot and an Oceanographer. The Oceanographer reckoned there's no way the Chinese satellite debris could be the same as what Australians spotted. He seems absolutely certain it could not have travelled that far in the time frame.