The position where the photograph of the `` latest stealth bomber '' was taken is identified from the propaganda tweet of the US military
The US Air Force has released a photo of the `` B-21 Raider '', a state-of-the-art stealth bomber of `` dual wielding '' that can carry nuclear warheads and conventional bullets on Twitter. At this time, a Twitter user appeared who determined the position of the stealth bomber with high accuracy from the starry sky reflected in the background.
Below is a tweet of the stealth bomber 'B-21 Raider' posted by the US Air Force. Two photos are attached to the post, one of the B-21 parked in the hangar and the other with the night sky in the background.
Unveiled today, the B-21 Raider will be a dual-capable, penetrating-strike stealth bomber capable of delivering both conventional and nuclear munitions. B-52s.(US Air Force photo) pic.twitter.com/X6KSU7sy6U— US Air Force (@usairforce) December 3, 2022
John McElhone, co-founder of CropSafe, a company that provides technology using satellites, responded to this. He tweeted that it is possible to pinpoint the position of the aircraft from the starry sky of the US Air Force photo.
The photo of the US Air Force's new stealth aircraft is on the left, taken at night, with stars in the background.— John McElhone (@johnmcelhone8) December 8, 2022
We can use them to find the exact location of the jet
To determine where the photo was taken, McElhone first looked at the stars in the night sky behind the stealth bomber using Astrometry.net , which superimposes constellations on uploaded images of the starry sky. I was.
2. https://t.co/igzvTqodvl will let us upload a star photo and draw out matching constellations. Also gives us a bunch of star chart files we can use later pic.twitter.com/y10toCGhdK— John McElhone (@johnmcelhone8) December 8, 2022
Next, get metadata such as the date the photo was taken from the image posting page published by the US Air Force. Although this data has been rewritten at the time of writing the article, it was originally published as it was due to a mistake, and it was possible to excavate it using the Internet Archive's Wayback Machine.
3. On the source website of the image, we have some metadata like the date taken. It's been scrubbed since it was posted, probably after realizing their mistake, but I used Waybackmachine to grab the date of the original (right) pic.twitter .com/Mk00mi49Jy— John McElhone (@johnmcelhone8) December 8, 2022
There is only a date in the metadata, but by overlaying the image with the open source planetarium Stellarium , we can infer that the image was taken at 1:30 am. According to Mr. McElhone, this time is the time when the number of satellites flying over the United States is the lowest, so it is perfect for getting the stealth aircraft out of the hangar.
Furthermore, Mr. McElhone, who determined that the shooting point was 34 degrees latitude from the position of the North Star relative to the horizon, drew a 34-degree line on the map of the United States and searched for an air force base located on that line.
6. We're going to assume the location is somewhere within the US, so we can plot a 34-degree latitude line across the country. There are a bunch of USAF bases across the country, but not many intersect the line pic.twitter .com/xQxt26pDRQ— John McElhone (@johnmcelhone8) December 8, 2022
There are many military bases across the United States, but not many are located at 34 degrees latitude. In addition, most of the US military's stealth aircraft are manufactured in California, and the B-21 Raider is also being developed by Northrop Grumman, which is developing aircraft in California, so the candidate base is in California. can be narrowed down to That leaves Edwards Air Force Base as the only match.
There are not many Northrop Grumman development facilities at Edwards Air Force Base, but there is a Northrop Grumman development base at Palmdale Regional Airport, 30 miles (about 48 km) south of the base. Looking at Google Maps, there was a B-2 aircraft shadow there.
7. Northrop Grumman doesn't have many development facilities at Edwards, but they do 30 miles south at Palmdale Regional Airport. The same place they developed the B-2 aircraft. One is visible from Google Maps view pic.twitter.com/8oZvehnfTY— John McElhone (@johnmcelhone8) December 8, 2022
From the shape of the building in the B-21 Raider photo released by the Air Force, it is clear that this is the location where the photo was taken.
8. The development facility is pretty small here, so it's not too difficult to find the exact hanger, matching the photo with the additional building to the right and tent behind pic.twitter.com/pUhQSvMyuH— John McElhone (@johnmcelhone8) December 8, 2022
McElhone used only public information to determine that the photo was taken at the US Air Force Factory 42 on November 29, 2022 at about 1:30 am.
10. So now we know the image is of Northrop Grumman's B-21, taken at approximately 1:30am on November 29th 2022 at Air Force Plant 42 (34.6399, -118.0744)— John McElhone (@johnmcelhone8) December 8, 2022
(this data is all public now)
in Web Service, Ride, Posted by log1l_ks