Jon Engelsman

engineer ¬ ground software @umbraspace 📡🛰️

[Jon Engelsman @engelsjk]

Here's a visualization tool I've been working on to explore the global swath coverage of 1+ million declassified spy satellite images. https://t.co/oEY7N8NpyE 🧵

[Jon Engelsman @engelsjk]

@mouthofmorrison Internet Archive: https://t.co/OlceANeeFF

[Jon Engelsman @engelsjk]

@CORONAGAMBIT @aaronbateman22 @shell_jim It’s the declassified imagery with available scans highlighted. I built the site in mid-2022 and didn't realize that USGS has added ~150k more images online since then. Mostly KH-9 with ~4k more just from 1219-3. Thanks for spotting that, I've updated the site with newer data.

[Jon Engelsman @engelsjk]

@steffanwatkins That'd be my guess. Here are a few other examples from C-FXAG #C03CC3 last year.

[Jon Engelsman @engelsjk]

@steffanwatkins C-GGRD #C0563E flew a similar pattern at the same location in Aug 2023.
https://t.co/VMlUr6ToTH
Possibly related to airborne geophysics surveying by Xcalibur Multiphysics.
https://t.co/BtWDeeAGCy (photo link)

[Todd Master @MasterActual]

High graze SAR or art?

[Jon Engelsman @engelsjk]

@whatisnuclear @Daniel_W_See It might be the BWXT NOG plant in Virginia. https://t.co/cZ1OJw7ES7

[Joe Morrison @mouthofmorrison]

Umbra is officially working with NASA now 🚀🚀🚀
https://t.co/BfpemVaAGk

[Todd Master @MasterActual]

I have a team of straight-up wizards working for me here at @umbraspace. A peek at something we've been working on - change detection products. In this shot, we're showing the changes at #BurningMan from Wednesday night to Friday morning. Blue = new objects, red = fled / moved.

[Umbra @umbraspace]

We just crossed $1M of free SAR data released into our open data program 😏

[Umbra @umbraspace]

Crater Lake, OR

[Umbra @umbraspace]

Launch to first light in less than 48 hours - welcome to the family, Umbra 06.

[Jon Engelsman @engelsjk]

@GrantWTrent @NuclearAnthro Looks like they tested some in 1975 but didn't pursue the design at the time.

[Jon Engelsman @engelsjk]

@Watching_Planes Cast Glance!

[Todd Master @MasterActual]

As a (former) District resident, I was always annoyed that satellite imagery of DC was just the National Mall and I could never say "hey I can see my house from here!" So I tasked 4 spotlight images in a row to get the full N-S extent of NW DC in glorious #SAR from @umbraspace

[Bulletin of the Atomic Scientists @BulletinAtomic]

What is NEST?

As Jeffrey Richelson put it, "if a similar organization did not exist in the real world, Hollywood probably would have created one.”

Jay A. Tilden and Dallas Boyd write for the Bulletin on the crucial, yet little-known team.
https://t.co/s4xCnsKnqO

[Rob Simmon @rsimmon]

One of the more impressive @planet images I’ve had the privilege of working on lately. All 9 Himalayan 8,000-meter peaks in one view, taken from over Afghanistan.

[Andrew McCarthy @AJamesMcCarthy]

Last night I captured an incredibly difficult shot: ISS transiting the moon, while gently kissing Tycho crater as it flies by at 5 miles per second. That crater is 53 miles wide, so while the station almost looks like it's orbiting the moon it's actually 1000x closer to us.

[Nancy Grace Roman Space Telescope @NASARoman]

New hardware close-up! @BallAerospace has installed & aligned Roman's element assembly wheel into the Wide Field Instrument. Through elements like Roman's grism & prism, cosmic light can be dispersed into rainbow-like measurements!
https://t.co/PM7NFjov9d
📷 Ball Aerospace

[Jon Engelsman @engelsjk]

📷 Left Navigation Camera
NASA/JPL-Caltech

[Jon Engelsman @engelsjk]

@Harry__Stranger Your project was a big inspiration for this! The spreadsheet and @Soar_Earth uploads are what originally led me to the EarthExplorer data and got me curious about these archives.

[Jon Engelsman @engelsjk]

Here's a visualization tool I've been working on to explore the global swath coverage of 1+ million declassified spy satellite images. https://t.co/oEY7N8NpyE 🧵