Scott Tilley
@coastal8049.bsky.social
if (Coherence == Integrity)
transmit();
else
receive();
transmit();
else
receive();
DRO-B has been confirmed to be in a new orbit based on reception of X-band signals.
The spacecraft remains at low declination but will rapidly rise northward over the next couple of days allowing more data to be obtained. 🧵⬇️
The spacecraft remains at low declination but will rapidly rise northward over the next couple of days allowing more data to be obtained. 🧵⬇️
November 11, 2025 at 1:55 AM
DRO-B has been confirmed to be in a new orbit based on reception of X-band signals.
The spacecraft remains at low declination but will rapidly rise northward over the next couple of days allowing more data to be obtained. 🧵⬇️
The spacecraft remains at low declination but will rapidly rise northward over the next couple of days allowing more data to be obtained. 🧵⬇️
US military officials now require permission to discuss many topics with Congress including "Spectrum, which refers to the electromagnetic spectrum that underpins military operations and other key US government functions."
www.cnn.com/2025/11/02/p...
www.cnn.com/2025/11/02/p...
Hegseth bars military officials from discussing drug boat strikes with Congress without prior approval | CNN Politics
The Office of Secretary of Defense Pete Hegseth has disemminated a broad list of topics that DoD personnel are now required to seek prior approval on before engaging with Congress, which includes any ...
www.cnn.com
November 3, 2025 at 12:35 AM
US military officials now require permission to discuss many topics with Congress including "Spectrum, which refers to the electromagnetic spectrum that underpins military operations and other key US government functions."
www.cnn.com/2025/11/02/p...
www.cnn.com/2025/11/02/p...
Spooky Moon and natural cobwebs over the dish antennas...
Happy Halloween all! 🎃
Happy Halloween all! 🎃
November 1, 2025 at 4:21 AM
Spooky Moon and natural cobwebs over the dish antennas...
Happy Halloween all! 🎃
Happy Halloween all! 🎃
DRO-A still hanging around the Moon and actually angularly close to it tonight.
Data sidebands clearly visible and tantalizing close to being decodable.
Data sidebands clearly visible and tantalizing close to being decodable.
November 1, 2025 at 4:18 AM
DRO-A still hanging around the Moon and actually angularly close to it tonight.
Data sidebands clearly visible and tantalizing close to being decodable.
Data sidebands clearly visible and tantalizing close to being decodable.
As expected TIANWEN-2 appeared on X-band today, likely ahead or possibly just after it's first major deep space burn.
🧵⬇️
🧵⬇️
October 30, 2025 at 7:51 PM
As expected TIANWEN-2 appeared on X-band today, likely ahead or possibly just after it's first major deep space burn.
🧵⬇️
🧵⬇️
🚨 DRO-B in new Orbit.
The Minor Planet Electronic Circular 2025-U223 identified a new object 2015 US6, & this was later determined to DRO-B and deleted from the registry in (M.P.E.C) 2025-U218.
Using those, an estimate of the trajectory was made and what I found surprised me!
🧵⬇️
The Minor Planet Electronic Circular 2025-U223 identified a new object 2015 US6, & this was later determined to DRO-B and deleted from the registry in (M.P.E.C) 2025-U218.
Using those, an estimate of the trajectory was made and what I found surprised me!
🧵⬇️
October 30, 2025 at 3:36 AM
🚨 DRO-B in new Orbit.
The Minor Planet Electronic Circular 2025-U223 identified a new object 2015 US6, & this was later determined to DRO-B and deleted from the registry in (M.P.E.C) 2025-U218.
Using those, an estimate of the trajectory was made and what I found surprised me!
🧵⬇️
The Minor Planet Electronic Circular 2025-U223 identified a new object 2015 US6, & this was later determined to DRO-B and deleted from the registry in (M.P.E.C) 2025-U218.
Using those, an estimate of the trajectory was made and what I found surprised me!
🧵⬇️
Wondering how the Starshield constellation is presently structured?
This animation using non-government data and the known active satellites on S-band show you how it's presently structured.
It has global coverage with 180° 'dense' regions. 🧵⬇️
This animation using non-government data and the known active satellites on S-band show you how it's presently structured.
It has global coverage with 180° 'dense' regions. 🧵⬇️
October 20, 2025 at 5:38 AM
Wondering how the Starshield constellation is presently structured?
This animation using non-government data and the known active satellites on S-band show you how it's presently structured.
It has global coverage with 180° 'dense' regions. 🧵⬇️
This animation using non-government data and the known active satellites on S-band show you how it's presently structured.
It has global coverage with 180° 'dense' regions. 🧵⬇️
Learn how to read the my Starshield dataset. 🧵⬇️
I began active RF study of classified US military satellites in the early 2010s. Early experiences used brute force search methods and these methods evolved into the development of @cbassa.bsky.social's STRF.
www.youtube.com/watch?v=R1So...
I began active RF study of classified US military satellites in the early 2010s. Early experiences used brute force search methods and these methods evolved into the development of @cbassa.bsky.social's STRF.
www.youtube.com/watch?v=R1So...
The Recovery of USA-225
YouTube video by The Satellite Tracking Channel
www.youtube.com
October 19, 2025 at 11:45 PM
Learn how to read the my Starshield dataset. 🧵⬇️
I began active RF study of classified US military satellites in the early 2010s. Early experiences used brute force search methods and these methods evolved into the development of @cbassa.bsky.social's STRF.
www.youtube.com/watch?v=R1So...
I began active RF study of classified US military satellites in the early 2010s. Early experiences used brute force search methods and these methods evolved into the development of @cbassa.bsky.social's STRF.
www.youtube.com/watch?v=R1So...
Reflecting on today:
A few years ago, I had the privilege of discussing space policy with Bruce McClintock. His later work continues to resonate with me, and I highly recommend reading it.
It’s enlightened, forward-looking guidance for the new space era.
www.rand.org/pubs/perspec...
A few years ago, I had the privilege of discussing space policy with Bruce McClintock. His later work continues to resonate with me, and I highly recommend reading it.
It’s enlightened, forward-looking guidance for the new space era.
www.rand.org/pubs/perspec...
Responsible Space Behavior for the New Space Era
The early space domain was dominated by two superpowers. Today, the world has more than 60 spacefaring nations, multiple commercial space operators, and a global economy that is inextricably linked to...
www.rand.org
October 18, 2025 at 2:01 AM
Reflecting on today:
A few years ago, I had the privilege of discussing space policy with Bruce McClintock. His later work continues to resonate with me, and I highly recommend reading it.
It’s enlightened, forward-looking guidance for the new space era.
www.rand.org/pubs/perspec...
A few years ago, I had the privilege of discussing space policy with Bruce McClintock. His later work continues to resonate with me, and I highly recommend reading it.
It’s enlightened, forward-looking guidance for the new space era.
www.rand.org/pubs/perspec...
Mysterious downlink signals from SpaceX’s classified Starshield satellites in a frequency band reserved for uplinks — raising concerns over spectrum rules and possible interference with other satellites. 🧵⬇️
www.npr.org/2025/10/17/n...
www.npr.org/2025/10/17/n...
A classified network of SpaceX satellites is emitting a mysterious signal
An amateur satellite tracker stumbled across the signal which is coming from Starshield satellites in a "hidden" part of the radio spectrum.
www.npr.org
October 17, 2025 at 9:19 AM
Mysterious downlink signals from SpaceX’s classified Starshield satellites in a frequency band reserved for uplinks — raising concerns over spectrum rules and possible interference with other satellites. 🧵⬇️
www.npr.org/2025/10/17/n...
www.npr.org/2025/10/17/n...
Reposted by Scott Tilley
Here's the latest on the UK contact that includes a HamTV test this Saturday.
The HamTV unit is scheduled to send "tone and bars" during the 08:15 UTC pass. Live video from the ISS will be attempted during the 09:51 UTC pass.
Watch ARISS social for updates!
The HamTV unit is scheduled to send "tone and bars" during the 08:15 UTC pass. Live video from the ISS will be attempted during the 09:51 UTC pass.
Watch ARISS social for updates!
October 16, 2025 at 4:40 PM
Here's the latest on the UK contact that includes a HamTV test this Saturday.
The HamTV unit is scheduled to send "tone and bars" during the 08:15 UTC pass. Live video from the ISS will be attempted during the 09:51 UTC pass.
Watch ARISS social for updates!
The HamTV unit is scheduled to send "tone and bars" during the 08:15 UTC pass. Live video from the ISS will be attempted during the 09:51 UTC pass.
Watch ARISS social for updates!
More bad news from JPL.
~550 more people to be laid off on October 14th.
www.jpl.nasa.gov/news/jpl-wor...
~550 more people to be laid off on October 14th.
www.jpl.nasa.gov/news/jpl-wor...
JPL Workforce Update
A message from JPL Director Dave Gallagher
www.jpl.nasa.gov
October 13, 2025 at 8:35 PM
More bad news from JPL.
~550 more people to be laid off on October 14th.
www.jpl.nasa.gov/news/jpl-wor...
~550 more people to be laid off on October 14th.
www.jpl.nasa.gov/news/jpl-wor...
Reposted by Scott Tilley
CNSA has released an image of Tianwen-2 in deep space using a robotic arm, giving us a proper look at the spacecraft and return capsule for delivering samples from near Earth asteroid 469219 Kamoʻoalewa. Tianwen-2 has been in space for 125 days, is 45 million km from Kamoʻoalewa.
October 1, 2025 at 1:54 AM
CNSA has released an image of Tianwen-2 in deep space using a robotic arm, giving us a proper look at the spacecraft and return capsule for delivering samples from near Earth asteroid 469219 Kamoʻoalewa. Tianwen-2 has been in space for 125 days, is 45 million km from Kamoʻoalewa.
CGO in the IMAP and SWFO-L1 mob also LHCP and emitting a nice strong signal today.
September 25, 2025 at 7:43 PM
CGO in the IMAP and SWFO-L1 mob also LHCP and emitting a nice strong signal today.
SWFO-L1 is LHCP and producing really nice signals on S-band. Likely easily decodable data. The mission is around the distance of the Moon as I record this.
September 25, 2025 at 7:42 PM
SWFO-L1 is LHCP and producing really nice signals on S-band. Likely easily decodable data. The mission is around the distance of the Moon as I record this.
IMAP on X-band. The spacecraft rotates as part of its design at 4 RPM (15s period). This is clearly visible as the periodic rotation of the antenna is summed onto the Doppler.
September 25, 2025 at 7:01 PM
IMAP on X-band. The spacecraft rotates as part of its design at 4 RPM (15s period). This is clearly visible as the periodic rotation of the antenna is summed onto the Doppler.
TIANWEN-2 making a rare radio emission today.
The spacecraft is believed to be using solar electric propulsion and may need to change attitude to thrust and only aim at Earth for ranging and comms periodically. 🧵⬇️
The spacecraft is believed to be using solar electric propulsion and may need to change attitude to thrust and only aim at Earth for ranging and comms periodically. 🧵⬇️
September 25, 2025 at 5:51 PM
TIANWEN-2 making a rare radio emission today.
The spacecraft is believed to be using solar electric propulsion and may need to change attitude to thrust and only aim at Earth for ranging and comms periodically. 🧵⬇️
The spacecraft is believed to be using solar electric propulsion and may need to change attitude to thrust and only aim at Earth for ranging and comms periodically. 🧵⬇️
Checked in on CHANG'E 6 service module still in the vicinity of the Earth-Sun L2 Lagrange point.
September 25, 2025 at 9:08 AM
Checked in on CHANG'E 6 service module still in the vicinity of the Earth-Sun L2 Lagrange point.
USA 310 continues to show a stable specular glint at ~50° phase, confirming reflection from a fixed surface over days.
September 25, 2025 at 2:31 AM
USA 310 continues to show a stable specular glint at ~50° phase, confirming reflection from a fixed surface over days.
I have an UNID on S-Band at ~2258.1MHz in lock with something on the same beaming as SWFO-L1.
Most like the Carruthers Geocorona Observatory a cubesat launched with SWFO-L1 and IMAP.
Most like the Carruthers Geocorona Observatory a cubesat launched with SWFO-L1 and IMAP.
September 25, 2025 at 12:05 AM
I have an UNID on S-Band at ~2258.1MHz in lock with something on the same beaming as SWFO-L1.
Most like the Carruthers Geocorona Observatory a cubesat launched with SWFO-L1 and IMAP.
Most like the Carruthers Geocorona Observatory a cubesat launched with SWFO-L1 and IMAP.
Space Weather Follow On - Lagrange 1 (SWFO-L1) found in lock with DSN Canberra and ranging.
Range is about 280000km from Earth on its way to the Earth-Moon L1.
I just found it as it was descending into the trees here.
Range is about 280000km from Earth on its way to the Earth-Moon L1.
I just found it as it was descending into the trees here.
September 25, 2025 at 12:04 AM
Space Weather Follow On - Lagrange 1 (SWFO-L1) found in lock with DSN Canberra and ranging.
Range is about 280000km from Earth on its way to the Earth-Moon L1.
I just found it as it was descending into the trees here.
Range is about 280000km from Earth on its way to the Earth-Moon L1.
I just found it as it was descending into the trees here.
The dome was getting a bit out of hand so did a big tidy, lubed and dressed all the cabling. Ready for a winter of on demand use.
September 22, 2025 at 4:41 AM
The dome was getting a bit out of hand so did a big tidy, lubed and dressed all the cabling. Ready for a winter of on demand use.
USA 310 continues to be the object of my focus as light curve data collection continues.
Due to high altitude ~11000km it's not possible to directly image. So we need to infer the shape of the spacecraft from light curve inversion techniques.
The data is tantalizing! 🧵⬇️
Due to high altitude ~11000km it's not possible to directly image. So we need to infer the shape of the spacecraft from light curve inversion techniques.
The data is tantalizing! 🧵⬇️
September 21, 2025 at 12:27 AM
USA 310 continues to be the object of my focus as light curve data collection continues.
Due to high altitude ~11000km it's not possible to directly image. So we need to infer the shape of the spacecraft from light curve inversion techniques.
The data is tantalizing! 🧵⬇️
Due to high altitude ~11000km it's not possible to directly image. So we need to infer the shape of the spacecraft from light curve inversion techniques.
The data is tantalizing! 🧵⬇️
Near Earth asteroid (112985) 2002 RS28, a mere 0.548 AU away is tipping in with a 16.9mag brightness this night. This is about 20 minutes of 10s frames.
🧵⬇️
🧵⬇️
September 20, 2025 at 7:08 AM
Near Earth asteroid (112985) 2002 RS28, a mere 0.548 AU away is tipping in with a 16.9mag brightness this night. This is about 20 minutes of 10s frames.
🧵⬇️
🧵⬇️