Scott Tilley

The emissions between 1990-1995MHz appear compliant with FCC grants. docs.fcc.gov/public/attac...

After days of monitoring the Starlink V2 Mini DTC emissions on ~2010.5MHz, I deployed the 1.8m dish to track a number of the objects this morning. Here's STARLINK-11321 emitting broadband data (4.5MHz) centred on ~1992.5MHz. Every Starlink DTC object I tracked emitted similarly.

It's doing the trick. Thanks for the report.

Thank-you.

Can you provide a rough general location of where you heard this?

My own research and that of others hasn't found any publicly accessible authorizations for these emissions. What is known is @SpaceX is in the process of obtaining grants to use this spectrum. 🛑

A snapshot of the operational satellites in the Starlink DTC constellation. A maximum coverage band along the most populated latitudes of the northern hemisphere is clearly obvious. Data definitely shows widespread emissions over the Pacific Northwest. ⬇️

A full day of @SpaceX
Starlink V2 mini DTC satellites emitting on ~2010.5MHz. The video shows the raw curves then the fit of 649 spacecraft IDs (green) with nominal operational altitudes for this bus class. 🧵⬇️

Next steps will include tracking known Starlink V2-Mini DTC busses to get a sense of the emission levels with my calibrated dish antenna system and also a sense of the emissions they are using. 🛑

The Starlink V2-mini DTC bus has a slightly larger antenna. It's uncertain if the larger antenna contributes to it's increased brightness as noted from the internet only versions vs the DTC capable version. Per A. Mallama et. al. ⬇️
arxiv.org/pdf/2407.03092

Starlink Block v2-Mini-D2C Starlink is SpaceX's 30.000-satellite low earth orbit constellation to provide global broadband Internet access.

As usual @Skyrocket71
provides a nice summary of the Starlink Direct-to-Cell (DTC) launches using the V2-Mini DTC bus.⬇️
space.skyrocket.de/doc_sdat/sta...

The active satellites appear to be turning on as they rise in the west and then turning off as the set in the east. The strong pass of 58708 can be seen plotted below with it's Doppler for comparison. Perhaps indicative of testing with western North American ground station(s).⬇️

Here are three passes of Starlink 11079, the middle pass is the one that produced the very loud signals. This implies to me that the antenna onboard is directional as off nadir the signals are much weaker. I'm using a fairly omnidirectional antenna for this monitoring. ⬇️

Unlike the Starshield emissions, Starlink S-band emissions appear to be weaker. But at times there are huge signals like this pass of Starlink 11079 [58708, 2024-002D]. The dark vertical lines indicate the signal was strong enough to overload my preamp front end. 🧵⬇️

Starlink (NOT Starshield) has taken up residence on ~2010.5MHz. Continuous emissions over me.

@SpaceX is known to have purchased rights to this spectrum from Echostar. Anyone know if they are authorized to be emitting here yet or at all from space?

Sense the plot thicken?

US spy satellites built by SpaceX send signals in the “wrong direction” It seems US didn’t coordinate Starshield’s unusual spectrum use with other countries.

I'd like to thank Jon Brodkin at Ars Technica for his efforts to investigate and report on the Starshield emissions.

arstechnica.com/tech-policy/...

Yeap, one was active this morning :-)

Create Spacecraft CH3; CH3.DateFormat = UTCGregorian; CH3.Epoch = '21 Sep 2025 00:00:00.000'; CH3.CoordinateSystem = EarthMJ2000Eq; CH3.DisplayStateType = Keplerian; CH3.SMA = 262218.0079696243; CH3.ECC = 0.07748658771195915; CH3.INC = 34.61461920174589; CH3.RAAN = 358.9200612642715; CH3.AOP = 325.6737116968048; CH3.TA = 106.4094123318676;

There could be another lunar encounter in April of 2026 and after that things get really unstable. We're now in a very chaotic realm where CHANDRAYAAN 3 service module could end up in solar orbit or impacting the Moon or even Earth.

See alt text for state vector.🛑

The best I can tell there was no burn and this seems corroborated by @ISRO's statement below. The orbit wandered close enough to the Moon in early November 2025 that the Moon’s gravity took over. This wasn’t an intentional manoeuvre, it was natural 3-body drift.⬇️

HANDRAYAAN-3 was last reported by Space-Track.org on 2025-06-27. In September it became obvious from asteroid tracking data that the service module would encounter the Moon in early November twice. 🧵⬇️

CHANDRAYAAN-3 service module has been recovered.

She's located about 7 degrees south east of the Moon this morning.

Thanks to the some hawk eyed followers, CHANDRAYAAN 3 service module appears to be engaged in cis-lunar navigation activities and is in a new orbit.

isro.gov.in/Chandrayaan_...

Here's an Earth centred J2000 equatorial state vector for DRO-B:
2025-11-11T00:45:50.816
x= 213253.13473
y=-74960.25633
z=-77939.72821 km
vx=-0.034651
vy=0.84254
vz=1.05605 km/s
🛑

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. 🧵⬇️

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 ...

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...

Spooky Moon and natural cobwebs over the dish antennas...

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.

TIANWEN-2 is presently about 36 million km from Earth and out aheard of us and will rendezvous with asteroid 469219 Kamoʻoalewa in July of 2026. 🛑

TIANWEN-2 doesn't emit much on X-band. It's theorized that it is using solar electric propulsion (SEP) to some extent and not aiming at Earth all the time. I periodically check in on it and plot it's heard position since recovery in late August 2025. ⬇️

Earlier releases by CNSA indicated that the burn would happen on 2025-10-30. So it could have already occurred earlier today or will be conducted as TW-2 comes into view of China later today. ⬇️