Using the TLE I posted earlier from @Marco_Langbroek #Starliner perigee would have been ~88km. Very low? It’s just approaching NA now minutes until be may bee further amateur reports. Image
I suggest observers try both frequencies. 2203.2 and 2287.5.
@scott23192 is an amateur observer with suitable equipment that is under the flight path. Good luck Scott!

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More from @coastal8049

Nov 13
The R/B of the Yunhai 1-03 mission appears to have suffered a breakup event. The plane of the orbit is nicely visible in the evening in the Northern hemisphere. Observers could look for debris by observing along the R/B plane and looking early.
OBJECT B [54236, 2022-151B] 🧵
The irony is the satellite Yunhai 1-03 is replacing was itself hit by another satellite. Goes to show you that space junk at these orbital altitudes is not a good thing.…
Look as soon as possible if you plan too before it disperses too much.
Read 4 tweets
Sep 10

#CAPSTONE appears to be garnering the DSN's attention over the last day or so. Continuous uplinks with no downlink like the anomaly observed after the spacecraft was released post TLI.

She was scheduled for TCM-3 in early September based on statements after TCM-2.
I'm presently tracking #CAPSTONE on X-band and noting no emissions from it over the last few hours.
DSN NOW just updated and most of Goldstone's DSS antennas are now tasked with #CAPSTONE. Even DSS 14.
Read 27 tweets
Aug 27
#ARTEMIS1 observational planning 🧵

Overall visibility of the spacecraft from my ground station location. Elevation above the horizon will be a key factor. As you can see during the early and late stages of the mission Artemis will be low in my sky.

Next lets consider the range to #ARTEMIS1 so a model of the expected signal level can be obtained using Free Space Path Loss (FSPL) assumptions. Data is only plotted when Artemis is above my horizon.
The following are estimates of the SNR of #ARTEMIS1's signal in my 1.8m dish using an Equivalent Noise Bandwidth (ENBW) of ~2Hz for my usual SDR setup during the course of the mission. Assumed spacecraft High Gain Antenna (HGA) and the known sensitivity of my system used here.
Read 5 tweets
Mar 19
MERIDIAN 9 on it's Eurasian apogee.

As you can see here there's legit Russian military traffic here.

Aircraft spotters I make a call for you to pay attention to this 🧵.
MERIDIAN 9, 990MHz transponder narrow data. This type of traffic has been observed for decades on the Molniya-T1 spacecraft too. It is thought to be part of the Russian Strategic Rocket Force's communication system.
A call for #OSINT air traffic gurus to see if any Russian aircraft with strange humps on their back are orbiting somewhere over Russia right now. Like RSD79 in this post.
Read 7 tweets
Mar 18
MERIDIAN 8 RADAR re-emissions seen this morning.

Using the AM demodulator to examine the pulse dynamics of each RADAR.
Here's another recording revealing a 4th radar with a much different higher pitched pulse pattern. It comes and goes so listen to the entire track.
A dramatic change in RADAR emissions and new low frequency pulse...
Read 4 tweets
Mar 17
My wife says this blown to bits Russian EW warfare equipment looks like our backyard. Not sure why they need 2.4GHz grid but we've seen other off the self comms equipment blown up too.
If you look carefully at the second image there are two feeds, so they had two complete WiFi antennas. Most likely for some local link they planned to establish. I wonder if they use secure or open WiFi networks?
Maybe they want to capture weather satellite images? 😉
Read 4 tweets

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