2 days ago
Aqua on X-Band. Pretty crappy pass, but salvaged this crop of Mt. Hood, Hood River and population centers of Eugene, Corvallis, Salem and Portland. https://t.co/Pb97bHVXR5
3 days ago
5+ hours condensed to 1min of Tianwen-1 activity starting just after 1st orbital maneuver. https://t.co/1wRWZq6Iap
4 days ago
Tianwen-1 is approaching apoapsis. The plot shows the ground station handover from Kashi to Zapala/Argentina at 17:08. The Doppler profile results mostly from Earth rotation Doppler in the uplink signal. The spacecraft's orbital Doppler alone is rising steadily now. https://t.co/sLeYvClDpG
Tag Archives: Space
ISEE-3 Frequency Drift Measured
Based on the latest Horizons update by JPL (based on Arecibo observations) I have measured the frequency drift of the spacecraft TX frequency (transponder A RHCP). It appears to be drifting upward at a rate of 3.3 Hz per hour. … Continue reading
Posted in Spacecraft
Tagged S-Band, Space
JPL Updates ISEE3 Horizon Data
Updated my Horizons data for ISEE-3 today and found this nice note: UPDATE (2014-Jun-23): Trajectory updated to JPL solution #32 (s32), based on 42 coarse Arecibo plane-of-sky angular measurements spanning May 22 – Jun 23 … Upon updating things and … Continue reading
Posted in Spacecraft
Tagged S-Band, Space
ISEE-3 Signal Getting Stronger
Each day the signal from the old but reliable ISEE-3 spacecraft gets stronger and stronger. I have updated the tracking software to log the signal strength over time. It’s also very easy to see the signal without averaging as shown … Continue reading
Posted in Spacecraft
Tagged S-Band, Space
ISEE-3 (ICE) Spacecraft Detected
ISEE-3 (ICE) Spacecraft was detected today using a 1.2m dish at 2270.390831 MHz. The signal at this frequency was also simultaneously detected and confirmed by Paul over at UHF-Satcom. The detection was accomplished by integrating multiple FFTs with the spacecraft … Continue reading
Posted in Spacecraft
Tagged S-Band, Space
Comet ISON
Comet ISON is getting closer. Here is an image I grabbed in the early morning hours before sunrise. This image was taken October 18th at the KESA Observatory in Colfax CA. I am in the process of imaging ISON again … Continue reading
Lunar Reconnaissance Orbiter
Here is a quick look at the Lunar Reconnaissance Orbiter (LRO) signal. Even though NASA is shutdown as part the US government shutdown, there is still a good signal coming from the LRO. I was doing a quick 1.2m dish … Continue reading
Posted in Spacecraft
Tagged Moon, S-Band, Space
Shuttle Endeavour Ferry Flight
The shuttle Endeavour made a historic ferry flight to Northern California today. Endeavour performed low level flyovers in the Bay Area and Sacramento before making it’s way to it’s final destination in Los Angeles. After the low pass over the … Continue reading
Posted in Spacecraft
Tagged Shuttle, Space
