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
Monthly Archives: June 2013
Earth Scope Sensor at Mt. Lassen Volcanic National Park
Ran across something called “Earth Scope” on a recent visit to the Mt. Lassen Volcanic National Park. Some quick googling yielded: GPS geodesy provide complementary measurement systems for resolving strain-rate over the time period proposed for the Plate Boundary Observatory. … Continue reading
Annular Supermoon
Once a year we are treated to a moon that appears much larger than normal (especially at the horizon). This occurs when the moon is at perigee and is full. June 23, 2013 is this year’s event. Click on the … Continue reading
