Ceres High Altitude Mapping Orbit (HAMO), Late summer through fall 2015 |
Ceres High Altitude Mapping Orbit (HAMO), Late summer through fall 2015 |
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Member ![]() ![]() ![]() Group: Members Posts: 541 Joined: 17-November 05 From: Oklahoma Member No.: 557 ![]() |
DAWN arrived in its new lower mapping orbit on August 13th. The DAWN team is preparing to resume science observation tomorrow on the 17th.
From the Current Mission Status page at the DAWN website: QUOTE August 13, 2015 - Dawn Arrives in Third Mapping Orbit
Dawn completed the maneuvering to reach its third mapping orbit and stopped ion-thrusting this afternoon. This was a little ahead of schedule because the spiral descent went so well that some of the allocated thrusting time was not needed. Since July 14, the spacecraft has reduced its orbital altitude from 2,700 miles (4,400 kilometers) to approximately 915 miles (1,470 kilometers). The orbit period has correspondingly decreased from 3.1 days to 19 hours. Dawn is scheduled to begin its new observations on the evening of Aug. 17 (PDT) and continue for more than two months. First, however, the mission control team will measure the actual orbit parameters accurately and transmit them to the spacecraft. |
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![]() Member ![]() ![]() ![]() Group: Members Posts: 423 Joined: 13-November 14 From: Norway Member No.: 7310 ![]() |
By the way, I just realised that Gaue crater is similar in size (84 km) to Occator (90 km), so to get an idea of what Occator will look like to us shortly, take a look at the image of Gaue.
As far as I can see, we've also been promised a fresh HAMO image later today. -------------------- |
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![]() Member ![]() ![]() ![]() Group: Members Posts: 244 Joined: 2-March 15 Member No.: 7408 ![]() |
By the way, I just realised that Gaue crater is similar in size (84 km) to Occator (90 km), so to get an idea of what Occator will look like to us shortly, take a look at the image of Gaue. I'm looking forward to our first look at Occator from HAMO. In July, I put together this preview of what we can expect in terms of Occator size at HAMO and LAMO in Framing Camera imagery. Note: That image is 1/4 actual resolution (each frame is shown at 256x256 instead of 1024x1024) LAMO is going to be mind-blowing; the area of the spots will fill the entire frame. ![]() In case it isn't obvious, the top row contains images from the second mapping orbit; the middle row contains simulated views from HAMO; the bottom row contains simulated views from LAMO. Edit: Updated the image, adding the most recently published survey orbit image of Occator (as long as I'm reposting, I might as well update/improve it). |
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