Mercury Flyby 2 |
Mercury Flyby 2 |
Feb 8 2008, 10:50 PM
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Member Group: Members Posts: 544 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
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Sep 8 2008, 12:44 PM
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#2
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Member Group: Members Posts: 340 Joined: 11-April 08 From: Sydney, Australia Member No.: 4093 |
With the second flyby now just a month away, I have started to dig for events etc for my realtime simulation, and as always I am getting different times for the same events. I guess the closest approach time has not been inked in, but I thought I'd share my initial results anyway.
All times are Spacecraft Event Times in UTC: Mercury closest approach (altitude 200km) on 6 Oct 2008 between 08:40 and 08:42 Horizons currently has closest approach at 06 Oct 2008 08:41:25, resulting in: Entry into Mercury Hillsphere: 05 Oct 2008 20:33:55 Exit from Mercury Hillsphere: 06 Oct 2008 20:48:40 Again according to the Horizons information, the flyby changes the orbital elements as follows: Periapsis: from 47.5 million km to 45.8 million km Apoapsis: from 102.3 million km to 93.8 million km Eccentricity: from 0.36 to 0.34 Inclination: from 6.94 deg to 7.03 deg If anybody has more precise - or updated - information, please share, I will gladly put it on the realtime simulation -------------------- |
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