Printable Version of Topic

Click here to view this topic in its original format

Unmanned Spaceflight.com _ Spirit _ New Transit Season

Posted by: djellison Jan 15 2007, 05:21 PM

The FOURTH transit season would you believe.

They slightly missed the first - but it managed to be caught with secondary reflections. Attached, an Anim gif from Jim Bell (thanks Jim!). Even though only caught with reflection - still good enough to do astrometry!

Jim says there's possibly one more from Spirit this week, similar events for Opportunity in Feb - just Phobos this time around, not Deimos transits to be had.

Doug

Posted by: Tesheiner Jan 18 2007, 10:54 AM

QUOTE (djellison @ Jan 15 2007, 06:21 PM)

Jim says there's possibly one more from Spirit this week

Found these seqs on the plan for sol 1083:

01083::p2673::06::2::0::0::2::0::4::pancam_pre_phobos_transit_L7R7
01083::p2749::05::24::22::0::2::2::50::pancam_phobos_transit_L7R7

L7 filter? Looks like the goal is to see variations in the illumination and not to directly observe Phobos. They would use L8 in the latter case.

Posted by: djellison Jan 18 2007, 10:59 AM

Unless it's very late in the day? 22 subframes wouldn't really be condusive to observing the surrounding terrain.

Doug

Posted by: jamescanvin Jan 18 2007, 08:38 PM

And they would probably use the clear L1 filter for watching the illumination change during transit, L7 (and R7 ) would be a strange choice. Could even be a typo.