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View Full Version here: : Tiangong-1 passes over Saturn, Brisbane, 21st June


von Tom
16-06-2013, 08:31 PM
This Friday evening at 18:08, Tiangong-1 with the docked Shezhou-10 spacecraft will pass over Saturn, from Brisbane. it will be about 5 arcseconds in size. Here is the link to the centreline.

http://www.calsky.com/?Transitline=&obs=81134432212366&tdt=2456464.83987632&sat=37820&interval=0.00011574&step=0.00000231&mainbody=6

Crosses the disk of Saturn. Separation=0.000°. Transit duration=0.00s
Angular diameter=5.6" cylindrical, 10.3m x 3.3m
Satellite at Azimuth= 63.8° ENE Altitude= 58.3° Distance=395.8 km Magnitude=-0.0mag
In a clock-face concept, the satellite will seem to move toward 3:46
Angular Velocity=62.3'/s

You are on the centerline (http://www.calsky.com/?Transitline=&showhome=&obs=81134432212366&tdt=2456464.83987716&sat=37820&interval=0.00011574&step=0.00000231&mainbody=6) of this transit! Path direction=127.3° SE ground speed=7.407 km/s width=0.0 km
Sun elevation=-15° Elongation from Sun=125°
Calculated based on observations on 16. Jun 2013 10:16 UTC+10.

Check Calsky as close as possible before the pass to get an updated centreline.

Matt Wastell
16-06-2013, 08:55 PM
Thanks Tom - may take a pic or two myself!

von Tom
16-06-2013, 09:45 PM
It also may go over Antares

astronobob
17-06-2013, 05:50 PM
Interesting , Re; transit time = 0.00secs, I assume this would mean the transit will be less the 1/100th of a second ? sounds sleazable, though that will be tricky with dlsr at 30fps, or even a DBK at 60fps, ? ? One in 3 chances or 2 chances respectively in jagging it ?
Hope Im wrong tho, as the ISS would take up a approx 1/4 of Saturn, Wow, that would be a sight

von Tom
19-06-2013, 07:26 PM
Weather forecast not looking good for Friday

von Tom
19-06-2013, 07:33 PM
This is a thread for a pass by Venus almost exactly a year ago:
http://www.iceinspace.com.au/forum/showthread.php?t=92506