Helios 1B flashing

From: Ted Molczan (seesat@rogers.com)
Date: Tue Jul 19 2005 - 04:39:11 EDT

  • Next message: Russell Eberst: "2005JUL18.OBS"

    Last month, Ed Light reported 'bright "flashing/flaring"' of Helios 1B (99064A /
    25977):
    
    http://satobs.org/seesat/Jun-2005/0050.html
    
    This morning, I happened to spot it as unknown in between clouds. It culminated
    on 2005 Jul 19 at 07:56:46 UTC, elevation 53 deg, azimuth 288 deg,
    
    It was faint at minima, but its maxima were more like flares, to about mag zero.
    I estimate that its flash period was between 10 and 20 s.
    
    Helios 1B was manoeuvred from its operational sun-synchronous altitude to its
    present 600+ km graveyard orbit in the fall of 2004, after its on-board
    batteries failed.
    
    Ted Molczan
    
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
    http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Tue Jul 19 2005 - 04:52:08 EDT