Re: UNID

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Sun May 23 2004 - 03:53:02 EDT

  • Next message: Ed Cannon: "Re: New online article about spotting Iridium flares"

    Regarding IGS 1B:
    
    >could it have flared to this extent ?.....Calsky puts it as 
    >mag 3-4 !
    
    A while back Mike McCants and I saw it at about +2 magnitude
    at a range of 1300 km:
    
    http://satobs.org/seesat/Jun-2003/0031.html
    
    and I'm pretty sure that I've seen it flare on other occasions.
    This page says it's a synthetic aperture radar payload:
    
    http://www.spaceandtech.com/spacedata/logs/2003/2003-009a_igs1b_sum.shtml
    
    However, on the other hand, FAS hint if not says that it 
    may be very similar to Ikonos 1, which is a visual imaging 
    payload:
    
    http://www.fas.org/spp/guide/japan/military/imint/
    
    This page (with a huge URL) has images of Ikonos 1:
    
    http://lmms.external.lmco.com/photos/commercial_space/comm_remote_sensing_ik
    onos/comm_remote_sensing_ikonos.html
    
    That's the Ikonos link on this page:
    
    http://lmms.external.lmco.com/photos/commercial_space/index.html
    
    Maybe both Space and Tech and FAS can both be correct?
    
    I read that IGS 1B has a four-day repeat track cycle.
    
    Mike and I observed for a while Saturday PM at BCRC but were 
    shut down early by our seasonal low clouds.
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
    http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Sun May 23 2004 - 03:59:02 EDT