GAIA at 300,000 km

From: William Keel (wckeel@comcast.net)
Date: Sat Dec 21 2013 - 22:28:27 UTC

  • Next message: Marco Langbroek: "Re: Updated KeyHole elements"

    I followed Gaia for about 30 minutes early today UT, using the 0.6m  
    remotely-operated SARA telescope at Cerro Tololo, Chile. It
    showed up within a couple of arcminutes of the prelaunch Paris Obs.  
    predictions for nearby La Serena. Most notably, it's become much
    fainter after the sunshade went into its nominal orientation (email  
    from a couple of team members in Heidelberg suggests that
    this was expected). Calibrating on Landolt standard stars, I got an R- 
    band (red) magnitude of 17.5 from 0121-0141 UT
    on 21 December (low in the sky before moonrise, from about 20-30  
    degrees elevation). One of the images was Tweeted in
    raw form at
    pic.twitter.com/RlIGOFHDm9
    
    Bill Keel
    --------------------------------------------------------------------------------------
    William C. Keel                                        205-348-1641  
    (office)
    Professor, Physics and Astronomy      205-348-5051 (fax)
    Box 870324                                              205-348-5050  
    (dept.)
    University of Alabama                             http://astronomy.ua.edu/keel
    Tuscaloosa, AL 35487-0324, U.S.A.    wkeel@bama.ua.edu
    --------------------------------------------------------------------------------------
    
    
    
    
    
    
    
    _______________________________________________
    Seesat-l mailing list
    http://mailman.satobs.org/mailman/listinfo/seesat-l
    



    This archive was generated by hypermail 2b29 : Sat Dec 21 2013 - 22:30:04 UTC