R: Observing the Iridium Flares from the ISS - 3D Simulations and Predictions

From: satrack@libero.it
Date: Fri Jan 14 2011 - 10:06:52 UTC

  • Next message: satrack@libero.it: "R: Re: Observing the Iridium Flares from the ISS - 3D Simulations and Predictions"

    Robert and Robert, 
    
    many thanks for your replies and link. I have simulated the flares of the day 
    of that photo, which should be 21 March 2003, and
    I found the following flares with negative magnitude:
    
    Satellite	Date (UTC)	Mag.
    IRIDIUM 66	04.02.01	-7.8	
    IRIDIUM 64	07.02.52   	-1.3	
    IRIDIUM 63	08.34.16	-3.2	
    IRIDIUM 62	10.05.42	-2.8	
    IRIDIUM 70	11.37.09	-2.5	
    IRIDIUM 67	20.53.43	-5.0	
    IRIDIUM 66	22.25.08	-2.2	
    IRIDIUM 65	23.56.35	-4.6
    
    are there more details about the time of the photo anywhere?
    
    Regards,
    Simone
    
    >----Messaggio originale----
    >Da: reeves10@satx.rr.com
    >Data: 13-gen-2011 19.48
    >A: <seesat-l@satobs.org>
    >Ogg: Observing the Iridium Flares from the ISS - 3D Simulations and	
    Predictions
    >
    >
    >Yes, it is possible to observe and photograph Iridium flares from the ISS.  
    In fact it was done 8 years ago during Expedition 6.  Rob Matson, creator of 
    the Skymap program, came up with a version that corelated the Iridium 
    reflection beams with the path of the ISS.  Back then I was in email contact 
    with Expedition 6 Science Officer Don Pettit.  Rob asked me to see if Don would 
    be interested in trying to see the flares.  Well, Don Pettit has all the 
    curiosity of a bright-eyed child in a toy store and he bit into that project 
    with a vengence.  Rob would send me the predictions along with a graphic 
    showing the expected location and I would email them up to the station.  It 
    took a few tries and a little tweaking of the program, but after a while Don 
    was seeing flares as predicted and bagged some of them with the Kodak digital 
    camera they used on the station.  One image even showed dual flares.  After Don 
    left the station, subsequent residents never expressed any interest in cont!
    > inuing looking for Iridium flares, so we stopped sending the predictions.  
    Pettit did the flare observations more as a "hobby" activity, and i was 
    dissapointed when no mention was made of them in the book "Too Far From home" 
    that related the activities of Expedition 6 whern Columbia was lost.
    >
    >Robert Reeves
    >
    >
    >
    >
    >Looking at the nice photographs recently taken from the ISS of Earth and sky,
    >I started wondering if also the Iridium Flares could be potentially 
    >photographed from the International Space Station.
    >
    >By adjusting my program I performed some 3D simulations and generated several
    >predictions. I have uploaded the results of my analysis along with a few 
    >pictures and a 3D stereo video of simulated Iridium flares on the following 
    >page:
    >
    >http://digilander.libero.it/SATrack/Iridium_Flares_As_Seen_From_The_ISS.html
    >
    >It would be nice to see also a real photograph!
    >
    >Best Regards,
    >Simone
    >
    >
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