Re: ISS pictures

From: Anthony Ayiomamitis (anthony@perseus.gr)
Date: Thu May 24 2001 - 17:03:06 PDT

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    > Hi,
    > We've been enjoying some warm weather and clear sky in the UK for the last
    > day or so. This has come at just the right time for a series of early
    > morning ISS passes. The first of these was 04:00 UTC 24th May and we
    > obtained our best images yet. No time to do much image processing yet but
    > the raw pictures are at
    >
    > http://www.btinternet.com/~mikejtyrrell/iss.htm  and
    >
    > http://freespace.virgin.net/philip.masding/
    
    Mike/Phil,
    
          Weather here in Greece has been cloudy the past ten days and it has proven to
    be quite an unproductive period. I am glad to see that someone else has managed to
    be more productive. As for the ISS, excellent pictures! Can you provide some details
    as to exposure etc?
    
    > The station displayed distinctly different attitudes during the pass. We are
    > setting up for another attempt in a few hours time subject to the weather
    > and ability to go to work with virtually no sleep!
    
          I have also pulled "all-nighters" and can attest to your enthusiasm. I am up
    now (3:00 AM) hoping that there is a break in the clouds for a photo of Iridium 43
    scheduled to flare at 4:54 ... not that I expect a break in the clouds but just in
    case.
    
    > As a sideline have also observed the following Iridium flares (as predicted
    > by HA) - hope to have 35mm pictures of some of these in due course
    
         What is your experience with the predicted flare times? I have noted during the
    past three weeks or so for flares to be starting 8 to 15 seconds earlier than
    predicted?! Have you noticed anything similar? As an aside, I ping to the Atomic
    Clock minutes prior to the predicted flare and, therefore, I am certain that it is
    not a miscalibration issue on my end!
    
    Anthony.
    
    > 22nd May 21:58 UTC Iridium 20 Mag -7
    > 22nd May 22:03 UTC Iridium 3  Mag -1
    > 23rd May 22:06 UTC Iridium 25 Mag -2
    > 24th May 22:00 UTC Iridium 47 Mag -4
    >
    > This last one was given as 26deg Alt by HA but seemed to be more like 35-40
    > deg (the camera missed it as a result!)
    >
    > Mike Tyrrell & Philip Masding
    > Manchester, UK
    > 53.275N  2.547W
    >
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