RE: ISS and STS

From: Dale Ireland (direland@drdale.com)
Date: Wed Dec 12 2001 - 17:35:01 EST

  • Next message: George Amos: "ISS/Endeavour 12th dec"

    Phillip, you must be in England, right. Another fellow just posted this
    observation of that trail on the HearSat list
    I quote it here
    Dale
    
    1810z. It's a cold clear night here in the north of England, I've just
    watched
    the ISS going nearly straight overhead. When I saw it coming up on the
    western
    horizon I thought I'd picked up an aircraft banking  - there looked to be a
    condensation trail behind it. But no, it was the ISS and there was a
    stunning
    trail of gas streaming out behind it to the West, looping sharply to the
    South
    in a U shape.
    
    I could see this with the naked eye, easily with binoculars. As it came up
    overhead I could distinguish two distinct trails, looking for all the world
    like
    aircraft con trails lit by moonlight, three or four degrees across. It put
    me in
    mind of the Apollo 13 movie, but unhurried Russian RT came up on 143.625 as
    usual.
    
    Did anyone else see this ?
    
    Chris Cadogan   G3XWB
    
    -----Original Message-----
    From: Philip Masding [mailto:philip.masding@virgin.net]
    Sent: Wednesday, December 12, 2001 1:27 PM
    To: SeeSat
    Subject: ISS and STS
    
    
    Hi everyone,
    Tonight Mike and succesfully videoed the STS and ISS as they passed over at
    about 1805UTC. As it came over the horizon I saw an approximately 1.5 degree
    vapour trail behind the two of them. This was through the LX200 10x50 finder
    which we use to initially acquire the ISS. The trail made the ISS look like
    a sort of comet. I was convinced we would never get an image of the STS
    because of the weather ( see below ) but with 2 minutes to go and the sky
    still clear I had to admit cloud was unlikely. Still the STS remained
    elusive since the angle of the Shuttle made it almost invisible. The ISS was
    clearly in a special flight mode for the reboost since my simulator
    predicted XVV and it was definitely not that. We will be processing our
    images over the weekend and hope to post them next week.
    
    We have had a bit of good luck with the weather in the last few days with
    the UK having cold, frosty, clear nights. So we have seen passes on the 9th,
    10th and 12th. On the 11th fog intervened. Today the forecast was cloud
    moving up from the south and I looked at some BBC webcams which indeed
    showed it arriving in London at 0900 and then Oxford by 1000, extrapolating
    meant we stood no chance of still having clear skies by 1800 but later on
    the cloud slowed down and we made it.
    
    Phil
    
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