Re: Orbital manouevres in the dark

From: satcom (john@satcom.freeserve.co.uk)
Date: Fri Nov 26 2004 - 09:29:21 EST

  • Next message: Greg Roberts: "Obs 24 Nov 2004"

    Hi Ted...
    
    Yes the course of W3 across the arc has been rather eventful...it was bound 
    for 48 from 7east...in fact I imaged it at 7 east alongside its replacement 
    back in May......but rather than stop at 48 east , where Eutelsat said it 
    was bound....it scooted on , way past its target , then had to be brought 
    back.
    
    Of the birds you mention 2F3 is as you say at 22 east...it should be at 21.5 
    east but is gradully drfiting eastwards (although heavilly inclined I am 
    looking at the signal from it right now ) If it carries on drfiting this way 
    it will move into the nearby Astra 3A deadband.
    
    Meanwhile , I can assure you that W3 " is"  at 21.5 east.
    To support this I managed to squeeze a statement out of Eutelsat 
    yesterday....
    
    Dear John
    
    Thanks for your email.
    We can confirm that W3 is operational at 21.5E as of today.
    
    Regards
    Mxxxx Gxxxxx
    Eutelsat Germany
    
    So I'm afraid OIG are lost in space with this one   ;O)
    
    
    John.
    
    
    
    ----- Original Message ----- 
    From: "Ted Molczan" <molczan@rogers.com>
    To: "SeeSat-L" <SeeSat-L@satobs.org>
    Sent: Friday, November 26, 2004 2:09 PM
    Subject: RE: Orbital manouevres in the dark
    
    
    > John and I have corresponded on this recently, but until this morning I 
    > had not
    > looked at the problem closely. Now having done so, I believe I can explain 
    > what
    > has happened.
    >
    > Eutelsat W3 (99018A / 25673) is indeed near 48 E. It began the year at 7 
    > E. In
    > early June, it began moving east, and arrived at about 53 E on Aug 20, 
    > whereupon
    > it reversed course until about Sep 18, when it arrived at its present 
    > location,
    > 47.7 E.
    >
    > As of yesterday, the three sats nearest 21.5 E were:
    >
    > 21803  1991-083A  Eutelsat II F-3  4.2  35772  35800   22.1 E
    > 26863  2001-029A  Artemis          3.2  35775  35800   21.5 E
    > 25515  1998-063A  Afristar         0.0  35773  35802   21.1 E
    >
    > My guess is that the carrier tests heard by John came from one of these 
    > three.
    >
    > Ted Molczan
    >
    >
    >
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