[ATMoB-discuss] ISS/Atlantis

[Paul A. Valleli]

Bruce,

The first thing would be to up load the orbital
elements for the ISS. These are relatively stable
compared to the Shuttle - we saw that with the
change in plans to put it behind rather than ahead
of the station.  Next, would be to try some runs
with an eyepiece to test the tracking accuracy.
Heavens Above times are pretty accurate for twilight
passages, but there is no reason not to try daylight
passages with a 25A red filter ( to darken the blue
sky). Later, some work could be done in the Near IR
using a Scott IR900 bandpass. The weight of a webcam
such as John uses would be the same or less than an
eyepiece.

Paul  
---- Original message ----

  Date: Sat, 30 Jun 2007 06:57:10 -0400
  From: "Bruce Berger" <bruce at scopemaker.com>
  Subject: RE: [ATMoB-discuss] ISS/Atlantis
  To: "'Paul A. Valleli'" <valleli at rcn.com>, "'John
  Boudreau'" <jeboud at comcast.net>,
  <atmob-discuss at atmob.org>, <stmlist at yahoo.com>,
  "'Paul Valleli'" <pvalleli at axsys.com>

  >Paul et, al;
  >
  >We can slew at 1.5 degrees/second. Maybe someone
  'in the know' can help me
  >get the tracking process in place for next time.
  >
  >Bruce
  >
  >-----Original Message-----
  >From: atmob-discuss-bounces at atmob.org
  >[mailto:atmob-discuss-bounces at atmob.org] On
  Behalf Of Paul A. Valleli
  >Sent: Thursday, June 28, 2007 10:01 PM
  >To: John Boudreau; atmob-discuss at atmob.org;
  stmlist at yahoo.com; Paul Valleli
  >Subject: Re: [ATMoB-discuss] ISS/Atlantis
  >
  >John,All
  >
  >I don't think the GT1100 is powerful enough to
  move the C14 fast enough and
  >stay on course - I measured
  >15 degees in 10 seconds last week, using Al
  Takeda's and Mike Schexnaydre's
  >images which show the Dipper in the FOV . That's
  1.5 deg. per sec. It would
  >have been faster than that when overhead.
  >
  >If Bruce Berger can get the motor/controller
  upgrades installed from SBIG,
  >It should do it.
  >
  >Paul
  >
  >
  >
  >---- Original message ----
  >
  > Date: Thu, 28 Jun 2007 18:43:22 -0400
  > From: "John Boudreau" <jeboud at comcast.net>
  > Subject: Re: [ATMoB-discuss] ISS/Atlantis
  > To: <atmob-discuss at atmob.org>,
  > <stmlist at yahoo.com>, "Paul Valleli"
  > <pvalleli at axsys.com>
  >
  > >I'm not sure if our club's GT1100 mount can do
  > it, but I know Software Bisque's 'The Sky 6' can
  > be used to make a Paramount ME track satellites
  > pretty accurately. It certainly would be
  something
  > to look into. If the GT1100 can do it, the club
  > may already have most of the equipment to image
  > the ISS with surprising results.
  > >
  > >You may remember my hand tracked webcam ISS
  shots
  > from last week, with a TEC140 refractor working
  at
  > f/7:
  > >http://home.comcast.net/~jeboud/satellites.htm
  > >
  > >Well, here's a couple of shots also taken with
  a
  > TEC140 by Domenik Wos in Poland--- but at 4x the
  > effective focal length, a more sensitive video
  > camera, and auto-tracked on the ISS with an AP
  > 1200 GTO:
  >
  >http://www.astrophotography.pl/solsys/iss/07.06.16/07.06.16.html
  > >Atlantis is visible at the RH end of the ISS in
  > both shots.
  > >
  > >Remember, that's still only a 5.5" refractor
  > resolving it that well. Think what the C14 could
  > do!
  > >
  > >---John
  > >
  > >----- Original Message -----
  > >From: "Paul Valleli" <pvalleli at axsys.com>
  > >To: <atmob-discuss at atmob.org>;
  > <stmlist at yahoo.com>
  > >Sent: Thursday, June 28, 2007 2:13 PM
  > >Subject: [ATMoB-discuss] ISS/Atlantis
  > >
  > >
  > >> There is an amazing and incredibly sharp
  > picture of the ISS and
  > >> Atlantis STS-117 taken by Ron Dantowitz and
  > Marek Kozubal with the
  > >> 25-inch scope at Clay Center.
  > >> Go to APOD -astronomy picture of the day for
  > today June28.
  > >>
  > >>
  http://antwrp.gsfc.nasa.gov/apod/astropix.html
  > >>
  > >>
  > >> Paul
  > >>
  > >>
  > >>
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  > >
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