Re: ISS Solar Transit

From: Kevin Fetter via Seesat-l <>
Date: Wed, 28 May 2014 02:37:49 -0700 (PDT)
Looking up the info on the pass, it happened around 5:50:43 utc.

At the time, the sun was very high in the sky, so when the iss passed across the sun, it was travelling at a good speed across the solar disc. So when you when to take the exposure, the iss had moved a good distance away from the centre of the solar disk. You would need to capture at very short exposure times, and get a few images during the transit,  to hope to catch the iss at the centre of the solar disc. 

They say the camera you have, can capture up to 6 frames per second, so set the camera to do that.


On Wed, 5/28/14, Debasis Sarkar via Seesat-l <> wrote:

 Subject: ISS Solar Transit
 Received: Wednesday, May 28, 2014, 2:34 AM
 Hi Friends,
 I am new in this list and thanks for allowing me to be
 I am sharing a picture of ISS transit that I have taken on
 17th May 2014
 from a location lat=26.101400 & lon=87.984298.
 The optics was Celestron SCT 8" with Nikon D7000 at Prime
 I have taken a Video too with Sky Watchers 120mm f/8
 reflector fitted with
 a HD Video cam.
 Interestingly, despite being on centerline (Plus Minus 200
 meters), I did
 not get ISS to run through the center of solar disc.
 Instead, I had it pass
 through a distance of at least 1/4 solar radii from the
 center of Sun.
 Width of visibility path was 6km. I was following Calsky fro
 prediction. Could you please enlighten me on what might have
 gone wrong?
 Thanks and regards-
 Debasis Sarkar
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Received on Wed May 28 2014 - 04:38:45 UTC

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