The minimum shutter speed for the SBIG ST-7XME is 0.11 second. I don't
know what the limiting magnitude of that shutter speed. I know that a full
frame transfer requires 1 second. I know that the transfer speed can be
improved by only transferring small portions of the frame.
CCDSoft can process the data in two methods. First, on a stationary
object, such as a star, it will create a light curve. Second, on a moving
object, such as an asteroid, it will create a path.
I can understand you not wanting to spend money you don't need to.
Tandy W. Carter Jr.
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----- Original Message -----
From: "Charles Broward" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, January 23, 2007 2:01 PM
Subject: Re: Up-Coming Occultation
> The occultation events need to be recorded with at least a 1/10 sec
> resolution...I know my Neximage will do 30 frames a second....I will try
> and see if it will detect something on the order of a mag 4 star....I know
> that CCD imagers will integrate to mag 13, but for occultation timing it
> would have to integrate at 1/10 sec speeds....can they do that, can the
> software do that? And will
> software let you do image processing and record time?
> Interesting issues....the IOTA scheme lets you record 30 frames a second
> with a time hack on the tape or disk or whatever...a simple solution if
> you are willing to buy the camera (super sensitive) and a recorder....I
> just don't want to spend a $160 for a camera I might use once.
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