Report On Getting Usable Observations With Inexpensive Equipment

From: Charles Phillips via Seesat-l <seesat-l_at_satobs.org>
Date: Fri, 20 Dec 2019 16:23:07 -0700 (MST)
All -

This is an update on efforts to track satellites with inexpensive equipment - this can be done with only a small investment in
hardware. So far I have sent in six observations and have refined techniques quite a bit, learning that even quality cameras are
mass produced. It has proven to be difficult to get accurate timing with the DSLR that I have but there are several
improvements that I am going to use - I figured out (with help from a Digital Photography forum) how to set the time
in my camera from my computer. Manually setting the time with my older reflexes is not the best way to do it.

Marco suggested calibrating the camera and I am looking at doing that - having a camera shop here calibrate the shutter
and electronics. The exposure time can be set in the camera controls but that appears to not be as accurate as I need. 

On all six observations - each is taken from one end of the streak in the image. The start observation appears to be of
better quality than the end observation and I think that my inaccurate timing is most of the error. 

One action I am going to take soon is to buy a new battery for the camera - the one I have is older and does not hold a
charge, especially when you are standing in a dark field in the cold. 

I am looking at getting a better camera and lens now that I know that this can be done in my area. 

Thanks to Chris Lewicki for helping me in this effort. 


Charles Phillips
Spaceflight Research, LLC
Houston, Texas
713-882-4578
sites.google.com/site/spaceflightresearchprojects/
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Received on Fri Dec 20 2019 - 17:23:56 UTC

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