Day #23

This week I've just been processing all of the data I have amassed. I got some really great pictures of 2008 BT18. My first set of these had an exposure length of 40 seconds so they looked like dashes on the frame. I then got some more with an exposure length of only 2.5 seconds. I took all these from the same telescope position. They make a great movie showing the spherical asteroid travel across space over eleven pictures. Overall, my spreadsheets have turned out well. Most of my data seems to be within the uncertainty bounds given by HORIZONS. In several cases though, my data seems to be consistently about half an arcsecond greater than HORIZONS. I'm not sure the cause of this discrepancy. It could possibly be the altitude of PROMPT.