---++Investigation of
Run 405:
- What Run 405 is:
- At http://www.astro.uni-bonn.de/~bertoldi/aszca/index.html we find the command for Run 405: otf(xlen=120, xstep=0.01, ylen=2, ystep=1, time=0.005, direction='x', zigzag=1, unit='acsec', system='ho', epoch=2000.0) Which means that the telescope must travel 120 arcsec in the x-direction, by moving 0.01 arcsec every 0.005 seconds. We know from another column that the telescope does three scans. I'm guessing the y-direction steps up at every scan. Zigzag=1 means that data is taken bi-directionally.
- Does this make sense with the data?
- The velocity plot shows three sections, which coincides with the three half-scans the telescope is supposed to be taking. GOOD!
- 120 arcsecs, with a detector moving at 0.01arcsec/0.005 seconds is 60 seconds. Our velocity plot showed a half scan took 60 seconds. GOOD!
- The average velocity on our velocity plot is 0.001 deg/s. Multiply by 60 seconds = 0.06 deg = 216 arcsec. HMMMMM, SOMETHING WRONG. but it may b my calculation.
- Plots:
- The velocity is plotted in file ~ccohalan/plots/405-2006_velplot.ps . It shows three half-scans, each with a very small velocity.
- A plot of a few good bolos and the flags found by glitch_finder2 can be found at ~ccohalan/plots/405_full_flag_glitches.ps
- There are a lot of Run 405 plots in the directory ~ccohalan/plots.
--
ClaireCohalan - 02 Jun 2006
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Topic revision: r3 - 2006-06-06 - ClaireCohalan