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Plots for trends in metadata for occulter radius and plate scale #288
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We discussed this plot and changes happen when the observers change occulter. This point to an error in the measured occulter radius in the lab. The plan is to bring back the occult's and have them measured again with high accuracy. We should measure the diameter at different position angle, i.e. 0, 45,90,135deg, to verify that they are round but all the data we have from CoMP and UCoMP point to the ocular being nearly perfectly round. It seems the problem is that we do not know the diameter accurately enough. |
It would be useful to do the following:
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Thank you Mike! For average radius I meant the average of camera 0 and camera 1 that we use for the plate scale, but what you plotted is perfectly fine. Can you please make additional plots where you change the scale so we can see better how stable it is? let's try 330 to 360. |
When looking at the difference between the two cameras, is larger early on. RCAM is systematically smaller at all wavelength. I found some notes from Steve saying this difference could be a focus problem. |
Make a plot of
IMAGESCL
over the mission to test the nominal plate scale. Compute median, mean, and sigma.Make a plot of
RSTWVL
over the mission and consider how to fit data with a spline. It may require adjustment for the wavelength shift when the filter was retuned to put data on the same scale. Joan and I notice that RSTWVL seems to become smaller on cloudy days or late in the day when clouds gets in and would like to correct for that.Tasks
IMAGESCL
plot by occulter ID inucomp_mission_image_scale_plot.pro
IMAGESCL
plot with columns date/time, image scale, plate scale, occulter IDThe text was updated successfully, but these errors were encountered: