Difference between revisions of "Mookodi time-stamp tests"
From SAAO TOPS Wiki
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| − | To verify the time-stamp accuracy of the DATE-OBS header keyword recored in the fits header for images captured by Mookodi we make use of the procedure as described [https://www.projectpluto.com/gps_expl.htm here]. | + | To verify the time-stamp accuracy of the DATE-OBS header keyword recored in the fits header for images captured by Mookodi we make use of the procedure suggested by Project Pluto as described [https://www.projectpluto.com/gps_expl.htm here]. |
== Method == | == Method == | ||
| + | The method entails observing a fast moving Global Navigation Satellite Systems (GNSS) satellite that have very accurately known sky-coordinates for a given time. By comparing the observed sky-coordinate of the satellite in your images (after doing astrometric calibration of your images) to the predicted sky-coordinate of the satellite at the respective header time (and knowing the sky-rate of the satellite) it is possible to determine how accurate the time stamping of your images are. | ||
== Results == | == Results == | ||
Revision as of 14:31, 14 April 2022
To verify the time-stamp accuracy of the DATE-OBS header keyword recored in the fits header for images captured by Mookodi we make use of the procedure suggested by Project Pluto as described here.
Method
The method entails observing a fast moving Global Navigation Satellite Systems (GNSS) satellite that have very accurately known sky-coordinates for a given time. By comparing the observed sky-coordinate of the satellite in your images (after doing astrometric calibration of your images) to the predicted sky-coordinate of the satellite at the respective header time (and knowing the sky-rate of the satellite) it is possible to determine how accurate the time stamping of your images are.
Results
- Spectral resolution:
- Dispersion: 3.88 Å/px
- Resolution:
