Photometric analysis of the 2UCAC 43610749 occultation by (127)Johanna.
Feb. 20, 2011
Kazuhisa Miyashita
Correction for light absorption by thin clouds.
Kenmotsu, Soja, Okayama (with 32 frames integration)
Following light curves are observer's own analysis. Kenmotsu-san sent me them to confirm that the light drop is derived from occultation or not.
In the raw light curve, there is rather large light absorption by thin clouds just during this occultation.
To solve this issue, Limovie's new function for correcting cloud's absorption had been applied.
As a result, absorption is corrected and light drop appeared obviously.
Comparison star : 11.83 mag.
Blue : target star; Yellow : comparison star
Comparison star : 10.63 mag.
Comparison star : 12.45 mag.
