Photometric observations of the mutual phenomena of the Galilean satellites at the Pulkovo observatory in 2014-2015

TL;DR

This paper reports photometric observations of 72 mutual phenomena among Galilean satellites during 2014-2015, providing light curves and brightness measurements to improve understanding of satellite interactions.

Contribution

First comprehensive set of photometric data for Galilean satellite mutual phenomena observed at Pulkovo Observatory in 2014-2015.

Findings

Produced 51 high-quality light curves for 34 events.

Brightness RMS ranged from 0.02 to 0.19 mag, averaging 0.06 mag.

Enhanced data on satellite mutual phenomena for orbital analysis.

Abstract

We present the results of photometric observations of the mutual phenomena in the system of Galilean satellites obtained during 2014-2015. The observations were performed using the 26-inch refractor, Normal Astrograph, ZA-320 telescope of the Pulkovo Observatory (084) and MTM-500 telescope at Pulkovo mountain station at Kislovodsk (C20). We made observations a total of 72 phenomena. We had derived 51 light curves of good and medium quality for 34 events. The RMS of determining the brightness is within a range from 0.02 to 0.19 mag, the average RMS is 0.06 mag. This work was supported by RFBR grant (project 15-02-03025).