Method and apparatus for estimating aging of satellite battery

An apparatus for estimating an aging amount of a battery mounted on a satellite that performs a satellite mission, the apparatus comprising:

• a processor;
• and
• a memory,
• wherein the processor is configured to
• receive battery voltage and current data generated by detecting a voltage and current of the battery in a preset first sensing period during a precise sensing period from the satellite and store the battery and current data in the memory,
• determine a mission start time point when the satellite begins to perform the satellite mission based on the battery current data,
• obtain a first battery voltage value of a first time point immediately before the satellite performs the satellite mission based on the battery voltage data and the mission start time point,
• obtain a second battery voltage of a second time point when a preset reference time elapses from the first time point based on the battery voltage data, and
• estimate an aging amount of the battery of the satellite based on a sensing voltage difference that is a difference between the first battery voltage value and the second battery voltage value, a first reference voltage difference, and a second reference voltage difference.