../ dmsp_15_ephemeris_20210103.txt 22-Jun-2023 00:46 106529 dmsp_16_ephemeris_20210103.txt 22-Jun-2023 00:46 106421 dmsp_17_ephemeris_20210103.txt 22-Jun-2023 00:46 106260 dmsp_18_ephemeris_20210103.txt 22-Jun-2023 00:46 106481