../ dmsp_15_ephemeris_20230205.txt 22-Jun-2023 00:55 107966 dmsp_16_ephemeris_20230205.txt 22-Jun-2023 00:55 108043 dmsp_17_ephemeris_20230205.txt 22-Jun-2023 00:55 108054 dmsp_18_ephemeris_20230205.txt 22-Jun-2023 00:55 108059