../ dmsp_15_ephemeris_20201014.txt 22-Jun-2023 00:45 109597 dmsp_16_ephemeris_20201014.txt 22-Jun-2023 00:45 109574 dmsp_17_ephemeris_20201014.txt 22-Jun-2023 00:45 109662 dmsp_18_ephemeris_20201014.txt 22-Jun-2023 00:45 109563