../ dmsp_15_ephemeris_20200625.txt 22-Jun-2023 00:44 109579 dmsp_16_ephemeris_20200625.txt 22-Jun-2023 00:44 109525 dmsp_17_ephemeris_20200625.txt 22-Jun-2023 00:44 109468 dmsp_18_ephemeris_20200625.txt 22-Jun-2023 00:44 109530