../ dmsp_15_ephemeris_20150821.txt 22-Jun-2023 16:16 109517 dmsp_16_ephemeris_20150821.txt 22-Jun-2023 16:16 109718 dmsp_17_ephemeris_20150821.txt 22-Jun-2023 16:16 109683 dmsp_18_ephemeris_20150821.txt 22-Jun-2023 16:16 109637 dmsp_19_ephemeris_20150821.txt 22-Jun-2023 16:16 109685