../ dmsp_15_ephemeris_20150925.txt 22-Jun-2023 16:17 109677 dmsp_16_ephemeris_20150925.txt 22-Jun-2023 16:17 109586 dmsp_17_ephemeris_20150925.txt 22-Jun-2023 16:17 109579 dmsp_18_ephemeris_20150925.txt 22-Jun-2023 16:17 109562 dmsp_19_ephemeris_20150925.txt 22-Jun-2023 16:17 109631