../ dmsp_15_ephemeris_20150728.txt 22-Jun-2023 00:28 109443 dmsp_16_ephemeris_20150728.txt 22-Jun-2023 00:28 109613 dmsp_17_ephemeris_20150728.txt 22-Jun-2023 00:28 109683 dmsp_18_ephemeris_20150728.txt 22-Jun-2023 00:28 109559 dmsp_19_ephemeris_20150728.txt 22-Jun-2023 00:28 109596