../ dmsp_15_ephemeris_20150728.txt 22-Jun-2023 16:20 109443 dmsp_16_ephemeris_20150728.txt 22-Jun-2023 16:20 109613 dmsp_17_ephemeris_20150728.txt 22-Jun-2023 16:20 109683 dmsp_18_ephemeris_20150728.txt 22-Jun-2023 16:20 109559 dmsp_19_ephemeris_20150728.txt 22-Jun-2023 16:20 109596