../ dmsp_15_ephemeris_20150722.txt 22-Jun-2023 16:16 109500 dmsp_16_ephemeris_20150722.txt 22-Jun-2023 16:16 109599 dmsp_17_ephemeris_20150722.txt 22-Jun-2023 16:16 109615 dmsp_18_ephemeris_20150722.txt 22-Jun-2023 16:16 109530 dmsp_19_ephemeris_20150722.txt 22-Jun-2023 16:16 109682