../ dmsp_15_ephemeris_20170224.txt 22-Jun-2023 00:33 108090 dmsp_16_ephemeris_20170224.txt 22-Jun-2023 00:33 107998 dmsp_17_ephemeris_20170224.txt 22-Jun-2023 00:33 108078 dmsp_18_ephemeris_20170224.txt 22-Jun-2023 00:33 108063