../ dmsp_15_ephemeris_20190224.txt 22-Jun-2023 00:39 108239 dmsp_16_ephemeris_20190224.txt 22-Jun-2023 00:39 108102 dmsp_17_ephemeris_20190224.txt 22-Jun-2023 00:39 108118 dmsp_18_ephemeris_20190224.txt 22-Jun-2023 00:39 108064