../ dmsp_15_ephemeris_20200220.txt 22-Jun-2023 00:43 108153 dmsp_16_ephemeris_20200220.txt 22-Jun-2023 00:43 108116 dmsp_17_ephemeris_20200220.txt 22-Jun-2023 00:43 108190 dmsp_18_ephemeris_20200220.txt 22-Jun-2023 00:43 108040