../ dmsp_15_ephemeris_20230109.txt 22-Jun-2023 00:54 106544 dmsp_16_ephemeris_20230109.txt 22-Jun-2023 00:54 106555 dmsp_17_ephemeris_20230109.txt 22-Jun-2023 00:54 106467 dmsp_18_ephemeris_20230109.txt 22-Jun-2023 00:54 106519