../ dmsp_15_ephemeris_20200101.txt 22-Jun-2023 00:42 106527 dmsp_16_ephemeris_20200101.txt 22-Jun-2023 00:42 106407 dmsp_17_ephemeris_20200101.txt 22-Jun-2023 00:42 106472 dmsp_18_ephemeris_20200101.txt 22-Jun-2023 00:42 106457