../ dmsp_15_ephemeris_20200527.txt 22-Jun-2023 00:44 109482 dmsp_16_ephemeris_20200527.txt 22-Jun-2023 00:44 109534 dmsp_17_ephemeris_20200527.txt 22-Jun-2023 00:44 109696 dmsp_18_ephemeris_20200527.txt 22-Jun-2023 00:44 109506