../ dmsp_15_ephemeris_20110703.txt 22-Jun-2023 00:18 109582 dmsp_16_ephemeris_20110703.txt 22-Jun-2023 00:18 109649 dmsp_17_ephemeris_20110703.txt 22-Jun-2023 00:18 109600 dmsp_18_ephemeris_20110703.txt 22-Jun-2023 00:18 109607