../ dmsp_15_ephemeris_20121031.txt 22-Jun-2023 16:33 109487 dmsp_16_ephemeris_20121031.txt 22-Jun-2023 16:33 109569 dmsp_17_ephemeris_20121031.txt 22-Jun-2023 16:33 109549 dmsp_18_ephemeris_20121031.txt 22-Jun-2023 16:33 109479