../ dmsp_15_ephemeris_20181108.txt 22-Jun-2023 00:38 109430 dmsp_16_ephemeris_20181108.txt 22-Jun-2023 00:38 109426 dmsp_17_ephemeris_20181108.txt 22-Jun-2023 00:38 109378 dmsp_18_ephemeris_20181108.txt 22-Jun-2023 00:38 109346