../ dmsp_15_ephemeris_20150725.txt 22-Jun-2023 00:28 109491 dmsp_16_ephemeris_20150725.txt 22-Jun-2023 00:28 109441 dmsp_17_ephemeris_20150725.txt 22-Jun-2023 00:28 109654 dmsp_18_ephemeris_20150725.txt 22-Jun-2023 00:28 109534 dmsp_19_ephemeris_20150725.txt 22-Jun-2023 00:28 109700