../ dmsp_15_ephemeris_20230102.txt 22-Jun-2023 00:54 106648 dmsp_16_ephemeris_20230102.txt 22-Jun-2023 00:54 106427 dmsp_17_ephemeris_20230102.txt 22-Jun-2023 00:54 106387 dmsp_18_ephemeris_20230102.txt 22-Jun-2023 00:54 106507