../ dmsp_15_ephemeris_20221210.txt 22-Jun-2023 00:54 109243 dmsp_16_ephemeris_20221210.txt 22-Jun-2023 00:54 109418 dmsp_17_ephemeris_20221210.txt 22-Jun-2023 00:54 109314 dmsp_18_ephemeris_20221210.txt 22-Jun-2023 00:54 109377