../ dmsp_15_ephemeris_20200926.txt 22-Jun-2023 00:45 109641 dmsp_16_ephemeris_20200926.txt 22-Jun-2023 00:45 109634 dmsp_17_ephemeris_20200926.txt 22-Jun-2023 00:45 109676 dmsp_18_ephemeris_20200926.txt 22-Jun-2023 00:45 109675