../ dmsp_15_ephemeris_20220815.txt 22-Jun-2023 00:52 109615 dmsp_16_ephemeris_20220815.txt 22-Jun-2023 00:52 109635 dmsp_17_ephemeris_20220815.txt 22-Jun-2023 00:52 109729 dmsp_18_ephemeris_20220815.txt 22-Jun-2023 00:52 109611