../ dmsp_15_ephemeris_20220828.txt 22-Jun-2023 00:52 109657 dmsp_16_ephemeris_20220828.txt 22-Jun-2023 00:52 109663 dmsp_17_ephemeris_20220828.txt 22-Jun-2023 00:52 109576 dmsp_18_ephemeris_20220828.txt 22-Jun-2023 00:52 109598