../ dmsp_15_ephemeris_20220829.txt 22-Jun-2023 00:52 109706 dmsp_16_ephemeris_20220829.txt 22-Jun-2023 00:52 109551 dmsp_17_ephemeris_20220829.txt 22-Jun-2023 00:52 109644 dmsp_18_ephemeris_20220829.txt 22-Jun-2023 00:52 109727