../ dmsp_15_ephemeris_20221021.txt 22-Jun-2023 00:53 109617 dmsp_16_ephemeris_20221021.txt 22-Jun-2023 00:53 109608 dmsp_17_ephemeris_20221021.txt 22-Jun-2023 00:53 109400 dmsp_18_ephemeris_20221021.txt 22-Jun-2023 00:53 109543