../ dmsp_15_ephemeris_20220225.txt 22-Jun-2023 16:31 108190 dmsp_16_ephemeris_20220225.txt 22-Jun-2023 16:31 108138 dmsp_17_ephemeris_20220225.txt 22-Jun-2023 16:31 108108 dmsp_18_ephemeris_20220225.txt 22-Jun-2023 16:31 108083