../ dmsp_15_ephemeris_20111226.txt 22-Jun-2023 00:19 109343 dmsp_16_ephemeris_20111226.txt 22-Jun-2023 00:19 109235 dmsp_17_ephemeris_20111226.txt 22-Jun-2023 00:19 109312 dmsp_18_ephemeris_20111226.txt 22-Jun-2023 00:19 109423