../ dmsp_15_ephemeris_20111007.txt 22-Jun-2023 00:18 109532 dmsp_16_ephemeris_20111007.txt 22-Jun-2023 00:18 109577 dmsp_17_ephemeris_20111007.txt 22-Jun-2023 00:18 109606 dmsp_18_ephemeris_20111007.txt 22-Jun-2023 00:18 109533