../ dmsp_15_ephemeris_20120104.txt 22-Jun-2023 00:19 106446 dmsp_16_ephemeris_20120104.txt 22-Jun-2023 00:19 106493 dmsp_17_ephemeris_20120104.txt 22-Jun-2023 00:19 106402 dmsp_18_ephemeris_20120104.txt 22-Jun-2023 00:19 106544