../ dmsp_15_ephemeris_20120108.txt 22-Jun-2023 00:19 106473 dmsp_16_ephemeris_20120108.txt 22-Jun-2023 00:19 106311 dmsp_17_ephemeris_20120108.txt 22-Jun-2023 00:19 106350 dmsp_18_ephemeris_20120108.txt 22-Jun-2023 00:19 106540