../ dmsp_15_ephemeris_20110118.txt 22-Jun-2023 00:16 107935 dmsp_16_ephemeris_20110118.txt 22-Jun-2023 00:16 107730 dmsp_17_ephemeris_20110118.txt 22-Jun-2023 00:16 107994 dmsp_18_ephemeris_20110118.txt 22-Jun-2023 00:16 107945