../ dmsp_15_ephemeris_20110305.txt 22-Jun-2023 00:17 108211 dmsp_16_ephemeris_20110305.txt 22-Jun-2023 00:17 108157 dmsp_17_ephemeris_20110305.txt 22-Jun-2023 00:17 108119 dmsp_18_ephemeris_20110305.txt 22-Jun-2023 00:17 108091