../ dmsp_15_ephemeris_20110326.txt 22-Jun-2023 16:11 108178 dmsp_16_ephemeris_20110326.txt 22-Jun-2023 16:11 108200 dmsp_17_ephemeris_20110326.txt 22-Jun-2023 16:11 108273 dmsp_18_ephemeris_20110326.txt 22-Jun-2023 16:11 108281