../ dmsp_15_ephemeris_20110505.txt 22-Jun-2023 00:17 109614 dmsp_16_ephemeris_20110505.txt 22-Jun-2023 00:17 109628 dmsp_17_ephemeris_20110505.txt 22-Jun-2023 00:17 109767 dmsp_18_ephemeris_20110505.txt 22-Jun-2023 00:17 109547