../ dmsp_15_ephemeris_20110416.txt 22-Jun-2023 00:17 109647 dmsp_16_ephemeris_20110416.txt 22-Jun-2023 00:17 109660 dmsp_17_ephemeris_20110416.txt 22-Jun-2023 00:17 109692 dmsp_18_ephemeris_20110416.txt 22-Jun-2023 00:17 109685