../ dmsp_15_ephemeris_20190219.txt 22-Jun-2023 00:39 108036 dmsp_16_ephemeris_20190219.txt 22-Jun-2023 00:39 108134 dmsp_17_ephemeris_20190219.txt 22-Jun-2023 00:39 108041 dmsp_18_ephemeris_20190219.txt 22-Jun-2023 00:39 108112