../ dmsp_15_ephemeris_20160418.txt 22-Jun-2023 00:31 109586 dmsp_16_ephemeris_20160418.txt 22-Jun-2023 00:31 109562 dmsp_17_ephemeris_20160418.txt 22-Jun-2023 00:31 109808 dmsp_18_ephemeris_20160418.txt 22-Jun-2023 00:31 109733 dmsp_19_ephemeris_20160418.txt 22-Jun-2023 00:31 109670