../ dmsp_15_ephemeris_20150913.txt 22-Jun-2023 00:29 109627 dmsp_16_ephemeris_20150913.txt 22-Jun-2023 00:29 109686 dmsp_17_ephemeris_20150913.txt 22-Jun-2023 00:29 109814 dmsp_18_ephemeris_20150913.txt 22-Jun-2023 00:29 109623 dmsp_19_ephemeris_20150913.txt 22-Jun-2023 00:29 109604