../ dmsp_15_ephemeris_20160517.txt 22-Jun-2023 00:31 109536 dmsp_16_ephemeris_20160517.txt 22-Jun-2023 00:31 109577 dmsp_17_ephemeris_20160517.txt 22-Jun-2023 00:31 109739 dmsp_18_ephemeris_20160517.txt 22-Jun-2023 00:31 109515 dmsp_19_ephemeris_20160517.txt 22-Jun-2023 00:31 109655