../ dmsp_15_ephemeris_20110626.txt 22-Jun-2023 00:17 109524 dmsp_16_ephemeris_20110626.txt 22-Jun-2023 00:17 109524 dmsp_17_ephemeris_20110626.txt 22-Jun-2023 00:17 109639 dmsp_18_ephemeris_20110626.txt 22-Jun-2023 00:17 109418