../ dmsp_15_ephemeris_20130823.txt 22-Jun-2023 00:22 109634 dmsp_16_ephemeris_20130823.txt 22-Jun-2023 00:22 109619 dmsp_17_ephemeris_20130823.txt 22-Jun-2023 00:22 109641 dmsp_18_ephemeris_20130823.txt 22-Jun-2023 00:22 109629