../ dmsp_15_ephemeris_20220905.txt 22-Jun-2023 00:52 109810 dmsp_16_ephemeris_20220905.txt 22-Jun-2023 00:52 109709 dmsp_17_ephemeris_20220905.txt 22-Jun-2023 00:52 109674 dmsp_18_ephemeris_20220905.txt 22-Jun-2023 00:52 109551