../ dmsp_15_ephemeris_20220816.txt 22-Jun-2023 00:52 109656 dmsp_16_ephemeris_20220816.txt 22-Jun-2023 00:52 109752 dmsp_17_ephemeris_20220816.txt 22-Jun-2023 00:52 109686 dmsp_18_ephemeris_20220816.txt 22-Jun-2023 00:52 109699