../ dmsp_15_ephemeris_20220810.txt 22-Jun-2023 00:52 109656 dmsp_16_ephemeris_20220810.txt 22-Jun-2023 00:52 109545 dmsp_17_ephemeris_20220810.txt 22-Jun-2023 00:52 109572 dmsp_18_ephemeris_20220810.txt 22-Jun-2023 00:52 109495