../ dmsp_15_ephemeris_20221003.txt 22-Jun-2023 00:53 109645 dmsp_16_ephemeris_20221003.txt 22-Jun-2023 00:53 109633 dmsp_17_ephemeris_20221003.txt 22-Jun-2023 00:53 109617 dmsp_18_ephemeris_20221003.txt 22-Jun-2023 00:53 109536