../ dmsp_15_ephemeris_20201030.txt 22-Jun-2023 00:45 109512 dmsp_16_ephemeris_20201030.txt 22-Jun-2023 00:45 109485 dmsp_17_ephemeris_20201030.txt 22-Jun-2023 00:45 109443 dmsp_18_ephemeris_20201030.txt 22-Jun-2023 00:45 109518