../ dmsp_15_ephemeris_20171205.txt 22-Jun-2023 16:27 109463 dmsp_16_ephemeris_20171205.txt 22-Jun-2023 16:27 109334 dmsp_17_ephemeris_20171205.txt 22-Jun-2023 16:27 109322 dmsp_18_ephemeris_20171205.txt 22-Jun-2023 16:27 109317