../ dmsp_15_ephemeris_20200102.txt 22-Jun-2023 00:42 106551 dmsp_16_ephemeris_20200102.txt 22-Jun-2023 00:42 106461 dmsp_17_ephemeris_20200102.txt 22-Jun-2023 00:42 106411 dmsp_18_ephemeris_20200102.txt 22-Jun-2023 00:42 106459