../ dmsp_15_ephemeris_20110526.txt 22-Jun-2023 00:17 109591 dmsp_16_ephemeris_20110526.txt 22-Jun-2023 00:17 109652 dmsp_17_ephemeris_20110526.txt 22-Jun-2023 00:17 109694 dmsp_18_ephemeris_20110526.txt 22-Jun-2023 00:17 109616