../ dmsp_15_ephemeris_20110602.txt 22-Jun-2023 00:17 109591 dmsp_16_ephemeris_20110602.txt 22-Jun-2023 00:17 109580 dmsp_17_ephemeris_20110602.txt 22-Jun-2023 00:17 109705 dmsp_18_ephemeris_20110602.txt 22-Jun-2023 00:17 109688