../ dmsp_15_ephemeris_20160502.txt 22-Jun-2023 00:31 109533 dmsp_16_ephemeris_20160502.txt 22-Jun-2023 00:31 109530 dmsp_17_ephemeris_20160502.txt 22-Jun-2023 00:31 109751 dmsp_18_ephemeris_20160502.txt 22-Jun-2023 00:31 109600 dmsp_19_ephemeris_20160502.txt 22-Jun-2023 00:31 109557