../ dmsp_15_ephemeris_20120211.txt 22-Jun-2023 00:19 107949 dmsp_16_ephemeris_20120211.txt 22-Jun-2023 00:19 108066 dmsp_17_ephemeris_20120211.txt 22-Jun-2023 00:19 108084 dmsp_18_ephemeris_20120211.txt 22-Jun-2023 00:19 107995