../ dmsp_15_ephemeris_20120130.txt 22-Jun-2023 00:19 108024 dmsp_16_ephemeris_20120130.txt 22-Jun-2023 00:19 108023 dmsp_17_ephemeris_20120130.txt 22-Jun-2023 00:19 108002 dmsp_18_ephemeris_20120130.txt 22-Jun-2023 00:19 107899