../ dmsp_15_ephemeris_20121007.txt 22-Jun-2023 16:13 109535 dmsp_16_ephemeris_20121007.txt 22-Jun-2023 16:13 109650 dmsp_17_ephemeris_20121007.txt 22-Jun-2023 16:13 109697 dmsp_18_ephemeris_20121007.txt 22-Jun-2023 16:13 109620