../ dmsp_15_ephemeris_20121120.txt 22-Jun-2023 16:33 109460 dmsp_16_ephemeris_20121120.txt 22-Jun-2023 16:33 109409 dmsp_17_ephemeris_20121120.txt 22-Jun-2023 16:33 109384 dmsp_18_ephemeris_20121120.txt 22-Jun-2023 16:33 109347