../ dmsp_15_ephemeris_20151222.txt 22-Jun-2023 16:17 109406 dmsp_16_ephemeris_20151222.txt 22-Jun-2023 16:17 109403 dmsp_17_ephemeris_20151222.txt 22-Jun-2023 16:17 109261 dmsp_18_ephemeris_20151222.txt 22-Jun-2023 16:17 109420 dmsp_19_ephemeris_20151222.txt 22-Jun-2023 16:17 109250