../ dmsp_15_ephemeris_20150608.txt 22-Jun-2023 16:16 109476 dmsp_16_ephemeris_20150608.txt 22-Jun-2023 16:16 109578 dmsp_17_ephemeris_20150608.txt 22-Jun-2023 16:16 109552 dmsp_18_ephemeris_20150608.txt 22-Jun-2023 16:16 109599 dmsp_19_ephemeris_20150608.txt 22-Jun-2023 16:16 109632