../ dmsp_15_ephemeris_20150807.txt 22-Jun-2023 16:16 109519 dmsp_16_ephemeris_20150807.txt 22-Jun-2023 16:16 109502 dmsp_17_ephemeris_20150807.txt 22-Jun-2023 16:16 109599 dmsp_18_ephemeris_20150807.txt 22-Jun-2023 16:16 109518 dmsp_19_ephemeris_20150807.txt 22-Jun-2023 16:16 109640