../ dmsp_15_ephemeris_20191116.txt 22-Jun-2023 00:42 109424 dmsp_16_ephemeris_20191116.txt 22-Jun-2023 00:42 109357 dmsp_17_ephemeris_20191116.txt 22-Jun-2023 00:42 109460 dmsp_18_ephemeris_20191116.txt 22-Jun-2023 00:42 109332