../ dmsp_15_ephemeris_20151208.txt 22-Jun-2023 00:29 109364 dmsp_16_ephemeris_20151208.txt 22-Jun-2023 00:29 109396 dmsp_17_ephemeris_20151208.txt 22-Jun-2023 00:29 109279 dmsp_18_ephemeris_20151208.txt 22-Jun-2023 00:29 109264 dmsp_19_ephemeris_20151208.txt 22-Jun-2023 00:29 109415