../ dmsp_15_ephemeris_20110204.txt 22-Jun-2023 16:28 108028 dmsp_16_ephemeris_20110204.txt 22-Jun-2023 16:28 108032 dmsp_17_ephemeris_20110204.txt 22-Jun-2023 16:28 108166 dmsp_18_ephemeris_20110204.txt 22-Jun-2023 16:28 108101