../ dmsp_15_ephemeris_20110111.txt 22-Jun-2023 00:16 107851 dmsp_16_ephemeris_20110111.txt 22-Jun-2023 00:16 107948 dmsp_17_ephemeris_20110111.txt 22-Jun-2023 00:16 107898 dmsp_18_ephemeris_20110111.txt 22-Jun-2023 00:16 107872