../ dmsp_15_ephemeris_20110112.txt 22-Jun-2023 00:16 108006 dmsp_16_ephemeris_20110112.txt 22-Jun-2023 00:16 107837 dmsp_17_ephemeris_20110112.txt 22-Jun-2023 00:16 107894 dmsp_18_ephemeris_20110112.txt 22-Jun-2023 00:16 107882