../ dmsp_15_ephemeris_20140220.txt 22-Jun-2023 16:37 108208 dmsp_16_ephemeris_20140220.txt 22-Jun-2023 16:37 108124 dmsp_17_ephemeris_20140220.txt 22-Jun-2023 16:37 108109 dmsp_18_ephemeris_20140220.txt 22-Jun-2023 16:37 108046