../ dmsp_15_ephemeris_20220820.txt 22-Jun-2023 17:08 109700 dmsp_16_ephemeris_20220820.txt 22-Jun-2023 17:08 109588 dmsp_17_ephemeris_20220820.txt 22-Jun-2023 17:08 109695 dmsp_18_ephemeris_20220820.txt 22-Jun-2023 17:08 109680