../ dmsp_15_ephemeris_20181112.txt 22-Jun-2023 16:54 109414 dmsp_16_ephemeris_20181112.txt 22-Jun-2023 16:54 109516 dmsp_17_ephemeris_20181112.txt 22-Jun-2023 16:54 109430 dmsp_18_ephemeris_20181112.txt 22-Jun-2023 16:54 109424