../ dmsp_15_ephemeris_20170724.txt 22-Jun-2023 16:49 109402 dmsp_16_ephemeris_20170724.txt 22-Jun-2023 16:49 109465 dmsp_17_ephemeris_20170724.txt 22-Jun-2023 16:49 109629 dmsp_18_ephemeris_20170724.txt 22-Jun-2023 16:49 109607