../ dmsp_15_ephemeris_20111114.txt 22-Jun-2023 16:12 109465 dmsp_16_ephemeris_20111114.txt 22-Jun-2023 16:12 109452 dmsp_17_ephemeris_20111114.txt 22-Jun-2023 16:12 109344 dmsp_18_ephemeris_20111114.txt 22-Jun-2023 16:12 109494