../ dmsp_15_ephemeris_20111011.txt 22-Jun-2023 16:30 109567 dmsp_16_ephemeris_20111011.txt 22-Jun-2023 16:30 109599 dmsp_17_ephemeris_20111011.txt 22-Jun-2023 16:30 109666 dmsp_18_ephemeris_20111011.txt 22-Jun-2023 16:30 109720