../ dmsp_15_ephemeris_20111109.txt 22-Jun-2023 00:18 109470 dmsp_16_ephemeris_20111109.txt 22-Jun-2023 00:18 109442 dmsp_17_ephemeris_20111109.txt 22-Jun-2023 00:18 109415 dmsp_18_ephemeris_20111109.txt 22-Jun-2023 00:18 109520