../ dmsp_15_ephemeris_20221121.txt 22-Jun-2023 16:33 109347 dmsp_16_ephemeris_20221121.txt 22-Jun-2023 16:33 109352 dmsp_17_ephemeris_20221121.txt 22-Jun-2023 16:33 109396 dmsp_18_ephemeris_20221121.txt 22-Jun-2023 16:33 109329