../ dmsp_15_ephemeris_20221107.txt 22-Jun-2023 00:53 109556 dmsp_16_ephemeris_20221107.txt 22-Jun-2023 00:53 109467 dmsp_17_ephemeris_20221107.txt 22-Jun-2023 00:53 109479 dmsp_18_ephemeris_20221107.txt 22-Jun-2023 00:53 109453