../ dmsp_15_ephemeris_20221112.txt 22-Jun-2023 00:53 109574 dmsp_16_ephemeris_20221112.txt 22-Jun-2023 00:53 109482 dmsp_17_ephemeris_20221112.txt 22-Jun-2023 00:53 109297 dmsp_18_ephemeris_20221112.txt 22-Jun-2023 00:53 109442