../ dmsp_15_ephemeris_20150502.txt 22-Jun-2023 00:27 109572 dmsp_16_ephemeris_20150502.txt 22-Jun-2023 00:27 109565 dmsp_17_ephemeris_20150502.txt 22-Jun-2023 00:27 109720 dmsp_18_ephemeris_20150502.txt 22-Jun-2023 00:27 109611 dmsp_19_ephemeris_20150502.txt 22-Jun-2023 00:27 109573