../ dmsp_15_ephemeris_20150502.txt 22-Jun-2023 16:41 109572 dmsp_16_ephemeris_20150502.txt 22-Jun-2023 16:41 109565 dmsp_17_ephemeris_20150502.txt 22-Jun-2023 16:41 109720 dmsp_18_ephemeris_20150502.txt 22-Jun-2023 16:41 109611 dmsp_19_ephemeris_20150502.txt 22-Jun-2023 16:41 109573