../ dmsp_15_ephemeris_20210322.txt 22-Jun-2023 16:29 108184 dmsp_16_ephemeris_20210322.txt 22-Jun-2023 16:29 108283 dmsp_17_ephemeris_20210322.txt 22-Jun-2023 16:29 108219 dmsp_18_ephemeris_20210322.txt 22-Jun-2023 16:29 108109