../ dmsp_15_ephemeris_20220117.txt 22-Jun-2023 00:49 108021 dmsp_16_ephemeris_20220117.txt 22-Jun-2023 00:49 107973 dmsp_17_ephemeris_20220117.txt 22-Jun-2023 00:49 107948 dmsp_18_ephemeris_20220117.txt 22-Jun-2023 00:49 107864