../ dmsp_15_ephemeris_20200326.txt 22-Jun-2023 00:43 108242 dmsp_16_ephemeris_20200326.txt 22-Jun-2023 00:43 108058 dmsp_17_ephemeris_20200326.txt 22-Jun-2023 00:43 108092 dmsp_18_ephemeris_20200326.txt 22-Jun-2023 00:43 108201