../ dmsp_15_ephemeris_20131007.txt 22-Jun-2023 00:23 109612 dmsp_16_ephemeris_20131007.txt 22-Jun-2023 00:23 109590 dmsp_17_ephemeris_20131007.txt 22-Jun-2023 00:23 109547 dmsp_18_ephemeris_20131007.txt 22-Jun-2023 00:23 109613