../ dmsp_15_ephemeris_20170706.txt 22-Jun-2023 00:34 109489 dmsp_16_ephemeris_20170706.txt 22-Jun-2023 00:34 109581 dmsp_17_ephemeris_20170706.txt 22-Jun-2023 00:34 109594 dmsp_18_ephemeris_20170706.txt 22-Jun-2023 00:34 109612