../ dmsp_15_ephemeris_20130718.txt 22-Jun-2023 00:22 109536 dmsp_16_ephemeris_20130718.txt 22-Jun-2023 00:22 109587 dmsp_17_ephemeris_20130718.txt 22-Jun-2023 00:22 109729 dmsp_18_ephemeris_20130718.txt 22-Jun-2023 00:22 109589