../ dmsp_15_ephemeris_20130707.txt 22-Jun-2023 00:22 109563 dmsp_16_ephemeris_20130707.txt 22-Jun-2023 00:22 109616 dmsp_17_ephemeris_20130707.txt 22-Jun-2023 00:22 109581 dmsp_18_ephemeris_20130707.txt 22-Jun-2023 00:22 109455