../ dmsp_15_ephemeris_20131018.txt 22-Jun-2023 00:23 109528 dmsp_16_ephemeris_20131018.txt 22-Jun-2023 00:23 109442 dmsp_17_ephemeris_20131018.txt 22-Jun-2023 00:23 109588 dmsp_18_ephemeris_20131018.txt 22-Jun-2023 00:23 109525