../ dmsp_15_ephemeris_20160728.txt 22-Jun-2023 00:31 109491 dmsp_16_ephemeris_20160728.txt 22-Jun-2023 00:31 109510 dmsp_17_ephemeris_20160728.txt 22-Jun-2023 00:31 109686 dmsp_18_ephemeris_20160728.txt 22-Jun-2023 00:31 109606 dmsp_19_ephemeris_20160728.txt 22-Jun-2023 00:31 109508