../ dmsp_15_ephemeris_20160412.txt 22-Jun-2023 00:31 109536 dmsp_16_ephemeris_20160412.txt 22-Jun-2023 00:31 109543 dmsp_17_ephemeris_20160412.txt 22-Jun-2023 00:31 109756 dmsp_18_ephemeris_20160412.txt 22-Jun-2023 00:31 109579 dmsp_19_ephemeris_20160412.txt 22-Jun-2023 00:31 109743