../ dmsp_15_ephemeris_20150510.txt 22-Jun-2023 16:16 109492 dmsp_16_ephemeris_20150510.txt 22-Jun-2023 16:16 109643 dmsp_17_ephemeris_20150510.txt 22-Jun-2023 16:16 109544 dmsp_18_ephemeris_20150510.txt 22-Jun-2023 16:16 109604 dmsp_19_ephemeris_20150510.txt 22-Jun-2023 16:16 109690