../ dmsp_15_ephemeris_20221119.txt 22-Jun-2023 00:53 109445 dmsp_16_ephemeris_20221119.txt 22-Jun-2023 00:53 109443 dmsp_17_ephemeris_20221119.txt 22-Jun-2023 00:53 109306 dmsp_18_ephemeris_20221119.txt 22-Jun-2023 00:53 109356