../ dmsp_15_ephemeris_20161215.txt 22-Jun-2023 16:24 109445 dmsp_16_ephemeris_20161215.txt 22-Jun-2023 16:24 109353 dmsp_17_ephemeris_20161215.txt 22-Jun-2023 16:24 109219 dmsp_18_ephemeris_20161215.txt 22-Jun-2023 16:24 109356