../ dmsp_15_ephemeris_20151121.txt 22-Jun-2023 00:29 109444 dmsp_16_ephemeris_20151121.txt 22-Jun-2023 00:29 109391 dmsp_17_ephemeris_20151121.txt 22-Jun-2023 00:29 109467 dmsp_18_ephemeris_20151121.txt 22-Jun-2023 00:29 109324 dmsp_19_ephemeris_20151121.txt 22-Jun-2023 00:29 109287