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Visual observations Instr : 150mm / f15 Refractor ICQ Format Comet observations of : C/1987 B1 Nischikawa-Takamizawa-Toga IIIYYYYMnL YYYY MM DD.DD eM/mm.m:r AAA.ATF/xxxx /dd.ddnDC /t.ttmANG ICQ XX*OBSxxx 1987B1 1987 01 28. missing data ICQ XX DIE02 1987B1 1987 01 29. missing data ICQ XX DIE02 1987B1 1987 01 30. S 7.7 AA 15.0R15 85 3.5 ICQ XX DIE02 1987B1 1987 01 31. S 7.8 AA 15.0R15 85 ICQ XX DIE02