T. Nagahama (STEL) and I. Morino (NIES) – Bruker 120M (0.004 cm 1 resolution) installed by STEL in May 1995. Tested at Toyokawa (35°N, 137°E) from December 1994 to April 1995. Bruker 120/5HR (0.0035 cm-1 resolution) installed by NIES in 2013. Total column data prior to 2000 is archived under previous PI (Kondo). Operations suspended from mid-2010 to 2013.