2003 11: SuSI2 now running under LINUX

2002 12: IPs have been moved to sciops/observing/ip

2000 11: The dewar head has been replaced and the detectors have been backed for cleaning. 
                 The zero-points are unaffected

2000 10: M4 changed

1999 11: M4 changed with its spare (with a clean coating), and its alignment improved (no more vignetting).
	        Until Nov. 1999, the lowest part of the CCDs (~500pix) were
                slightly vignetted by M4.  In this data, this region should
                not be used for accurate photometry.  It was also discovered
                in Jul. 1999 that the coating of M4 was damaged, resulting in a
                slightly higher diffusion.  Both problems were solved here by
                replacing M4 and realigning it.

1999 11: In the past, the NTT was affected by a problem of scattered
                 light inside the dome, especially during bright
                 Moon. This was greatly improved by painting the inside
                 walls with a high diffusion paint

1999 08: 6 new narrow band filters have been received: He II, H beta, O III and Cont, H alpha and Cont

1998 09: Dewar changed.

1998 08: Parasite light problem fixed (encoder tapped and adapter fitted with velvet).

1998 02: SuSI2 commissioning

1997 12: SuSI2 installed at NTT