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UFTI filters (previous)

Previous Filter Sets

**11 July 2003 - May 2007**
Wheel 1				Wheel 2
Posn	Filter	50% Cut on	50% Cut off	Posn	Filter	50% Cut on	50% Cut off
1	I	0.785	0.925	1	Prism	-	-
2	Z	0.850	1.055	2	Open	-	-
3	2.122MK	2.103	2.134	3	Blank	-	-
4	2.27cont[98]	2.260	2.280	4	1.69CH4_l	1.617	1.730
5	Open	-	-	5	1.57(cont)[98]	1.560	1.580
6	K'	-	-	6	1.644(FeII)[98]	1.636	1.652
7	J[98]	1.17	1.33	7	2.166(BrG)[98]	2.155	2.177
8	H[98]	1.49	1.78	8	2.173(BrGz)^*	2.147	2.199
9	K[98]	2.03	2.37	9	2.248MK	2.235	2.270

**February 2000 - 11 April 2001**
Wheel 1				Wheel 2
Posn	Filter	50% Cut on	50% Cut off	Posn	Filter	50% Cut on	50% Cut off
1	I	0.785	0.925	1	Prism	-	-
2	Z	0.850	1.055	2	Open	-	-
3	2.122(S1)	2.109	2.129	3	Blank	-	-
4	2.27cont[98]	2.260	2.280	4	2.32(CO-1%)	2.310	2.331
5	Open	-	-	5	1.57(cont)[98]	1.560	1.580
6	K'	-	-	6	1.644(FeII)[98]	1.636	1.652
7	J[98]	1.17	1.33	7	2.166(BrG)[98]	2.155	2.177
8	H[98]	1.49	1.78	8	2.173(BrGz)^*	2.147	2.199
9	K[98]	2.03	2.37	9	2.248(S1)^**	-	-

**May 1999 - February 2000**
Wheel 1		Wheel 2
Position	Filter	Position	Filter
1	I	1	Prism
2	Z	2	Open
3	2.122(S1)	3	Blank
4	2.1cont	4	2.32(CO-1%)
5	Open	5	1.57(cont)
6	K'	6	1.644(FeII)
7	J(98)	7	2.166(BrG)(98)
8	H(98)	8	2.181(BrGz)
9	K(98)	9	2.424(Qbranch)^*

**October 1998 - April 1999**
Wheel 1		Wheel 2
Position	Filter	Position	Filter
1	I	1	Blank
2	Z	2	Open
3	1.57(cont)	3	2.424(Qbranch)^*
4	1.644(FeII)	4	2.32(CO-1%)
5	Open	5	2.122(S1)
6	J(Barr)	6	2.10(cont)
7	J(98)	7	2.166(BrG)
8	H(98)	8	2.181(BrGz
9	K(98)	9	K'

^*Q-branch filter not useable

Contact: Watson P. Varricatt. Updated: Mon Jun 4 10:28:13 HST 2007

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