INGRID filter and pupil stop sizes

Home · Search · About ING · Astronomy · Public Information · Engineering

Filters and pupil stops currently in INGRID

Position	Pupil stop wheel	Filter wheel 1	Filter wheel 2
1	ker	ucm	hcont
2	osca-clr	z	fe2
3	osca-obs	blank1	h2v1-0
4	cass-s	blank2	brg
5	cass-j	clear	h2v2-1
6	cass-h	h-barr	kcont
7	cass-k	ks-barr	blank1
8	naomi-clr	ks	blank2
9	naomi-obs	k	clear
10	kel	h	jcont
11	clear	j	pab

Filter and pupil stop sizes

Pupil stops

  
-----------------------------------------
          Inner Diameter  Outer Diameter
               (mm)          (mm)
-----------------------------------------
cass-s        6.82         25.25
cass-j/h/k    7.36         23.92
naomi-clr     ----          3.895
naomi-obs     1.76          3.895
osca-clr      ----          3.22
osca-obs      1.377         3.22
----------------------------------------

Filters
- Thickness: less than 6mm
- Diameter: 38mm (+/-0.1mm)

Back to INGRID Homepage

Last Updated: 7 April 2003
Almudena Zurita, azurita@ing.iac.es