ISPI NEWS

September 2003







ISPI performance



based on data taken on Jan. 19, 2003


Band
Background Flux
(electrons/sec)
per pixel		 Integrated Flux
(electrons/sec)
for m=15 star		 point source detection limit
5 sigma in
60 sec
J 310 4000 19.6
H 1560 5000 18.9
K' 2160 3300 18.3






ISPI filters

ISPI is offered with the broad band Y, J, H, Ks and a set of narrow band filters (see Table). If you are planning to apply for observing time using any of the filters marked as "ordered", please keep an eye on the ISPI latest news pages, or contact Nicole van der Bliek, Ron Probst, Dara Norman or Bob Blum.


ISPI Filters
Filter Central wavelength
(micron)		 FWHM Comment
J 1.25 Cut-on: 1.170mu
Cut-off: 1.326mu
H 1.635 Cut-on: 1.494mu
Cut-off: 1.775mu
Ks 2.150 Cut-on: 1.985mu
Cut-off: 2.305mu
Y 1.0381 BW 0.1457mu
Continuum, 2.03mu 2.03

He I 2.06

C IV 2.08

H2 2.12

Continuum, 2.14 mu 2.14
ordered
Br gamma 2.16

He II 2.19

H2 & continuum 2.25 mu 2.25
ordered






September 17, 2003
nvdbliek@ctio.noao.edu