Joint Astronomy Centre
Google
Show document only
JAC Home
JCMT
UKIRT
Contact info
JAC Divisions
OMP
Outreach
Seminars
Staff-only Wiki
Weather
Web Cameras
____________________

Observing at UKIRT
Service Observing
UKIDSS Survey Operations
Target of Opportunity
Calibration & Standards
Astronomical Utilities
UKIRT Archive
Public wiki
Accessing UKIDSS Data
Accessing PI Data
Reduction Cookbooks
Telescope
Site Quality
Instruments
Newsletter/Publications
UKIRT Faults
JAC Safety Manual
Safety Briefing
IRCAM3 manual

IRCAM/TUFTI Sky Brightness, Background Limited Exposures and Saturation Magnitudes for Full Array, Standard Readout

Filter Bias Sky Counts Sky Brightness Background Saturation
  Setting /second/pixel Mag/sq.arcsec. Limit exp. Mag.
        seconds 0.5" seeing
J Standard 6 15.7 60 8.5
H   40 13.6 15 8.8
K   40 13.0 15 8.0
2.1cont   1.3   500 4.0
2.248 S1   3.2   200 5.0
3.1 ice   320   2  
3.4nbL   3200   0.2  
3.5mbL   9900   0.07  
4.0cont, Br Alpha   9400   0.07  
L' Deepwell 7.8e4 3.4   5.0
M'   1.7e5 0.5   4.0

Contact: Sandy Leggett. Updated: Thu Oct 7 15:27:16 HST 2004

Return to top ^