LDSS-3 Specs
Low-Dispersion Survey Spectrograph (LDSS-3)
Telescope:
Focal ratio: f/11
Scale:
- At Focal plane: 2.88 arcsec/mm
- At Detector: 12.6 arcsec/mm (0.189 arcsec/pixel)
Field:
- 8.3 arcmin diameter
Detector:
- STAO500A: 4096 x 4096 (15 µm pixels);
Gain & Readout Noise:
| Gain Setting |
Gain e-/DN |
Read Noise (e-) |
| Slow |
C1 C2 0.79 0.79 |
C1 C2 4.03 4.07 |
| Fast |
C1 C2 0.69 0.69 |
C1 C2 13.7 13.2 |
Wavelength Range:
- 3600-10000 Å
Aperture Wheel:
- 8 positions (7 masks + 1 clear)
Filter Wheel:
- 8 positions (g'r'i'z' + 1 clear)
Grism Wheel:
- 3 grism positions + 1 clear + 2 Hartmann masks
Staff Contact:
- John Mulchaey (jmulchaey at ociw.edu)
- Ricardo Covarrubias (rcovarrubias at lco.cl)
