Revision as of 10:29, 4 May 2014

Location

Observatory: Mayhill, New Mexico (New Mexico Skies) - MPC H06

(TEL T21 0.43-m f/6.8 astrograph + CCD + f/4.5 focal reducer)

UTC Minus 7:00. Daylight savings time is observed

Minimum Target Elevation: Approx 20-25 Degrees

North 32° 54’ Decimal: 32.9 North

West 105° 31’ Decimal: 105.5 West

Elevation: 2,225 metres (7,298 ft)

Operational Notes

Deep Field. Hybrid Missions. Typically used for Photometry and Imaging. FITS and TIF file formats. Dark Frame calibration data is available for 60, 120, 180, 300, 600 second exposures. Binx1 - Binx2.

T21 is fitted with a 0.66 Focal reducer.

The Planewave Ascension 200HR mount is so accurate whilst tracking that iTelescope Admin have disabled active guidance, with a corresponding decrease in session setup time when imaging.

T21 is a 'Full House' telescope system. It can Image deeply and do powerful science.

Instrument Package

• CCD: FLI-PL6303E CCD camera
• QE: 68% Peak
• Full Well: ~100,000e- Non Anti Blooming Gate (NABG)
• Dark Current: <.005 e-/pixel/sec. @ -45º C
• Pixel Size: 9um Square
• Resolution: 0.96 arc-secs/pixel
• Sensor: Frontlit
• Cooling: Set to -35ºC default
• Array: 3072 by 2048 (6.3 Megapixels)
• FOV: 32.8 x 49.2 arc-mins
• Filters: Luminance, Red, Green, Blue, Ha, SII, OIII, U, B, V, R, I
• Position Angle: 001º

Telescope Optics

• OTA: Planewave 17" CDK
• Optical Design: Corrected Dall-Kirkham Astrograph
• Aperture: 431mm
• Focal Length: 1940mm (0.66 Focal Reducer)
• F/Ratio: f/4.5
• Guiding: Active Guiding Disabled
• Mount: Planewave Ascension 200HR

Transformation Coefficients

VPHOT system –

• Tub= 1.035; standard deviation= .010
• Tbv= 0.974 ; standard deviation= .012
• Tvr= 1.077 ; standard deviation= .011
• Tri= 1.009 ; standard deviation= .018

• Tv= 0.012 ; standard deviation= .006
• Tr= -0.048; standard deviation= .015
• Ti= -0.063; standard deviation= .004
• Tb= -0.009; standard deviation= .014

These use the following definitions (lower case are instrument magnitudes; upper case are reference magnitudes of NGC7790 from Arne Henden’s standard field available at http://binaries.boulder.swri.edu/fields/ngc7790.html)

• Tv= slope of (V-v)/(B-V)
• Tr= slope of (R-r)/(V-R)
• Ti= slope of (I-i)/(R-I)
• Tb= slope(B-b)/(U-B)