Cerro Tololo Inter-American Observatory
place Location
| latitude | 30° 10' 3.8'' S |
| Longitude | 70° 48' 18.58'' W |
NARIT is developing the Thai Southern Hemisphere Telescope (TST), at the Cerro Tololo Inter-American Observatory (CTIO). The 0.7-meter telescope, operated in collaboration with the University of North Carolina at Chapel Hill.
The location, in the Coquimbo region of the Republic of Chile, provides some of the world's best conditions for astronomical observation. The region's high desert climate provides stable, dry air that results in consistently excellent seeing and visibility.
devices Instruments
0.7m CDK700 Telescope System
- Pinpoint stars out to a 70mm image circle
- Dual Nasmyth focus, allowing simultaneous mounting of two instruments or easy switching between visual and imaging use
- Direct-drive motors on each axis for smooth, fast, and virtually silent movement of the telescope
- High resolution encoders on each axis for precise positioning
- Zero backlash
- Zero periodic error
- PointXP mount modeling software
- Field de-rotator / rotational field framing
| Optical Design | Corrected Dall-Kirkham (CDK) |
| Aperture | 700 mm (27.56 inch) |
| Focal Length | 4540 mm |
| Focal ratio | 6.5 |
| Central Obstruction | 47% of the Primary Mirror Diameter |
| Back Focus | 305 mm (12 inch) from Mounting Surface |
| Weight | 1,200 lbs |
| Optical Tube | Dual truss structure with Nasmyth focus |
| Optical Performance | 1.8 micron RMS spots [25mm on-axis] (400 to 900nm) 4.4 micron RMS spots [21mm off-axis] (400 to 900nm) 6.8 micron RMS spots [35mm off-axis] (400 to 900nm) Spot Diagram |
| Dimensions | 93.73" H x 43.25" W x 39" D |
| Optimal Field of View | 70 mm (0.86 degrees) / 51.6 arcminute |
| Focus Position | Nasmyth Focus |
| Fully Baffled Field | 60 mm |
| Image Scale | 22 microns per arcsecond |
CCD Camera
PlaneWave is an authorized dealer for Finger Lake Instruments Cameras and can provide all the most popular cameras including the ProLine Series.
ProLine sets the standards in key performance areas that include: Download Speeds, Cooling, Low Noise Operation, Anti-Ghosting Technology, Image Quality, and Linearity. ProLine download speeds are fast while maintaining low-noise frame quality. ProLine achieves outstanding cooling without water assist. Simply set the ProLine cooling where you want it and the camera will do the rest – quickly and without worries. ProLine frame quality is second to none thanks to careful design, implementation and setup. All cameras are assembled in our clean room under exacting conditions and must pass a battery of tests before being shipped.
Camera 1 Andor’s iKon-M 934 BV CCD Camera
| iKon-M 934 Specifications | |
|---|---|
| Sensor | CCD42-40 |
| Array Size | 1024 x 1024 |
| Pixel Size | 13 μm |
| Typical Maximum Cooling | -100º C Below Ambient |
| Typical Download Speeds @ 16-bit | 5, 3, 1, 0.05 MHz |
| Typical System Noise | 2.9 e- RMS @ 500 kHz |
| Nonlinearity | <1% |
| Operating Environment | -30º C - 45º C | 10% - 90% Relative Humidity |
| Sensor Manufacturer | NIR broadband |
| CCD Type | Back Illuminated |
| Mega Pixels | 1.0 |
| Sensor Diagonal | 27.6 mm |
| Linear Full Well | 100,000 e- |
| Typical Dark Current | 0.2 e-/pixel/sec. |
| Blooming Protection | None |
| Available Shutters | 65 mm |
| Shutter MTBF | 1,000,000 |
| Power | 12v |
| Interface | USB 2.0 |
| Dimensions | 6.2 x 6.2 x 3.8 (157.48 x 157.48 x 96.52) |
| Filter Wheel | FLI-CFW-3-20 |
FLI-CFW-3-20
CENTERLINE COLOR 20 POSITION COLOR FILTER WHEELM
Our color filter wheel’s robust mechanical design provides the basis for stunning, uncompromising images. Each FLI color filter wheel is precision engineered with a highly accurate no-slip drive chain and stepper motor. The large diameter pivot pin and bushings are precision ground and matched for smooth, quiet no-fuss operation night after night. FLI color filter wheels do not use internal lights for homing, so your images are protected from stray light interference.
- Number of Filter Wheels: 1
- Number of Filter Positions: 20
- Filter Thickness Range: 1.0 - 5.0 mm
- Filter Size: 28mm diameter
- Overall Thickness (less motor): 21.5 mm
- Camera Side Connection: 2.930" Pocket
- Optical Side Connection: 3.005" - 24 UNS-2B
- Weight: 6.9 lbs
Filter Available : Empty, Lum, Red, Green, Blue, U-Bessell, B-Bessell, V-Bessell, R-Bessell", I-Bessell, u-Sloan, g-Sloan, r-Sloan, i-Sloan, z-Sloan, Sii/8, RG-Clear
