Instrument Rotator
Specification
| Rotate Range | ±225degree | |
| Velocity | 4degress/sec | |
| Accuracy | ±1arcmin | |
Support Tools
| Name | Function | Specification | ||
|---|---|---|---|---|
| Pointing Camera/td> | Field Viewer for the Spectrometers | Field of view | 120×80arcsec | |
| Wavelength | 400～900nm | |||
| Limiting Magnitude | ～18mag (Exposure: 1sec) | |||
| Autoguider | Trackig error correction for large instruments and fiber instruments | Field of view | φ3arcmin | |
| Limiting Magnitude | ～17mag | |||
| Tracking error | 0.5arcsec/30min | |||
| Shack-Hartmann Camera | Tip-Tilt sensor for the segmented mirror | Field of view | φ70arcsec | |
| Accuracy | ±0.11arcsec | |||
| Limiting Magnitude | ～5mag | |||
| Phase Camera System | Gap sensor for the segmented mirror | |||
| Comparison Lamps | Calibration for large instruments and fiber instrument | Field of view | ～4x1arcmin | |
| Wavelength Comparison Lamps | Hg、Ne、Xe | |||
| Flat Lamp | Miniature light bulb + LEDs (400～1600nm) | |||
Large Instrument Flange
| Maximum Payload Size | φ1150mm (up to 350mm from the flange), φ1800mm (more than 350mm from the flange) |
|
| Maximum Load | 1000kgw, 1000kgf･m | |
| Flange Back Length | 120mm | |
| Field of view | φ 1degree (aberration free : 12arcmin) | |
| Mechanical Interface | See the below drawing | |
| Electronics | 100V AC (15A), Ethernet (1000BASE-T) | |
| Additional cables are acceptacle (cable bear length : 10m, maximum diameter : 38mm, minimum bend radius : 150mm) |
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Small Instrument Flange
| Maximun Payload Size | L432 x H250 x W300mm | |
| Flange Back Length | 360mm from the pick-off mirror, H150mm from the flange | |
| Field of view | φ9arcmin | |
| Mechanical Interface | See the below drawing | |
| Electronics | 100V AC (15A), Ethernet (1000BASE-T) | |
Optical-Fiber Stages
| Number of Stages | 2 | |
| Number of Mount Points | 3 positions / stage | |
| Maximun Payload Size | L250 x H38 x W25mm | |
| Maximum Load | 1kg/unit | |
| Flange Back Length | 177mm from the pick-off mirror | |
| Field of view | 6.4x1.0arcmin (shared in 3 units) | |
| Mechanical Interface | See the below drawing | |
| Electronics | 100V AC (15A), Ethernet (1000BASE-T) | |
