A Novel Scanning Method Applied to New-Style Solar Telescope Based on Autoguiding System

Table 1

The distinctions between FASOT and its prototype FASOT-1B.

System composition	FASOT	FASOT-1B
Guiding optics system	600mm; Focal length: 7200mm; Field of view: 6’×6’; (Gregory system)	400mm; Focal length:3200mm; Field of view: 2.1’×2.1’; (RC system)
Aoto guiding telescope	The aperture: 80mm; Focal ratio: 1:6	The aperture: 80mm; Focal ratio: 1:6
Aoto guiding image sensor	SCOMS chip; Resolution: 20482048; Pixel size: 5.5um	SCOMS chip; Resolution: 20482048; Pixel size: 5.5um
The number of micro lens of IFU	2×64×64	2×11×11
The number of optical fibers	2×64×64	2×11×11
The number of spectrograph	6	1
The number of detector of the spectrographs	12	1
Data acquisition computer	6	1
Data acquisition server	1	0
The type of the mount	DDM160 of Astrosysteme Austria; German equatorial mount	GM3000HSP of Micron 10; German equatorial mount
Software interface of the mount	SDK based on c/c++ and ASCOM	ASCOM
The tracking accuracy of the mount	⩽ 0.25’’ RMS	⩽1’’ RMS
The pointing accuracy of the mount	<8’’ RMS	<20’’ RMS
Polarimetric system	FASOT-1B is similar to FASOT	FASOT-1B is similar to FASOT
Loading capacity of the mount (only instrument)	300 Kg	100 Kg
The total weight of the target object used to scan	120Kg	70Kg