SESHAN25
my home upper gernal Observation ARO HHT ARO 12M ASTE CSO DeLingHa13 IRAM 30M KOSMA LSST Nobeyama 45M YNAO40m SESHAN25 Herschel

Caution!! Although I am happy to share my research notes below with all visitors to my webpages, these pages are mainly designed for my own use and subject to change without warning. I do not guarantee the correctness of all contents as well.

SESHAN25 -- SeShan 20m radio telescope of Shanghai Astronomica Observatory (see the orginal webpage: here)

Basic factors:

Position: E 121d11m59s N31d5m57s
Elevation: 5m above the sea level
Diameter: 25m
Telescope structure: Cassegrains system, Azimuth pitching ring
Surface accuracy: 0.52mm
Pointing accuracy: 37 arcsec 
Tracking speed: (AZ) 1deg/sec, (EL) 0.6deg/sec
Rotation limit: -78deg < AZ < 430deg, 5deg < EL < 88deg
VLBI backends frame: VLBA4
VLBI dataformat: MarkIV
VLBI backends recording machine: mark5A, VLBA, S2
Data recording media: harddisk, thin tape, video tape
Wavelengths: 18cm, 5cm, 13/3.6cm, 1.3cm

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