Watec Monochromatic Imager (WMI) at Syowa Station
Instrument name	Watec Monochromatic Imager (WMI)
Observation site	Syowa Station, Antarctica
Observation location	Geographic latitude (deg): -69.00, longitude (deg): 39.58
Observation start	25 February, 2023
Instrument details	Camera: 4 sets of Watec WAT-910HX/RC Lens: ch1, ch4: Fujinon YV2.2X1.4A, ch2, ch3: Spacecom,TV1634DC Filter: ch1: Edumund Optics #65-137, ch2: #88-011, ch3: #65-146, ch4: #65-145 Center wave length: ch1: 430 nm, ch2: 560 nm, ch3: 486 nm, ch4: 480 nm FWHM: ch1-4: 10 nm Video encoder: AXIS Q7404
Target auroral line	ch1: 427.8nm (N2+ING), ch2: 557.7nm (OI), ch3: 486nm (Hb), ch4: 480nm (Hb-BG)
Data interval	Original: ch1: 1 sec, ch2: 1 sec, ch3: 5 sec, ch4: 5 sec Archive: ch1-4: 20 sec
Exposure time	ch1: 64 field, ch2: 32 field, ch3: 256 field, ch4: 256 field
Camera settings	GAIN: 41dB, GAMMA: 0.45, 3DNR: ON, LEVEL: 50, SETUP-LEVEL: 7.5IRE
Data type	All-sky image in JPG format
Image pixel resolution	640 (W) x 480 (H), 8 bit depth
Related WEB page	about / real time / archive / summary / keogram / 2H_keogram / movie Make keogram plot / Make geomagnetic projection plot Auroral Quick Look Viewer of NIPR ground-based network
IUGONET CDF file	all-sky data (asi/syo/yyyy/mm/dd/nipr_asi_syo_4278/4800/4860/5577) keogram data (ask/syo/yyyy/nipr_ask_syo_4278/4800/4860/5577)
Principal Investigator	Name: Akira Kadokura Affiliation: National Institute of Polar Research, Tokyo, Japan E-mail: kadokura(at) nipr.ac.jp
Reference	Polar Science, doi:10.1016/j.polar.2019.100501
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