Equipment

TRAPPIST-South

The telescope

Model: Astelco RC Lightweight Telescope
Type: Ritchey-Chretien
Materiel: aluminum + carbon fiber
Diameter: 60 cm
System focal ratio: F/8
Unvignetted field of view: 50 mm diameter
Focusing System: Optec TCF-S3
Weight: 75 kg (with instruments)

The mount

Model: Astelco NTM-500
Type: German equatorial
Motors: direct drive system
Drive accuracy: no periodic error
Speed: op to 50 deg/sec
Pointing accuracy (with pointing model): 10 arcsec
Differential positioning accuracy: < 1 arcsec RMS
Tracking accuracy without autoguider: 2 arcsec/4 min
Weight: 85 kg

The camera

 

Model: FLI ProLine PL3041-BB
CCD: Fairchild Imaging 3041
Array size: 2048 x 2048 pixels
CCD Type: back-illuminated
Pixel size: 15 microns
Pixel scale: 0.64 arcsec/pixels
Field of view: 22x22 arcmin
Full well: 100,000 electrons
Gain:1.1 él/ADU
Peak QE: 96% at 750 nm
Read-out modes: 1x1 / 1x2 / 2x2 MHz
Read-out nose: 9.5 / 14 / 14 électrons
Read-out time: 6 / 4 / 2 secondes
Dark current: 0.1 él/s/pixel
Cooling: -55°C below ambient
Temperature stability: 0.1°C
Weight: 3 kg

The filter wheel

Model: Apogee AI-FW50-10S
Filter type:  50mm square filters
Max. filter thickness: 7mm
Weight: 2.3 kg (1 wheel with filters)
Filtres (wheel 1): Johnson/Cousins BVRcIc Sloan z
NIR Luminance I+z' (>700nm) Exoplanet Filter Exo (cut blue) de chez Astrodon
Narrow and filters NaI and H2O+
Filtres (wheel 2):
HD narrow band cometary filters on loan from Lowell Observatory: OH, NH, CN, CO+,C3, BC, C2, GC, RC

The dome

Model: Ash-Dome REA 5.0m
Diameter: 5m
Remark: lower-door transformed into drop-out shutter(type REB)
Automatization: performed by ACE

Weather station

 
 

Model: Diffraction Limited Boltwood Cloud Sensor II
ACE Additional Rainsensor

Softwares

 

Operating system: Microsoft Windows XP Pro
Observation scheduling: DC3-Dreams ACP Scheduler
Telescope control: DC3-Dreams ACP Observatory Control
Dome control: ACE SmartDome
Camera control: Diffraction Limited MaximDL
Plate solving: DC3-Dreams PinPoint
Focus control: FocusMax
Standard driver: ASCOM
Telescope Control: AsTelOs Express
Observatory automation: DC3-Dreams ACP Observatory Control
Miror planet astrometry: Astrometrica