gbt status: current observing capabilities
DESCRIPTION
GBT Status: Current Observing Capabilities. Telescope Performance - Pointing. All-sky pointing rms ~ 10”. Tracking stability rms ~ 2” (5” peak-to-peak). Telescope Performance – Focus Tracking. Empirical Model. PF (800 MHz). Gregorian (X-band). Telescope Performance - Surface. - PowerPoint PPT PresentationTRANSCRIPT
GBT Commissioning Review – Tuesday, November 12, 2002
GBT Status: Current Observing Capabilities
GBT Commissioning Review – Tuesday, November 12, 2002
Telescope Performance - Pointing
All-sky pointing rms ~ 10”
Tracking stability rms ~ 2”(5” peak-to-peak)
GBT Commissioning Review – Tuesday, November 12, 2002
Telescope Performance – Focus Tracking
Empirical Model
PF (800 MHz)
Gregorian (X-band)
GBT Commissioning Review – Tuesday, November 12, 2002
Telescope Performance - Surface
70% efficiency at long wavelengths
~60% efficiency at 20 GHz
GBT Commissioning Review – Tuesday, November 12, 2002
Frequency Coverage
GBT Commissioning Review – Tuesday, November 12, 2002
Observing Modes
Pulsar(SP; BCPM; GBPP)
Spectral Line(SP; Spectrometer)
Continuum (DCR)
Radar (PFS)
VLBI (VLBA)
Camilo et al. (2002)Lockman (2002)
GB Staff
Campbell et al.
GBT Commissioning Review – Tuesday, November 12, 2002
Spectrometer Modes