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information_for_astronomers:rx:s110mm
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information_for_astronomers:rx:s110mm [2013/03/12 14:08] 127.0.0.1 external edit |
information_for_astronomers:rx:s110mm [2024/07/10 16:22] (current) akraus |
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| - | ====== 11cm secondary focus receiver (2.595-2.675 GHz) ====== | + | ====== S110mm - 11cm secondary focus receiver (2.5-3.0 GHz) ====== |
| + | |||
| + | This system is mainly used for sensitive continuum and pulsar observations. Parts this band are heavily influenced by RFI. | ||
| + | |||
| + | ==== Overview ==== | ||
| + | |||
| + | ^ RX Name ^ [[information_for_astronomers:rx:bands|Band]] ^ Frequency range [GHz] ^ Polarisation^Nr. of Horns ^Horn position relativ to center of focus cabin^ | ||
| + | | **S110mm** | S | 2.5-3.0 | dual-circular| 1 | Az: 19.0 arcsec, Elv: 1593.0 arcsec| | ||
| - | This system is mainly used for sensitive continuum observations. Be aware, that this band may be influenced by RFI. Hence, the bandwidth should not be too large. | ||
| ==== Calibration Information ==== | ==== Calibration Information ==== | ||
| ^ Frequency [GHz] ^ Channel ^ Polarisation ^ Tcal [K] ^ Tsys [K] ^ Sensitivity [K/Jy] ^ SEFD [Jy] ^ Aperture Eff. [%] ^ TMB/S [K/Jy] ^ Main Beam Eff. [%] ^ FWHM [arcsec] ^ Last update ^ | ^ Frequency [GHz] ^ Channel ^ Polarisation ^ Tcal [K] ^ Tsys [K] ^ Sensitivity [K/Jy] ^ SEFD [Jy] ^ Aperture Eff. [%] ^ TMB/S [K/Jy] ^ Main Beam Eff. [%] ^ FWHM [arcsec] ^ Last update ^ | ||
| - | | 2.6395 | A/B | LCP/RCP | 2.5 | 17 | 1.5 | 11 | 53 | 2.6 | 58 | 260 | Nov 2012 | | + | | 2.6395 | A/B | LCP/RCP | 2.5 | 17 | 1.5 | 11 | 53 | 2.3 | 81 | 275 | Jan 2014 | |
| ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^ | ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^ | ||
| - | |A0 = 1.0|A1 = 0.0|A2 = 0.0|Feb 2007 | Nov 2012| | + | |A0 = 1.0|A1 = 0.0|A2 = 0.0| |May 2024| |
| **Comments:** | **Comments:** | ||
| * The values for LCP and RCP do not differ significantly. | * The values for LCP and RCP do not differ significantly. | ||
| - | * A typical value for the zenith opacity is 0.015. | + | * A typical value for the zenith opacity is < 0.01. |
| - | ==== Version description for OBSINP ==== | + | ==== Available receiver versions (for OBSINP) ==== |
| - | ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^ | + | ^Version^Description^Details^ |
| - | | **S110mm** | 11 | 2.6-2.68 (2.64) | 1 | | + | |EDDPOL | spectro-polarimeter backend for continuum observations| | |
| - | | **Version:** | **Comment** ||| | + | |EDD_GSPEC| gated spectrometer | with xx channels | |
| - | | 1. All Modes (BW: 80 MHz) | Narrow band Continuum + 8 ch. polarimeter ||| | + | |EDD_GSPEC_128k| gated spectrometer | with 128k channels | |
| - | | **Horn offsets** [arcsec]| 19.0, 1593.0 ||| | + | |EDD_GSPEC_512k| gated spectrometer | with 512k channels | |
| + | |EDD_PULSAR| pulsar backend | | | ||
| + | **Below here: Information is currently updated. | ||
| + | ** | ||
| ==== Channel assignment in the MBFITS data files ==== | ==== Channel assignment in the MBFITS data files ==== | ||
| Line 58: | Line 67: | ||
| | 35 | SB | cross | center=2.635 GHz, BW=80 MHz, cos AB | | | 35 | SB | cross | center=2.635 GHz, BW=80 MHz, cos AB | | ||
| | 36 | SB | cross | center=2.635 GHz, BW=80 MHz, sin AB | | | 36 | SB | cross | center=2.635 GHz, BW=80 MHz, sin AB | | ||
| + | |||
| + | ==== Spectroscopy modes and resolution ==== | ||
| + | ^ BW ^ nchan ^ nu ^ Df ^ Dv ^ dv ^ | ||
| + | ^ MHz ^ ^ MHz ^ kHz ^ km/s ^ km/s ^ | ||
| + | | 100 | 32768 | 2600 | 3.1 | 0.352 | 0.408 | | ||
| + | |||
| + | BW ... band width\\ | ||
| + | nchan ... number of spectral channels\\ | ||
| + | nu ... center frequency\\ | ||
| + | Df ... Channel separation (in frequency)\\ | ||
| + | Dv ... Channel separation (in velocity)\\ | ||
| + | dv ... Velocity resolution (dv=1.16*Dv) | ||
| ==== Tcal and Tsys measurements ==== | ==== Tcal and Tsys measurements ==== | ||
information_for_astronomers/rx/s110mm.1363093682.txt.gz · Last modified: 2013/09/30 13:51 (external edit)
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