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information_for_astronomers:rx:s14mm [2016/05/31 13:25]
akraus
information_for_astronomers:rx:s14mm [2020/01/27 10:48] (current)
akraus
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 ^ 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 ^
-| 19.| 1 | LCP | 49 39 | 1.05 37 37 | 1.56 | 67 | 41.9 | Jan 2014 +| 19.25 | 1/2 | LCP/RCP 17 47 | 1.09 43 38 | 1.56 | 67 | 40 | Jan 2020 
-| 21.| 1 | LCP | 37 51 | 1.07 48 38 | 1.74 | 61 | 39.5 | Jan 2014 +| 21.15 | 1/2 | LCP/RCP 14 67 | 1.05 64 37 | 1.74 | 61 | 37 | Jan 2020 
-| 22.35 | 1 | LCP | 9.1 | 70 | 1.03 | 68 | 36 | 1.6 | 64 | 39.1 | Jun 2015+| 22.35 | 1 | LCP | 9.1 | 70 | 1.03 | 68 | 36 | 1.6 | 64 | 39.1 | Jun 2015 | 
-| 22.35 | 1 | RCP | 9.6 | 71 | 1.06 | 67 | 37 | 1.6 | 67 | 39.3 | Jun 2015+| 22.35 | 1 | RCP | 9.6 | 71 | 1.06 | 67 | 37 | 1.6 | 67 | 39.3 | Jun 2015 | 
-23.| 1 | LCP | 9.58 | 1.12 52 39 | 1.41 | 79 | 37.6 | Jan 2014 +22.85 | 1/2 | LCP/RCP | 9.74 | 1.03 72 36 | 1.41 | 79 | 36 | Jan 2020 
-25.| 1 | LCP | 8.0 | 59 | 1.12 53 39 | 1.57 | 71 | 35.6 | Jan 2014 |+24.75 | 1/2 | LCP/RCP | 8.0 | 72 | 1.01 71 36 | 1.57 | 71 | 34 | Jan 2020 |
  
 ^ 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 = 0.954 |A1 = 3.19E-3 |A2 = -5.42E-5 | Jun 2015 | Jun 2015 | |A0 = 0.954 |A1 = 3.19E-3 |A2 = -5.42E-5 | Jun 2015 | Jun 2015 |
-|A0 = 0.955 |A1 = 3.1E-3 |A2 = -5.3E-5 | Jan 2014 | Jan 2014 | 
  
 **Comments:​** **Comments:​**
    * Note that the system temperature at this frequency depends strongly on weather conditions! ​    * Note that the system temperature at this frequency depends strongly on weather conditions! ​
-   * Zenith tau values can range from 0.05 to 0.2.  +   * Zenith tau values can range from 0.05 to more than 0.2.  
-   * * tau=0.12, Temp. from 10-15C, Hum. 98% to 70% (should be summer)+ 
  
 ==== Version description for OBSINP ==== ==== Version description for OBSINP ====
  
 ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^ ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^
-| **S13mm Double Beam RX ** | 1.3 | 18.0-26.0 (22.0) | 2 | +| **S14mm Double Beam RX ** | 1.3 | 18.0-26.0 (22.0) | 2 | 
 | **Version:​** |   ​**Comment** ​  ||| | **Version:​** |   ​**Comment** ​  |||
 |1. Continuum (BW: 2 GHz) | Broad Band Continuum ||| |1. Continuum (BW: 2 GHz) | Broad Band Continuum |||
 | **Horn offsets** [arcsec]| Horn 1:​-95.6,​734.2;​ 2: 95.6,734.2 ||| | **Horn offsets** [arcsec]| Horn 1:​-95.6,​734.2;​ 2: 95.6,734.2 |||
  
 +
 +==== Receiver Bands ====
 +
 +The receiver delivers the data in four 2.5GHz-wide IF-subbands:​
 +^Band^Frequency Range^
 +|4|18.0-20.5 GHz|
 +|3|19.9-22.4 GHz|
 +|2|21.6-24.1 GHz|
 +|1|23.5-26.0 GHz|
  
 ==== Channel assignment in the MBFITS data files ==== ==== Channel assignment in the MBFITS data files ====
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 ==== Tcal measurements ==== ==== Tcal measurements ====
 +=== February 2019 ===
 +== Tcal and Tsys ==
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_tcal_from_specpointing_using_tau_spec.png?​365 |}}
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_tsys0_from_specpointing_using_tau_spec.png?​365 |}}
 +== Opacity and Tebb (WVR+AATM) ==
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_tau_from_specpointing_using_tau_spec.png?​365 |}}
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_tebb_from_specpointing_using_tau_spec.png?​365 |}}
 +
 +== T0 ==
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_t0_from_specpointing_using_tau_spec.png?​365 |}}
 +
 === April 2014 === === April 2014 ===
 Note, that in April the Tcal was changed in the receiver. Gaps in the curves are entirely due to measurement uncertainties. T0 and Tsys were deduced from spectroscopic skydip measurements and are subject to fitting errors caused by the low signal-to-noise ratio in the spectral bins. Note, that in April the Tcal was changed in the receiver. Gaps in the curves are entirely due to measurement uncertainties. T0 and Tsys were deduced from spectroscopic skydip measurements and are subject to fitting errors caused by the low signal-to-noise ratio in the spectral bins.
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 == Tcal and Tsys == == Tcal and Tsys ==
 +
 {{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_tcal_from_specpointing_using_tau_spec.png?​365 |}} {{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_tcal_from_specpointing_using_tau_spec.png?​365 |}}
 {{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_tsys0_from_specpointing_using_tau_spec.png?​365 |}} {{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_tsys0_from_specpointing_using_tau_spec.png?​365 |}}
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 == Antenna model == == Antenna model ==
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_taper_from_specpointing.png?365 |}} +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_taper_from_specpointing.png?365 |}} 
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_hpbw_from_specpointing.png?365 |}}+{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_hpbw_from_specpointing.png?365 |}} 
 + 
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_gamma_from_specpointing.png?​365 |}} 
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_gammamb_from_specpointing.png?​365 |}} 
 + 
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_eta_from_specpointing.png?​365 |}} 
 +{{:​information_for_astronomers:​rx:​EFFBG_S14mm_Kband_2019Feb23_NGC7027_aatm_etamb_from_specpointing.png?​365 |}} 
  
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_gamma_from_specpointing.png?​365 |}} 
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_gammamb_from_specpointing.png?​365 |}} 
  
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_eta_from_specpointing.png?​365 |}} 
-{{:​information_for_astronomers:​rx:​s14mm_jan14_ngc7027b_etamb_from_specpointing.png?​365 |}} 
information_for_astronomers/rx/s14mm.1464693948.txt.gz · Last modified: 2016/05/31 13:25 (external edit)