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information_for_astronomers:rx:s28mm
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information_for_astronomers:rx:s28mm [2013/10/21 15:40] bwinkel [Spectroscopy modes and resolution] |
information_for_astronomers:rx:s28mm [2023/12/18 23:08] (current) akraus |
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| ====== 2.8cm secondary focus receiver (10300-10600 MHz) ====== | ====== 2.8cm secondary focus receiver (10300-10600 MHz) ====== | ||
| - | This is a 4-horn system for sensitive continuum measurement, polarimetry, VLBI, and pulsar observations. | + | This is a 2-horn system for sensitive continuum measurement, polarimetry, VLBI, and pulsar observations. |
| ==== Calibration Information ==== | ==== Calibration Information ==== | ||
| Line 7: | Line 7: | ||
| ^ 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 ^ | ||
| - | |10.45 | A (BB) | LCP |7.5 |51 |1.35 |38 |47 |2.4 |56 |68 |Jul 2008| | + | |10.45 | A (BB) | LCP |6.4 |47 |1.34 |37 |49 |2.3 |59 |69 |Jan 2014| |
| - | |10.45 | B (BB) | RCP |7.5 |53 |1.35 |40 |46 |2.4 |57 |68 |Jul 2008| | + | |10.45 | B (BB) | RCP |6.3 |53 |1.35 |38 |50 |2.3 |59 |69 |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 = 0.99000|A1 = 8.2490e-04|A2 =-1.7433e-05|Feb 2007| Dec 2012 | | + | |A0 = 0.9616|A1 = 1.820E-3|A2 = -2.153E-5|Aug 2023| | |
| **Comments:** | **Comments:** | ||
| - | * The new gain curve (Feb 2007) was corrected for opacity. | ||
| * If no other information about the opacity is available a typical zenith tau value of about 0.02 should do a good job. | * If no other information about the opacity is available a typical zenith tau value of about 0.02 should do a good job. | ||
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| ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^ | ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^ | ||
| - | | **S28mm 4-beam** | 2.8 | 10.3-10.6 (10.45) | 4 | | + | | **S28mm 4-beam** | 2.8 | 10.3-10.6 (10.45) | 2 | |
| | **Version:** | **Comment** ||| | | **Version:** | **Comment** ||| | ||
| |1. Continuum/Line (BW: 300 MHz) | Continuum/Spectroscopy + Polarimeter ||| | |1. Continuum/Line (BW: 300 MHz) | Continuum/Spectroscopy + Polarimeter ||| | ||
| |2. Pulsar (BW: 100 MHz) | Pulsar narrow band ||| | |2. Pulsar (BW: 100 MHz) | Pulsar narrow band ||| | ||
| - | | **Horn offsets** [arcsec]| Horn 1: 0.0,-450.0, 2: 186.0,-450.0, 3: -825.0,-450.0, 4: -535.0,-450.0||| | + | | **Horn offsets** [arcsec]| Horn 1: -535.0,-450.0, 2: -825.0,-450.0||| |
| ==== Channel assignment in the MBFITS data files ==== | ==== Channel assignment in the MBFITS data files ==== | ||
| - | ^ 2.8cm SFK multi horn receiver with polarimeter, 4 horns ^^^^ | + | ^ 2.8cm SFK multi horn receiver with polarimeter, 1 horns ^^^^ |
| - | ^ Module 1 (2 horns) and Module 2 (2 horns) ^^^^ | + | |
| ^ Channel ^ IF ^ Pol. ^ Comment ^ | ^ Channel ^ IF ^ Pol. ^ Comment ^ | ||
| - | | 1 | BB | LCP | M1, Horn 1, TP A | | + | | 1 | BB | LCP | Horn 2, TP A | |
| - | | 2 | BB | RCP | M1, Horn 1, TP B | | + | | 2 | BB | RCP | Horn 2, TP B | |
| - | | 3 | BB | cross | M1, Horn 1, cos AB | | + | | 3 | BB | cross | Horn 2, cos AB | |
| - | | 4 | BB | cross | M1, Horn 1, sin AB | | + | | 4 | BB | cross | Horn 2, sin AB | |
| - | | 5 | BB | LCP | M1, Horn 2, TP A | | + | | 5 | BB | LCP | Horn 1, TP A | |
| - | | 6 | BB | RCP | M1, Horn 2, TP B | | + | | 6 | BB | RCP | Horn 1, TP B | |
| - | | 7 | BB | cross | M1, Horn 2, cos AB | | + | | 7 | BB | cross | Horn 1, cos AB | |
| - | | 8 | BB | cross | M1, Horn 2, sin AB | | + | | 8 | BB | cross | Horn 1, sin AB | |
| - | | 9 | BB | LCP | M2, Horn 3, TP A | | + | |
| - | | 10 | BB | RCP | M2, Horn 3, TP B | | + | |
| - | | 11 | BB | cross | M2, Horn 3, cos AB | | + | |
| - | | 12 | BB | cross | M2, Horn 3, sin AB | | + | |
| - | | 13 | BB | LCP | M2, Horn 4, TP A | | + | |
| - | | 14 | BB | RCP | M2, Horn 4, TP B | | + | |
| - | | 15 | BB | cross | M2, Horn 4, cos AB | | + | |
| - | | 16 | BB | cross | M2, Horn 4, sin AB | | + | |
| ==== Spectroscopy modes and resolution ==== | ==== Spectroscopy modes and resolution ==== | ||
information_for_astronomers/rx/s28mm.1382362839.txt.gz · Last modified: 2013/10/21 15:40 by bwinkel
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