SEST - System Performance
Calibration Monitoring

Twice a month multiple line transitions from the 3mm, 2mm and 1mm band are observed in at least one of several calibration sources. The center line velocities, antenna temperatures and velocity integrated antenna temperatures (Gaussian fits) are then compared to previous results to check for consistency. Since monitoring of the calibration sources tests the performance of the complete telescope system its results are probably most relevant for the observer. However, this also means that any deviations apparent can have several causes (pointing, wind and weather, receivers) and thus only large, consistent deviations will be investigated in detail.The latest results of the calibration monitoring is presented in the table below. The observed sources are Orion KL, IRC+10216, M17SW and WB947.
 

Orion KL

SESIS Receiver
CO (1 - 0) - RX100
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
CS ( 3 - 2) - RX150
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
IRAM Receiver
CO (1 - 0) - RX115
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
CO ( 2 - 1) - RX230
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS

IRC+10216

SESIS Receiver
CO ( 1 - 0 ) - RX100
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
CS ( 3 - 2 ) - RX150
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
IRAM Receiver
CO ( 1 - 0 ) - RX115
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS
CO ( 2 - 1 ) - RX230
T A* Peak
HRS
LRS
  V Peak
HRS
LRS
T A* Int
HRS
LRS

M17SW

SESIS Receiver
CS ( 2 - 1) - RX100
T A* Peak
  V Peak
T A* Int
HRS
HRS
HRS
CS ( 3 - 2 ) - RX150
T A* Peak
  V Peak
T A* Int
HRS
HRS
HRS
IRAM Receiver
CS ( 2 - 1) - RX115
T A* Peak
  V Peak
T A* Int
HRS
HRS
HRS
CO ( 2 - 1 ) - RX230
T A* Peak
  V Peak
T A* Int
HRS
HRS
HRS

WB947

SESIS Receiver
CO ( 1 - 0) - RX100
T A* Peak
  V Peak
T A* Int
Width
HRS
HRS
HRS
HRS

IRAM Receiver
CO ( 1 - 0) - RX115
T A* Peak
  V Peak
T A* Int
Width
HRS
HRS
HRS
HRS
CO ( 2 - 1 ) - RX230
T A* Peak
  V Peak
T A* Int
Width
HRS
HRS
HRS
HRS


Last modified by Felipe Mac-Auliffe, July 23rd 2001
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