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Home > Instrumentation > Heterodyne Instruments > Observing time calculator > Calculator ON/OFF Integration Time Estimator 2

ON/OFF RMS estimator V6.0
Use this calculator for on-off observations. If you are planning on-the-fly mapping, you should instead use the dedicated OTF Calculator.
The (average) elevation of the source, the receiver temperature, an on-source integration time ,and the spectral resolution, the σ (in K) can be estimated.See the observing time calculation page for details. To use a coarser vel. resolution Δvnew than selectable multiply the resulting σ with sqrt(Δv/Δvnew).

For an overview of the atmospheric transmission and the possible backend configurations for each receiver, check our atmospheric transmission tool.
Heterodyne receiver:
Frequency: [GHz]
Line Freq: [GHz]
Side Band:
Full resolution Δv [ channels] : [km/s]
Manual resolution Δv: [km/s]
pwv : [mm H2O]
Source elevation: [deg]
On Time : [s]
Results
Tau (source elev deg) 122232.767
Trec [K] 80.5
Tsys [K] (source elev deg) INF
Beam [arcsec] 18.1
RMS Position Switching NAN [mK]
RMS Beam Switching NAN [mK]

DateInformation
2017-08-30New version 6.0 available. New set of overhead parameters per instrument, measured from data obtained in 2016
2017-08-30SEPIA-B7 added, The specification values for SEPIA-B7 are estimates and will need to be updated after successful installation and commissioning



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Last update: September 1st, 2017 		[Home]