B4R

Calculator Mode

  1. After selecting the desired calculator mode, press the 'Change Mode' button.

    Map Mode:
    Choose the spectral mode and the scan speed in arcsec/sec. Provide the central frequency in GHz and the size of the desired map in arcsec.
    1) RMS expected in given time. Provide the desired integration time (in minutes) and press the 'Calculate' button to determine the sensitivity in the selected units (mK or mJy).
    2) Time required for target RMS. Provide the desired sensitivity (in order to change units press the 'Units' button and select between mK or mJy). Press the 'Calculate' button to determine the required integration time.

    Position Switching (PS) Mode:
    1) RMS expected in given time. Choose the spectral mode and provide your desired integration time in minutes. Press the 'Calculate' button to determine the sensitivity in the selected units (mK or mJy). 2) Time required for target RMS. Choose the spectral mode and provide your desired sensitivity (in order to change units press the 'Units' button and select between mK or mJy). Press the 'Calculate' button to determine the required integration time.


Inputs

  1. The XFFTS has a resolution of 76.3 kHz/channel (∼0.18 km/s). To improve the observation RMS channel binning can be performed in software. Values available in this field are provided for proposer convenience

  3. GHz (125-163 GHz)

    For the B4R a Tsys = 100K is considered regardless of the central frequency value.

  4. min