VLA Exposure Calculator

VLA Exposure Calculator

Purpose of Calculation

Array Configuration

Number of Antennas

Polarization Setup

Single

Dual

Type of Image Weighting

Natural

Robust

Representative Frequency

GHz

Receiver Band

Unspecified

Approximate Beam Size

Unknown

Number of Frequencies

Session Includes Pointing

True

Digital Samplers

3 bit

8 bit

Elevation

Zenith (90 degrees)

Average Weather

Winter

Calculation Type

Time

Noise/Tb

Number of Sources

Time on Source (UT)

0h 0m 0s

Total On-Source Time

0h 0m 0s

Total Time (UT)

0h 0m 0s

Frequency Bandwidth

GHz

Line Velocity Width

km/s

RMS Noise (units/beam)

µJy

RMS Brightness (temp)

Confusion Level

0.0Jy

Overhead Explanation

January 2025

Input center frequency

You must provide a value for Frequency. Press the <Tab> key afterwards to move to the Bandwidth field.

Input bandwidth

You must provide a value for Bandwidth. Press the <Tab> key to leave the field and perform the calculation.

False
True

Zenith (90 degrees)
High (50-90 degrees)
Medium (25-50 degrees)
Low (10-25 degrees)

Winter
Spring
Summer
Autumn

m/s
km/s

µJy
mJy
Jy