Table 1.
Summary of the BINGO telescope and survey parameters (phase 1).
| Parameter | Value | Unit |
|---|---|---|
| Receiver and frequency band | ||
| System temperature, Tsys | 70 | K |
| Frequency range (fmin–fmax) | 980–1260 | MHz |
| Bandwidth, B | 280 | MHz |
| Number of redshift bins (a) | 30 | |
| Sampling time, τs | 10 | Hz |
| Estimated sensitivity (1 yr, 1 pixel) (b) | 206 | μK |
| Instrument noise (1 s, 1 z-bin) (c) | 23 | mK |
| Circular polarizations | 2 | |
| Telescope geometry | ||
| Instantaneous field of view (d) | 14.75 × 6.0 | deg2 (Dec, RA) |
| Number of horns (phase 1) | 28 | |
| Telescope beam solid angle (Ωbeam) (e) | 0.35 | deg2 |
| Optics FWHM (at 1.1 GHz) | ∼0.67 | deg |
| Collecting area | ||
| Geometrical area, Atot | 1602 | m2 |
| Effective area, Aeff(f) | ∼1120 | m2 |
| Mean Aeff from GRASP (f) | 621 | m2 |
| Survey strategy | ||
| Maximum instantaneous declination coverage (g) | 14.75 | deg |
| Maximum declination range (g) | 15.31 | deg |
| Full survey area (5 years) | ∼5324 | deg2 |
| Mission duration | 5 | years |
| Duty cycle (estimated) | 60–90 | % |
Notes.
Assumed for science forecasts; actual operational binning is derived from the digital backend output.
Assuming 1 pixel, full band, 1 year, and 60% duty cycle.
Assuming 1 redshift band, 1 polarization, 28 horns, and 60% duty cycle.
Field of view measured horn-to-horn.
Beam solid angle computed at 1120 MHz.
Mean Aeff estimated from GRASP simulations; actual values vary between 532–653 m2.
Declination range defined by horn height and fixed mirror geometry.
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