FRB 20211005B
One-off burst
- Event ID
- 189824017
- Arrival, 400 MHz
- 2021-10-05 20:51:48.492 UTC
- Right ascension
- 207.149°
- Declination
- 56.540°
How the sub-bursts differ
This burst has 4 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 | Sub-burst 3 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 59492.86931124556 | 59492.86931148072 | 59492.86931149623 | 59492.8693115508 |
| Arrival time, infinite frequencyMJD | 59492.86914376607 | 59492.86914400122 | 59492.86914401673 | 59492.86914407131 |
| Width (fitburst)s | 0.000423 | 0.000459 | 0.002288 | 0.003381 |
| Peak frequencyMHz | 400.2 | 639.1 | 442.5 | 584.5 |
| Lowest frequencyMHz | 400.2 | 462.0 | 400.2 | 400.2 |
| Highest frequencyMHz | 800.2 | 800.2 | 529.5 | 800.2 |
| Spectral index | -4.29 | 20.49 | 14.32 | 11.65 |
| Spectral running | 1.97 | -21.88 | -71.33 | -15.38 |
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Position
ra- 207.149± 0.175degrees
dec- 56.540± 0.061degrees
gl- 107.67degrees
gb- 58.86degrees
Detection and dispersion
bonsai_snr- 19.0
snr_fitb- 34.5
bonsai_dm- 557.6pc cm⁻³
dm_fitb- 558.5170± 0.00921pc cm⁻³
dm_exc_ne2001- 527.1pc cm⁻³
dm_exc_ymw16- 534.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59492.86931124556± 1.57 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59492.86914376607± 3.18 × 10⁻⁹MJD
Burst shape
bc_width- 0.03342s
width_fitbDiffers between sub-bursts.- 0.000423± 0.0000608s
scat_time- 0.006525± 0.0006198s
Flux and spectrum
flux- 0.60± 0.27Jy
fluence- 6.59± 2.57Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- -4.29± 0.76
sp_runDiffers between sub-bursts.- 1.97± 1.19
Exposure and fluence thresholds
exp_up- 146.54± 64.02hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 3.3Jy ms
low_ft_95- —
up_ft_95- 5.9Jy ms
Fit quality
chi_sq- 992868.484
dof- 994034
flag_frac- 0.278