FRB 20220206A
One-off burst
- Event ID
- 210330790
- Arrival, 400 MHz
- 2022-02-06 17:02:06.072 UTC
- Right ascension
- 82.918°
- Declination
- 87.004°
How the sub-bursts differ
This burst has 2 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 |
|---|---|---|
| Arrival time, 400 MHzMJD | 59616.7097923874 | 59616.709792498834 |
| Arrival time, infinite frequencyMJD | 59616.70966023465 | 59616.70966034609 |
| Width (fitburst)s | 0.001706 | 0.007812 |
| Peak frequencyMHz | 510.0 | 492.0 |
| Lowest frequencyMHz | 445.7 | 400.2 |
| Highest frequencyMHz | 583.7 | 634.6 |
| Spectral index | 61.37 | 14.67 |
| Spectral running | -126.52 | -35.52 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 82.918± 0.245degrees
dec- 87.004± 0.320degrees
gl- 126.07degrees
gb- 26.07degrees
Detection and dispersion
bonsai_snr- 11.9
snr_fitb- 22.2
bonsai_dm- 440.4pc cm⁻³
dm_fitb- 440.7081± 0.11939pc cm⁻³
dm_exc_ne2001- 383.7pc cm⁻³
dm_exc_ymw16- 385.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59616.709792498834± 1.80 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59616.70966034609± 4.01 × 10⁻⁸MJD
Burst shape
bc_width- 0.01573s
width_fitbDiffers between sub-bursts.- 0.007812± 0.0011336s
scat_time- 0.000000s
Flux and spectrum
flux- 0.98± 0.39Jy
fluence- 6.42± 0.99Jy ms
peak_freqDiffers between sub-bursts.- 492.0MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 634.6MHz
sp_idxDiffers between sub-bursts.- 14.67± 4.38
sp_runDiffers between sub-bursts.- -35.52± 9.92
Exposure and fluence thresholds
exp_up- 1388.19± 678.06hour
exp_low- 1364.48± 604.84hour
low_ft_68- 2.4Jy ms
up_ft_68- 1.7Jy ms
low_ft_95- 4.0Jy ms
up_ft_95- 2.9Jy ms
Fit quality
chi_sq- 1584353.523
dof- 1584835
flag_frac- 0.403