FRB 20220626A
One-off burst
- Event ID
- 232519583
- Arrival, 400 MHz
- 2022-06-26 09:11:19.069 UTC
- Right ascension
- 291.811°
- Declination
- 7.737°
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 | 59756.38285950173 | 59756.38285959865 |
| Arrival time, infinite frequencyMJD | 59756.3826041997 | 59756.38260429662 |
| Width (fitburst)s | 0.000868 | 0.000654 |
| Peak frequencyMHz | 539.8 | 527.0 |
| Lowest frequencyMHz | 472.2 | 456.7 |
| Highest frequencyMHz | 617.2 | 608.2 |
| Spectral index | 76.83 | 61.70 |
| Spectral running | -128.37 | -112.08 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 291.811± 0.040degrees
dec- 7.737± 0.242degrees
gl- 43.92degrees
gb- -4.35degrees
Detection and dispersion
bonsai_snr- 13.8
snr_fitb- 26.5
bonsai_dm- 852.4pc cm⁻³
dm_fitb- 851.3910± 0.09931pc cm⁻³
dm_exc_ne2001- 463.8pc cm⁻³
dm_exc_ymw16- 611.0pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59756.38285959865± 1.34 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59756.38260429662± 3.27 × 10⁻⁸MJD
Burst shape
bc_width- 0.02064s
width_fitbDiffers between sub-bursts.- 0.000654± 0.0001555s
scat_time- 0.020423± 0.0021995s
Flux and spectrum
flux- 1.16± 0.74Jy
fluence- 13.26± 6.06Jy ms
peak_freqDiffers between sub-bursts.- 527.0MHz
low_freqDiffers between sub-bursts.- 456.7MHz
high_freqDiffers between sub-bursts.- 608.2MHz
sp_idxDiffers between sub-bursts.- 61.70± 10.32
sp_runDiffers between sub-bursts.- -112.08± 17.90
Exposure and fluence thresholds
exp_up- 80.19± 43.17hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 5.7Jy ms
low_ft_95- —
up_ft_95- 10.4Jy ms
Fit quality
chi_sq- 1626586.910
dof- 1627278
flag_frac- 0.387