FRB 20230202A
One-off burst
- Event ID
- 268661867
- Arrival, 400 MHz
- 2023-02-02 21:31:24.703 UTC
- Right ascension
- 336.159°
- Declination
- 46.103°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 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 | 59977.89681357817 | 59977.89681369389 |
| Arrival time, infinite frequencyMJD | 59977.8965398809 | 59977.896539996626 |
| Width (fitburst)s | 0.000348 | 0.000405 |
| Peak frequencyMHz | 400.2 | 427.2 |
| Highest frequencyMHz | 800.2 | 489.9 |
| Spectral index | -8.12 | 16.00 |
| Spectral running | 8.11 | -122.70 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 336.159± 0.059degrees
dec- 46.103± 0.194degrees
gl- 98.08degrees
gb- -9.57degrees
Detection and dispersion
bonsai_snr- 13.0
snr_fitb- 24.0
bonsai_dm- 911.9pc cm⁻³
dm_fitb- 912.7361± 0.00770pc cm⁻³
dm_exc_ne2001- 773.7pc cm⁻³
dm_exc_ymw16- 782.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59977.89681369389± 6.95 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59977.896539996626± 2.41 × 10⁻⁹MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000405± 0.0000470s
scat_time- 0.001996± 0.0001251s
Flux and spectrum
flux- 0.86± 0.51Jy
fluence- 4.13± 1.82Jy ms
peak_freqDiffers between sub-bursts.- 427.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 489.9MHz
sp_idxDiffers between sub-bursts.- 16.00± 4.91
sp_runDiffers between sub-bursts.- -122.70± 30.06
Exposure and fluence thresholds
exp_up- 115.04± 61.60hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.8Jy ms
low_ft_95- —
up_ft_95- 3.4Jy ms
Fit quality
chi_sq- 1932085.020
dof- 1932648
flag_frac- 0.272