FRB 20191023B
One-off burst
- Event ID
- 59526549
- Arrival, 400 MHz
- 2019-10-23 15:18:48.254 UTC
- Right ascension
- 142.026°
- Declination
- 33.139°
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 | 58779.6380585006 | 58779.63805853369 |
| Arrival time, infinite frequencyMJD | 58779.63791784621 | 58779.6379178793 |
| Width (fitburst)s | 0.000420 | 0.000754 |
| Peak frequencyMHz | 435.3 | 440.8 |
| Highest frequencyMHz | 800.2 | 707.3 |
| Spectral index | 0.96 | 1.99 |
| Spectral running | -5.72 | -10.30 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a system upgrade (hardware or software) and should be excluded from population studies.
Position
ra- 142.026± 0.162degrees
dec- 33.139± 0.032degrees
gl- 192.23degrees
gb- 46.05degrees
Detection and dispersion
bonsai_snr- 22.5
snr_fitb- 28.2
bonsai_dm- 469.1pc cm⁻³
dm_fitb- 469.0596± 0.00506pc cm⁻³
dm_exc_ne2001- 428.4pc cm⁻³
dm_exc_ymw16- 439.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58779.6380585006± 5.79 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58779.63791784621± 1.63 × 10⁻⁹MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000420± 0.0000195s
scat_time- 0.000000s
Flux and spectrum
flux- 0.86± 0.34Jy
fluence- 3.70± 1.16Jy ms
peak_freqDiffers between sub-bursts.- 435.3MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 0.96± 1.35
sp_runDiffers between sub-bursts.- -5.72± 2.31
Exposure and fluence thresholds
exp_up- 56.40± 51.55hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 0.8Jy ms
low_ft_95- —
up_ft_95- 1.4Jy ms
Fit quality
chi_sq- 2059681.411
dof- 2060467
flag_frac- 0.224