FRB 20190131D
One-off burst
- Event ID
- 28860953
- Arrival, 400 MHz
- 2019-01-31 03:07:30.762 UTC
- Right ascension
- 57.485°
- Declination
- 22.848°
How the sub-bursts differ
This burst has 2 sub-bursts. These 5 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 | 58514.13021714749 | 58514.13021724841 |
| Arrival time, infinite frequencyMJD | 58514.13002458966 | 58514.13002469057 |
| Peak frequencyMHz | 571.8 | 588.8 |
| Spectral index | 2.69 | 7.04 |
| Spectral running | -3.77 | -9.11 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 57.485± 0.128degrees
dec- 22.848± 0.048degrees
gl- 168.05degrees
gb- -24.00degrees
Detection and dispersion
bonsai_snr- 29.0
snr_fitb- 51.0
bonsai_dm- 642.1pc cm⁻³
dm_fitb- 642.1493± 0.00087pc cm⁻³
dm_exc_ne2001- 574.2pc cm⁻³
dm_exc_ymw16- 568.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58514.13021714749± 1.41 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58514.13002458966± 2.98 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00098s
width_fitb- 0.000273± 0.0000028s
scat_time- 0.000000s
Flux and spectrum
flux- 2.41± 1.27Jy
fluence- 6.80± 3.74Jy ms
peak_freqDiffers between sub-bursts.- 571.8MHz
low_freq- 400.2MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 2.69± 0.51
sp_runDiffers between sub-bursts.- -3.77± 0.66
Exposure and fluence thresholds
exp_up- 107.29± 27.05hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 3.9Jy ms
low_ft_95- —
up_ft_95- 7.3Jy ms
Fit quality
chi_sq- 1862184.849
dof- 1864771
flag_frac- 0.297