FRB 20190308C
One-off burst
- Event ID
- 32492404
- Arrival, 400 MHz
- 2019-03-08 09:30:42.286 UTC
- Right ascension
- 188.632°
- Declination
- 44.383°
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 | 58550.39632265025 | 58550.39632274979 |
| Arrival time, infinite frequencyMJD | 58550.3961725759 | 58550.396172675435 |
| Width (fitburst)s | 0.000140 | 0.000401 |
| Peak frequencyMHz | 450.0 | 449.2 |
| Highest frequencyMHz | 541.7 | 545.9 |
| Spectral index | 15.70 | 14.00 |
| Spectral running | -66.93 | -60.59 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 188.632± 0.183degrees
dec- 44.383± 0.184degrees
gl- 132.97degrees
gb- 72.41degrees
Detection and dispersion
bonsai_snr- 22.3
snr_fitb- 40.8
bonsai_dm- 498.2pc cm⁻³
dm_fitb- 500.4737± 0.02220pc cm⁻³
dm_exc_ne2001- 477.5pc cm⁻³
dm_exc_ymw16- 480.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58550.39632274979± 1.90 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58550.396172675435± 6.92 × 10⁻⁹MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.000401± 0.0001018s
scat_time- 0.012611± 0.0007147s
Flux and spectrum
flux- 0.53± 0.38Jy
fluence- 5.66± 3.03Jy ms
peak_freqDiffers between sub-bursts.- 449.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 545.9MHz
sp_idxDiffers between sub-bursts.- 14.00± 2.17
sp_runDiffers between sub-bursts.- -60.59± 7.33
Exposure and fluence thresholds
exp_up- 107.70± 54.78hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 4.2Jy ms
low_ft_95- —
up_ft_95- 8.0Jy ms
Fit quality
chi_sq- 2039211.576
dof- 2040864
flag_frac- 0.231