FRB 20190308C
One-off burst
- Arrival, 400 MHz
- 2019-03-08 09:30:42.277 UTC
- Right ascension
- 188.360°
- Declination
- 44.390°
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 | 58550.3963226532 | 58550.3963227539 |
| Arrival time, infinite frequencyMJD | 58550.3961725652 | 58550.396172666 |
| Width (fitburst)s | 0.000400 | 0.000550 |
| Peak frequencyMHz | 453.4 | 449.0 |
| Highest frequencyMHz | 550.7 | 545.7 |
| Spectral index | 15.20 | 13.90 |
| Spectral running | -61.00 | -60.50 |
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Position
ra- 188.360± 0.026degrees
dec- 44.390± 0.170degrees
gl- 133.59degrees
gb- 72.36degrees
Detection and dispersion
bonsai_snr- 22.3
snr_fitb- 39.0
bonsai_dm- 498.2pc cm⁻³
dm_fitb- 500.5190± 0.02600pc cm⁻³
dm_exc_ne2001- 477.4pc cm⁻³
dm_exc_ymw16- 480.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58550.3963226532± 3.50 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58550.3961725652± 8.50 × 10⁻⁹MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.000400± 0.0003900s
scat_time- 0.002290± 0.0001700s
Flux and spectrum
flux- 0.47± 0.36Jy
fluence- 4.80± 2.50Jy ms
peak_freqDiffers between sub-bursts.- 453.4MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 550.7MHz
sp_idxDiffers between sub-bursts.- 15.20± 4.00
sp_runDiffers between sub-bursts.- -61.00± 13.00
Exposure and fluence thresholds
exp_up- 18.70± 7.30hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 3.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 6.8Jy ms
Fit quality
chi_sq- 666517.700
dof- 662100
flag_frac- 0.291