FRB 20200315A
One-off burst
- Event ID
- 77207794
- Arrival, 400 MHz
- 2020-03-15 20:49:12.213 UTC
- Right ascension
- 6.881°
- Declination
- 45.885°
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 | 58923.86750236798 | 58923.8675024659 |
| Arrival time, infinite frequencyMJD | 58923.86737028366 | 58923.86737038158 |
| Width (fitburst)s | 0.000730 | 0.001225 |
| Peak frequencyMHz | 407.2 | 409.4 |
| Highest frequencyMHz | 629.9 | 800.2 |
| Spectral index | 0.42 | 0.21 |
| Spectral running | -12.10 | -4.60 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 6.881± 0.006degrees
dec- 45.885± 0.001degrees
gl- 118.59degrees
gb- -16.79degrees
Detection and dispersion
bonsai_snr- 55.4
snr_fitb- 182.7
bonsai_dm- 452.9pc cm⁻³
dm_fitb- 440.4799± 0.00545pc cm⁻³
dm_exc_ne2001- 355.6pc cm⁻³
dm_exc_ymw16- 359.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58923.8675024659± 9.00 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58923.86737038158± 1.87 × 10⁻⁹MJD
Burst shape
bc_width- 0.01868s
width_fitbDiffers between sub-bursts.- 0.001225± 0.0000539s
scat_time- 0.015262± 0.0002877s
Flux and spectrum
flux- 3.31± 1.23Jy
fluence- 43.18± 15.10Jy ms
peak_freqDiffers between sub-bursts.- 409.4MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 0.21± 0.24
sp_runDiffers between sub-bursts.- -4.60± 0.36
Exposure and fluence thresholds
exp_up- 81.07± 55.33hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 5.3Jy ms
low_ft_95- —
up_ft_95- 9.4Jy ms
Fit quality
chi_sq- 2165436.581
dof- 2198814
flag_frac- 0.172