FRB 20201015A
One-off burst
- Event ID
- 138404872
- Arrival, 400 MHz
- 2020-10-15 20:12:49.545 UTC
- Right ascension
- 206.722°
- Declination
- 56.024°
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 | 59137.84224002121 | 59137.84224010206 |
| Arrival time, infinite frequencyMJD | 59137.84214756831 | 59137.842147649164 |
| Width (fitburst)s | 0.000061 | 0.001177 |
| Peak frequencyMHz | 737.3 | 742.3 |
| Lowest frequencyMHz | 656.6 | 648.7 |
| Spectral index | 209.26 | 156.66 |
| Spectral running | -171.25 | -126.79 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 206.722± 0.260degrees
dec- 56.024± 0.253degrees
gl- 107.67degrees
gb- 59.43degrees
Detection and dispersion
bonsai_snr- 9.6
snr_fitb- 20.4
bonsai_dm- 308.9pc cm⁻³
dm_fitb- 308.3155± 0.00494pc cm⁻³
dm_exc_ne2001- 277.0pc cm⁻³
dm_exc_ymw16- 284.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59137.84224010206± 1.45 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59137.842147649164± 2.07 × 10⁻⁹MJD
Burst shape
bc_width- 0.00295s
width_fitbDiffers between sub-bursts.- 0.001177± 0.0001186s
scat_time- 0.000000s
Flux and spectrum
flux- 0.36± 0.22Jy
fluence- 2.32± 0.67Jy ms
peak_freqDiffers between sub-bursts.- 742.3MHz
low_freqDiffers between sub-bursts.- 648.7MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 156.66± 31.44
sp_runDiffers between sub-bursts.- -126.79± 25.69
Exposure and fluence thresholds
exp_up- 125.33± 73.43hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.0Jy ms
low_ft_95- —
up_ft_95- 1.7Jy ms
Fit quality
chi_sq- 2102021.389
dof- 2102425
flag_frac- 0.208