FRB 20201224B
One-off burst
- Event ID
- 148863299
- Arrival, 400 MHz
- 2020-12-24 09:10:04.531 UTC
- Right ascension
- 110.984°
- Declination
- 16.808°
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 | 59207.38199688351 | 59207.38199692538 |
| Arrival time, infinite frequencyMJD | 59207.3816661974 | 59207.38166623927 |
| Width (fitburst)s | 0.000747 | 0.000343 |
| Peak frequencyMHz | 464.1 | 434.3 |
| Highest frequencyMHz | 696.6 | 740.7 |
| Spectral index | 4.14 | 1.32 |
| Spectral running | -13.96 | -8.08 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 110.984± 0.153degrees
dec- 16.808± 0.025degrees
gl- 201.27degrees
gb- 14.61degrees
Detection and dispersion
bonsai_snr- 35.0
snr_fitb- 48.7
bonsai_dm- 1101.9pc cm⁻³
dm_fitb- 1102.7847± 0.00481pc cm⁻³
dm_exc_ne2001- 1005.1pc cm⁻³
dm_exc_ymw16- 969.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59207.38199688351± 8.39 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59207.3816661974± 1.67 × 10⁻⁹MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.000747± 0.0000346s
scat_time- 0.002462± 0.0002308s
Flux and spectrum
flux- 1.78± 0.42Jy
fluence- 9.57± 1.93Jy ms
peak_freqDiffers between sub-bursts.- 464.1MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 696.6MHz
sp_idxDiffers between sub-bursts.- 4.14± 0.77
sp_runDiffers between sub-bursts.- -13.96± 1.47
Exposure and fluence thresholds
exp_up- 18.12± 29.39hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- —
low_ft_95- —
up_ft_95- —
Fit quality
chi_sq- 1718651.892
dof- 1721008
flag_frac- 0.250