FRB 20220424C
One-off burst
- Event ID
- 222058504
- Arrival, 400 MHz
- 2022-04-24 10:57:35.414 UTC
- Right ascension
- 257.816°
- Declination
- 52.445°
How the sub-bursts differ
This burst has 2 sub-bursts. These 6 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 | 59693.45665988571 | 59693.45665997131 |
| Arrival time, infinite frequencyMJD | 59693.45639244713 | 59693.456392532724 |
| Width (fitburst)s | 0.000638 | 0.000578 |
| Peak frequencyMHz | 574.9 | 602.8 |
| Spectral index | 9.40 | 10.32 |
| Spectral running | -12.98 | -12.60 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 257.816± 0.108degrees
dec- 52.445± 0.169degrees
gl- 79.72degrees
gb- 36.24degrees
Detection and dispersion
bonsai_snr- 21.2
snr_fitb- 36.2
bonsai_dm- 890.8pc cm⁻³
dm_fitb- 891.8644± 0.00582pc cm⁻³
dm_exc_ne2001- 850.1pc cm⁻³
dm_exc_ymw16- 857.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59693.45665988571± 9.46 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59693.45639244713± 1.99 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000638± 0.0000250s
scat_time- 0.000000s
Flux and spectrum
flux- 1.17± 0.48Jy
fluence- 5.92± 1.69Jy ms
peak_freqDiffers between sub-bursts.- 574.9MHz
low_freq- 400.2MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 9.40± 1.19
sp_runDiffers between sub-bursts.- -12.98± 1.54
Exposure and fluence thresholds
exp_up- 142.70± 57.73hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.5Jy ms
low_ft_95- —
up_ft_95- 4.3Jy ms
Fit quality
chi_sq- 1921305.363
dof- 1922605
flag_frac- 0.276