FRB 20221102B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 250364555
- Arrival, 400 MHz
- 2022-11-02 04:25:43.844 UTC
- Right ascension
- 347.377°
- Declination
- 48.806°
How the sub-bursts differ
This burst has 5 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 | Sub-burst 3 | Sub-burst 4 | Sub-burst 5 |
|---|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 59885.184534939086 | 59885.18453501358 | 59885.184535099994 | 59885.18453517617 | 59885.18453523587 |
| Arrival time, infinite frequencyMJD | 59885.184468731226 | 59885.184468805724 | 59885.184468892134 | 59885.18446896831 | 59885.18446902802 |
| Width (fitburst)s | 0.004249 | 0.006206 | 0.005958 | 0.001750 | 0.002099 |
| Peak frequencyMHz | 572.2 | 530.0 | 487.0 | 412.8 | 438.4 |
| Lowest frequencyMHz | 527.5 | 480.6 | 435.4 | 400.2 | 400.2 |
| Highest frequencyMHz | 620.7 | 584.6 | 544.7 | 531.1 | 498.8 |
| Spectral index | 248.52 | 134.78 | 72.09 | 2.26 | 25.20 |
| Spectral running | -347.61 | -239.85 | -183.65 | -36.30 | -138.23 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 347.377± 0.187degrees
dec- 48.806± 0.186degrees
gl- 106.17degrees
gb- -10.72degrees
Detection and dispersion
bonsai_snr- 20.5
snr_fitb- 30.5
bonsai_dm- 221.6pc cm⁻³
dm_fitb- 220.7925± 0.12066pc cm⁻³
dm_exc_ne2001- 94.8pc cm⁻³
dm_exc_ymw16- 97.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59885.18453523587± 8.77 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59885.18446902802± 3.72 × 10⁻⁸MJD
Burst shape
bc_width- 0.03244s
width_fitbDiffers between sub-bursts.- 0.002099± 0.0005593s
scat_time- 0.000000s
Flux and spectrum
flux- 0.39± 0.21Jy
fluence- 8.08± 2.73Jy ms
peak_freqDiffers between sub-bursts.- 438.4MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 498.8MHz
sp_idxDiffers between sub-bursts.- 25.20± 12.91
sp_runDiffers between sub-bursts.- -138.23± 76.55
Exposure and fluence thresholds
exp_up- 124.22± 60.91hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.6Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.1Jy ms
Fit quality
chi_sq- 1967853.834
dof- 1968760
flag_frac- 0.258