FRB 20221129B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 252939989
- Arrival, 400 MHz
- 2022-11-29 02:36:00.923 UTC
- Right ascension
- 347.092°
- Declination
- 48.802°
How the sub-bursts differ
This burst has 3 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 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59912.10834342943 | 59912.10834401784 | 59912.108344304674 |
| Arrival time, infinite frequencyMJD | 59912.108276578125 | 59912.10827716654 | 59912.10827745337 |
| Width (fitburst)s | 0.004869 | 0.002774 | 0.006448 |
| Peak frequencyMHz | 565.9 | 706.2 | 546.3 |
| Lowest frequencyMHz | 428.7 | 632.5 | 400.2 |
| Highest frequencyMHz | 747.0 | 788.5 | 800.2 |
| Spectral index | 20.70 | 215.38 | 5.51 |
| Spectral running | -29.86 | -189.61 | -8.84 |
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Position
ra- 347.092± 0.221degrees
dec- 48.802± 0.227degrees
gl- 105.99degrees
gb- -10.65degrees
Detection and dispersion
bonsai_snr- 10.5
snr_fitb- 22.4
bonsai_dm- 224.0pc cm⁻³
dm_fitb- 222.9383± 0.13384pc cm⁻³
dm_exc_ne2001- 96.2pc cm⁻³
dm_exc_ymw16- 99.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59912.10834401784± 2.70 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59912.10827716654± 4.83 × 10⁻⁸MJD
Burst shape
bc_width- 0.01868s
width_fitbDiffers between sub-bursts.- 0.002774± 0.0003199s
scat_time- 0.000000s
Flux and spectrum
flux- 0.40± 0.27Jy
fluence- 6.15± 2.89Jy ms
peak_freqDiffers between sub-bursts.- 706.2MHz
low_freqDiffers between sub-bursts.- 632.5MHz
high_freqDiffers between sub-bursts.- 788.5MHz
sp_idxDiffers between sub-bursts.- 215.38± 46.66
sp_runDiffers between sub-bursts.- -189.61± 40.20
Exposure and fluence thresholds
exp_up- 116.16± 64.65hour
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- 2905294.452
dof- 2905780
flag_frac- 0.273