FRB 20221214B
A burst from FRB20220529A
- Repeater
- FRB20220529A
- Event ID
- 255397033
- Arrival, 400 MHz
- 2022-12-14 03:41:38.533 UTC
- Right ascension
- 17.712°
- Declination
- 20.494°
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 | 59927.15391810038 | 59927.15391821104 | 59927.15391827413 |
| Arrival time, infinite frequencyMJD | 59927.15384428887 | 59927.15384439952 | 59927.15384446261 |
| Width (fitburst)s | 0.002948 | 0.001931 | 0.002063 |
| Peak frequencyMHz | 636.2 | 596.4 | 581.3 |
| Lowest frequencyMHz | 562.3 | 531.3 | 529.1 |
| Highest frequencyMHz | 719.8 | 669.3 | 638.7 |
| Spectral index | 140.02 | 137.72 | 193.77 |
| Spectral running | -151.03 | -172.63 | -259.50 |
Loading
Loading
Notes
- The pulse emission region was extended during fluence estimation.
- Flux and fluence. Flux/fluence could not be determined due to an incorrect peak flux measurement.
Position
ra- 17.712± 0.028degrees
dec- 20.494± 0.194degrees
gl- 129.07degrees
gb- -42.15degrees
Detection and dispersion
bonsai_snr- 15.8
snr_fitb- 40.1
bonsai_dm- 249.9pc cm⁻³
dm_fitb- 246.1495± 0.94070pc cm⁻³
dm_exc_ne2001- 206.4pc cm⁻³
dm_exc_ymw16- 215.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59927.15391821104± 4.55 × 10⁻⁷MJD
mjd_infDiffers between sub-bursts.- 59927.15384439952± 5.36 × 10⁻⁷MJD
Burst shape
bc_width- 0.00786s
width_fitbDiffers between sub-bursts.- 0.001931± 0.0001628s
scat_time- -0.000344± 0.0000007s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 596.4MHz
low_freqDiffers between sub-bursts.- 531.3MHz
high_freqDiffers between sub-bursts.- 669.3MHz
sp_idxDiffers between sub-bursts.- 137.72± 823.90
sp_runDiffers between sub-bursts.- -172.63± 2741.40
Exposure and fluence thresholds
exp_up- 92.14± 42.33hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 1635076.742
dof- 1636669
flag_frac- 0.383