FRB 20221203J
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 253666502
- Arrival, 400 MHz
- 2022-12-03 02:20:51.590 UTC
- Right ascension
- 347.235°
- Declination
- 48.800°
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 | 59916.09781933418 | 59916.09782014388 | 59916.09782122428 |
| Arrival time, infinite frequencyMJD | 59916.09775304693 | 59916.09775385662 | 59916.09775493703 |
| Width (fitburst)s | 0.006394 | 0.004075 | 0.003896 |
| Peak frequencyMHz | 482.4 | 432.1 | 454.2 |
| Lowest frequencyMHz | 410.8 | 400.2 | 411.6 |
| Highest frequencyMHz | 566.6 | 487.9 | 501.3 |
| Spectral index | 33.28 | 23.87 | 59.97 |
| Spectral running | -89.05 | -155.69 | -236.70 |
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Position
ra- 347.235± 0.218degrees
dec- 48.800± 0.225degrees
gl- 106.08degrees
gb- -10.69degrees
Detection and dispersion
bonsai_snr- 11.2
snr_fitb- 25.0
bonsai_dm- 220.8pc cm⁻³
dm_fitb- 221.0573± 0.15714pc cm⁻³
dm_exc_ne2001- 94.7pc cm⁻³
dm_exc_ymw16- 97.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59916.09781933418± 1.97 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59916.09775304693± 5.11 × 10⁻⁸MJD
Burst shape
bc_width- 0.00885s
width_fitbDiffers between sub-bursts.- 0.006394± 0.0009578s
scat_time- 0.000000s
Flux and spectrum
flux- 0.39± 0.28Jy
fluence- 2.85± 1.16Jy ms
peak_freqDiffers between sub-bursts.- 482.4MHz
low_freqDiffers between sub-bursts.- 410.8MHz
high_freqDiffers between sub-bursts.- 566.6MHz
sp_idxDiffers between sub-bursts.- 33.28± 8.99
sp_runDiffers between sub-bursts.- -89.05± 21.60
Exposure and fluence thresholds
exp_up- 115.79± 65.05hour
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- 3895726.502
dof- 3896336
flag_frac- 0.271