FRB 20221203D
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 253665135
- Arrival, 400 MHz
- 2022-12-03 02:16:22.905 UTC
- Right ascension
- 344.881°
- Declination
- 48.794°
How the sub-bursts differ
This burst has 2 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 |
|---|---|---|
| Arrival time, 400 MHzMJD | 59916.09470955291 | 59916.09471015863 |
| Arrival time, infinite frequencyMJD | 59916.094643207674 | 59916.09464381339 |
| Width (fitburst)s | 0.004257 | 0.004991 |
| Peak frequencyMHz | 491.9 | 504.8 |
| Lowest frequencyMHz | 436.0 | 437.3 |
| Highest frequencyMHz | 554.8 | 582.8 |
| Spectral index | 65.39 | 51.88 |
| Spectral running | -158.53 | -111.70 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 344.881± 0.228degrees
dec- 48.794± 0.223degrees
gl- 104.64degrees
gb- -10.06degrees
Detection and dispersion
bonsai_snr- 11.7
snr_fitb- 27.1
bonsai_dm- 220.8pc cm⁻³
dm_fitb- 221.2507± 0.17644pc cm⁻³
dm_exc_ne2001- 88.1pc cm⁻³
dm_exc_ymw16- 91.3pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59916.09470955291± 1.82 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59916.094643207674± 5.60 × 10⁻⁸MJD
Burst shape
bc_width- 0.01376s
width_fitbDiffers between sub-bursts.- 0.004257± 0.0002691s
scat_time- 0.000000s
Flux and spectrum
flux- 0.34± 0.23Jy
fluence- 1.76± 0.38Jy ms
peak_freqDiffers between sub-bursts.- 491.9MHz
low_freqDiffers between sub-bursts.- 436.0MHz
high_freqDiffers between sub-bursts.- 554.8MHz
sp_idxDiffers between sub-bursts.- 65.39± 7.49
sp_runDiffers between sub-bursts.- -158.53± 18.22
Exposure and fluence thresholds
exp_up- 115.78± 64.16hour
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- 1929657.034
dof- 1930381
flag_frac- 0.273