FRB 20221202A
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 253381736
- Arrival, 400 MHz
- 2022-12-02 01:49:49.949 UTC
- Right ascension
- 338.492°
- Declination
- 49.000°
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 | 59915.0762725537 | 59915.076272626626 |
| Arrival time, infinite frequencyMJD | 59915.07620679574 | 59915.07620686867 |
| Width (fitburst)s | 0.002886 | 0.000357 |
| Peak frequencyMHz | 677.5 | 673.2 |
| Lowest frequencyMHz | 654.3 | 643.0 |
| Highest frequencyMHz | 701.4 | 704.8 |
| Spectral index | 2004.69 | 1134.42 |
| Spectral running | -1904.14 | -1090.63 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 338.492± 0.212degrees
dec- 49.000± 0.044degrees
gl- 100.97degrees
gb- -7.92degrees
Detection and dispersion
bonsai_snr- 9.6
snr_fitb- 19.1
bonsai_dm- 220.4pc cm⁻³
dm_fitb- 219.2922± 0.19062pc cm⁻³
dm_exc_ne2001- 57.2pc cm⁻³
dm_exc_ymw16- 60.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59915.0762725537± 3.70 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59915.07620679574± 6.81 × 10⁻⁸MJD
Burst shape
bc_width- 0.00983s
width_fitbDiffers between sub-bursts.- 0.002886± 0.0005896s
scat_time- 0.005753± 0.0010672s
Flux and spectrum
flux- 0.43± 0.29Jy
fluence- 2.38± 0.98Jy ms
peak_freqDiffers between sub-bursts.- 677.5MHz
low_freqDiffers between sub-bursts.- 654.3MHz
high_freqDiffers between sub-bursts.- 701.4MHz
sp_idxDiffers between sub-bursts.- 2004.69± 620.74
sp_runDiffers between sub-bursts.- -1904.14± 589.85
Exposure and fluence thresholds
exp_up- 49.59± 53.03hour
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- 1932779.993
dof- 1933134
flag_frac- 0.272