FRB 20221212C
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 255080114
- Arrival, 400 MHz
- 2022-12-12 01:40:25.209 UTC
- Right ascension
- 345.362°
- Declination
- 48.801°
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 | 59925.06973622088 | 59925.06973669119 |
| Arrival time, infinite frequencyMJD | 59925.06966838284 | 59925.06966885315 |
| Width (fitburst)s | 0.008096 | 0.007675 |
| Peak frequencyMHz | 612.8 | 596.8 |
| Lowest frequencyMHz | 516.3 | 546.5 |
| Highest frequencyMHz | 727.5 | 651.8 |
| Spectral index | 66.73 | 236.91 |
| Spectral running | -78.30 | -296.39 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- Exposure. Event occurred during a period when the L4 metadata system was offline or misconfigured and should be excluded from population studies.
Position
ra- 345.362± 0.214degrees
dec- 48.801± 0.217degrees
gl- 104.93degrees
gb- -10.19degrees
Detection and dispersion
bonsai_snr- 12.5
snr_fitb- 25.7
bonsai_dm- 227.3pc cm⁻³
dm_fitb- 226.2289± 0.40099pc cm⁻³
dm_exc_ne2001- 94.5pc cm⁻³
dm_exc_ymw16- 97.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59925.06973622088± 6.98 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59925.06966838284± 1.39 × 10⁻⁷MJD
Burst shape
bc_width- 0.02654s
width_fitbDiffers between sub-bursts.- 0.008096± 0.0004386s
scat_time- 0.000000s
Flux and spectrum
flux- 0.70± 0.36Jy
fluence- 14.39± 4.39Jy ms
peak_freqDiffers between sub-bursts.- 612.8MHz
low_freqDiffers between sub-bursts.- 516.3MHz
high_freqDiffers between sub-bursts.- 727.5MHz
sp_idxDiffers between sub-bursts.- 66.73± 8.49
sp_runDiffers between sub-bursts.- -78.30± 9.90
Exposure and fluence thresholds
exp_up- 116.67± 64.29hour
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- 1886150.977
dof- 1886803
flag_frac- 0.289