FRB 20221217C
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 255842221
- Arrival, 400 MHz
- 2022-12-17 01:27:56.432 UTC
- Right ascension
- 347.166°
- Declination
- 48.672°
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 | 59930.061069818694 | 59930.06107042099 |
| Arrival time, infinite frequencyMJD | 59930.06100360925 | 59930.06100421155 |
| Width (fitburst)s | 0.005684 | 0.005024 |
| Peak frequencyMHz | 444.1 | 427.6 |
| Lowest frequencyMHz | 400.9 | 400.2 |
| Highest frequencyMHz | 491.8 | 465.8 |
| Spectral index | 45.87 | 41.71 |
| Spectral running | -220.54 | -314.82 |
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Position
ra- 347.166± 0.192degrees
dec- 48.672± 0.065degrees
gl- 105.99degrees
gb- -10.79degrees
Detection and dispersion
bonsai_snr- 14.8
snr_fitb- 46.0
bonsai_dm- 221.6pc cm⁻³
dm_fitb- 220.7978± 0.18953pc cm⁻³
dm_exc_ne2001- 95.5pc cm⁻³
dm_exc_ymw16- 98.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59930.061069818694± 1.35 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59930.06100360925± 5.84 × 10⁻⁸MJD
Burst shape
bc_width- 0.07569s
width_fitbDiffers between sub-bursts.- 0.005684± 0.0006194s
scat_time- 0.010454± 0.0010977s
Flux and spectrum
flux- 0.47± 0.28Jy
fluence- 8.20± 2.00Jy ms
peak_freqDiffers between sub-bursts.- 444.1MHz
low_freqDiffers between sub-bursts.- 400.9MHz
high_freqDiffers between sub-bursts.- 491.8MHz
sp_idxDiffers between sub-bursts.- 45.87± 5.50
sp_runDiffers between sub-bursts.- -220.54± 26.03
Exposure and fluence thresholds
exp_up- 97.25± 69.60hour
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- 3821861.638
dof- 3823968
flag_frac- 0.284