FRB 20221216A
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 255679560
- Arrival, 400 MHz
- 2022-12-16 01:28:14.341 UTC
- Right ascension
- 347.460°
- Declination
- 48.804°
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 | 59929.06127709541 | 59929.06127720216 |
| Arrival time, infinite frequencyMJD | 59929.06121051802 | 59929.06121062477 |
| Width (fitburst)s | 0.005468 | 0.006965 |
| Peak frequencyMHz | 534.0 | 477.6 |
| Lowest frequencyMHz | 474.4 | 402.9 |
| Highest frequencyMHz | 601.2 | 566.1 |
| Spectral index | 94.59 | 28.15 |
| Spectral running | -163.92 | -79.65 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 347.460± 0.182degrees
dec- 48.804± 0.185degrees
gl- 106.22degrees
gb- -10.74degrees
Detection and dispersion
bonsai_snr- 19.1
snr_fitb- 36.0
bonsai_dm- 222.4pc cm⁻³
dm_fitb- 222.0248± 0.20077pc cm⁻³
dm_exc_ne2001- 96.2pc cm⁻³
dm_exc_ymw16- 99.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59929.06127709541± 2.67 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59929.06121051802± 6.59 × 10⁻⁸MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.005468± 0.0003320s
scat_time- 0.000000s
Flux and spectrum
flux- 0.66± 0.30Jy
fluence- 7.78± 1.59Jy ms
peak_freqDiffers between sub-bursts.- 534.0MHz
low_freqDiffers between sub-bursts.- 474.4MHz
high_freqDiffers between sub-bursts.- 601.2MHz
sp_idxDiffers between sub-bursts.- 94.59± 13.06
sp_runDiffers between sub-bursts.- -163.92± 21.08
Exposure and fluence thresholds
exp_up- 123.50± 61.26hour
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- 1919213.978
dof- 1920499
flag_frac- 0.276