FRB 20220822B
A burst from FRB20220529A
- Repeater
- FRB20220529A
- Event ID
- 241396257
- Arrival, 400 MHz
- 2022-08-22 11:15:39.740 UTC
- Right ascension
- 19.346°
- Declination
- 20.498°
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 | 59813.4692099201 | 59813.469209957 |
| Arrival time, infinite frequencyMJD | 59813.46913605049 | 59813.469136087384 |
| Width (fitburst)s | 0.000830 | 0.000555 |
| Peak frequencyMHz | 595.5 | 579.2 |
| Lowest frequencyMHz | 517.6 | 504.7 |
| Highest frequencyMHz | 685.0 | 664.6 |
| Spectral index | 93.27 | 89.91 |
| Spectral running | -117.35 | -121.60 |
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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 affected by miscellaneous system problems (e.g. data corruption or timing errors) and should be excluded from population studies.
Position
ra- 19.346± 0.232degrees
dec- 20.498± 0.280degrees
gl- 131.11degrees
gb- -41.96degrees
Detection and dispersion
bonsai_snr- 9.2
snr_fitb- 19.4
bonsai_dm- 249.9pc cm⁻³
dm_fitb- 246.3432± 0.05666pc cm⁻³
dm_exc_ne2001- 206.3pc cm⁻³
dm_exc_ymw16- 215.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59813.469209957± 9.13 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59813.469136087384± 1.93 × 10⁻⁸MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000555± 0.0000785s
scat_time- 0.000000s
Flux and spectrum
flux- 0.57± 0.34Jy
fluence- 1.56± 1.08Jy ms
peak_freqDiffers between sub-bursts.- 579.2MHz
low_freqDiffers between sub-bursts.- 504.7MHz
high_freqDiffers between sub-bursts.- 664.6MHz
sp_idxDiffers between sub-bursts.- 89.91± 35.60
sp_runDiffers between sub-bursts.- -121.60± 47.75
Exposure and fluence thresholds
exp_up- 78.35± 48.26hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 1768986.978
dof- 1769353
flag_frac- 0.333