FRB 20220627D
One-off burst
- Event ID
- 232641715
- Arrival, 400 MHz
- 2022-06-27 01:21:11.480 UTC
- Right ascension
- 175.142°
- Declination
- 59.964°
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 | 59757.056382871175 | 59757.056383030635 |
| Arrival time, infinite frequencyMJD | 59757.05626838176 | 59757.05626854122 |
| Width (fitburst)s | 0.000491 | 0.000649 |
| Peak frequencyMHz | 560.4 | 544.6 |
| Lowest frequencyMHz | 486.4 | 504.8 |
| Highest frequencyMHz | 645.7 | 587.5 |
| Spectral index | 77.34 | 246.67 |
| Spectral running | -114.84 | -400.31 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 175.142± 0.028degrees
dec- 59.964± 0.188degrees
gl- 138.33degrees
gb- 54.99degrees
Detection and dispersion
bonsai_snr- 12.8
snr_fitb- 24.0
bonsai_dm- 381.3pc cm⁻³
dm_fitb- 381.8037± 0.04366pc cm⁻³
dm_exc_ne2001- 348.2pc cm⁻³
dm_exc_ymw16- 357.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59757.056382871175± 6.55 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59757.05626838176± 1.46 × 10⁻⁸MJD
Burst shape
bc_width- 0.00295s
width_fitbDiffers between sub-bursts.- 0.000491± 0.0000661s
scat_time- 0.005617± 0.0009438s
Flux and spectrum
flux- 0.54± 0.18Jy
fluence- 1.65± 0.61Jy ms
peak_freqDiffers between sub-bursts.- 560.4MHz
low_freqDiffers between sub-bursts.- 486.4MHz
high_freqDiffers between sub-bursts.- 645.7MHz
sp_idxDiffers between sub-bursts.- 77.34± 10.87
sp_runDiffers between sub-bursts.- -114.84± 15.71
Exposure and fluence thresholds
exp_up- 151.65± 79.85hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.4Jy ms
low_ft_95- —
up_ft_95- 2.5Jy ms
Fit quality
chi_sq- 1814959.228
dof- 1815522
flag_frac- 0.316