FRB 20220907A
One-off burst
- Event ID
- 244007628
- Arrival, 400 MHz
- 2022-09-07 09:31:09.803 UTC
- Right ascension
- 7.930°
- Declination
- 53.956°
How the sub-bursts differ
This burst has 3 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 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59829.39664123701 | 59829.39664146997 | 59829.39664166631 |
| Arrival time, infinite frequencyMJD | 59829.396269243596 | 59829.39626947656 | 59829.3962696729 |
| Width (fitburst)s | 0.003689 | 0.005831 | 0.003621 |
| Peak frequencyMHz | 512.6 | 472.3 | 453.2 |
| Lowest frequencyMHz | 461.0 | 422.2 | 408.7 |
| Highest frequencyMHz | 570.0 | 528.4 | 502.6 |
| Spectral index | 101.18 | 60.58 | 53.53 |
| Spectral running | -204.34 | -182.80 | -215.11 |
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Position
ra- 7.930± 0.164degrees
dec- 53.956± 0.057degrees
gl- 120.00degrees
gb- -8.80degrees
Detection and dispersion
bonsai_snr- 19.4
snr_fitb- 47.2
bonsai_dm- 1238.2pc cm⁻³
dm_fitb- 1240.5379± 0.10045pc cm⁻³
dm_exc_ne2001- 1094.9pc cm⁻³
dm_exc_ymw16- 1083.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59829.39664123701± 1.20 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59829.396269243596± 3.24 × 10⁻⁸MJD
Burst shape
bc_width- 0.00983s
width_fitbDiffers between sub-bursts.- 0.003689± 0.0001177s
scat_time- 0.000000s
Flux and spectrum
flux- 0.53± 0.26Jy
fluence- 6.96± 2.60Jy ms
peak_freqDiffers between sub-bursts.- 512.6MHz
low_freqDiffers between sub-bursts.- 461.0MHz
high_freqDiffers between sub-bursts.- 570.0MHz
sp_idxDiffers between sub-bursts.- 101.18± 6.95
sp_runDiffers between sub-bursts.- -204.34± 13.94
Exposure and fluence thresholds
exp_up- 153.38± 64.70hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.5Jy ms
low_ft_95- —
up_ft_95- 4.4Jy ms
Fit quality
chi_sq- 1823030.383
dof- 1825238
flag_frac- 0.312