FRB 20230802A
One-off burst
- Event ID
- 307424887
- Arrival, 400 MHz
- 2023-08-02 09:56:24.965 UTC
- Right ascension
- 339.361°
- Declination
- 30.811°
How the sub-bursts differ
This burst has 3 sub-bursts. These 7 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 | 60158.41417774623 | 60158.41417778909 | 60158.41417783116 |
| Arrival time, infinite frequencyMJD | 60158.414086123266 | 60158.41408616613 | 60158.4140862082 |
| Width (fitburst)s | 0.000868 | 0.001051 | 0.001049 |
| Peak frequencyMHz | 415.0 | 520.8 | 400.2 |
| Highest frequencyMHz | 645.1 | 800.2 | 594.5 |
| Spectral index | 0.86 | 5.77 | -0.17 |
| Spectral running | -11.83 | -10.95 | -14.28 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period when real-time grouping/classification (L2/L3) was non-functional and should be excluded from population studies.
Position
ra- 339.361± 0.037degrees
dec- 30.811± 0.038degrees
gl- 91.72degrees
gb- -23.82degrees
Detection and dispersion
bonsai_snr- 64.2
snr_fitb- 135.7
bonsai_dm- 305.3pc cm⁻³
dm_fitb- 305.5478± 0.00304pc cm⁻³
dm_exc_ne2001- 247.1pc cm⁻³
dm_exc_ymw16- 255.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60158.41417783116± 7.40 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 60158.4140862082± 1.18 × 10⁻⁹MJD
Burst shape
bc_width- 0.00786s
width_fitbDiffers between sub-bursts.- 0.001049± 0.0000619s
scat_time- 0.000000s
Flux and spectrum
flux- 5.04± 0.91Jy
fluence- 28.33± 4.48Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 594.5MHz
sp_idxDiffers between sub-bursts.- -0.17± 1.40
sp_runDiffers between sub-bursts.- -14.28± 4.99
Exposure and fluence thresholds
exp_up- 78.97± 34.22hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.9Jy ms
low_ft_95- —
up_ft_95- 4.9Jy ms
Fit quality
chi_sq- 1692799.982
dof- 1711190
flag_frac- 0.355