FRB 20230502E
One-off burst
- Event ID
- 287055484
- Arrival, 400 MHz
- 2023-05-02 18:34:04.006 UTC
- Right ascension
- 18.375°
- Declination
- 28.181°
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 | 60066.77365730253 | 60066.77365739344 | 60066.77365747845 |
| Arrival time, infinite frequencyMJD | 60066.77350523303 | 60066.77350532394 | 60066.77350540895 |
| Width (fitburst)s | 0.001294 | 0.001757 | 0.001654 |
| Peak frequencyMHz | 478.2 | 458.0 | 450.6 |
| Lowest frequencyMHz | 414.7 | 413.0 | 409.9 |
| Highest frequencyMHz | 551.6 | 508.0 | 495.3 |
| Spectral index | 40.31 | 58.06 | 60.99 |
| Spectral running | -113.14 | -215.00 | -256.98 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 18.375± 0.049degrees
dec- 28.181± 0.224degrees
gl- 128.83degrees
gb- -34.44degrees
Detection and dispersion
bonsai_snr- 11.2
snr_fitb- 26.3
bonsai_dm- 508.3pc cm⁻³
dm_fitb- 507.1272± 0.06388pc cm⁻³
dm_exc_ne2001- 460.9pc cm⁻³
dm_exc_ymw16- 469.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60066.77365747845± 4.37 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60066.77350540895± 1.96 × 10⁻⁸MJD
Burst shape
bc_width- 0.01966s
width_fitbDiffers between sub-bursts.- 0.001654± 0.0001572s
scat_time- 0.000000s
Flux and spectrum
flux- 0.44± 0.23Jy
fluence- 3.09± 0.92Jy ms
peak_freqDiffers between sub-bursts.- 450.6MHz
low_freqDiffers between sub-bursts.- 409.9MHz
high_freqDiffers between sub-bursts.- 495.3MHz
sp_idxDiffers between sub-bursts.- 60.99± 10.66
sp_runDiffers between sub-bursts.- -256.98± 42.54
Exposure and fluence thresholds
exp_up- 81.81± 47.65hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 1.9Jy ms
low_ft_95- —
up_ft_95- 3.4Jy ms
Fit quality
chi_sq- 1856149.929
dof- 1856828
flag_frac- 0.300