FRB 20230414D
One-off burst
- Event ID
- 283062477
- Arrival, 400 MHz
- 2023-04-14 23:28:10.366 UTC
- Right ascension
- 71.465°
- Declination
- 84.386°
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 | 60048.977897712844 | 60048.977897758006 |
| Arrival time, infinite frequencyMJD | 60048.977814070786 | 60048.97781411595 |
| Width (fitburst)s | 0.000718 | 0.000869 |
| Peak frequencyMHz | 501.9 | 501.4 |
| Lowest frequencyMHz | 417.1 | 404.0 |
| Highest frequencyMHz | 603.8 | 622.3 |
| Spectral index | 30.46 | 22.24 |
| Spectral running | -67.27 | -49.33 |
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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 the L4 metadata system was offline or misconfigured and should be excluded from population studies.
- Flux and fluence. Flux/fluence could not be determined due to an unspecified computational failure in the fluence pipeline.
Position
ra- 71.465± 0.037degrees
dec- 84.386± 0.220degrees
gl- 128.18degrees
gb- 24.11degrees
Detection and dispersion
bonsai_snr- 14.8
snr_fitb- 25.7
bonsai_dm- 278.6pc cm⁻³
dm_fitb- 278.9327± 0.01905pc cm⁻³
dm_exc_ne2001- 216.6pc cm⁻³
dm_exc_ymw16- 215.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60048.977897758006± 2.64 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60048.97781411595± 6.29 × 10⁻⁹MJD
Burst shape
bc_width- 0.00983s
width_fitbDiffers between sub-bursts.- 0.000869± 0.0001134s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 501.4MHz
low_freqDiffers between sub-bursts.- 404.0MHz
high_freqDiffers between sub-bursts.- 622.3MHz
sp_idxDiffers between sub-bursts.- 22.24± 6.73
sp_runDiffers between sub-bursts.- -49.33± 14.14
Exposure and fluence thresholds
exp_up- 700.86± 375.78hour
exp_low- 811.15± 380.37hour
low_ft_68- —
up_ft_68- —
low_ft_95- —
up_ft_95- —
Fit quality
chi_sq- 1676201.062
dof- 1676851
flag_frac- 0.368