FRB 20221109E
One-off burst
- Event ID
- 251474278
- Arrival, 400 MHz
- 2022-11-09 10:22:18.604 UTC
- Right ascension
- 81.814°
- Declination
- 24.166°
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 | 59892.43215974243 | 59892.432159772005 | 59892.43215979239 |
| Arrival time, infinite frequencyMJD | 59892.432088825284 | 59892.43208885486 | 59892.43208887525 |
| Width (fitburst)s | 0.000553 | 0.000210 | 0.000231 |
| Peak frequencyMHz | 400.2 | 452.1 | 560.3 |
| Highest frequencyMHz | 625.8 | 537.6 | 800.2 |
| Spectral index | -4.06 | 18.70 | 6.26 |
| Spectral running | -2.44 | -76.71 | -9.29 |
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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 on a day with low sensitivity - identified via pulsar-based monitoring of system noise - and should be excluded from population studies.
Position
ra- 81.814± 0.157degrees
dec- 24.166± 0.058degrees
gl- 181.83degrees
gb- -6.02degrees
Detection and dispersion
bonsai_snr- 64.9
snr_fitb- 322.7
bonsai_dm- 236.6pc cm⁻³
dm_fitb- 236.4972± 0.00032pc cm⁻³
dm_exc_ne2001- 77.8pc cm⁻³
dm_exc_ymw16- 0.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59892.432159772005± 3.31 × 10⁻¹¹MJD
mjd_infDiffers between sub-bursts.- 59892.43208885486± 1.02 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.000210± 0.0000019s
scat_time- 0.000610± 0.0000016s
Flux and spectrum
flux- 14.74± 4.55Jy
fluence- 54.29± 15.80Jy ms
peak_freqDiffers between sub-bursts.- 452.1MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 537.6MHz
sp_idxDiffers between sub-bursts.- 18.70± 0.45
sp_runDiffers between sub-bursts.- -76.71± 1.68
Exposure and fluence thresholds
exp_up- 105.01± 26.02hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 7.4Jy ms
low_ft_95- —
up_ft_95- 12.8Jy ms
Fit quality
chi_sq- 1768272.087
dof- 1872379
flag_frac- 0.295