FRB 20181224E
One-off burst
- Arrival, 400 MHz
- 2018-12-24 17:45:05.337 UTC
- Right ascension
- 239.320°
- Declination
- 7.320°
How the sub-bursts differ
This burst has 2 sub-bursts. These 6 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 | 58476.7396450374 | 58476.7396451009 |
| Arrival time, infinite frequencyMJD | 58476.7394705601 | 58476.7394706235 |
| Width (fitburst)s | 0.001056 | 0.001020 |
| Highest frequencyMHz | 729.5 | 800.2 |
| Spectral index | -1.18 | -3.70 |
| Spectral running | -4.40 | 3.60 |
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Position
ra- 239.320± 0.034degrees
dec- 7.320± 0.200degrees
gl- 17.52degrees
gb- 41.77degrees
Detection and dispersion
bonsai_snr- 32.4
snr_fitb- 42.1
bonsai_dm- 580.7pc cm⁻³
dm_fitb- 581.8537± 0.00410pc cm⁻³
dm_exc_ne2001- 545.3pc cm⁻³
dm_exc_ymw16- 549.3pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58476.7396451009± 6.50 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58476.7394706235± 6.60 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.001020± 0.0001800s
scat_time- <0.0011s
Flux and spectrum
flux- 3.60± 2.00Jy
fluence- 10.30± 4.90Jy ms
peak_freq- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- -3.70± 2.10
sp_runDiffers between sub-bursts.- 3.60± 3.20
Exposure and fluence thresholds
exp_up- 15.40± 3.60hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 2.9Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 5.5Jy ms
Fit quality
chi_sq- 410322.544
dof- 404917
flag_frac- 0.350