FRB 20200117B
One-off burst
- Event ID
- 69152360
- Arrival, 400 MHz
- 2020-01-17 16:28:24.570 UTC
- Right ascension
- 243.076°
- Declination
- 63.614°
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 | 58865.68639546528 | 58865.68639548092 |
| Arrival time, infinite frequencyMJD | 58865.68623714853 | 58865.68623716418 |
| Width (fitburst)s | 0.000042 | 0.002420 |
| Peak frequencyMHz | 549.5 | 400.2 |
| Lowest frequencyMHz | 459.2 | 400.2 |
| Highest frequencyMHz | 657.5 | 653.9 |
| Spectral index | 45.28 | -0.81 |
| Spectral running | -71.42 | -7.89 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 243.076± 0.142degrees
dec- 63.614± 0.029degrees
gl- 95.84degrees
gb- 41.42degrees
Detection and dispersion
bonsai_snr- 44.7
snr_fitb- 56.7
bonsai_dm- 527.3pc cm⁻³
dm_fitb- 527.9607± 0.00498pc cm⁻³
dm_exc_ne2001- 489.8pc cm⁻³
dm_exc_ymw16- 496.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58865.68639548092± 2.16 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58865.68623716418± 2.62 × 10⁻⁹MJD
Burst shape
bc_width- 0.00688s
width_fitbDiffers between sub-bursts.- 0.002420± 0.0001272s
scat_time- 0.004678± 0.0003401s
Flux and spectrum
flux- 1.45± 0.63Jy
fluence- 9.87± 3.96Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 653.9MHz
sp_idxDiffers between sub-bursts.- -0.81± 0.87
sp_runDiffers between sub-bursts.- -7.89± 2.00
Exposure and fluence thresholds
exp_up- 128.55± 70.71hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.3Jy ms
low_ft_95- —
up_ft_95- 4.1Jy ms
Fit quality
chi_sq- 2152029.364
dof- 2155236
flag_frac- 0.188