FRB 20190208A
A burst from FRB20190208A
- Previous name
- 190208.J1855+46
- Repeater
- FRB20190208A
- Arrival, 400 MHz
- 2019-02-08 17:41:50.691 UTC
- Right ascension
- 283.520°
- Declination
- 46.960°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 58522.7373920932 | 58522.7373921948 | 58522.7373922547 | 58522.737392318 |
| Arrival time, infinite frequencyMJD | 58522.7372182188 | 58522.7372183204 | 58522.7372183803 | 58522.737218444 |
| Width (fitburst)s | 0.000760 | 0.000410 | 0.000380 | 0.006790 |
| Peak frequencyMHz | 602.7 | 557.8 | 535.9 | 463.2 |
| Lowest frequencyMHz | 494.1 | 484.3 | 468.4 | 400.2 |
| Highest frequencyMHz | 735.1 | 642.5 | 613.2 | 538.7 |
| Spectral index | 48.00 | 77.00 | 74.00 | 29.60 |
| Spectral running | -58.00 | -115.00 | -127.00 | -101.00 |
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Position
ra- 283.520± 0.150degrees
dec- 46.960± 0.220degrees
gl- 76.71degrees
gb- 19.04degrees
Detection and dispersion
bonsai_snr- 12.2
snr_fitb- 31.2
bonsai_dm- 579.1pc cm⁻³
dm_fitb- 579.8430± 0.01200pc cm⁻³
dm_exc_ne2001- 508.4pc cm⁻³
dm_exc_ymw16- 514.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58522.7373922547± 3.10 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58522.7372183803± 4.70 × 10⁻⁹MJD
Burst shape
bc_width- 0.03342s
width_fitbDiffers between sub-bursts.- 0.000380± 0.0002300s
scat_time- 0.001220± 0.0002700s
Flux and spectrum
flux- 0.39± 0.27Jy
fluence- 4.90± 2.90Jy ms
peak_freqDiffers between sub-bursts.- 535.9MHz
low_freqDiffers between sub-bursts.- 468.4MHz
high_freqDiffers between sub-bursts.- 613.2MHz
sp_idxDiffers between sub-bursts.- 74.00± 14.00
sp_runDiffers between sub-bursts.- -127.00± 22.00
Exposure and fluence thresholds
exp_up- 17.40± 9.50hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 3.6Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 8.0Jy ms
Fit quality
chi_sq- 1363946.463
dof- 1357034
flag_frac- 0.273