FRB 20190131D
One-off burst
- Arrival, 400 MHz
- 2019-01-31 03:07:30.769 UTC
- Right ascension
- 57.460°
- Declination
- 22.750°
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 | 58514.1302171368 | 58514.1302172352 |
| Arrival time, infinite frequencyMJD | 58514.1300245872 | 58514.1300246857 |
| Width (fitburst)s | <0.00017 | 0.000348 |
| Peak frequencyMHz | 508.7 | 585.1 |
| Spectral index | 1.61 | 5.30 |
| Spectral running | -3.35 | -6.90 |
Loading
Loading
Position
ra- 57.460± 0.160degrees
dec- 22.750± 0.180degrees
gl- 168.11degrees
gb- -24.08degrees
Detection and dispersion
bonsai_snr- 18.7
snr_fitb- 48.9
bonsai_dm- 642.1pc cm⁻³
dm_fitb- 642.1218± 0.00120pc cm⁻³
dm_exc_ne2001- 574.6pc cm⁻³
dm_exc_ymw16- 569.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58514.1302172352± 9.30 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58514.1300246857± 9.30 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000348± 0.0000720s
scat_time- 0.000426± 0.0000310s
Flux and spectrum
flux- 2.90± 1.60Jy
fluence- 6.80± 3.70Jy ms
peak_freqDiffers between sub-bursts.- 585.1MHz
low_freq- 400.2MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 5.30± 1.70
sp_runDiffers between sub-bursts.- -6.90± 2.10
Exposure and fluence thresholds
exp_up- 15.00± 5.80hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 4.2Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.9Jy ms
Fit quality
chi_sq- 424385.421
dof- 418900
flag_frac- 0.327