FRB 20190501B
One-off burst
- Arrival, 400 MHz
- 2019-05-01 10:53:49.290 UTC
- Right ascension
- 261.450°
- Declination
- 54.360°
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 | 58604.4540427093 | 58604.4540427448 |
| Arrival time, infinite frequencyMJD | 58604.4538075949 | 58604.4538076304 |
| Width (fitburst)s | 0.000932 | 0.000840 |
| Highest frequencyMHz | 714.8 | 800.2 |
| Spectral index | -0.03 | -1.20 |
| Spectral running | -6.80 | -1.00 |
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Position
ra- 261.450± 0.190degrees
dec- 54.360± 0.180degrees
gl- 82.03degrees
gb- 34.05degrees
Detection and dispersion
bonsai_snr- 24.3
snr_fitb- 29.8
bonsai_dm- 784.5pc cm⁻³
dm_fitb- 784.0680± 0.01100pc cm⁻³
dm_exc_ne2001- 740.5pc cm⁻³
dm_exc_ymw16- 747.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58604.4540427093± 1.50 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58604.4538075949± 3.70 × 10⁻⁹MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.000932± 0.0000650s
scat_time- <0.0011s
Flux and spectrum
flux- 0.88± 0.21Jy
fluence- 3.20± 0.55Jy ms
peak_freq- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 714.8MHz
sp_idxDiffers between sub-bursts.- -0.03± 0.94
sp_runDiffers between sub-bursts.- -6.80± 2.00
Exposure and fluence thresholds
exp_up- 20.00± 12.00hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 1.4Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 2.2Jy ms
Fit quality
chi_sq- 347549.483
dof- 347765
flag_frac- 0.441