FRB 20190104A
One-off burst
- Arrival, 400 MHz
- 2019-01-04 05:49:34.167 UTC
- Right ascension
- 70.500°
- Declination
- 35.590°
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 | 58487.24275656227 | 58487.2427566577 |
| Arrival time, infinite frequencyMJD | 58487.2425918068 | 58487.2425919022 |
| Width (fitburst)s | 0.000197 | 0.000800 |
| Peak frequencyMHz | 531.9 | 400.2 |
| Spectral index | 6.00 | -1.60 |
| Spectral running | -10.50 | 1.30 |
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Position
ra- 70.500± 0.200degrees
dec- 35.590± 0.200degrees
gl- 166.73degrees
gb- -7.01degrees
Detection and dispersion
bonsai_snr- 17.2
snr_fitb- 24.4
bonsai_dm- 548.3pc cm⁻³
dm_fitb- 549.4329± 0.00290pc cm⁻³
dm_exc_ne2001- 397.9pc cm⁻³
dm_exc_ymw16- 346.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58487.24275656227± 7.80 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58487.2425918068± 1.20 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000197± 0.0000660s
scat_time- 0.000155± 0.0000420s
Flux and spectrum
flux- 1.45± 0.79Jy
fluence- 3.90± 1.90Jy ms
peak_freqDiffers between sub-bursts.- 531.9MHz
low_freq- 400.2MHz
high_freq- 800.2MHz
sp_idxDiffers between sub-bursts.- 6.00± 1.20
sp_runDiffers between sub-bursts.- -10.50± 1.70
Exposure and fluence thresholds
exp_up- 15.10± 8.00hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 4.1Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 439260.771
dof- 435316
flag_frac- 0.301