FRB 20230306D
A burst from FRB20190208A
- Repeater
- FRB20190208A
- Event ID
- 274686183
- Arrival, 400 MHz
- 2023-03-06 16:00:42.805 UTC
- Right ascension
- 285.145°
- Declination
- 46.951°
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 | 60009.66716209621 | 60009.66716215074 |
| Arrival time, infinite frequencyMJD | 60009.666988256635 | 60009.666988311175 |
| Width (fitburst)s | 0.000768 | 0.000797 |
| Peak frequencyMHz | 713.4 | 677.1 |
| Lowest frequencyMHz | 635.6 | 603.1 |
| Highest frequencyMHz | 800.2 | 760.1 |
| Spectral index | 199.77 | 180.99 |
| Spectral running | -172.79 | -172.11 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 285.145± 0.239degrees
dec- 46.951± 0.224degrees
gl- 77.11degrees
gb- 18.00degrees
Detection and dispersion
bonsai_snr- 12.5
snr_fitb- 23.8
bonsai_dm- 579.5pc cm⁻³
dm_fitb- 579.7269± 0.07873pc cm⁻³
dm_exc_ne2001- 504.4pc cm⁻³
dm_exc_ymw16- 509.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60009.66716209621± 1.60 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60009.666988256635± 2.85 × 10⁻⁸MJD
Burst shape
bc_width- 0.00295s
width_fitbDiffers between sub-bursts.- 0.000768± 0.0000523s
scat_time- 0.000000s
Flux and spectrum
flux- 0.61± 0.22Jy
fluence- 3.08± 0.76Jy ms
peak_freqDiffers between sub-bursts.- 713.4MHz
low_freqDiffers between sub-bursts.- 635.6MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 199.77± 23.52
sp_runDiffers between sub-bursts.- -172.79± 20.45
Exposure and fluence thresholds
exp_up- 111.95± 63.66hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.1Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 4.5Jy ms
Fit quality
chi_sq- 1014263.887
dof- 1014821
flag_frac- 0.245