FRB 20190421A
A burst from FRB20190303A
- Previous name
- 190303.J1353+48
- Repeater
- FRB20190303A
- Event ID
- 37451017
- Arrival, 400 MHz
- 2019-04-21 08:00:10.360 UTC
- Right ascension
- 208.113°
- Declination
- 48.247°
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 | 58594.33345304802 | 58594.333453235966 |
| Arrival time, infinite frequencyMJD | 58594.333386179525 | 58594.33338636748 |
| Width (fitburst)s | 0.002952 | 0.003309 |
| Peak frequencyMHz | 640.6 | 579.1 |
| Lowest frequencyMHz | 595.8 | 474.6 |
| Highest frequencyMHz | 688.9 | 706.6 |
| Spectral index | 410.71 | 42.97 |
| Spectral running | -436.45 | -58.15 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 208.113± 0.232degrees
dec- 48.247± 0.222degrees
gl- 97.65degrees
gb- 65.78degrees
Detection and dispersion
bonsai_snr- 12.3
snr_fitb- 24.1
bonsai_dm- 226.4pc cm⁻³
dm_fitb- 222.9956± 0.17176pc cm⁻³
dm_exc_ne2001- 193.6pc cm⁻³
dm_exc_ymw16- 201.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58594.333453235966± 2.81 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58594.33338636748± 5.86 × 10⁻⁸MJD
Burst shape
bc_width- 0.02556s
width_fitbDiffers between sub-bursts.- 0.003309± 0.0003045s
scat_time- 0.000000s
Flux and spectrum
flux- 0.40± 0.17Jy
fluence- 4.49± 1.03Jy ms
peak_freqDiffers between sub-bursts.- 579.1MHz
low_freqDiffers between sub-bursts.- 474.6MHz
high_freqDiffers between sub-bursts.- 706.6MHz
sp_idxDiffers between sub-bursts.- 42.97± 6.83
sp_runDiffers between sub-bursts.- -58.15± 8.91
Exposure and fluence thresholds
exp_up- 105.67± 60.52hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.5Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 9.3Jy ms
Fit quality
chi_sq- 2005626.651
dof- 2006197
flag_frac- 0.244