FRB 20190421A
A burst from FRB20190303A
- Previous name
- 190303.J1353+48
- Repeater
- FRB20190303A
- Arrival, 400 MHz
- 2019-04-21 08:00:10.369 UTC
- Right ascension
- 208.030°
- Declination
- 48.240°
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 | 58594.3334531616 | 58594.3334533453 |
| Arrival time, infinite frequencyMJD | 58594.3333860996 | 58594.3333862834 |
| Width (fitburst)s | 0.003140 | 0.003460 |
| Peak frequencyMHz | 633.4 | 585.3 |
| Lowest frequencyMHz | 527.2 | 485.6 |
| Highest frequencyMHz | 761.0 | 705.4 |
| Spectral index | 63.00 | 50.20 |
| Spectral running | -68.00 | -66.00 |
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Position
ra- 208.030± 0.130degrees
dec- 48.240± 0.220degrees
gl- 97.75degrees
gb- 65.81degrees
Detection and dispersion
bonsai_snr- 12.3
snr_fitb- 23.2
bonsai_dm- 226.4pc cm⁻³
dm_fitb- 223.6410± 0.01500pc cm⁻³
dm_exc_ne2001- 193.8pc cm⁻³
dm_exc_ymw16- 201.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58594.3334533453± 7.90 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58594.3333862834± 9.10 × 10⁻⁹MJD
Burst shape
bc_width- 0.03047s
width_fitbDiffers between sub-bursts.- 0.003460± 0.0004400s
scat_time- <0.0038s
Flux and spectrum
flux- 0.38± 0.19Jy
fluence- 5.30± 1.30Jy ms
peak_freqDiffers between sub-bursts.- 585.3MHz
low_freqDiffers between sub-bursts.- 485.6MHz
high_freqDiffers between sub-bursts.- 705.4MHz
sp_idxDiffers between sub-bursts.- 50.20± 8.70
sp_runDiffers between sub-bursts.- -66.00± 11.00
Exposure and fluence thresholds
exp_up- 18.00± 9.40hour
exp_low- —
low_ft_68- 0.0Jy ms
up_ft_68- 5.1Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 10.6Jy ms
Fit quality
chi_sq- 777716.309
dof- 775797
flag_frac- 0.377