FRB 20201228A
A burst from FRB20190804E
- Repeater
- FRB20190804E
- Event ID
- 149540279
- Arrival, 400 MHz
- 2020-12-28 18:52:36.314 UTC
- Right ascension
- 261.099°
- Declination
- 55.056°
How the sub-bursts differ
This burst has 3 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 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59211.786531332524 | 59211.7865314088 | 59211.78653150737 |
| Arrival time, infinite frequencyMJD | 59211.78642246465 | 59211.78642254092 | 59211.786422639496 |
| Width (fitburst)s | 0.001537 | 0.002940 | 0.000411 |
| Peak frequencyMHz | 595.2 | 543.5 | 486.6 |
| Lowest frequencyMHz | 533.9 | 469.5 | 427.0 |
| Highest frequencyMHz | 663.5 | 629.2 | 554.6 |
| Spectral index | 154.77 | 65.74 | 52.65 |
| Spectral running | -194.97 | -107.41 | -134.65 |
Loading
Loading
Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 261.099± 0.173degrees
dec- 55.056± 0.066degrees
gl- 82.88degrees
gb- 34.25degrees
Detection and dispersion
bonsai_snr- 24.8
snr_fitb- 48.7
bonsai_dm- 362.7pc cm⁻³
dm_fitb- 363.0568± 0.01822pc cm⁻³
dm_exc_ne2001- 319.8pc cm⁻³
dm_exc_ymw16- 326.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59211.7865314088± 4.15 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59211.78642254092± 6.86 × 10⁻⁹MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.002940± 0.0002610s
scat_time- 0.003221± 0.0001977s
Flux and spectrum
flux- 0.53± 0.14Jy
fluence- 5.39± 0.73Jy ms
peak_freqDiffers between sub-bursts.- 543.5MHz
low_freqDiffers between sub-bursts.- 469.5MHz
high_freqDiffers between sub-bursts.- 629.2MHz
sp_idxDiffers between sub-bursts.- 65.74± 10.67
sp_runDiffers between sub-bursts.- -107.41± 16.93
Exposure and fluence thresholds
exp_up- 137.10± 70.40hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.4Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 5.1Jy ms
Fit quality
chi_sq- 831155.424
dof- 833511
flag_frac- 0.179