FRB 20210208B
A burst from FRB20200809E
- Repeater
- FRB20200809E
- Event ID
- 156747973
- Arrival, 400 MHz
- 2021-02-08 00:03:28.581 UTC
- Right ascension
- 18.641°
- Declination
- 82.905°
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 | 59253.002414132985 | 59253.00241423634 | 59253.00241430602 |
| Arrival time, infinite frequencyMJD | 59253.001903359655 | 59253.00190346301 | 59253.00190353269 |
| Width (fitburst)s | 0.002141 | 0.000958 | 0.002135 |
| Peak frequencyMHz | 661.0 | 588.6 | 527.0 |
| Lowest frequencyMHz | 596.4 | 537.9 | 446.1 |
| Highest frequencyMHz | 732.8 | 644.2 | 622.5 |
| Spectral index | 217.75 | 218.46 | 45.67 |
| Spectral running | -216.94 | -283.08 | -82.97 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 18.641± 0.183degrees
dec- 82.905± 0.220degrees
gl- 123.69degrees
gb- 20.07degrees
Detection and dispersion
bonsai_snr- 20.4
snr_fitb- 34.0
bonsai_dm- 1704.0pc cm⁻³
dm_fitb- 1703.3465± 0.06576pc cm⁻³
dm_exc_ne2001- 1630.7pc cm⁻³
dm_exc_ymw16- 1622.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59253.002414132985± 1.27 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59253.001903359655± 2.35 × 10⁻⁸MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.002141± 0.0002417s
scat_time- 0.000000s
Flux and spectrum
flux- 0.56± 0.22Jy
fluence- 6.60± 1.34Jy ms
peak_freqDiffers between sub-bursts.- 661.0MHz
low_freqDiffers between sub-bursts.- 596.4MHz
high_freqDiffers between sub-bursts.- 732.8MHz
sp_idxDiffers between sub-bursts.- 217.75± 34.86
sp_runDiffers between sub-bursts.- -216.94± 34.21
Exposure and fluence thresholds
exp_up- 532.80± 325.59hour
exp_low- 500.79± 325.85hour
low_ft_68- 3.7Jy ms
up_ft_68- 1.7Jy ms
low_ft_95- 7.4Jy ms
up_ft_95- 3.2Jy ms
Fit quality
chi_sq- 2059160.343
dof- 2060300
flag_frac- 0.224