FRB 20201023B
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 139459007
- Arrival, 400 MHz
- 2020-10-23 07:48:30.778 UTC
- Right ascension
- 29.252°
- Declination
- 65.727°
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 | 59145.32535608867 | 59145.32535622757 |
| Arrival time, infinite frequencyMJD | 59145.32525131712 | 59145.325251456015 |
| Width (fitburst)s | 0.002766 | 0.002139 |
| Peak frequencyMHz | 636.4 | 439.0 |
| Lowest frequencyMHz | 568.9 | 400.2 |
| Highest frequencyMHz | 712.0 | 509.3 |
| Spectral index | 169.59 | 19.32 |
| Spectral running | -182.79 | -104.42 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period affected by miscellaneous system problems (e.g. data corruption or timing errors) and should be excluded from population studies.
Position
ra- 29.252± 0.215degrees
dec- 65.727± 0.229degrees
gl- 129.61degrees
gb- 3.71degrees
Detection and dispersion
bonsai_snr- 11.6
snr_fitb- 15.6
bonsai_dm- 350.6pc cm⁻³
dm_fitb- 349.3962± 0.20366pc cm⁻³
dm_exc_ne2001- 150.4pc cm⁻³
dm_exc_ymw16- 25.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59145.32535622757± 1.07 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59145.325251456015± 6.20 × 10⁻⁸MJD
Burst shape
bc_width- 0.02261s
width_fitbDiffers between sub-bursts.- 0.002139± 0.0002622s
scat_time- 0.000000s
Flux and spectrum
flux- 0.27± 0.17Jy
fluence- 3.76± 1.27Jy ms
peak_freqDiffers between sub-bursts.- 439.0MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 509.3MHz
sp_idxDiffers between sub-bursts.- 19.32± 6.89
sp_runDiffers between sub-bursts.- -104.42± 32.11
Exposure and fluence thresholds
exp_up- 186.76± 108.16hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 4.5Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 10.0Jy ms
Fit quality
chi_sq- 2023461.995
dof- 2023693
flag_frac- 0.238