FRB 20200204B
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 71784400
- Arrival, 400 MHz
- 2020-02-04 00:57:31.683 UTC
- Right ascension
- 28.992°
- Declination
- 65.728°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 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 | 58883.03995003219 | 58883.03995017113 |
| Arrival time, infinite frequencyMJD | 58883.03984525181 | 58883.03984539076 |
| Width (fitburst)s | 0.003263 | 0.003352 |
| Peak frequencyMHz | 415.3 | 414.4 |
| Highest frequencyMHz | 475.6 | 440.8 |
| Spectral index | 9.30 | 41.78 |
| Spectral running | -125.39 | -600.23 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 28.992± 0.213degrees
dec- 65.728± 0.227degrees
gl- 129.50degrees
gb- 3.68degrees
Detection and dispersion
bonsai_snr- 12.7
snr_fitb- 28.9
bonsai_dm- 346.1pc cm⁻³
dm_fitb- 349.4256± 0.13677pc cm⁻³
dm_exc_ne2001- 150.1pc cm⁻³
dm_exc_ymw16- 25.3pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58883.03995003219± 4.55 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58883.03984525181± 4.13 × 10⁻⁸MJD
Burst shape
bc_width- 0.02261s
width_fitbDiffers between sub-bursts.- 0.003263± 0.0002358s
scat_time- 0.000000s
Flux and spectrum
flux- 0.48± 0.26Jy
fluence- 5.63± 2.03Jy ms
peak_freqDiffers between sub-bursts.- 415.3MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 475.6MHz
sp_idxDiffers between sub-bursts.- 9.30± 3.85
sp_runDiffers between sub-bursts.- -125.39± 29.08
Exposure and fluence thresholds
exp_up- 186.31± 108.75hour
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- 2106784.287
dof- 2107609
flag_frac- 0.206