FRB 20200302B
One-off burst
- Event ID
- 75265735
- Arrival, 400 MHz
- 2020-03-02 16:00:10.387 UTC
- Right ascension
- 279.588°
- Declination
- 60.222°
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 | 58910.666786860376 | 58910.66678689185 |
| Arrival time, infinite frequencyMJD | 58910.66669311547 | 58910.66669314694 |
| Width (fitburst)s | 0.000270 | 0.000986 |
| Peak frequencyMHz | 410.2 | 409.4 |
| Highest frequencyMHz | 451.3 | 457.8 |
| Spectral index | 12.45 | 8.38 |
| Spectral running | -252.43 | -184.47 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 279.588± 0.212degrees
dec- 60.222± 0.196degrees
gl- 89.80degrees
gb- 24.90degrees
Detection and dispersion
bonsai_snr- 19.3
snr_fitb- 40.1
bonsai_dm- 312.2pc cm⁻³
dm_fitb- 312.6241± 0.00978pc cm⁻³
dm_exc_ne2001- 256.7pc cm⁻³
dm_exc_ymw16- 261.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58910.66678689185± 5.49 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58910.66669314694± 2.98 × 10⁻⁹MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000986± 0.0000431s
scat_time- 0.000000s
Flux and spectrum
flux- 0.64± 0.24Jy
fluence- 3.00± 0.81Jy ms
peak_freqDiffers between sub-bursts.- 409.4MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 457.8MHz
sp_idxDiffers between sub-bursts.- 8.38± 3.85
sp_runDiffers between sub-bursts.- -184.47± 34.92
Exposure and fluence thresholds
exp_up- 162.49± 86.06hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 0.8Jy ms
low_ft_95- —
up_ft_95- 1.4Jy ms
Fit quality
chi_sq- 2183124.687
dof- 2184721
flag_frac- 0.177