FRB 20200428D
One-off burst
- Event ID
- 82373240
- Arrival, 400 MHz
- 2020-04-28 14:34:33.028 UTC
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 | 58967.60732671684 | 58967.60732705342 |
| Arrival time, infinite frequencyMJD | 58967.60722695359 | 58967.607227290166 |
| Width (fitburst)s | 0.000492 | 0.000358 |
| Peak frequencyMHz | 406.4 | 800.2 |
| Highest frequencyMHz | 564.3 | 800.2 |
| Spectral index | 0.65 | 1.66 |
| Spectral running | -21.35 | -0.57 |
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Notes
- This event was detected in the sidelobes of the CHIME primary beam.
- The pulse emission region was extended during fluence estimation.
- Localization. Localization not available for sidelobe events.
- Exposure. Exposure not available for sidelobe events.
- Flux and fluence. Flux and fluence not available for sidelobe events.
Position
ra- —
dec- —
gl- —
gb- —
Detection and dispersion
bonsai_snr- 44.9
snr_fitb- 271.0
bonsai_dm- 331.6pc cm⁻³
dm_fitb- 332.6943± 0.00147pc cm⁻³
dm_exc_ne2001- 223.9pc cm⁻³
dm_exc_ymw16- 248.2pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58967.60732671684± 1.55 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58967.60722695359± 4.66 × 10⁻¹⁰MJD
Burst shape
bc_width- 0.00393s
width_fitbDiffers between sub-bursts.- 0.000492± 0.0000097s
scat_time- 0.003983± 0.0000389s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 406.4MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 564.3MHz
sp_idxDiffers between sub-bursts.- 0.65± 0.18
sp_runDiffers between sub-bursts.- -21.35± 0.54
Exposure and fluence thresholds
exp_up- —
exp_low- —
low_ft_68- —
up_ft_68- —
low_ft_95- —
up_ft_95- —
Fit quality
chi_sq- 1679583.684
dof- 1752990
flag_frac- 0.340