FRB 20211120D
One-off burst
- Event ID
- 198376223
- Arrival, 400 MHz
- 2021-11-20 06:03:09.579 UTC
- Right ascension
- 30.845°
- Declination
- 30.657°
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 | 59538.25219412383 | 59538.25219420624 |
| Arrival time, infinite frequencyMJD | 59538.2518990292 | 59538.251899111616 |
| Width (fitburst)s | 0.000898 | 0.000647 |
| Peak frequencyMHz | 400.2 | 468.1 |
| Highest frequencyMHz | 723.9 | 715.1 |
| Spectral index | -5.85 | 4.02 |
| Spectral running | 3.32 | -12.82 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 30.845± 0.201degrees
dec- 30.657± 0.191degrees
gl- 140.74degrees
gb- -29.71degrees
Detection and dispersion
bonsai_snr- 29.1
snr_fitb- 41.2
bonsai_dm- 983.0pc cm⁻³
dm_fitb- 984.0929± 0.00399pc cm⁻³
dm_exc_ne2001- 930.7pc cm⁻³
dm_exc_ymw16- 937.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59538.25219420624± 3.95 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59538.251899111616± 1.26 × 10⁻⁹MJD
Burst shape
bc_width- 0.00295s
width_fitbDiffers between sub-bursts.- 0.000647± 0.0000134s
scat_time- 0.000000s
Flux and spectrum
flux- 1.27± 0.35Jy
fluence- 5.65± 1.28Jy ms
peak_freqDiffers between sub-bursts.- 468.1MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 715.1MHz
sp_idxDiffers between sub-bursts.- 4.02± 0.66
sp_runDiffers between sub-bursts.- -12.82± 1.33
Exposure and fluence thresholds
exp_up- 84.45± 46.85hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.0Jy ms
low_ft_95- —
up_ft_95- 3.4Jy ms
Fit quality
chi_sq- 1902123.547
dof- 1903813
flag_frac- 0.283