FRB 20210304D
One-off burst
- Event ID
- 163417767
- Arrival, 400 MHz
- 2021-03-04 07:17:25.150 UTC
- Right ascension
- 151.571°
- Declination
- 19.981°
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 | 59277.30376331287 | 59277.30376346403 |
| Arrival time, infinite frequencyMJD | 59277.303636258934 | 59277.303636410084 |
| Width (fitburst)s | 0.003244 | 0.006507 |
| Peak frequencyMHz | 410.8 | 432.6 |
| Highest frequencyMHz | 682.1 | 584.7 |
| Spectral index | 0.47 | 3.95 |
| Spectral running | -8.95 | -25.37 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 151.571± 0.047degrees
dec- 19.981± 0.088degrees
gl- 214.58degrees
gb- 51.66degrees
Detection and dispersion
bonsai_snr- 29.3
snr_fitb- 50.7
bonsai_dm- 425.4pc cm⁻³
dm_fitb- 423.7043± 0.03374pc cm⁻³
dm_exc_ne2001- 386.6pc cm⁻³
dm_exc_ymw16- 397.4pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59277.30376331287± 3.61 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59277.303636258934± 1.07 × 10⁻⁸MJD
Burst shape
bc_width- 0.02458s
width_fitbDiffers between sub-bursts.- 0.003244± 0.0001845s
scat_time- 0.000000s
Flux and spectrum
flux- 1.01± 0.34Jy
fluence- 12.37± 2.90Jy ms
peak_freqDiffers between sub-bursts.- 410.8MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 682.1MHz
sp_idxDiffers between sub-bursts.- 0.47± 0.64
sp_runDiffers between sub-bursts.- -8.95± 1.49
Exposure and fluence thresholds
exp_up- 77.59± 43.03hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 3.3Jy ms
low_ft_95- —
up_ft_95- 5.5Jy ms
Fit quality
chi_sq- 2045113.077
dof- 2047669
flag_frac- 0.229