FRB 20210119B
One-off burst
- Event ID
- 152879076
- Arrival, 400 MHz
- 2021-01-19 12:05:17.056 UTC
- Right ascension
- 180.994°
- Declination
- 8.419°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 3 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 59233.50366941165 | 59233.503669630896 | 59233.503669796315 | 59233.503669882826 |
| Arrival time, infinite frequencyMJD | 59233.50353732283 | 59233.50353754208 | 59233.5035377075 | 59233.50353779401 |
| Width (fitburst)s | 0.001670 | 0.000441 | 0.000650 | 0.000903 |
| Peak frequencyMHz | 414.6 | 400.2 | 400.2 | 402.0 |
| Highest frequencyMHz | 456.5 | 800.2 | 484.0 | 452.2 |
| Spectral index | 17.50 | -19.49 | -0.24 | 1.46 |
| Spectral running | -247.74 | 23.93 | -62.43 | -166.09 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 180.994± 0.217degrees
dec- 8.419± 0.284degrees
gl- 269.76degrees
gb- 68.18degrees
Detection and dispersion
bonsai_snr- 13.1
snr_fitb- 30.6
bonsai_dm- 439.6pc cm⁻³
dm_fitb- 440.4948± 0.01466pc cm⁻³
dm_exc_ne2001- 411.0pc cm⁻³
dm_exc_ymw16- 419.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59233.503669630896± 1.09 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59233.50353754208± 4.53 × 10⁻⁹MJD
Burst shape
bc_width- 0.00786s
width_fitbDiffers between sub-bursts.- 0.000441± 0.0000502s
scat_time- 0.000000s
Flux and spectrum
flux- 0.52± 0.52Jy
fluence- 5.01± 2.41Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- -19.49± 5.77
sp_runDiffers between sub-bursts.- 23.93± 8.13
Exposure and fluence thresholds
exp_up- 69.10± 43.22hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 2.8Jy ms
low_ft_95- —
up_ft_95- 5.2Jy ms
Fit quality
chi_sq- 1980161.330
dof- 1981077
flag_frac- 0.254