FRB 20220325A
A burst from FRB20220316A
- Repeater
- FRB20220316A
- Event ID
- 218090384
- Arrival, 400 MHz
- 2022-03-25 19:24:23.640 UTC
- Right ascension
- 353.385°
- Declination
- 40.236°
How the sub-bursts differ
This burst has 4 sub-bursts. These 8 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 | 59663.808606669365 | 59663.80860694349 | 59663.80860696891 | 59663.808607045656 |
| Arrival time, infinite frequencyMJD | 59663.80850170334 | 59663.80850197746 | 59663.80850200288 | 59663.80850207963 |
| Width (fitburst)s | 0.002649 | 0.009590 | 0.013045 | 0.002136 |
| Peak frequencyMHz | 420.7 | 418.6 | 400.7 | 410.7 |
| Lowest frequencyMHz | 402.3 | 401.1 | 400.2 | 400.2 |
| Highest frequencyMHz | 439.8 | 436.9 | 402.4 | 441.4 |
| Spectral index | 115.67 | 113.54 | 319.04 | 22.94 |
| Spectral running | -1159.91 | -1259.41 | -128961.94 | -443.10 |
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Notes
- The pulse emission region was extended during fluence estimation.
- Flux and fluence. Flux/fluence unavailable because the best available calibrator was of poor quality.
Position
ra- 353.385± 0.231degrees
dec- 40.236± 0.231degrees
gl- 107.19degrees
gb- -20.24degrees
Detection and dispersion
bonsai_snr- 11.3
snr_fitb- 77.5
bonsai_dm- 349.8pc cm⁻³
dm_fitb- 350.0447± 0.09995pc cm⁻³
dm_exc_ne2001- 280.3pc cm⁻³
dm_exc_ymw16- 288.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59663.80860694349± 5.32 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59663.80850197746± 3.04 × 10⁻⁸MJD
Burst shape
bc_width- 0.04030s
width_fitbDiffers between sub-bursts.- 0.009590± 0.0003100s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 418.6MHz
low_freqDiffers between sub-bursts.- 401.1MHz
high_freqDiffers between sub-bursts.- 436.9MHz
sp_idxDiffers between sub-bursts.- 113.54± 10.29
sp_runDiffers between sub-bursts.- -1259.41± 103.29
Exposure and fluence thresholds
exp_up- 99.23± 57.35hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 0.7Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 1.2Jy ms
Fit quality
chi_sq- 1834799.499
dof- 1840785
flag_frac- 0.306