FRB 20220202A
A burst from FRB20210822E
- Repeater
- FRB20210822E
- Event ID
- 209838881
- Arrival, 400 MHz
- 2022-02-02 13:36:21.130 UTC
- Right ascension
- 216.557°
- Declination
- 25.425°
How the sub-bursts differ
This burst has 3 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 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 59612.56691102551 | 59612.56691114902 | 59612.566911221445 |
| Arrival time, infinite frequencyMJD | 59612.56681523424 | 59612.56681535775 | 59612.566815430175 |
| Width (fitburst)s | 0.002120 | 0.000971 | 0.001671 |
| Peak frequencyMHz | 457.1 | 424.9 | 400.2 |
| Lowest frequencyMHz | 401.7 | 400.2 | 400.2 |
| Highest frequencyMHz | 520.0 | 485.0 | 462.5 |
| Spectral index | 36.74 | 15.78 | -0.18 |
| Spectral running | -138.26 | -131.58 | -108.72 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 216.557± 0.216degrees
dec- 25.425± 0.232degrees
gl- 33.72degrees
gb- 68.71degrees
Detection and dispersion
bonsai_snr- 23.1
snr_fitb- 236.8
bonsai_dm- 319.1pc cm⁻³
dm_fitb- 319.4484± 0.00469pc cm⁻³
dm_exc_ne2001- 297.9pc cm⁻³
dm_exc_ymw16- 298.0pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59612.566911221445± 8.64 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 59612.566815430175± 1.65 × 10⁻⁹MJD
Burst shape
bc_width- 0.01671s
width_fitbDiffers between sub-bursts.- 0.001671± 0.0000731s
scat_time- 0.000000s
Flux and spectrum
flux- 4.47± 0.96Jy
fluence- 40.35± 8.59Jy ms
peak_freqDiffers between sub-bursts.- 400.2MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 462.5MHz
sp_idxDiffers between sub-bursts.- -0.18± 2.95
sp_runDiffers between sub-bursts.- -108.72± 26.15
Exposure and fluence thresholds
exp_up- 63.82± 49.47hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 1.4Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 17.6Jy ms
Fit quality
chi_sq- 1701118.441
dof- 1757198
flag_frac- 0.338