FRB 20230107B
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 260371592
- Arrival, 400 MHz
- 2023-01-07 00:08:08.820 UTC
- Right ascension
- 347.243°
- Declination
- 48.797°
How the sub-bursts differ
This burst has 2 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 |
|---|---|---|
| Arrival time, 400 MHzMJD | 59951.00565754301 | 59951.00565763712 |
| Arrival time, infinite frequencyMJD | 59951.005590954555 | 59951.00559104866 |
| Width (fitburst)s | 0.006189 | 0.010884 |
| Peak frequencyMHz | 472.1 | 440.3 |
| Lowest frequencyMHz | 429.2 | 404.0 |
| Highest frequencyMHz | 519.3 | 479.9 |
| Spectral index | 83.72 | 59.30 |
| Spectral running | -253.30 | -310.44 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period affected by miscellaneous system problems (e.g. data corruption or timing errors) and should be excluded from population studies.
Position
ra- 347.243± 0.200degrees
dec- 48.797± 0.197degrees
gl- 106.08degrees
gb- -10.69degrees
Detection and dispersion
bonsai_snr- 16.9
snr_fitb- 43.2
bonsai_dm- 222.4pc cm⁻³
dm_fitb- 222.0617± 0.31785pc cm⁻³
dm_exc_ne2001- 95.8pc cm⁻³
dm_exc_ymw16- 98.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59951.00565763712± 1.60 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59951.00559104866± 9.66 × 10⁻⁸MJD
Burst shape
bc_width- 0.02261s
width_fitbDiffers between sub-bursts.- 0.010884± 0.0007972s
scat_time- 0.000000s
Flux and spectrum
flux- 0.93± 0.56Jy
fluence- 9.44± 2.65Jy ms
peak_freqDiffers between sub-bursts.- 440.3MHz
low_freqDiffers between sub-bursts.- 404.0MHz
high_freqDiffers between sub-bursts.- 479.9MHz
sp_idxDiffers between sub-bursts.- 59.30± 7.34
sp_runDiffers between sub-bursts.- -310.44± 41.85
Exposure and fluence thresholds
exp_up- 117.47± 65.81hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.6Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.1Jy ms
Fit quality
chi_sq- 1846395.830
dof- 1848247
flag_frac- 0.304