FRB 20221031C
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 250003745
- Arrival, 400 MHz
- 2022-10-31 04:31:12.332 UTC
- Right ascension
- 347.384°
- Declination
- 48.804°
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 | 59883.188336698084 | 59883.18833683546 | 59883.18833718121 |
| Arrival time, infinite frequencyMJD | 59883.188270668594 | 59883.18827080597 | 59883.18827115172 |
| Width (fitburst)s | 0.008112 | 0.010369 | 0.003640 |
| Peak frequencyMHz | 731.4 | 663.4 | 438.9 |
| Lowest frequencyMHz | 687.6 | 615.5 | 400.2 |
| Highest frequencyMHz | 778.0 | 715.1 | 492.7 |
| Spectral index | 727.32 | 413.71 | 31.73 |
| Spectral running | -603.02 | -409.28 | -172.00 |
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Notes
- The pulse emission region was extended during fluence estimation.
- Flux and fluence. Flux/fluence could not be determined due to an incorrect peak flux measurement.
Position
ra- 347.384± 0.212degrees
dec- 48.804± 0.212degrees
gl- 106.17degrees
gb- -10.72degrees
Detection and dispersion
bonsai_snr- 13.0
snr_fitb- 25.1
bonsai_dm- 221.6pc cm⁻³
dm_fitb- 220.1977± 0.37456pc cm⁻³
dm_exc_ne2001- 94.2pc cm⁻³
dm_exc_ymw16- 97.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59883.18833718121± 2.12 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59883.18827115172± 1.14 × 10⁻⁷MJD
Burst shape
bc_width- 0.05210s
width_fitbDiffers between sub-bursts.- 0.003640± 0.0005200s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 438.9MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 492.7MHz
sp_idxDiffers between sub-bursts.- 31.73± 14.94
sp_runDiffers between sub-bursts.- -172.00± 77.06
Exposure and fluence thresholds
exp_up- 117.21± 64.30hour
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- 1981603.969
dof- 1982216
flag_frac- 0.253