FRB 20220904F
A burst from FRB20220618C
- Repeater
- FRB20220618C
- Event ID
- 243462559
- Arrival, 400 MHz
- 2022-09-04 12:08:30.731 UTC
- Right ascension
- 46.261°
- Declination
- 13.633°
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 | 59826.50591120884 | 59826.50591123746 | 59826.505911343396 |
| Arrival time, infinite frequencyMJD | 59826.505855038646 | 59826.50585506726 | 59826.5058551732 |
| Width (fitburst)s | 0.000963 | 0.005184 | 0.003491 |
| Peak frequencyMHz | 477.5 | 459.5 | 419.4 |
| Lowest frequencyMHz | 430.1 | 408.4 | 400.2 |
| Highest frequencyMHz | 530.0 | 516.9 | 478.2 |
| Spectral index | 74.49 | 45.88 | 12.52 |
| Spectral running | -210.98 | -166.09 | -133.62 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 46.261± 0.237degrees
dec- 13.633± 0.302degrees
gl- 165.63degrees
gb- -37.92degrees
Detection and dispersion
bonsai_snr- 19.4
snr_fitb- 216.4
bonsai_dm- 188.4pc cm⁻³
dm_fitb- 187.3185± 0.01308pc cm⁻³
dm_exc_ne2001- 140.8pc cm⁻³
dm_exc_ymw16- 145.8pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59826.50591123746± 2.56 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59826.50585506726± 4.69 × 10⁻⁹MJD
Burst shape
bc_width- 0.01769s
width_fitbDiffers between sub-bursts.- 0.005184± 0.0001957s
scat_time- 0.002878± 0.0001892s
Flux and spectrum
flux- 5.01± 1.80Jy
fluence- 70.30± 23.38Jy ms
peak_freqDiffers between sub-bursts.- 459.5MHz
low_freqDiffers between sub-bursts.- 408.4MHz
high_freqDiffers between sub-bursts.- 516.9MHz
sp_idxDiffers between sub-bursts.- 45.88± 1.66
sp_runDiffers between sub-bursts.- -166.09± 5.39
Exposure and fluence thresholds
exp_up- 71.59± 46.74hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 5.0Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 20.3Jy ms
Fit quality
chi_sq- 1553259.033
dof- 1600057
flag_frac- 0.397