FRB 20230504C
A burst from FRB20190117A
- Repeater
- FRB20190117A
- Event ID
- 287436139
- Arrival, 400 MHz
- 2023-05-04 15:20:15.551 UTC
- Right ascension
- 331.685°
- Declination
- 17.333°
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 | 60068.63906887498 | 60068.639068913864 | 60068.63906899963 | 60068.63906907876 |
| Arrival time, infinite frequencyMJD | 60068.63894991527 | 60068.638949954155 | 60068.638950039924 | 60068.63895011905 |
| Width (fitburst)s | 0.001373 | 0.000993 | 0.003389 | 0.002053 |
| Peak frequencyMHz | 656.8 | 643.9 | 611.5 | 536.8 |
| Lowest frequencyMHz | 577.4 | 572.7 | 524.4 | 454.2 |
| Highest frequencyMHz | 747.0 | 724.0 | 713.1 | 634.5 |
| Spectral index | 137.64 | 159.38 | 82.67 | 48.37 |
| Spectral running | -138.94 | -167.57 | -97.49 | -82.35 |
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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 unspecified computational failure in the fluence pipeline.
Position
ra- 331.685± 0.018degrees
dec- 17.333± 0.089degrees
gl- 76.26degrees
gb- -30.24degrees
Detection and dispersion
bonsai_snr- 27.8
snr_fitb- 52.6
bonsai_dm- 398.7pc cm⁻³
dm_fitb- 396.7114± 0.08713pc cm⁻³
dm_exc_ne2001- 348.4pc cm⁻³
dm_exc_ymw16- 356.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60068.63906887498± 1.73 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60068.63894991527± 3.14 × 10⁻⁸MJD
Burst shape
bc_width- 0.02163s
width_fitbDiffers between sub-bursts.- 0.001373± 0.0002147s
scat_time- 0.000000s
Flux and spectrum
flux- —
fluence- —
peak_freqDiffers between sub-bursts.- 656.8MHz
low_freqDiffers between sub-bursts.- 577.4MHz
high_freqDiffers between sub-bursts.- 747.0MHz
sp_idxDiffers between sub-bursts.- 137.64± 20.25
sp_runDiffers between sub-bursts.- -138.94± 20.89
Exposure and fluence thresholds
exp_up- 96.26± 35.44hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 7.4Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 20.9Jy ms
Fit quality
chi_sq- 1796083.136
dof- 1798827
flag_frac- 0.322