FRB 20230725D
A burst from FRB20200926A
- Repeater
- FRB20200926A
- Event ID
- 304965868
- Arrival, 400 MHz
- 2023-07-25 06:42:34.253 UTC
- Right ascension
- 282.932°
- Declination
- 53.944°
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 | 60150.27956309765 | 60150.27956311303 |
| Arrival time, infinite frequencyMJD | 60150.2793356488 | 60150.27933566418 |
| Width (fitburst)s | 0.000533 | 0.002819 |
| Peak frequencyMHz | 618.0 | 577.7 |
| Lowest frequencyMHz | 561.2 | 543.0 |
| Highest frequencyMHz | 680.5 | 614.8 |
| Spectral index | 215.19 | 438.66 |
| Spectral running | -247.65 | -597.32 |
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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 when real-time grouping/classification (L2/L3) was non-functional and should be excluded from population studies.
Position
ra- 282.932± 0.185degrees
dec- 53.944± 0.182degrees
gl- 83.66degrees
gb- 21.59degrees
Detection and dispersion
bonsai_snr- 19.8
snr_fitb- 68.2
bonsai_dm- 758.2pc cm⁻³
dm_fitb- 758.5051± 0.04721pc cm⁻³
dm_exc_ne2001- 695.2pc cm⁻³
dm_exc_ymw16- 699.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60150.27956311303± 7.46 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 60150.27933566418± 1.60 × 10⁻⁸MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.002819± 0.0002716s
scat_time- 0.016729± 0.0010785s
Flux and spectrum
flux- 1.18± 0.44Jy
fluence- 7.94± 2.37Jy ms
peak_freqDiffers between sub-bursts.- 577.7MHz
low_freqDiffers between sub-bursts.- 543.0MHz
high_freqDiffers between sub-bursts.- 614.8MHz
sp_idxDiffers between sub-bursts.- 438.66± 51.88
sp_runDiffers between sub-bursts.- -597.32± 72.13
Exposure and fluence thresholds
exp_up- 142.79± 68.70hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 3.3Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.8Jy ms
Fit quality
chi_sq- 1773130.229
dof- 1777776
flag_frac- 0.330