FRB 20180917A
A burst from FRB20180814A
- Repeater
- FRB20180814A
- Event ID
- 15707968
- Arrival, 400 MHz
- 2018-09-17 00:46:38.097 UTC
- Right ascension
- 65.538°
- Declination
- 73.633°
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 | 58378.03238493907 | 58378.032385107115 | 58378.032385377075 |
| Arrival time, infinite frequencyMJD | 58378.03232808062 | 58378.032328248664 | 58378.032328518624 |
| Width (fitburst)s | 0.001575 | 0.002118 | 0.009372 |
| Peak frequencyMHz | 772.3 | 704.3 | 635.7 |
| Lowest frequencyMHz | 690.3 | 630.8 | 556.2 |
| Highest frequencyMHz | 800.2 | 786.3 | 726.5 |
| Spectral index | 239.88 | 214.44 | 119.44 |
| Spectral running | -182.43 | -189.69 | -129.07 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 65.538± 0.192degrees
dec- 73.633± 0.269degrees
gl- 136.45degrees
gb- 16.59degrees
Detection and dispersion
bonsai_snr- 19.0
snr_fitb- 47.8
bonsai_dm- 194.1pc cm⁻³
dm_fitb- 189.6137± 0.20925pc cm⁻³
dm_exc_ne2001- 101.7pc cm⁻³
dm_exc_ymw16- 80.6pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58378.032385377075± 4.20 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58378.032328518624± 7.55 × 10⁻⁸MJD
Burst shape
bc_width- 0.06095s
width_fitbDiffers between sub-bursts.- 0.009372± 0.0012796s
scat_time- 0.046933± 0.0042428s
Flux and spectrum
flux- 0.96± 0.38Jy
fluence- 11.23± 3.03Jy ms
peak_freqDiffers between sub-bursts.- 635.7MHz
low_freqDiffers between sub-bursts.- 556.2MHz
high_freqDiffers between sub-bursts.- 726.5MHz
sp_idxDiffers between sub-bursts.- 119.44± 26.54
sp_runDiffers between sub-bursts.- -129.07± 28.50
Exposure and fluence thresholds
exp_up- 266.90± 156.77hour
exp_low- 272.58± 50.47hour
low_ft_68- 45.8Jy ms
up_ft_68- 7.4Jy ms
low_ft_95- 147.3Jy ms
up_ft_95- 23.7Jy ms
Fit quality
chi_sq- 1359969.261
dof- 1362241
flag_frac- 0.487