FRB 20180917A
A burst from FRB20180814A
- Repeater
- FRB20180814A
- Arrival, 400 MHz
- 2018-09-17 00:46:38.179 UTC
- Right ascension
- 65.540°
- Declination
- 73.630°
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 | 58378.0323858329 | 58378.0323860277 | 58378.032386328 |
| Arrival time, infinite frequencyMJD | 58378.0323288836 | 58378.032329078 | 58378.032329379 |
| Width (fitburst)s | 0.001780 | 0.003450 | 0.007600 |
| Peak frequencyMHz | 800.2 | 701.7 | 639.7 |
| Lowest frequencyMHz | 658.6 | 561.8 | 531.1 |
| Highest frequencyMHz | 800.2 | 800.2 | 770.5 |
| Spectral index | 34.00 | 52.30 | 62.00 |
| Spectral running | -19.00 | -46.50 | -67.00 |
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Position
ra- 65.540± 0.190degrees
dec- 73.630± 0.270degrees
gl- 136.46degrees
gb- 16.58degrees
Detection and dispersion
bonsai_snr- 19.0
snr_fitb- 46.6
bonsai_dm- 194.1pc cm⁻³
dm_fitb- 189.9170± 0.01800pc cm⁻³
dm_exc_ne2001- 102.1pc cm⁻³
dm_exc_ymw16- 81.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58378.032386328± 1.50 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 58378.032329379± 1.60 × 10⁻⁸MJD
Burst shape
bc_width- 0.06095s
width_fitbDiffers between sub-bursts.- 0.007600± 0.0016000s
scat_time- 0.008000± 0.0025000s
Flux and spectrum
flux- 3.20± 3.10Jy
fluence- 46.00± 32.00Jy ms
peak_freqDiffers between sub-bursts.- 639.7MHz
low_freqDiffers between sub-bursts.- 531.1MHz
high_freqDiffers between sub-bursts.- 770.5MHz
sp_idxDiffers between sub-bursts.- 62.00± 15.00
sp_runDiffers between sub-bursts.- -67.00± 15.00
Exposure and fluence thresholds
exp_up- 41.00± 24.00hour
exp_low- 43.50± 7.90hour
low_ft_68- 43.8Jy ms
up_ft_68- 6.9Jy ms
low_ft_95- 155.9Jy ms
up_ft_95- 25.6Jy ms
Fit quality
chi_sq- 908712.749
dof- 904687
flag_frac- 0.516