FRB 20181028A
A burst from FRB20180814A
- Repeater
- FRB20180814A
- Event ID
- 19815274
- Arrival, 400 MHz
- 2018-10-28 10:12:34.125 UTC
- Right ascension
- 70.999°
- Declination
- 73.657°
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 | 58419.42539458396 | 58419.42539479026 | 58419.42539496394 | 58419.42539508947 |
| Arrival time, infinite frequencyMJD | 58419.425337983615 | 58419.42533818992 | 58419.425338363595 | 58419.42533848912 |
| Width (fitburst)s | 0.004168 | 0.002010 | 0.002520 | 0.002029 |
| Peak frequencyMHz | 483.2 | 468.2 | 450.6 | 430.6 |
| Lowest frequencyMHz | 439.6 | 431.0 | 411.1 | 400.2 |
| Highest frequencyMHz | 531.1 | 508.5 | 493.8 | 465.9 |
| Spectral index | 97.03 | 105.64 | 65.02 | 54.16 |
| Spectral running | -257.43 | -336.73 | -274.05 | -370.31 |
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Notes
- This event was included in Catalog 1.
- The pulse emission region was extended during fluence estimation.
Position
ra- 70.999± 0.219degrees
dec- 73.657± 0.243degrees
gl- 137.47degrees
gb- 17.78degrees
Detection and dispersion
bonsai_snr- 11.7
snr_fitb- 98.1
bonsai_dm- 181.2pc cm⁻³
dm_fitb- 188.7530± 0.03664pc cm⁻³
dm_exc_ne2001- 105.9pc cm⁻³
dm_exc_ymw16- 89.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58419.42539496394± 2.74 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58419.425338363595± 1.13 × 10⁻⁸MJD
Burst shape
bc_width- 0.02654s
width_fitbDiffers between sub-bursts.- 0.002520± 0.0001421s
scat_time- 0.000000s
Flux and spectrum
flux- 1.75± 0.77Jy
fluence- 32.28± 12.06Jy ms
peak_freqDiffers between sub-bursts.- 450.6MHz
low_freqDiffers between sub-bursts.- 411.1MHz
high_freqDiffers between sub-bursts.- 493.8MHz
sp_idxDiffers between sub-bursts.- 65.02± 6.18
sp_runDiffers between sub-bursts.- -274.05± 25.62
Exposure and fluence thresholds
exp_up- 266.63± 153.58hour
exp_low- 261.31± 64.72hour
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- 1591094.475
dof- 1600701
flag_frac- 0.397