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CHIME/FRBPublic data

FRB 20210818A

One-off burst

Event ID
181121263
Arrival, 400 MHz
2021-08-18 21:52:13.622 UTC
Right ascension
177.647°
Declination
79.476°

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Localization

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Waterfall

Notes

  • This event should be excluded from parameter inference due to non-nominal telescope operation.
  • This low S/N event was first identified by citizen scientists on the Zooniverse platform.
  • The pulse emission region was extended during fluence estimation.
  • Exposure. Event occurred on a day with low sensitivity - identified via pulsar-based monitoring of system noise - and should be excluded from population studies.

Position

ra
177.647± 0.246degrees
dec
79.476± 0.287degrees
gl
126.38degrees
gb
37.24degrees

Detection and dispersion

bonsai_snr
8.2
snr_fitb
10.8
bonsai_dm
188.0pc cm⁻³
dm_fitb
188.4503± 0.06705pc cm⁻³
dm_exc_ne2001
144.8pc cm⁻³
dm_exc_ymw16
151.6pc cm⁻³

Arrival time

mjd_400
59444.911268773016± 4.99 × 10⁻⁹MJD
mjd_inf
59444.91121226343± 2.07 × 10⁻⁸MJD

Burst shape

bc_width
0.00295s
width_fitb
0.001340± 0.0001384s
scat_time
0.000000s

Flux and spectrum

flux
0.30± 0.16Jy
fluence
1.36± 0.37Jy ms
peak_freq
455.6MHz
low_freq
400.2MHz
high_freq
567.1MHz
sp_idx
12.46± 4.27
sp_run
-48.06± 14.00

Exposure and fluence thresholds

exp_up
374.04± 209.01hour
exp_low
379.03± 236.66hour
low_ft_68
4.1Jy ms
up_ft_68
1.1Jy ms
low_ft_95
7.6Jy ms
up_ft_95
2.0Jy ms

Fit quality

chi_sq
1692459.278
dof
1692570
flag_frac
0.362