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CHIME/FRBPublic data

FRB 20221227C

One-off burst

Event ID
257781521
Arrival, 400 MHz
2022-12-27 10:55:44.766 UTC
Right ascension
139.159°
Declination
52.914°

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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.
  • 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
139.159± 0.201degrees
dec
52.914± 0.197degrees
gl
164.54degrees
gb
42.96degrees

Detection and dispersion

bonsai_snr
17.9
snr_fitb
45.5
bonsai_dm
638.5pc cm⁻³
dm_fitb
638.9586± 0.00247pc cm⁻³
dm_exc_ne2001
597.5pc cm⁻³
dm_exc_ymw16
607.9pc cm⁻³

Arrival time

mjd_400
59940.455379241765± 1.24 × 10⁻¹⁰MJD
mjd_inf
59940.45518764068± 7.51 × 10⁻¹⁰MJD

Burst shape

bc_width
0.00197s
width_fitb
0.000339± 0.0000027s
scat_time
0.000000s

Flux and spectrum

flux
4.23± 2.41Jy
fluence
7.77± 3.70Jy ms
peak_freq
433.1MHz
low_freq
400.2MHz
high_freq
509.6MHz
sp_idx
13.71± 1.62
sp_run
-86.83± 8.00

Exposure and fluence thresholds

exp_up
124.27± 68.84hour
exp_low
0.00± 0.00hour
low_ft_68
—
up_ft_68
3.3Jy ms
low_ft_95
—
up_ft_95
6.1Jy ms

Fit quality

chi_sq
1869842.938
dof
1871904
flag_frac
0.295