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CHIME/FRBPublic data

FRB 20211231B

One-off burst

Event ID
205078250
Arrival, 400 MHz
2021-12-31 05:18:55.614 UTC
Right ascension
59.126°
Declination
37.783°

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Localization

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Waterfall

Notes

  • The pulse emission region was extended during fluence estimation.
  • Fitburst. Fitburst was run with an older version that used the upper edge of the frequency channel and the start of the time integration rather than the channel and integration centers used in the current version.

Position

ra
59.126± 0.167degrees
dec
37.783± 0.028degrees
gl
158.64degrees
gb
-11.94degrees

Detection and dispersion

bonsai_snr
28.0
snr_fitb
36.0
bonsai_dm
904.6pc cm⁻³
dm_fitb
905.7229± 18.90113pc cm⁻³
dm_exc_ne2001
790.3pc cm⁻³
dm_exc_ymw16
765.6pc cm⁻³

Arrival time

mjd_400
59579.22147701577± 5.12 × 10⁻⁶MJD
mjd_inf
59579.22120542151± 7.64 × 10⁻⁶MJD

Burst shape

bc_width
0.00295s
width_fitb
0.000035± 0.0386874s
scat_time
0.003039± 0.0001344s

Flux and spectrum

flux
1.44± 0.45Jy
fluence
4.51± 1.26Jy ms
peak_freq
400.2MHz
low_freq
400.2MHz
high_freq
664.8MHz
sp_idx
-2.18± 259.38
sp_run
-4.64± 225.23

Exposure and fluence thresholds

exp_up
48.57± 50.32hour
exp_low
0.00± 0.00hour
low_ft_68
—
up_ft_68
1.8Jy ms
low_ft_95
—
up_ft_95
2.9Jy ms

Fit quality

chi_sq
768824.987
dof
769661
flag_frac
0.242