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CHIME/FRBPublic data

FRB 20190122C

One-off burst

Event ID
27687783
Arrival, 400 MHz
2019-01-22 13:14:22.840 UTC
Right ascension
199.280°
Declination
17.559°

How the sub-bursts differ

This burst has 2 sub-bursts. These 7 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.

MeasurementSub-burst 1Sub-burst 2
Arrival time, 400 MHzMJD58505.55165324628658505.551653309434
Arrival time, infinite frequencyMJD58505.5514463999458505.55144646309
Width (fitburst)s0.0013640.005208
Peak frequencyMHz480.4424.8
Highest frequencyMHz766.6768.7
Spectral index3.850.78
Spectral running-10.54-6.54

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Localization

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Waterfall

Notes

  • This event was included in Catalog 1.
  • The pulse emission region was extended during fluence estimation.

Position

ra
199.280± 0.042degrees
dec
17.559± 0.151degrees
gl
336.04degrees
gb
78.74degrees

Detection and dispersion

bonsai_snr
43.2
snr_fitb
107.4
bonsai_dm
690.7pc cm⁻³
dm_fitb
689.7991± 0.01431pc cm⁻³
dm_exc_ne2001
664.9pc cm⁻³
dm_exc_ymw16
669.6pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.
58505.551653246286± 2.30 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.
58505.55144639994± 4.87 × 10⁻⁹MJD

Burst shape

bc_width
0.01475s
width_fitbDiffers between sub-bursts.
0.001364± 0.0000996s
scat_time
0.009553± 0.0006222s

Flux and spectrum

flux
4.30± 2.80Jy
fluence
47.42± 29.84Jy ms
peak_freqDiffers between sub-bursts.
480.4MHz
low_freq
400.2MHz
high_freqDiffers between sub-bursts.
766.6MHz
sp_idxDiffers between sub-bursts.
3.85± 0.75
sp_runDiffers between sub-bursts.
-10.54± 1.09

Exposure and fluence thresholds

exp_up
104.06± 18.37hour
exp_low
0.00± 0.00hour
low_ft_68
—
up_ft_68
1.1Jy ms
low_ft_95
—
up_ft_95
2.3Jy ms

Fit quality

chi_sq
1809010.503
dof
1820544
flag_frac
0.314