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CHIME/FRBPublic data
Repeater
FRB20200118D
Event ID
69246471
Arrival, 400 MHz
2020-01-18 07:15:55.966 UTC
Right ascension
106.734°
Declination
42.747°

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 MHzMJD58866.30273104399458866.30273109109
Arrival time, infinite frequencyMJD58866.3025435590558866.30254360615
Width (fitburst)s0.0008360.002375
Peak frequencyMHz447.9408.8
Highest frequencyMHz512.1479.0
Spectral index28.843.90
Spectral running-128.06-91.73

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Localization

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Waterfall

Notes

  • The pulse emission region was extended during fluence estimation.

Position

ra
106.734± 0.187degrees
dec
42.747± 0.190degrees
gl
174.50degrees
gb
20.71degrees

Detection and dispersion

bonsai_snr
19.5
snr_fitb
31.9
bonsai_dm
624.4pc cm⁻³
dm_fitb
625.2320± 0.03306pc cm⁻³
dm_exc_ne2001
548.1pc cm⁻³
dm_exc_ymw16
532.7pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.
58866.30273109109± 4.30 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.
58866.30254360615± 1.08 × 10⁻⁸MJD

Burst shape

bc_width
0.00786s
width_fitbDiffers between sub-bursts.
0.002375± 0.0002856s
scat_time
0.000000s

Flux and spectrum

flux
0.15± 0.07Jy
fluence
0.95± 0.23Jy ms
peak_freqDiffers between sub-bursts.
408.8MHz
low_freq
400.2MHz
high_freqDiffers between sub-bursts.
479.0MHz
sp_idxDiffers between sub-bursts.
3.90± 4.38
sp_runDiffers between sub-bursts.
-91.73± 30.07

Exposure and fluence thresholds

exp_up
116.65± 52.75hour
exp_low
0.00± 0.00hour
low_ft_68
0.0Jy ms
up_ft_68
0.7Jy ms
low_ft_95
0.0Jy ms
up_ft_95
1.5Jy ms

Fit quality

chi_sq
2237013.030
dof
2238019
flag_frac
0.157