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CHIME/FRBPublic data

FRB 20201010B

One-off burst

Event ID
137751593
Arrival, 400 MHz
2020-10-10 15:26:31.233 UTC
Right ascension
130.237°
Declination
42.265°

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 MHzMJD59132.6434170185559132.64341705287
Arrival time, infinite frequencyMJD59132.6433402468159132.64334028113
Width (fitburst)s0.0008190.002955
Peak frequencyMHz400.2420.6
Highest frequencyMHz767.9529.7
Spectral index-0.884.29
Spectral running-4.07-43.24

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Localization

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Waterfall

Notes

  • The pulse emission region was extended during fluence estimation.

Position

ra
130.237± 0.170degrees
dec
42.265± 0.056degrees
gl
178.92degrees
gb
37.56degrees

Detection and dispersion

bonsai_snr
65.4
snr_fitb
219.6
bonsai_dm
257.2pc cm⁻³
dm_fitb
256.0213± 0.00142pc cm⁻³
dm_exc_ne2001
208.3pc cm⁻³
dm_exc_ymw16
215.5pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.
59132.64341705287± 8.89 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.
59132.64334028113± 9.85 × 10⁻¹⁰MJD

Burst shape

bc_width
0.00295s
width_fitbDiffers between sub-bursts.
0.002955± 0.0000588s
scat_time
0.000000s

Flux and spectrum

flux
7.43± 2.26Jy
fluence
30.69± 9.25Jy ms
peak_freqDiffers between sub-bursts.
420.6MHz
low_freq
400.2MHz
high_freqDiffers between sub-bursts.
529.7MHz
sp_idxDiffers between sub-bursts.
4.29± 0.86
sp_runDiffers between sub-bursts.
-43.24± 4.50

Exposure and fluence thresholds

exp_up
72.84± 60.67hour
exp_low
0.00± 0.00hour
low_ft_68
—
up_ft_68
2.9Jy ms
low_ft_95
—
up_ft_95
4.9Jy ms

Fit quality

chi_sq
1981961.887
dof
2030173
flag_frac
0.235