FRB 20221107E

A burst from FRB20220912A

Repeater: FRB20220912A
Event ID: 251067880
Arrival, 400 MHz: 2022-11-07 04:01:47.326 UTC
Right ascension: 347.534°
Declination: 48.801°

How the sub-bursts differ

This burst has 2 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.

Measurement	Sub-burst 1	Sub-burst 2
Arrival time, 400 MHzMJD	59890.16790856906	59890.16790886296
Arrival time, infinite frequencyMJD	59890.167841668626	59890.167841962524
Width (fitburst)s	0.010717	0.007649
Peak frequencyMHz	596.1	473.0
Lowest frequencyMHz	526.6	400.2
Highest frequencyMHz	674.7	589.4
Spectral index	119.61	15.92
Spectral running	-150.10	-47.60

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Localization

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Waterfall

Notes

The pulse emission region was extended during fluence estimation.
Flux and fluence. Flux/fluence could not be determined due to an unspecified computational failure in the fluence pipeline.

Position

ra: 347.534± 0.226degrees
dec: 48.801± 0.222degrees
gl: 106.27degrees
gb: -10.77degrees

Detection and dispersion

bonsai_snr: 10.8
snr_fitb: 21.6
bonsai_dm: 227.3pc cm⁻³
dm_fitb: 223.1021± 0.41005pc cm⁻³
dm_exc_ne2001: 97.5pc cm⁻³
dm_exc_ymw16: 100.3pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.: 59890.16790886296± 3.76 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.: 59890.167841962524± 1.29 × 10⁻⁷MJD

Burst shape

bc_width: 0.04620s
width_fitbDiffers between sub-bursts.: 0.007649± 0.0007078s
scat_time: 0.000000s

Flux and spectrum

flux: —
fluence: —
peak_freqDiffers between sub-bursts.: 473.0MHz
low_freqDiffers between sub-bursts.: 400.2MHz
high_freqDiffers between sub-bursts.: 589.4MHz
sp_idxDiffers between sub-bursts.: 15.92± 4.81
sp_runDiffers between sub-bursts.: -47.60± 13.30

Exposure and fluence thresholds

exp_up: 115.23± 65.00hour
exp_low: 0.00± 0.00hour
low_ft_68: 0.0Jy ms
up_ft_68: 2.6Jy ms
low_ft_95: 0.0Jy ms
up_ft_95: 7.1Jy ms

Fit quality

chi_sq: 1967346.279
dof: 1967803
flag_frac: 0.259