FRB 20220711B

A burst from FRB20220529A

Repeater: FRB20220529A
Event ID: 235408188
Arrival, 400 MHz: 2022-07-11 13:57:47.237 UTC
Right ascension: 19.179°
Declination: 20.497°

How the sub-bursts differ

This burst has 3 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	Sub-burst 3
Arrival time, 400 MHzMJD	59771.58179658141	59771.58179672662	59771.58179678958
Arrival time, infinite frequencyMJD	59771.58172273915	59771.58172288436	59771.58172294732
Width (fitburst)s	0.000575	0.003605	0.000777
Peak frequencyMHz	611.3	452.8	425.9
Lowest frequencyMHz	557.5	400.2	400.2
Highest frequencyMHz	670.2	526.9	484.0
Spectral index	230.39	24.74	17.56
Spectral running	-271.96	-100.21	-140.79

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Localization

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Waterfall

Notes

The pulse emission region was extended during fluence estimation.

Position

ra: 19.179± 0.041degrees
dec: 20.497± 0.219degrees
gl: 130.90degrees
gb: -41.98degrees

Detection and dispersion

bonsai_snr: 14.2
snr_fitb: 22.9
bonsai_dm: 248.3pc cm⁻³
dm_fitb: 246.2520± 0.03734pc cm⁻³
dm_exc_ne2001: 206.2pc cm⁻³
dm_exc_ymw16: 215.3pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.: 59771.58179672662± 1.07 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.: 59771.58172288436± 1.55 × 10⁻⁸MJD

Burst shape

bc_width: 0.00295s
width_fitbDiffers between sub-bursts.: 0.003605± 0.0008133s
scat_time: 0.000000s

Flux and spectrum

flux: 0.49± 0.32Jy
fluence: 4.29± 1.50Jy ms
peak_freqDiffers between sub-bursts.: 452.8MHz
low_freqDiffers between sub-bursts.: 400.2MHz
high_freqDiffers between sub-bursts.: 526.9MHz
sp_idxDiffers between sub-bursts.: 24.74± 10.88
sp_runDiffers between sub-bursts.: -100.21± 35.94

Exposure and fluence thresholds

exp_up: 87.63± 44.75hour
exp_low: 0.00± 0.00hour
low_ft_68: 0.0Jy ms
up_ft_68: 3.7Jy ms
low_ft_95: 0.0Jy ms
up_ft_95: 7.8Jy ms

Fit quality

chi_sq: 1765600.874
dof: 1766108
flag_frac: 0.335