FRB 20220525A

A burst from FRB20190907A

Repeater: FRB20190907A
Event ID: 226539228
Arrival, 400 MHz: 2022-05-25 00:03:49.978 UTC
Right ascension: 122.347°
Declination: 46.276°

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	59724.002661616716	59724.00266178577	59724.002661891805
Arrival time, infinite frequencyMJD	59724.00256876182	59724.00256893088	59724.00256903691
Width (fitburst)s	0.000891	0.000676	0.001738
Peak frequencyMHz	484.7	447.4	415.3
Lowest frequencyMHz	432.1	400.2	400.2
Highest frequencyMHz	543.7	508.2	450.1
Spectral index	66.74	31.52	26.40
Spectral running	-174.21	-141.52	-355.84

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Localization

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Waterfall

Notes

Intrachannel dispersion was not modeled during fit.

Position

ra: 122.347± 0.205degrees
dec: 46.276± 0.204degrees
gl: 173.39degrees
gb: 32.33degrees

Detection and dispersion

bonsai_snr: 15.9
snr_fitb: 24.5
bonsai_dm: 312.2pc cm⁻³
dm_fitb: 309.6561± 0.07903pc cm⁻³
dm_exc_ne2001: 256.4pc cm⁻³
dm_exc_ymw16: 259.3pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.: 59724.00266178577± 5.70 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.: 59724.00256893088± 2.44 × 10⁻⁸MJD

Burst shape

bc_width: 0.03637s
width_fitbDiffers between sub-bursts.: 0.000676± 0.0002829s
scat_time: 0.007110± 0.0009277s

Flux and spectrum

flux: 0.36± 0.33Jy
fluence: 5.04± 4.40Jy ms
peak_freqDiffers between sub-bursts.: 447.4MHz
low_freqDiffers between sub-bursts.: 400.2MHz
high_freqDiffers between sub-bursts.: 508.2MHz
sp_idxDiffers between sub-bursts.: 31.52± 9.08
sp_runDiffers between sub-bursts.: -141.52± 37.51

Exposure and fluence thresholds

exp_up: 109.28± 62.61hour
exp_low: 0.00± 0.00hour
low_ft_68: 0.0Jy ms
up_ft_68: 1.8Jy ms
low_ft_95: 0.0Jy ms
up_ft_95: 4.1Jy ms

Fit quality

chi_sq: 1718865.941
dof: 1719451
flag_frac: 0.352