FRB 20221130D

A burst from FRB20190208A

Repeater: FRB20190208A
Event ID: 253159190
Arrival, 400 MHz: 2022-11-30 22:15:51.261 UTC
Right ascension: 283.365°
Declination: 46.957°

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	59913.92767663525	59913.9276768079	59913.92767695051
Arrival time, infinite frequencyMJD	59913.92750276019	59913.92750293284	59913.92750307545
Width (fitburst)s	0.000697	0.000833	0.001411
Peak frequencyMHz	561.6	519.0	471.6
Lowest frequencyMHz	495.3	481.5	400.2
Highest frequencyMHz	636.8	559.4	569.4
Spectral index	98.70	212.72	21.31
Spectral running	-145.66	-409.32	-64.89

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Localization

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Waterfall

Notes

The pulse emission region was extended during fluence estimation.

Position

ra: 283.365± 0.232degrees
dec: 46.957± 0.246degrees
gl: 76.67degrees
gb: 19.14degrees

Detection and dispersion

bonsai_snr: 8.5
snr_fitb: 23.2
bonsai_dm: 578.7pc cm⁻³
dm_fitb: 579.8452± 0.04993pc cm⁻³
dm_exc_ne2001: 508.7pc cm⁻³
dm_exc_ymw16: 514.9pc cm⁻³

Arrival time

mjd_400Differs between sub-bursts.: 59913.92767663525± 7.61 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.: 59913.92750276019± 1.68 × 10⁻⁸MJD

Burst shape

bc_width: 0.00295s
width_fitbDiffers between sub-bursts.: 0.000697± 0.0000743s
scat_time: 0.000000s

Flux and spectrum

flux: 0.42± 0.28Jy
fluence: 2.59± 1.30Jy ms
peak_freqDiffers between sub-bursts.: 561.6MHz
low_freqDiffers between sub-bursts.: 495.3MHz
high_freqDiffers between sub-bursts.: 636.8MHz
sp_idxDiffers between sub-bursts.: 98.70± 23.13
sp_runDiffers between sub-bursts.: -145.66± 32.90

Exposure and fluence thresholds

exp_up: 107.51± 64.78hour
exp_low: 0.00± 0.00hour
low_ft_68: 0.0Jy ms
up_ft_68: 2.1Jy ms
low_ft_95: 0.0Jy ms
up_ft_95: 4.5Jy ms

Fit quality

chi_sq: 1929043.827
dof: 1929566
flag_frac: 0.273