FRB 20220203A
A burst from FRB20190804E
- Repeater
- FRB20190804E
- Event ID
- 209956718
- Arrival, 400 MHz
- 2022-02-03 16:32:18.088 UTC
- Right ascension
- 261.465°
- Declination
- 55.163°
How the sub-bursts differ
This burst has 4 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 | Sub-burst 4 |
|---|---|---|---|---|
| Arrival time, 400 MHzMJD | 59613.689098108836 | 59613.68909824078 | 59613.6890982128 | 59613.689098336436 |
| Arrival time, infinite frequencyMJD | 59613.68898933592 | 59613.68898946786 | 59613.688989439885 | 59613.68898956352 |
| Width (fitburst)s | 0.005299 | 0.000394 | 0.003877 | 0.002153 |
| Peak frequencyMHz | 446.4 | 423.9 | 429.3 | 416.0 |
| Lowest frequencyMHz | 411.6 | 400.2 | 400.2 | 400.2 |
| Highest frequencyMHz | 484.1 | 472.7 | 463.8 | 447.5 |
| Spectral index | 76.43 | 22.31 | 54.13 | 33.31 |
| Spectral running | -349.68 | -193.95 | -385.19 | -431.05 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 261.465± 0.203degrees
dec- 55.163± 0.206degrees
gl- 83.00degrees
gb- 34.04degrees
Detection and dispersion
bonsai_snr- 15.5
snr_fitb- 31.1
bonsai_dm- 367.2pc cm⁻³
dm_fitb- 362.7401± 0.02551pc cm⁻³
dm_exc_ne2001- 319.3pc cm⁻³
dm_exc_ymw16- 326.1pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59613.68909824078± 1.00 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 59613.68898946786± 7.71 × 10⁻⁹MJD
Burst shape
bc_width- 0.02949s
width_fitbDiffers between sub-bursts.- 0.000394± 0.0000322s
scat_time- 0.000000s
Flux and spectrum
flux- 0.31± 0.17Jy
fluence- 5.29± 2.03Jy ms
peak_freqDiffers between sub-bursts.- 423.9MHz
low_freqDiffers between sub-bursts.- 400.2MHz
high_freqDiffers between sub-bursts.- 472.7MHz
sp_idxDiffers between sub-bursts.- 22.31± 11.32
sp_runDiffers between sub-bursts.- -193.95± 76.38
Exposure and fluence thresholds
exp_up- 132.05± 75.38hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.4Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 5.1Jy ms
Fit quality
chi_sq- 1226195.946
dof- 1227141
flag_frac- 0.266