FRB 20210518B
A burst from FRB20210209C
- Repeater
- FRB20210209C
- Event ID
- 171305410
- Arrival, 400 MHz
- 2021-05-18 05:54:00.800 UTC
- Right ascension
- 203.533°
- Declination
- 49.042°
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 | 59352.24584259687 | 59352.24584274757 |
| Arrival time, infinite frequencyMJD | 59352.24572786146 | 59352.24572801216 |
| Width (fitburst)s | 0.000983 | 0.001676 |
| Peak frequencyMHz | 784.9 | 671.9 |
| Lowest frequencyMHz | 752.1 | 581.7 |
| Highest frequencyMHz | 800.2 | 776.0 |
| Spectral index | 1702.79 | 114.87 |
| Spectral running | -1264.08 | -110.84 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 203.533± 0.184degrees
dec- 49.042± 0.159degrees
gl- 105.14degrees
gb- 66.58degrees
Detection and dispersion
bonsai_snr- 20.3
snr_fitb- 35.1
bonsai_dm- 382.1pc cm⁻³
dm_fitb- 382.6240± 0.08863pc cm⁻³
dm_exc_ne2001- 353.6pc cm⁻³
dm_exc_ymw16- 360.9pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 59352.24584259687± 1.97 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 59352.24572786146± 3.31 × 10⁻⁸MJD
Burst shape
bc_width- 0.00492s
width_fitbDiffers between sub-bursts.- 0.000983± 0.0001267s
scat_time- 0.000000s
Flux and spectrum
flux- 0.84± 0.34Jy
fluence- 3.97± 1.34Jy ms
peak_freqDiffers between sub-bursts.- 784.9MHz
low_freqDiffers between sub-bursts.- 752.1MHz
high_freqDiffers between sub-bursts.- 800.2MHz
sp_idxDiffers between sub-bursts.- 1702.79± 836.65
sp_runDiffers between sub-bursts.- -1264.08± 626.59
Exposure and fluence thresholds
exp_up- 123.81± 53.34hour
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- 4.3Jy ms
Fit quality
chi_sq- 1986021.351
dof- 1987243
flag_frac- 0.251