FRB 20200317C
One-off burst
- Event ID
- 77404819
- Arrival, 400 MHz
- 2020-03-17 09:43:00.806 UTC
- Right ascension
- 200.390°
- Declination
- 50.444°
How the sub-bursts differ
This burst has 2 sub-bursts. These 7 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 | 58925.404870393286 | 58925.40487043655 |
| Arrival time, infinite frequencyMJD | 58925.404785993764 | 58925.40478603703 |
| Width (fitburst)s | 0.001225 | 0.000806 |
| Peak frequencyMHz | 411.3 | 401.9 |
| Highest frequencyMHz | 488.5 | 510.0 |
| Spectral index | 4.25 | 0.34 |
| Spectral running | -77.75 | -40.54 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 200.390± 0.027degrees
dec- 50.444± 0.065degrees
gl- 111.10degrees
gb- 65.99degrees
Detection and dispersion
bonsai_snr- 37.6
snr_fitb- 67.8
bonsai_dm- 279.8pc cm⁻³
dm_fitb- 281.4587± 0.00808pc cm⁻³
dm_exc_ne2001- 252.2pc cm⁻³
dm_exc_ymw16- 259.7pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58925.40487043655± 3.75 × 10⁻¹⁰MJD
mjd_infDiffers between sub-bursts.- 58925.40478603703± 2.45 × 10⁻⁹MJD
Burst shape
bc_width- 0.00197s
width_fitbDiffers between sub-bursts.- 0.000806± 0.0000212s
scat_time- 0.000000s
Flux and spectrum
flux- 1.37± 0.43Jy
fluence- 5.04± 1.40Jy ms
peak_freqDiffers between sub-bursts.- 401.9MHz
low_freq- 400.2MHz
high_freqDiffers between sub-bursts.- 510.0MHz
sp_idxDiffers between sub-bursts.- 0.34± 0.86
sp_runDiffers between sub-bursts.- -40.54± 4.40
Exposure and fluence thresholds
exp_up- 97.59± 67.48hour
exp_low- 0.00± 0.00hour
low_ft_68- —
up_ft_68- 0.7Jy ms
low_ft_95- —
up_ft_95- 1.3Jy ms
Fit quality
chi_sq- 2202656.202
dof- 2207239
flag_frac- 0.168