Difference between revisions of "EOVSA Data products"

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(All-day XP spectrum)
(Level 2 - Images and spectrogram data in standard FITS format)
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Daily cross power spectrogram (mean flux from baselines with "intermediate" lengths) calibrated in solar flux units are provided at 451 frequencies and 1 s time resolution. XP spectrogram has much better sensitivity to weak bursts.
 
Daily cross power spectrogram (mean flux from baselines with "intermediate" lengths) calibrated in solar flux units are provided at 451 frequencies and 1 s time resolution. XP spectrogram has much better sensitivity to weak bursts.
  
<source lang="python" line='line'>
+
<pre style="background-color: #FCEBD9;">
 
from suncasa.eovsa import eovsa_dspec as ds
 
from suncasa.eovsa import eovsa_dspec as ds
 
## define the dynamic spectrum file.
 
## define the dynamic spectrum file.
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## display the dynamic spectrum.  
 
## display the dynamic spectrum.  
 
ds.dspec(tpfits)
 
ds.dspec(tpfits)
</source>
+
</pre>
<source lang="python">
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# Pseudo-interactive CASA
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taskname('input parameters')
+
</source>
+
  
 
[[File:XPSP.jpeg|500px| center]]
 
[[File:XPSP.jpeg|500px| center]]

Revision as of 17:12, 23 March 2020

Welcome to the EOVSA data products documentation. EOVSA observes the full disk of the Sun at all times when the Sun is >10 degrees above the local horizon, which is season dependent and ranges from 7-12 hours duration centered on 20 UT. During January, coverage will be 16-24 UT daily, 7 days/week. EOVSA will provide microwave spectra and imaging at up to 451 frequencies between 1 and 18 GHz. We deliver the radio interferometry data in level 0-2.

Pipeline flowchart.jpg

Data Definition

Level 0 - Raw visibility data from the instrument

Level 1 - Calibrated visibility data

Level 1 data have all of the required content to produce Level 2 data products

CASA 1-min averaged ms

CASA Event ms

Level 2 - Images and spectrogram data in standard FITS format

All-day TP spectrum

Daily total power full-Sun-integrated spectrogram calibrated in solar flux units are provided at 451 frequencies and 1 s time resolution.

from suncasa.eovsa import eovsa_dspec as ds
## define the dynamic spectrum file.
tpfits = 'EOVSA_TPall_20191225.fts'
## display the dynamic spectrum. 
ds.dspec(tpfits)
TPSP.jpeg

All-day XP spectrum

Daily cross power spectrogram (mean flux from baselines with "intermediate" lengths) calibrated in solar flux units are provided at 451 frequencies and 1 s time resolution. XP spectrogram has much better sensitivity to weak bursts.

from suncasa.eovsa import eovsa_dspec as ds
## define the dynamic spectrum file.
tpfits = 'EOVSA_XPall_20191225.fts'
## display the dynamic spectrum. 
ds.dspec(tpfits)
XPSP.jpeg

Synoptic 6-band Images

Full disk images at 6 selected frequency bands centered at 1.4, 3.0, 4.5, 6.8, 10.2, and 13.9 GHz are provided once per day, calibrated in brightness temperature.
Synoptic image.jpg

10-min 6-band Images

Event images