EOVSA Data products: Difference between revisions
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==Level 2 - Images and spectrogram data in standard FITS format == | ==Level 2 - Images and spectrogram data in standard FITS format == | ||
===Getting level 2 data=== | |||
EOVSA Level 2 data products can be retrieved from the "synoptic data" page: | EOVSA Level 2 data products can be retrieved from the "synoptic data" page: | ||
[http://www.ovsa.njit.edu/fits/synoptic] | [http://www.ovsa.njit.edu/fits/synoptic] | ||
===[http://www.ovsa.njit.edu/fits/synoptic# All-day TP spectrum]=== | ====[http://www.ovsa.njit.edu/fits/synoptic# 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. | Daily total power full-Sun-integrated spectrogram calibrated in solar flux units are provided at 451 frequencies and 1 s time resolution. | ||
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[[File:TPSP.jpeg|center|500px]] | [[File:TPSP.jpeg|center|500px]] | ||
===[http://www.ovsa.njit.edu/fits/synoptic# All-day XP spectrum]=== | ====[http://www.ovsa.njit.edu/fits/synoptic# 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. | 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. | ||
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[[File:XPSP.jpeg|500px| center]] | [[File:XPSP.jpeg|500px| center]] | ||
===[http://www.ovsa.njit.edu/fits/synoptic# Synoptic 6-band Images]=== | ====[http://www.ovsa.njit.edu/fits/synoptic# 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. [[File:synoptic_image.jpg| center |400px]] | 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. [[File:synoptic_image.jpg| center |400px]] | ||
===10-min 6-band Images=== | ====10-min 6-band Images==== | ||
===Event images=== | ====Event images==== | ||
===Reading level 2 data=== | |||
Revision as of 18:13, 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.
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
Getting level 2 data
EOVSA Level 2 data products can be retrieved from the "synoptic data" page: [1]
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)
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)
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.
