Brief Introduction
Maps are produced in four EUV wavelengths representing different 'nominal' temperatures of the coronal plasma: ~80,000 Kelvin (304 Å), 1 million K (171Å), 1.4 million K (195Å), and 1.8 million K (284 Å). Note that AIA observes in 193Å. Currently, we provide four sets of synchronic maps with slightly different formats as explained below (the map ranges are also shown):
- NRL EUVI Only: Carrington coordinates with 6-hour cadence. At the bottom of each frame, we display the actual EUVI-A and B images and the location of the spacecraft in the inner heliosphere. The product ends with the loss of STEREO-B in September 2014.
- NRL EUV-AIA: Same as above with the addition of AIA.
- JPL Carrington: Carrington coordinates with 12-hour cadence to match GONG and far-side HMI seismic maps. The product is mirrored from the JPL SECCHI site (see 'Similar Links' below).
- JPL Carrington Sinlat: Same as above but with sinlat projection (0-360° in Carrington longitude; -90° to 90° in latitude with a sine-latitude y-axis). The product is mirrored from the JPL SECCHI site.
STEREO/EUVI + SDO/AIA
Click on a channel below to view corresponding animations.
NRL EUVI AIA (2010/08/15 - 2015)
Channels:JPL Carrington (2010/08/15 - present) * Visual only
Channels:JPL Carrington Sinlat (2010/08/15 - present) * Visual only
Channels:STEREO/EUVI
Click on a channel below to view corresponding animations.
NRL EUVI-A and -B (2007/02/15 - 2014/09/27)
Channels:NRL EUVI AIA (284 A)
By default, the script loads the last available month. You can also select a date range using the drop-down above. After selecting the desired start date, click on the "Load Range" button to load the new images.
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Contact: Solar-Researchnull@jhuapl.edu
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Similar Links
- "All Sun" EUV Synchronic Sinlat Maps (from the JPL SECCHI Co-Is). The "All Sun" EUV Carrington maps (0-360° in Carrington longitude; -90° to 90° in latitude with a sine-latitude y-axis) are produced every 12 hours beginning in late 2010. This cadence matches the cadence of the GONG and HMI far-side seismic maps. The EUV maps are made by combining data from the two STEREO spacecraft and from the Atmospheric Imaging Assembly (AIA) on SDO.
- Yearly Synchronic Movies (from the STEREO GSFC Science Center). Year-long movies of EUVI+AIA synchronic maps in Cylindrical Equal Area projection (sine latitude vs Carrington longitude). These movies can also be found in our server and in the JPL site above.
- Synchronic EUV and Coronal Hole Maps (from Predictive Science Inc). Synchronic EUV and coronal hole (CH) maps from 6/10/2010 to 8/18/2014 at 6-hour cadence. The processing and data products are described in Caplan, Downs, and Linker (2016). The software to produce the maps is also available at the site.
Data Policy
The data and images are publicly available per the STEREO mission Data Management Plan and comprise part of the SECCHI team's higher level data products. If you use the images from this site, we would appreciate the following acknowledgement:
"The EUVI synchronic maps are generated by the SECCHI team and maintained at JHUAPL, in collaboration with NRL and JPL."
Acknowledgements
The initial concept for the NRL synchronic maps was developed by B. Sanchez-Andrade Nuño under NASA contract S-136361-Y to NRL. The EUVI-AIA products are produced at NRL by I. Uggarte-Urra. A. Vourlidas acknowledges support from NASA NNX16AH70G for the maintenance of the SECCHI data products and is grateful to the NRL SECCHI team for technical assistance. The website is supported by NASA and APL internal funds. The SECCHI data are produced by an international consortium of the NRL, LMSAL and NASA GSFC (USA), RAL and Univ. Birmingham (UK), MPS (Germany), CSL (Belgium), IOTA and IAS (France).