Satellite-based Instruments
SDO | Solar Dynamics Observatory

The Solar Dynamics Observatory (SDO) is a NASA mission which has been observing the Sun since 2010.
The spacecraft includes three instruments:
 HMI (Helioseismic and Magnetic Imager): next-generation version of the SOHO|MDI instrument, studies solar variability and characterizes the Sun's interior and the various components of magnetic activity.
 AIA (Atmospheric Imaging Assembly): provides continuous full-disk observations of the solar chromosphere and corona in seven extreme ultraviolet (EUV) channels, spanning a temperature range from approximately 20,000 Kelvin to in excess of 20 million Kelvin.
 EVE (Extreme Ultraviolet Variability Experiment): measures the Sun's extreme ultraviolet irradiance with improved spectral resolution, "temporal cadence", accuracy, and precision over preceding measurements.

The HMIDD is the sunspot catalogue based on the mentioned HMI instrument where we process digital observations (fits images) made by HMI for software-based measurement and calculations (notation in catalogue: SHMI).

Related sites: SDO Home Page or Wikipedia, and access to the SDO images at the Joint Science Operations Center (JSOC) - Science Data Processing (SDP).


SOHO | Solar and Heliospheric Observatory

The Solar and Heliospheric Observatory (SOHO) is a joint project of international cooperation between the European Space Agency (ESA) and NASA, launched on December 2, 1995.
The spacecraft includes twelve instruments, from these we mention two instruments:
 MDI (Michelson Doppler Imager) and EIT (Extreme UV Imaging Telescope) which's digital observations are processed in our projects.

The SDD is the sunspot catalogue based on the mentioned MDI instrument where we process digital observations (fits images) made by MDI for software-based measurement and calculations (notation in catalogue: SOHO).

Related sites: SOHO Home Page or Wikipedia, and access to the SDO images at the Joint Science Operations Center (JSOC) - Science Data Processing (SDP).

Ground-based Observatories
Kanzelhöhe Obszervatórium (Villach, Austria)

Kanzelhöhe Observatory (notation in catalogue: KANZ) continuously publish solar observations and also create solar drawings of the Sun surface.
 For the DPD terrestrial sunspot catalogue the Kanzelhöhe Observatory"s observations are used most of times during the software-based measurements and calculations to making of the data.

Related sites: Kanzelhöhe Observatory for Solar and Environmental Research.


Royal Observatory of Belgium (Brussel, Belgium)

The Solar Influences Data Analysis Center (SIDC) is the solar physics research department of the Royal Observatory of Belgium. The SIDC includes the World Data Center for the sunspot index and the ISES Regional Warning Center Brussels for space weather forecasting.
 Solar observations available by the project The Uccle Solar Equatorial table (USET) (notation in catalogue: UCCL), and downloaded for the DPD terrestrial sunspot catalogue to making of the data.

Related sites: Solar Influences Data Analysis Center (SIDC), Royal Observatory of Belgium.


INAF-Catania Astrophysical Observatory (Catania, Italy)

This Catanian Solar Observatory (notation in catalogue: CATA) is located in Catania, Sicily, Italy.
 We use Catanian Solar Observations for the DPD terrestrial sunspot catalogue to making of the data.

Related sites: Catania Solar Observations.


Solar Observatory NAOJ (Mitaka/Tokyo, Japan),

A Solar Observatory, NAOJ (National Astronomical Observatory of Japan) is an observer station in Mitaka (notation in catalogue: MITA).  Their observations are also used for the DPD terrestrial sunspot catalogue to making of the data.

Related sites: Solar Observatory, NAOJ.


Mauna Loa Solar Observatory (Hawaii, USA)

Mauna Loa Solar Observatory is a observer station on Havaii Island (notation in catalogue: MLSO), has a telescope PSPT (Precision Solar Photometric Telescope) and its observations are available for download, so these images another option for the DPD terrestrial sunspot catalogue to making of the data.

Related sites: Mauna Loa Solar Observatory and PSPT page.

Thanks to all for support!

Heliophysical Observatory
Address: 4026 Debrecen, Poroszlay út 6.
Postal: 4010 Debrecen Pf. 30.
E-mail: (user)@csfk.mta.hu
Phone: +36-52-311-015

Konkoly Thege Miklós Astronomical Institute
Address: 1121 Budapest, Konkoly Thege Miklós út 15-17.
Postal: 1525 Budapest Pf. 67.
E-mail: (user)@csfk.mta.hu
Phone: +36-1-391-9320

Show-up Google map!