Princess Sirindhorn Neutron Monitor
Real-Time Data

Neutron Monitor Homepage
About Real-Time Data and Data Levels

The Princess Sirindhorn neutron monitor at Doi Inthanon is operated by Mahidol University, Chulalongkorn University, and Ubon Ratchathani University

Data Levels of the Princess Sirindhorn Neutron Monitor
Level Data Preparation Recommended Use

Downloaded automatically from station, standard normalization factors applied, standard pressure correction applied. No quality control has been performed.

Should not be used for scientific research purposes. Use of these data for any purpose is "at your own risk."


Data subjected to basic quality tests. Major defects are corrected or flagged as gaps.

Suitable for scientific research. However, revisions to data (usually minor) may occur subsequently.


Data have passed a comprehensive "annual" review. Subtle anomalies and long-term changes in detector efficiency, barometer accuracy, etc. have been identified and corrected.

Suitable for scientific research.

Archived final and preliminary data are available online.