Data Base of Tbilisi Neutron Monitor

Tbilisi Neutron Monitor is situated in Tbilisi, Georgia
It is a project of Institute GEOPHYSIKY (IG), Giorgian Academy of Sciences

Latitude: 41.43N
Longitude: 44.48E
Altitude: 510 m
Rigidity (1965): 6.73 GV
Standard atmoshperic pressure: 965.0 mb
Barometric coefficient (2004): -0.69%/mb
SF=64 (The mean count is around 540000/hour or 9000/min,)

Dr. Demuri Bochikashvili
Laboratory of Cosmic Ray
Av. Nutsubidse 77, TBILISI, P.O. Box ?, Giorgia
E-mail Dr. Demuri Bochikashvili
E-mail Dr. Nuksar Nachkebia

Database contents of Tbilisi neutron monitor data starting from 1963 (until 1969.09 IGY, Later 18NM64-Supermonitor). The interval of accumulation: hourly from 1963; besides, 5-minute data from 1994. Database updating goes not in real time. An interactive access is possible to this database and FTP as well.

Interactive access

Data in this regime are available in graphical and in digital presentation as well. All graphical plots are given relative to February 1987.

Access by FTP

One-minute data are in directory ftp_NM1, hourly data in directory ftp_NM. Ground Level Enhancement (GLE) data are in the GLE directory. One-type data are presented in their own Format: hourly data in format C, 1-minute data in W format, and GLE data in GLE format.

There are three types of 1-minute data: neutron monitor data corrected for atmospheric pressure (C), atmospheric pressure (P), and neutron monitor data uncorrected for atmospheric pressure (U). Hourly data are presented uncorrected (U) and corrected for atmospheric pressure (P). Pressure corrected hourly data are kept as original (O) and corrected (C).