Information on Service 'Alma-Ata Station Neutron Monitor Data Service'

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The Alma-Ata Cosmic Ray Station operates the 18NM-64 neutron supermonitor at an altitude of 3340 meters above sea level with a geomagnetic cutoff rigidity of 6.7 GeV. The station provides real-time minute-level measurements of cosmic ray intensity and atmospheric pressure, contributing data to the international NMDB network (http://www.nmdb.eu).

This service publishes daily tables containing two columns:

The timestamps reflect actual measurement times, ensuring accurate tracking even when delayed data from previous days is incorporated into current files due to communication delays with space stations.

The data is collected and provided by the Institute of Ionosphere (https://ionos.kz/).

For a list of all services and tables belonging to this service's resource, see Information on resource 'Alma-Ata Station Neutron Monitor Data Service'

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
counts Count Average neutron counts per second, derived from one-minute measurements. ct/s arith.rate;phys.particle.neutron
obs_mjd Observed at Universal time of the observation at the detector as MJD. d time.epoch

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
counts Count Average neutron counts per second, derived from one-minute measurements. ct/s arith.rate;phys.particle.neutron
obs_mjd Observed at Universal time of the observation at the detector as MJD. d time.epoch

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
obs_time Timestamp Universal time of the observation at the detector. N/A time.epoch 20
obs_mjd Observed at Universal time of the observation at the detector as MJD. d time.epoch 20
counts Count Average neutron counts per second, derived from one-minute measurements. ct/s arith.rate;phys.particle.neutron 20
source_path Src. File this row was parsed from. N/A meta.id;meta.file 30

Citation Info

VOResource XML (that's something exclusively for VO nerds)