A dataset provided by the European Space Agency

Name ExoMars 2016 FREND Calibrated Data Product Collection
Mission ExoMars16
URL https://archives.esac.esa.int/psa/ftp/ExoMars2016/em16_tgo_frd/data_calibrated
DOI https://doi.org/10.57780/esa-b1o13ax
Description

FREND

The Fine Resolution Epithermal Neutron Detector (FREND) is an instrument installed onboard the Trace Gas Orbiter (TGO) of the joint Roscosmos-ESA ExoMars mission. Comprising a Neutron detector and a separate module, the Dosimeter, its main scientific goals are:

  • Measuring the epithermal and fast neutron fluxes from the Martian surface with high spatial resolution of about 40 km (linear pixel size);
  • Creating maps of Hydrogen concentration in the Martian soil with 40 km spatial resolution;
  • Monitoring of neutrons and charged particles fluxes at broad energy ranges during periods of quiet Sun and during Solar Particle Events;
  • Measuring fluxes and fluences of neutrons and charged particles at broad energy ranges and equivalent radiation doses during periods of quiet Sun and during Solar Particle Events;
  • Update radiation environment data in interplanetary space and on the surface of Mars to be used for spacecraft radiation analysis and manned flight radiation safety analysis
The Principal Investigator is Igor Mitrofanov, Space Research Institute (IKI), Russian Academy of Sciences.

The calibrated_data collection

The calibrated data collection contains the calibrated science data from both FREND Neutron detector and the Dosimeter. Physically the collection is organised by science phase and then orbit range in groups of 100 orbits.
Calibrated FREND Neutron detector products are created by IKI and delivered to the PSA every 6 months for a period of 6 to 12 months before that. Public access to these data for the community is provided at time of delivery.
Calibrated FREND Dosimeter products are created by SRTI-BAS, Sofia, and delivered to PSA every 6 months for a period of 6 to 12 months before that.
Public access to these data for the community is provided at time of delivery.
A description of the calibrated data products is given in the FREND Experiment to Archive Interface Control Document (EAICD) and its Annex, available under the Documents tab in the PSA user interface or via the Document Collection on the PSA ftp page (http://archives.esac.esa.int/psa/ftp/ExoMars2016/em16_tgo_frd/document).
A quick start guide can also be found at: https://issues.cosmos.esa.int/socciwiki/display/PSAPUB1/ACS+Quick+Start+Guide.

Instrument FREND
Temporal Coverage 2016-03-05T00:00:00Z - 2030-12-31T23:59:59Z
Version 11.1
Mission Description

ExoMars 2016 Mission Overview

ExoMars 2016 was launched in March 2016 and consists of the Trace Gas Orbiter (TGO) and Schiaparelli, an entry, descent and landing demonstrator module. The primary goal of the mission is to detect trace gasses in the Martian atmosphere in particular to follow up on earlier detections of Methane.
Schiaparelli, the technology demonstration lander, did not reach the surface, therefore the only data archived was from the DREAMS instrument, which was obtained during the cruise phase of the mission. The Trace Gas Orbiter (TGO) entered science operations at Mars in April 2018 and has been operating nominally since. It has 4 instruments, CaSSIS, a 4 colour push frame camera, FREND, an epithermal neutron detector, and ACS and NOMAD which are high resolution spectrometers covering the UV to thermal IR range optimised for atmospheric studies. All instruments continue in good health apart from the Thermal Infrared (TIRVIM) channel on ACS.
TIRVIM stopped working on December 3rd, 2019 due to HW failure. Since then, it has been kept on to ensure thermal mode of the ACS but without producing science data. Housekeeping data is still being generated and archived as of today.

Mission Phases

Start TimeAcronymName
2016-03-14T00:00:00.000necpNear Earth Commissioning
2016-04-17T00:00:00.000icpCruise
2016-10-16T00:00:00.000mampMars Approach and Orbit Insertion
2016-10-21T17:53:53.000maopMars Arrival Orbit
2017-03-15T11:58:45.000apAerobraking
2018-03-09T03:22:54.000cvpCommissioning and Verification
2018-04-21T13:49:13.000pspScience Phase
Creator Contact Igor Mitrofanov
Date Published 2023-02-28T00:00:00
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 28/02/2023, ExoMars 2016 FREND Calibrated Data Product Collection, 11.1. https://doi.org/10.57780/esa-b1o13ax