PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = "2019-09-01, ER, label created" RECORD_TYPE = FIXED_LENGTH RECORD_BYTES = 80 RELEASE_ID = 0001 REVISION_ID = 0000 OBJECT = INSTRUMENT INSTRUMENT_HOST_ID = MEX INSTRUMENT_ID = VMC OBJECT = INSTRUMENT_INFORMATION INSTRUMENT_NAME = "VISUAL MONITORING CAMERA" INSTRUMENT_TYPE = "IMAGING CAMERA" INSTRUMENT_DESC = " Instrument Overview =================== The Visual Monitoring Camera (VMC) was included on Mars Express originally to monitor the release of the Beagle-2 lander. In 2007, VMC was switched on again and used for almost a decade purely for outreach purposes. In 2016, collaboration with scientists from the University of the Basque Country UPV/EHU in Bilbao proved the scientific value of the data through studies of plumes (SANCHEZ-LAVEGAETAL2015). Thereafter, the VMC was given the status of a scientific instrument. The VMC is a CMOS (Complementary metal-oxide semiconductor) sensor which takes images by default in grayscale, but the VMC is fitted with a Bayer Pattern filter so that colour information may be extracted in post processing. The camera itself weighs only 430g and has a size of 65 x 60 x 108 mm. The VMC camera is able to monitor large scale atmospheric phenomena, and provides valuable context to other instruments. Science Objectives ================== The VMC addresses two of the main scientific goals of the Mars Express mission, these being atmospheric studies and surface- atmosphere interactions. The foreseen uses of VMC data are: - To survey and detect aerosols and clouds at the limb, study their seasonal dependence and their aerographical location. - Study mesoscale and dynamical atmospheric phenomena such as vortices, orographic clouds and dust storms, assessing their seasonality and interannual variability. - Study of the ice cover evolution of the polar ice caps. - Detection of phenomena in the night side of Mars, such as twilight clouds (made possible because of VMC's wide field of view). However, the usage of VMC data for scientific purposes is evolving and there may be additional scientific uses for the data not listed here. Investigators and Other Key Personnel ===================================== Science Team Lead: A. Sanchez-Lavega, Bilbao (UPV/EHU), Spain Science Operations Manager: A. Cardesin-Moinelo, Madrid, Spain Science Planning and Data Processing Support: E. Ravanis, Madrid, Spain; J. Hernandez-Bernal, Bilbao (UPV/EHU), Spain Data Processing Pipeline Development: J. Hernandez-Bernal, M. Almeida (Dias Ameida Processing and Systems) Mission Operations: S. Wood, ESOC, Darmstadt, Germany VMC Science Team: UPV/EHU University of the Basque Country Bilbao, A. Sanchez-Lavega, J. Hernandez-Bernal, R. Hueso, Teresa del Rio. INSTRUMENT OPERATION ==================== The VMC has a number of particular constraints which affect its operations. Firstly, the VMC is inclined at a 19 degree axis compared with other instruments on MEX, and secondly VMC does not obey the same data protocols as other instruments. For these reasons, the VMC cannot observe at the same time as other instruments. VMC observations are taken mainly at apocentre, before and after maintenance blocks, when other instruments are not observing. The VMC Medium Term Planning (MTP) is conducted at ESAC by the Mars Express Science Ground Segment team (ESA), when observations and pointing are scheduled and fixed. The Short Term Planning (STP) which includes the adjustments of exposure times is done at Bilbao (UPV/EHU), as of 2019. " END_OBJECT = INSTRUMENT_INFORMATION OBJECT = INSTRUMENT_REFERENCE_INFO REFERENCE_KEY_ID = "SANCHEZ-LAVEGAETAL2018" END_OBJECT = INSTRUMENT_REFERENCE_INFO END_OBJECT = INSTRUMENT END