Lifespan is 7.25 years, which includes a 3 month in-orbit commissioning phase. Sentinel-2 Characteristics CharacteristicĮach of the SENTINEL-2 satellites weighs approximately 1.2 tonnes, and is designed to be compatible with small launchers like VEGA and ROCKOT. The Sentinel-2 data provides GMES (Global Monitoring for Environment and Security) program, jointly implemented by the EC (European Commission) and ESA (European Space Agency) services related, for example, to land management, agricultural production and forestry, and monitoring of natural disasters and humanitarian operations.
The orbit is an average height of 785 km and the presence of two satellites in the mission allow repeated surveys every 5 days at the equator and every 2-3 days at middle latitudes. The satellite is equipped with an opto-electronic multispectral sensor for surveying with a sentinel-2 resolution of 10 to 60 m in the visible, near infrared (VNIR), and short-wave infrared (SWIR) spectral zones, including 13 spectral channels, which ensures the capture of differences in vegetation state, including temporal changes, and also minimizes impact on the quality of atmospheric photography. Since oxygen is critical for your brain to function properly, NIRS can assist doctors in any clinical setting where brain oxygen levels may fluctuate.SENTINEL-2, launched as part of the European Commission’s Copernicus program on June 23, 2015, was designed specifically to deliver a wealth of data and imagery. It uses infrared light to detect variations in hemoglobin oxygen levels in your blood. Near-infrared spectroscopy (NIRS) monitors your brain’s oxygen saturation.
MEG allows doctors to assess areas such as: Doctors use MEG to evaluate both spontaneous brain activity, as well as neuronal responses triggered by stimuli. This type of scan can locate and identify malfunctioning neurons in your brain. Magnetoencephalography (MEG) measures the magnetic field from neuron electrical activity. Each type of frequency appears on its own line and gives your doctor information about your brain activity. These electrodes detect electrical activity in your brain and send it to a computer where it creates a graph-like image. Before the scan, clinicians will attach small electrodes to your scalp that are attached to wires. This allows doctors to see trouble spots where glucose isn’t moving correctly.Īn electroencephalography (EEG) test measures your brain waves. Since your brain uses glucose as its primary fuel source, the tracer accumulates in areas of higher brain activity.Ī PET scan is able to see these tracers and observe how they move and accumulate in your brain.
Two types of imagery series#
MRIs display anatomic structure and fMRIs measure metabolic function.Ī computerized tomography (CT) scan is a series of X-ray images converted into cross-sectional images of your brain. It uses the magnetic field of the scanner to affect the magnetic nuclei of hydrogen atoms, so they can be measured and converted into images. These modern brain imaging techniques enable doctors to map out the regions and functions of your brain in a non-invasive way.įunctional magnetic resonance imaging (fMRI) can detect changes in blood flow and oxygen levels that result from your brain’s activity. It doesn’t require invasive steps and often simply involves laying down and being still while the scan takes place around you. One of the benefits of brain imaging is how easily it can be performed.