THEMIS
Swales was also responsible for designing and building the Electrical Ground Support Equipment (EGSE) used for monitoring the probes during all phases of pre-launch activities, including use at the launch site.Due to weather conditions occurring on 13 February 2007, fueling of the second stage was delayed, and the launch pushed back 24 hours.On 16 February 2007, the launch was scrubbed in a hold at the T-4 minute point in the countdown due to the final weather balloon reporting a red, or no-go condition for upper-level winds.By 03:07 UTC, on 18 February, mission operators at the Space Sciences Laboratory (SSL) of the University of California, Berkeley, commanded and received signals from all five spacecraft, confirming nominal separation status.Tail science is performed in the winter of the northern hemisphere because the ground magnetometers that Themis scientists correlate the satellite data with have relatively longer periods of night.[10][11] NASA also likened the interaction to a "30 kiloVolt battery in space", noting the "flux rope pumps 650,000 Ampere current into the Arctic![14] Vassilis Angelopoulos of the University of California, Los Angeles, who is the principal investigator for the THEMIS mission, claimed, "Our data show clearly and for the first time that magnetic reconnection is the trigger".[15] On 19 May 2008, the Space Sciences Laboratory (SSL) at University of California, Berkeley announced NASA had extended the THEMIS mission to the year 2012.NASA officially approved the movement of THEMIS-B and THEMIS-C into lunar orbit under the mission name "ARTEMIS" (Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun), which was revised to "THEMIS-ARTEMIS" in 2019.
Thermal Emission Imaging SystemThemis (disambiguation)ARTEMIS (disambiguation)Magnetospheric researchCOSPAR IDSATCAT no.Swales AerospaceDelta II 7925-10CCape CanaveralSLC-17BBoeing Defense, Space & SecurityGeocentric orbitHighly Elliptical OrbitPerigee altitudeApogee altitudeInclinationPeriodNeil Gehrels Swift ObservatoryEarth's magnetospheresubstormsaurorasEarth's polesacronymThemisDelta IIlaunch vehiclefluxgate magnetometerelectrostatic analyzersearch-coil magnetometerhydrazineSPEDASOrbital ATKNorthrop GrummanBeltsville, MarylandUniversity of California, BerkeleyEarth Observing-1Jet Propulsion LaboratoryPasadena, CaliforniaSTEREOSpace Sciences LaboratoryUnited Launch AllianceLaunch Services ProgramFast Auroral SnapshoT ExplorerSmall Explorer programapogeeaurora borealisnorthern hemisphereupper atmosphereBirkeland currentsKristian Birkelandmagnetic reconnectionVassilis AngelopoulosUniversity of California, Los Angeleslunar orbitARTEMISArtemis programEuropean Geostationary Navigation Overlay ServiceLissajous orbitLagrange pointField-programmable gate arrayFast Fourier transformCentre national de la recherche scientifiqueground stationsNorth AmericaList of active Solar System probesList of heliophysics missionsList of objects at Lagrangian pointsList of Solar System probesList of space telescopesTimeline of Solar System explorationSPEDAS software for space physics dataAdvanced Composition ExplorerCassini–HuygensClusterDouble StarHeliosMESSENGERVan Allen ProbesSolar Dynamics ObservatorySolar and Heliospheric ObservatorySolar Maximum MissionSolar OrbiterParker Solar ProbeTransition Region and Coronal ExplorerUlyssesExplorer programpublic domainBibcodeLi, WenWayback MachineSpacecraft missionsExplorationAmericanApolloLunar OrbiterLunar PrecursorPioneerRangerSurveyorChineseChang'eIndianChandrayaanJapaneseJapanese Lunar Exploration ProgramSouth KoreanKorean Lunar Exploration ProgramRussianLuna-GlobSovietCrewedLunokhodCAPSTONEChandrayaan-2Chang'e 5-T1DanuriLunar Reconnaissance OrbiterQueqiao 1 and 2Tiandu-1ICUBE-QChang'e 3Blue Ghost Mission 1Hakuto-R Mission 2Yutu-2TENACIOUSArgoMoon