THEMIS ARTEMIS Mission accomplishments status Wiehle et al

THEMIS ARTEMIS Mission accomplishments, status Wiehle et al. 2011, JGR GRL, Special Issue, 2008 Halekas et al. 2010, SSR Tao et al. , 2011, JGR Special Issue, 2008 Bortnik et al. 2008 Science JGR special isssue on Substorms , 2011 Li et al. 2009 GRL Cover TH/GBO TH-A AGU Geophys. . Monogr. Ser. , 2012 PRL cover, 2009 Nishimura et al. 2010, Science THEMIS/ARTEMIS, Fall SWT 1 Sep. 14 -16, 2011

THEMIS ARTEMIS THEMIS/ARTEMIS, Fall SWT 2 Sep. 14 -16, 2011

THEMIS ARTEMIS • Output Number of publications per year steadily increasing Source: http: //themis. ssl. berkeley. edu/publications. shtml THEMIS/ARTEMIS, Fall SWT 3 Sep. 14 -16, 2011

THEMIS Programmatics ARTEMIS • Since Senior Review 2010: ü ü ü Ø THEMIS/ARTEMIS extended through 2014 Planetary Division has also endorsed ARTEMIS (w/ minimal funding) No new/revised contract with GSFC to account for the Science uptick Visiting scholars program in place (Quanqi Shi, Robert Michell, Marilia Samara) Next Senior Review in 2013 (bridge plus option contract planning has started). SST calibration issue is being remedied per Senior Review plans/recommendations: ü Offloaded work from Davin who is busy on Maven, SP+ ü Performed calibrations and modeling at UCLA, cleanup software in place now (Drew Turner). • THEMIS: a key player in the golden era of inner magnetosphere research ü Collaboration with RBSP (joint software with RBSP EFI/FGM, Key Params routines) ü Opportunity: Use White Sands 1 & Wallops (free) plus BGS (low cost) for 100% FS mode!!! ü Collaboration with TWINS, ERG, ORBITALS and ground (SD) teams under way • ARTEMIS ü Lunar Orbit Insertions have occurred successfully on June 27 th –July 17 th 2011 ü Planetary: LADEE conjunctions and crustal anomaly targets have been designed ü Instrument adjustments are under way - Shadow despining software (local expert is Ferdinand Plaschke) ESA/SST mode changes – will be magnetospheric only from now on • Beyond 2014: MMS conjunctions with THEMIS and ARTEMIS ü Looking into orbit adjustments to line-up during MMS era – looking amazingly good! THEMIS/ARTEMIS, Fall SWT 4 Sep. 14 -16, 2011

THEMIS ARTEMIS Propagation of “bubble-like” jets from reconnection site to near-Earth Runov et al. , 2009, 2010, 2011; Zhang et al. , 2010; Li et al. , 2011; Zhou et al. , 2011 ü ü Curved flux tube Self-similar over global scales Low density Particle energization ~3 min 300 km/s N V V=velocity direction N=flux tube normal direction THEMIS/ARTEMIS, Fall SWT 5 Sep. 14 -16, 2011

THEMIS ARTEMIS Substorm macroscale interactions can be seen from the ground [Kepko/Nishimura/Lyons]. THEMIS GBOs link Reconnection and Current Disruption models • Poleward boundary intensifications (enhanced magnetotail reconnection) supply fresh magnetotail lobe plasma to closed field lines. THEMIS All-sky imagers 2008 -02 -29 Poleward boundary intensification (A) 8: 14: 54 UT • When the new plasma has low entropy, it reaches the near-Earth plasma sheet and triggers substorm expansion • How are the dipolarization fronts interacting with each other and the (C) 8: 22: 24 UT inner magnetosphere? • • Interchange instability? Deposition of energy? THEMIS/ARTEMIS, Fall SWT North-south arc (B) 8: 18: 54 UT Poleward expansion Arc contact and onset (D) 8: 25: 00 UT Answers require both: • Kinetic exploration (FY 10/11/12) and • Global exploration (FY 13/14) … of the equatorial magnetosphere inside of 12 RE. 6 Sep. 14 -16, 2011

THEMIS ARTEMIS Non-substorm achievements: The origin of pulsating aurora in the plasma sheet THEMIS-A (P 5) Magnetic Field TH/GBO TH-A THEMIS-GBO Imager Auroral and Chorus Intensity are correlated Using coordinated satellite and ground-based all-sky observatories (GBOs) from the THEMIS mission, Nishimura et al. (Science, 2010) provide the first evidence that localized lower-band chorus waves observed at the equator, drive the pulsating aurora at a given pulsating patch in the ionosphere. The findings can also be used to constrain magnetic field models, an otherwise notoriously difficult task. THEMIS/ARTEMIS, Fall SWT 7 Sep. 14 -16, 2011

THEMIS First 10 months: Commissioning and Coast Phase Observations ARTEMIS TH-B TH-C TH-D TH-E TH-A P 1 P 2 P 3 P 4 P 5 2007 -03 -23 2007 -06 -03 Launch= 2007 -02 -17 YGSE 2007 -07 -15 XGSE 2007 -08 -30 2007 -12 -04 THEMIS/ARTEMIS, Fall SWT 8 Sep. 14 -16, 2011

THEMIS ARTEMIS First year THEMIS baseline orbit (FY 08) YGSE Tail 1 2008 -02 -02 XGSE TH-B P 1 TH-C P 2 TH-D P 3 TH-E P 4 TH-A P 5 Dayside 1 2008 -08 -08 Second year baseline orbit (FY 09) YGSE Tail 2 2009 -02 -18 THEMIS/ARTEMIS, Fall SWT XGSE Dayside 2 2009 -09 -16 Angelopoulos, 2008 Space Sci. Rev. 9 Sep. 14 -16, 2011

THEMIS ARTEMIS THEMIS/ARTEMIS, Fall SWT THEMIS Extension (FY 10, 11, 12) 10 Sep. 14 -16, 2011

THEMIS ARTEMIS Electron beams accelerated by asymmetric wake potential ARTEMIS P 1 electron spectra (a, b) and wake potential (c) inferred from them Potential, V [Note: VC>VA>VB] [Halekas et al. , SSR, 2010] THEMIS/ARTEMIS, Fall SWT 11 Sep. 14 -16, 2011

THEMIS ARTEMIS orbits ARTEMIS Note: P 1 retrograde, and P 2 prograde. P 2 P 1 Here P 1 monitors the primary field while P 2 measures the nightside induction field. Relay conjunctions permit more monitoring time at periapsis, for periods of up to an hour. THEMIS/ARTEMIS, Fall SWT 12 Sep. 14 -16, 2011

THEMIS ARTEMIS THEMIS/ARTEMIS, Fall SWT ARTEMIS’s latest design satisfies LADEE conjunctions 13 Sep. 14 -16, 2011

THEMIS ARTEMIS THEMIS/ARTEMIS, Fall SWT ARTEMIS’s design has optimized observations of crustal anomalies. 14 Sep. 14 -16, 2011

THEMIS probe separations ARTEMIS FY 11/12 2010 -04 -10 00: 00 Z FY 13/14 2010 -04 -10 00: 00 Tail or Dayside Z P 4 P 5 P 4 P 3 X or -X Inner magnetosphere P 3 P 5 P 3 FY 13: 4 -8 -12 hrs FY 14: 8 -8 -8 hrs THEMIS/ARTEMIS, Fall SWT 15 Sep. 14 -16, 2011

THEMIS Magnetotail from kinetic scales: FY 11/12 ARTEMIS - Interaction of reconnection jet (or dipolarization front) with the inner magnetosphere and its role in triggering substorms THEMIS Burst data Prime mission result: Reconnection starts first Bz z P 3 P 2 (n. T) P 1 Bz Jy P 1 x (n. T) Bz FY 11/12 objective: Physics of reconnection-inner magnetosphere interaction X P 4 z x P 5 THEMIS/ARTEMIS, Fall SWT (n. T) E 16 Jy ~ 100 n. A/m 2 P 3 (Hz) electrons (f) z P 3 P 2 Z P 3 intense waves P 3 30 ke. V 95 ke. V Runov et al. [2010] Sep. 14 -16, 2011

THEMIS ARTEMIS The Galaxy 15 knock-out: AR-TH storm time conjunction Galaxy 15: damaged on Apr 5, 2010 was only recovered on Apr 4, 2011 THM: P 5 ART: P 1 Connors et al. , 2011 Ann. Geophys. ART: P 2 THM: P 3, 4, 5 THM: P 4 Connors et al. , 2011 (Ann. Geophys. ): GOES field overdipolarized thanks to incoming flow bursts. How were particles accelerated? If only we had THEMIS in dispersed orbits, together RBSP there, we would now know! THEMIS/ARTEMIS, Fall SWT 17 ART: P 2 ART: P 1 Sep. 14 -16, 2011

THEMIS ARTEMIS Magnetotail from global scales: FY 13/14 - Cross-magnetotail width of reconnection and energetic particle injection regions - Global evolution of energetic particle injections during substorms 3 -6 RE THEMIS/ARTEMIS, Fall SWT 18 Sep. 14 -16, 2011

THEMIS ARTEMIS MMS era (FY 13/14): THEMIS observes RX drivers A tetrahedron within a tetrahedron Resonant orbits: alignments at solar max FY 14/15 2010 -04 -10 00: 00 Z FY 15/16 MMS Phase 2 or 1/3 P 4 P 3 X or -X MMS P 2 X P 1 Y P 5 MMS THEMIS/ARTEMIS, Fall SWT P 5 19 Sep. 14 -16, 2011

THEMIS ARTEMIS Data Collection and Distribution RBSP ERG (EFI/FGM, others: Kp) THEMIS GBOs THEMIS/ARTEMIS PROBES (GOES, SPIDR) Ancillary GMAG Indices NOAA (AE Index, Dst, Kp) (MACCS, Carisma, Greenland, GIMA) Super. DARN (GOES, SPIDR) T-DAS WWW Ground calibration Software depository CDF and Cal. Files NASA (CDA, SSC) MIRROR EUROPE THEMIS/ARTEMIS, Fall SWT MIRROR JAPAN MIRROR TAIWAN 20 Researcher Sep. 14 -16, 2011

THEMIS ARTEMIS Backup slides THEMIS/ARTEMIS, Fall SWT 21 Sep. 14 -16, 2011

THEMIS ARTEMIS • • All data/plots available, calibrated 1 day after downlink (http: //sprg. ssl. berkeley. edu) Routine data distribution in 4 ways – – • CDF downloads from SPDF, UCB, 4 mirror sites HTTP and FTP socket connection through software (seemless) Bundled downloads via UCB site (per instrument, spacecraft, product) On-line at VMOs, and PDS (data is SPASE compatible). Free, powerful software distribution, on-line docs, tutorials – – • • • Data Processing and Community Support IDL-based, platform independent Community demos biannually at GEM meetings + trainings on demand On-line Support (THEMIS_Science_Support@ssl. berkeley. edu) SVN configuraton-controlled: distributed, grass-roots effort Community training sessions twice a year (GEM and AGU) THEMIS/ARTEMIS, Fall SWT 22 Sep. 14 -16, 2011

THEMIS ARTEMIS THEMIS Software § The main goal of the THEMIS software design is to provide researchers with tools to handle multiple missions, spacecraft, and instruments using the same interface. § THEMIS software is free and available at the mission web site http: //themis. ssl. berkeley. edu/software. shtml § The software is an IDL-based library of utilities § Platform independent – works on Windows, UNIX/Linux, Mac. OS § Crib sheets also provided § Two interfaces are available § Graphical User Interface § Command-line (based on TPLOT package). § Software enables users to: § § Download raw L 1 and/or calibrated L 2 data Data Analysis Ingestion of data from other missions Publication Quality Plots § Software distribution includes many functions written by community and is open for contributions. THEMIS/ARTEMIS, Fall SWT 23 Sep. 14 -16, 2011