slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
N. André , I. Mueller- Wodarg , P. Garnier, P. Louarn PowerPoint Presentation
Download Presentation
N. André , I. Mueller- Wodarg , P. Garnier, P. Louarn

N. André , I. Mueller- Wodarg , P. Garnier, P. Louarn

118 Views Download Presentation
Download Presentation

N. André , I. Mueller- Wodarg , P. Garnier, P. Louarn

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Jupiter AvailableDatasets N. André, I. Mueller-Wodarg, P. Garnier, P. Louarn RPWI Kick-Off Meeting, Uppsala, Sweden, November 26-27 2009

  2. EJSM: MAGNETOSPHERIC AND PLASMA SCIENCE • 73 kg core payload: JEO Instruments Radio Science Laser Altimeter Ice Penetrating Radar VIS-IR Spectrometer Camera Package Narrow Angle Camera Thermal Instrument UV Spectrometer Ion & Neutral Mass Spectrometer (sputtering) Magnetometer Particle and Plasma Instrument JGO Instruments Ka-band Transponder + Ultra Stable Oscillator Laser Altimeter Sub-surface Radar Sounder (radio noise, TEC?) Wide Angle and Medium Resolution Camera Narrow Angle Camera VIS/IR Hyperspectral Imaging Spectrometer Sub-millimeter wave sounder UV Imaging Spectrometer (aurorae, Io torus) Magnetometer Plasma Package + Ion & Neutral Mass Spectrometer Radio and Plasma Wave Instrument Planetary Fields Imaging MAPS

  3. AVAILABLE DATA AT JUPITER 1. Data 2. Models3. Radiation Pioneer 10/11 MAG PA CPI/CRT/GTT D&G+ONERA Voyager 1/2 MAG PLS LECP/CRS PWS D&G+ONERA UlyssesMAG SWOOPS EPAC URAPIo torus (QTN) (Moncuquet, PhD) Galileo MAG PLS EPD/HIC PWSMagnetic FieldGIRE (JPL) Radio Science Cassini/Huygens MAG CAPS MIMI RPWS Radio Spectrum New Horizons SWAP PEPSSI Source: NASA/ESA Source: NASA/PDS, APL, … Limited to archivingalone, not always L2 parameters A few radio occultation data at PDS, but limited to Jupiter and Io (contact Kliore)

  4. AVAILABLE RADIO DATA AT JUPITER: SPACE-SEGMENT Cecconi, B., N. André, and the EJSM-EM Sensorstudy Team EJSM Workshop #2, APL, 07/2009

  5. AVAILABLE RADIO DATA AT JUPITER: DECAMETRIC (inputs from H. Rucker, 2008) Ukrainian T-shaped Radio telescope UTR-2, Kharkov, Ukraine The Ukrainian T-shaped Radio telescope, second modification (UTR-2) is the world's largest radio telescope at decameter wavelengths. The UTR-2 comprises 2040 array elements in two arms: north-south (1800×60 m) and west-east (900×60 m). It has a collective area of 150,000 square meters, and a resolution of about 40'×40' at the middle frequency 16.7 MHz. The operating frequency range is 10-28 MHz. The sensitivity is about 10 Jansky. The telescope is a part of the Ukrainian decametric VLBI system URAN, which includes another four radio telescopes of smaller size. The system has bases from 40 to 900 km. Corresponding data archive: Space Research Institute, Graz, Austria Involved personnel:Alexander KONOVALENKO Observatoire de Nancay, Réseau Décamétrique Nançay The decametric array of Nancay (ReseauDecametriqueNancay, RDN) is dedicated to the study of the electromagnetic radio emission of Jupiter, the sun and the stars. The instrument operates between 10-80 MHz, and consists of 144 helical antennas, distributed over an area of 10,000 square meter. The 8 conducting wires on each antenna have been wound in a spiral pattern on a conical surface. They are wound in either a left- or a right-handed winding spiral pattern, making them sensitive to either left- or right-hand circularly polarized radio waves. Available data:Jupiter-Quicklooks, gif-files, RHP/LHP, 10-40 MHz, from 1990-2008: Probability of occurrence of Io control emissions of Jupiter for site of Nancay, 1990-2008: Involved personnel:Philippe ZARKA, Alain LECACHEUX

  6. AVAILABLE RADIO DATA AT JUPITER: DECAMETRIC (list not exhaustive) University of Florida Radio Observatory Log-spiral Array: The main antennas used at UFRO for monitoring the Jovian Decametric Emission are two arrays of conical log spiral elements. Each array has eight elements; one array is right-hand and the other left-hand circularly polarized. Each conical log spiral element (TP) is about 8 meters tall and has a diameter of about 5 meters at the base. The TP is a broad band element and has been designed to work over a wide range of frequencies. For monitoring the Jovian Decametric Emission the UFRO TP arrays are used in the frequency range from 18 to 40 MHz. The arrays have a fixed beam array in the E-W direction but it can be phase-steered in the N-S direction. The E-W half-power beam width is about 90 degrees and allows the observation of Jupiter for a total of about 6 hours (+/- 3 hours around transit). Available data: Involved personnel:C.A. HIGGINS <>, F. REYES <> LOFAR (Low Frequency ARray) LOFAR is a (future) radio telescope network, using an array of simple omni-directional antennas centered at Exloo, NL, with planned outpost radio stations in Germany (part of them already deployed), France, UK, Poland, Italy, and other EU countries. LOFAR consists of a large number of distributed low-cost wire antennas and will make observations in the frequency ranges 30–80 MHz, and 120–240 MHz, with the intended French LOFAR superstation (LSS) the frequency is extended down to 10 MHz. Further personnel involved in (low-frequency) radio astronomy:H.O. RUCKER, M.Y. BOUDJADA, K. IMAI, P. ZARKA

  7. AVAILABLE RADIO DATA AT JUPITER: SYNCHROTRON DATA Santos-Costa and Bolton, JGR, 2008 VLA observations made at various wavelengths (e.g., 20 and 6 cm)

  8. Next year: • Proposal for a Jupiter Plasma Science Archive at CDPP 1. Visualization editor 2. Download data AMDA (Automated Multi-DatasetAnalysis) 3. Parameter editor 4. External data 5.Visual search 6. Conditional search 7. Time-Table manager

  9. EJSM: RADIO (Zarka & Cecconi, JGR, 2004) • 73 kg core payload: Cassini RPWS Data

  10. EJSM: MAGNETOSPHERE • 73 kg core payload: 4x103 (Io torus) <10-3 (outer magnetosphere) cm-3 Richards et al., AGU, 2003 Galileo PWS observations Barnhart et al., JGR, 2009 Average densities at the center of the current sheet: @20 Rj: 1 cm-3 @120 Rj: 0.01 cm-3 Jupiter Ganymede Orbiter: 10-3 (10-4)-10 (102) cm-3

  11. EJSM: CALLISTO • 73 kg core payload: Ionospheric densities : Density above 104 cm-3 for very close flybys (< 50 km) Galileo Callisto Flybys, Kliore et al., JGR, 2002 Radio occultation data (2.5 GHz, S-band)

  12. EJSM: GANYMEDE A radio source • 73 kg core payload: Ionospheric densities : Observed density: ~2x102 cm-3@ ~260 km Inferred density: 4x102 cm-3 @ surface Upper limit: 4x103 cm-3 @ surface (radio occultations, Kliore et al., 1998) Ion temperature: 1-3 eV (Frank et al., GRL, 1997) Galileo Ganymede Flybys Eviatar et al., PSS, 2001 Gurnett et al., Nature, 1996

  13. EJSM: GANYMEDE Galileo PWS data

  14. Galileo PWS Data Das2 software from Iowa EJSM: GANYMEDE