Japanese Sounding Rocket Activity in Scandinavia

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1 Japanese Sounding Rocket Activity in Scandinavia - Importance of ground-based support - Takumi Abe Institute of Space & Astronautical Science Japan Aerospace Exploration Agency NIPR Symposium on Conjugate Aurora and SuperDARN Feb 17,

2 Various ways of international collaboration in the rocket experiment Launch Japanese rocket in a foreign country (Japanese SS-520-2, S , S etc.) Launch foreign rocket in Japan Provide Japanese science instrument for foreign rocket experiment (Norwegian ICI-2, ICI-3, etc.) Invite foreign science instrument to Japanese rocket (Japanese S &32, S etc.) Ground-based support for Japanese rocket campaign in foreign country 2

3 Launch of Japanese sounding rocket in Scandinavia Rocket Launch site Date Target S Andøya (Norway) Feb-1990 Aurora S Andøya (Norway) Feb-1991 Aurora S Andøya (Norway) Feb-1994 Aurora S Andøya (Norway) Nov-1994 Aurora S Andøya (Norway) Dec-1994 Aurora SS Svalbard (Norway) Dec-2000 Ion Outflow S Andøya (Norway) Dec-2004 Thermosphere S Andøya (Norway) Jan-2009 Thermosphere Science targets ; Pulsating aurora, Ozone chemistry affected by the auroral activity, Fine structure of the auroral arc, the cusp ion outflow etc. Unique opportunity for Japan to have such an experiment in the high latitude region NIPR Symposium on Conjugate Aurora and SuperDARN Feb 17,

4 S experiment (Dec, 2004) - DELTA Campaign - - Coordinated sounding rocket and ground-based observations for the polar lower thermosphere study - Motivation : The dissipation of energy controlling the temperature plays an important role in the dynamics and energetics of the polar lower thermosphere. Scientific objective : to study the upper atmospheric dynamics and energetics excited by the intense auroral energy input in the high-latitude lower thermosphere. Andøya Rocket Range Rocket Neutral Temp & Density Rocket Launch: 0:33UT 13 Dec 2004 In situ Radio DELTA Optical FPI Neutral Temp & Wind EISCAT Tromsø EISCAT radar Plasma E-field FPIs Skibotn & KEOPS 4

5 Ground-based support for DELTA campaign Location Instruments Parameter Institute Country All sky imager nm ARR Norway Magnetometer Magnetic field TGO, ARR Norway Aodøya Sodium Lidar Na density, wind CSU United States or ALOMAR Tromsø Skibotn MF radar Wind, Ne ARR, NiCT, IAP Norway, Japan, Germany Ionosonde Ne ALOMAR Norway Meteor radar Wind, Tn IAP & ARR Germany, Norway EISCAT Radar Te, Ne, Ti, Vi, Vn STEL, NIPR Japan, Europe All sky imager white light U of Calgary Canada Photometer Meteor radar 428, 630, 671, 845nm STEL Japan Wind, Temperature NIPR, TGO, EISCAT Japan, Norway, etc FPI Wind/Temp, Lancaster U UK All Sky Imager Aurora Lancaster U UK FPI Wind, Temp UCL UK, Sweden Kiruna ALIS aurora tomography Aurora structure NIPR, IRF Japan, Sweden Svalbard Aurora Spectrography Aurora spectrum NIPR Japan Hankasalmi etc. SuperDARN Convection International collaboration NIPR Symposium on Conjugate Aurora and SuperDARN Feb 17,

6 Rocket and EISCAT radar data B H E N e T i 6

7 ICI-2 Campaign (December, 2008) NIMS Moen et al., JGR, 2002 NIPR Symposium on Conjugate Aurora and SuperDARN Scientific objective: To investigate the formation mechanisms of decametre scale plasma irregularities serving as backscatter targets for HF coherent radars This mechanism can only be resolved by the combination of detailed in-situ measurements from sounding rockets, and the well-developed network of ground radar and optical instruments. Onboard instruments: 1. Fixed Biased Probe (JAXA) - N e perturbation 2. LEP-ESA (JAXA) - low energy electron flux 3. Solid state particle spectrometers (Univ of Bergen) 4. Electric field and wave (Univ of Oslo) 5. New cylindrical Langmuir probe (Univ of Oslo) 6. Rocket Attitude sensors (Univ of Oslo) - Gyro, Sun sensor, Magnetometer Feb 17,

8 Ground-based support for ICI-2 Campaign All Sky Imager (557.7, 630nm) SuperDARN (CUTLASS etc.) EISCAT Svalbard radar Meridian Scanning Photometer Magnetometer ICI-2 rocket traversed plasma irregularity region Launch: 10:35:10 UT, 5 Dec 2008 Elevation: 81 deg Azimuth: 196 deg flight time : 575 sec apogee : km 8

9 SuperDARN data Rocket position Velocity (m/s) Power (db) The SuperDARN convection pattern indicates that ICI-2 rocket encountered the poleward boundary of the cusp convection channel in the dusk cell. ICI-2 rocket intersected a poleward moving auroral form/patch structure during its up-leg, and descended onto an inverted-v structure near the poleward boundary of the cusp proper, also associated with elevated electron density. 9

10 EISCAT Svalbard (32m & 42m) radar data Velocity shear at 10:32 UT 10

11 Sounding rocket experiment in Antarctica Rocket Number MaxAltitude Launch date MT-135JA 11 ~70 km S-160JA 4 ~88 km S-210JA 31 ~130 km S-310JA 8 ~220 km Feb, 1970 ~ Sept A large number of Japanese sounding rockets were launched in Antarctica! We would like to thank all the staffs of JARE. 11

12 Conclusion We would like to appreciate the ground-based support led by scientists at NIPR and STEL of Nagoya University for Japanese sounding rocket campaign in Scandinavia area. We strongly expect similar support in the future sounding rocket campaign. We also expect a proposal of the sounding rocket experiment by people at NIPR and STEL, which will hopefully bring mutual benefit in science and promotion of their activities. 12