The AURORAL PROBE with its subsatellite was launched on 29 August 1996, also to the 65 degrees inclination orbit, but with the apogee of 20 000 km above the northern auroral zone and polar cap.
Two different auroral imagers are installed on the Auroral probe main satellite. These imagers are aimed to provide the two-dimensional global patterns of auroral phenomena and their time development. This allows to place in situ measurements from the two probes in the global geophysical perspective of large-scale magnetospheric processes.

Interball Auroral Probe : On-board Experiments

PLASMA

SKA-3
Spectra of electrons and ions 0.03 < E < 15 keV, Anisotropy of electrons and ions (M = 1, 4, 16),  30 < E < 500 keV/Q
Yu.GALPERIN, R.KOVRAZHKIN, A.KUZMIN, F.SHUISKAYA IKI, Moscow, Russia

ION
Electron and ion spectra and anisotropy (M = 1, 2, 4, 16),  0.005 < E < 20 keV/Q
J.A.SAUVAUD CESR, Toulouse, France - R.A.KOVRAZHKIN, K.AFANASIEV IKI, Moscow, Russia

PROMICS-3
Ion composition (M = 1-32) and 3-D energy distribution 10 eV < E < 30 keV/Q
I.SANDAHL IRF, Kiruna, Sweden - N.PISSARENKO, E.DUBININ IKI, Moscow Russia - H.KOSKINEN, T.PULKKINEN FMI, Helsinki, Finland

THERMAL PLASMA

HYPERBOLOID
Ion composition and 3-D distribution functions M = 1-32 (with H+, He+, O++, O+ routinely), 0.1 < E < 80 eV
J.J.BERTHELIER CETP Saint Maur, France - Yu.GALPERIN, T.MULIARCHIK IKI, Moscow, Russia

KM-7
Temperature of cold electrons T < 10 eV
J.SMILAUER Inst. of Atm. Physics. CAS, Prague, Czech. Republic - V.AFONIN IKI, Moscow, Russia

ALPHA-3
Thermal plasma ion flux E < 25 eV/Q
V.BEZRUKIKH IKI, Moscow, Russia

WAVES AND FIELS

IMAP-3
Magnetic field (three components) Range 1 ÷ ± 70 000 nT, band 0-10 Hz
I.ARSHINKOV SDS, Sofia, Bulgaria - L.ZHUZGOV, V.STYAZHKIN IZMIRAN, Troitsk, Russia

IESP-2M
DC electric field and ULF waves (0.1-30 Hz)
S.PERRAUT CETP Velizy, France - M.MOGILEVSKY IKI, Moscow, Russia

POLRAD
Auroral Kilometric radiation (4 kHz - 2 MHz)
J. HANASZ, (Space Res. Centre PAS - Torun, Poland) - R. SCHREIBER (Copernicus Astr. Centre PAS - Torun, Poland) - H. DE FERAUDY (CETP/CNRS - Velizy, France)

MEMO
Electromagnetic waves in wide band (quantitative analysis) < 240 kHz
F.LEFEUVRE LPCE Orleans, France - M.MOGILEVSKY IKI, Moscow, Russia

NVK-ONCH
VLF electromagnetic waves 20 Hz - 20 kHz
A.GOLJAVIN IZMIRAN, Troitsk, Russia - M.MOGILEVSKY IKI, Moscow, Russia

ENERGETIC PARTICLES

DOK-2
Energy spectra, angular distributions and time variations of electrons (E = 20-1000 keV)
K.KUDELA Inst. of Experim. Phys. SAS, Kosice, Slovakia - V.LUTSENKO IKI, Moscow, Russia - E.SARRIS University of Thrace, Xanthi, Greece

S/C POTENTIAL CONTROL

RON
Space electric potential control by two ion beams (N2+, In+). Ion beam currents Ibeam = 0-15 µA
W.RIEDLER, K.TORKAR Space Res. Inst. Austrian Acad. Sci., Graz, Austria - R.SCHMIDT ESA/ESTEC, Nordwijk, The Netherlands - Yu.GALPERIN, M.VESELOV IKI, Moscow, Russia

OPTICAL OBSERVATIONS

UVAI
UV auroral imager (140 - 160 nm)
L.COGGER Univ. of Calgary, Canada - Yu.GALPERIN, M.VESELOV IKI, Moscow, Russia

UVSIPS
UV auroral oxygen emissions 130.4, 135.6, 149.3 nm in the footprint region of the Earth's atmosphere
A.KUZMIN IKI, Moscow, Russia - K.PALAZOV Observ. Yuri Gagarin, Stara Zagora, Bulgaria

TECHNOLOGICAL EXPERIMENTS

RD-1M
Dosimetric measurements
V.BENGIN, V.PETROV IMBP, Moscow, Russia - S.KUZNETSOV Moscow University, Moscow, Russia

ANOD
Comparison of different models of solar panels
A.KOZLOV State Scientific-industrial corporation QVANT, Moscow, Russia - T.MULIARCHIK IKI, Moscow, Russia

SERVICE SYSTEMS

BNK, BNTR, BNTS
Commutation blocks
J.DIKAREVA IKI, Moscow, Russia

SSNI
Telemetry system
L.CHESALIN IKI, Moscow, Russia

STO
Telemetry system
L.BODNAR Politechn. Inst., Budapest, Hungary - J.VOJTA Inst. of Atm. Phys. CAS, Prague, Czech. Republik - S.ROISHIK Aviation Inst., Warsaw, Poland - G.TEREKHIN IKI, Moscow, Russia

BNS
Attitude processor
J.KLAS Inst. of Atm. Phys. CAS, Prague, Czech. Republic - N.EISMONT, Yu.LISSAKOV IKI, Moscow, Russia