Ukrainian input in ILWS program

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IONOSAT

• Ukrainian input in ILWS program
• O. FEDOROV
• Institute of Space Research, Kyiv, Ukraine
• V. KOREPANOV
• Lviv Centre of Institute of Space Research,
  Lviv, Ukraine
• G. LIZUNOV
• Institute of Space Research, Kyiv, Ukraine
• YU. YAMPOLSKY
• Institute of Radio Astronomy, Kharkiv, Ukraine
• Contact (vakor_at_isr.lviv.ua / Phone
  380-322-639163)

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William Liu,
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Ionosat. History
SPACE EXPERIMENTS IN UKRAINE
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IONOSAT experiment
GMES oriented ionospheric multi-satellites
mission National Space Agency of Ukraine proposal
for First European Space Program
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IONOSAT project main tasks

• Scientific and methodological substantiation of
  the efficiency of the LEO satellites use for SW
  monitoring, corresponding technological
  realization development and tests.
• Systematic study of the dynamic response of the
  ionosphere to the influences from above (solar
  and geomagnetic activity) and from below
  (meteorological, seismic and technologic
  processes), seismo-ionospheric coupling.
• Synchronous operation with the existing
  sub-satellite electromagnetic and meteorological
  polygons.
• Calibration of modern prognostic models of quiet
  and disturbed ionosphere.

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Ionosat Main features

• Orbit group is the cluster of three satellites
  with identical payload composition multipoint
  measurements
• Satellite group is at the orbit with 400 km
  perigee ionospheric project
• The orbit of satellite group is polar but is not
  solar-synchronous one covering of all the Globe
  at all range of local time
• Mutual distance between satellites changed in the
  range 50 3000 km multipoint diagnostics of
  medium- and big-scale disturbances

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Ionosat Orbital cluster
Basic orbit for two space vehicles (SV)
Io-1 liftetime 2 years, perigee 400
km, apogee 780 km, inclination
82.5? Io-2 The same, Moving off from I?-1
increase up to 2000 km
I?-1
I?-2
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Ionosat Orbital cluster
Third SV
has the same operational orbit as I?-1 and I?-2,
but with another argument of a latitude ??
2?
I?-1
I?-3
I?-2
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Ionosat Orbital cluster
Group lifetime 2 years For high solar activity
period perigee 400 km, apogee 780 km Orbit
inclination 82.5? Moving off of I?-1
I?-2 up to 2000 km I?-1 I?-3 up to 3000 km
I?-1
I?-3
I?-2
SV positioning accuracy less than 20 m SV
attitude accuracy less than 10? SV attitude
determination accuracy less than 0.1?
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Ionosat. Scientific tasks

• This is an ionospheric project

magnetosphere
DEMETER
IONOSAT
hmaxF2
Height,
Concentration (cm-3)
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EXPECTED PARAMETERS OF ELECTROMAGNETIC AND PLASMA
DISTURBANCES AT HEIGHTS 400 KM
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IDEAL COMPOSITION OF ELECTROMAGNETIC SATELLITE
Sensors
Parameters
Processes
Tasks
Neutral gas concentration

• CALIBRATION OF MODELS
• of upper atmosphere,
• ionosphere,
• EMF

Gas kinetic N, T, Ne, Te, Ti
Regular course of atmospheric ionospheric
parameters
Neutral gas temperature (pressure)
Distribution function and precipitating particles
flux
Plasma concentration and temperature
Magnetic hydrodynamics of upper atmosphere

• ATMOSPHERE-IONOSPHERE INHOMOGENEITIES
• ?GW,
• coherency,
• turbulence

Supra-thermal electrons
and ions
DC electric and magnetic fields, field aligned
currents E, B, J
EMF and geomagnetic activity
DC magnetic and electric fields (lt 10 Hz)
AC magnetic field. (1 Hz -100 k Hz )

• Space Weather
• Terragenic effects
• EQ precursors

ULF-VLF waveforms ?E, ?B and total spectrum of
plasma waves I(?)
Ionospheric emissions and propagation of
radiowaves
AC electric field (1 Hz-200 kHz)
Radio frequency analyzer (100 kHz-15 ?Hz)

• Plasma waves
• generation,
• structure,
• turbulence

GPS
TE?
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Special requirements

• Satellite orientation error 10?
• Precision of satellite orientation determination
  0.1?
• Precision of satellite position determination
  20 m
• Very high requirements to the measurement
  synchronization at all three satellites
• Wide range of sampling frequencies from 100 Hz
  (? ? min 160 m) in monitoring mode to 100 kHz
  in burst mode

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Minimized payload model structure
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IONOSAT on ??2- 8 platform Tentative sensors
layout

• STEP energetic particles sensor
• DN-DE neutral particles sensor
• EP electric probe
• FGM flux-gate magnetometer
• WP wave probe
• ?? telemetric antenna
• RFA radio frequency analyzer
• GPS for TEC monitoring

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Ionosat. Scientific payload
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DATA COLLECTION AND PROCESSING UNIT

• MAIN PARAMETERS
• SciWay interface with data transmission rate up
  to 50 ?b/s,
• 3 ports,
• Up to 32 requesters at each port,
• 4 GB memory,
• consumed power 4 W,
• weight lt 2kg

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EXPECTED INTERNATIONAL COLLABORATION

• Space support
• CSES (China)
• Mazowie (Poland)
• Vulkan or Kanopus (Russia)
• Other ?
• Ground support
• Ukraine (Kharkiv and Antarctica)
• Russia (Kamchatka polygon)
• Japan (EMSEV community)
• Swiss (COGEAR project)
• Norway (University of Tromso)

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Ionosat. Working shedule
PARTICIPATION PROPOSALS ARE WELCOME Georgy
Lizunov liz_at_ikd.kiev.ua Valery Korepanov
vakor_at_isr.lviv.ua
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THANK YOUFOR ATTENTION!