Transcript PPT - ILWS

China National Report
11-0-2007, Uppsala, Sweden
China National Space Administration
Content
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Double Star Program
KuaFu
SMESE
Mars’ Space Environment Mission YH-1
Other Missions Under Studies
– SPORT
– MIT
• Remarks
Double Star Program
• TC-1 and TC-2 is expecting to end its
lifetime by Oct. 2007
• Perigee of TC-1 is changing (down) rapidly
• Altitude of TC-2 is about 42 deg. from the
north pole, which effected the antenna
pattern and communication link
Double Star Program
• TC-1 orbit forecast: perigee
Double Star Program
• TC-1 orbit forecast: apogee
Double Star Program
On the good side:
• Up to May 2007, TC-1 had accumulated
data (L1) 181.01G Bytes
• The DSP data center website has a
number of hit 1,556,609, ~1400/day
• Publications (2004~11.2006）49, where
SCI 30, citation 77
Status of KuaFu Mission
• CNSA has supported two background
project studies
– Scientific objectives and payloads
selection
– Spacecraft feasibility
Status of KuaFu Mission
• The 2nd International Symposium on
Kuafu project was held in Sanya,
Haiyan, 14-20 Jan. 2007
• Review for the Scientific Objectives
Payload Selection have just been
finished 1 June, 2007, with a strong
support from the scientific community
• Review for the s/c feasibility is going to
be held soon
Status of KuaFu Mission
• Current problem is still on the possibility of
early start of the engineering phase and to
launch is around 2012
• CNSA is considering it a background study
and may discuss start of the engineering
phase early only if there is extra fund
available
• International cooperation is very welcome
and will certainly be very helpful to speed up
the project including providing spacecraft
SMESE
• Small Mission of Exploration on Solar
Eruptions
– An approved Sino-French mission in Phase A
– Will have good contribution on Solar eruption
studies including flares and CME, and will
have good contribution to ILWS
– Currently on the French side has some
difficulties to go ahead due to programmatic
reasons
– Still wish to launch it by 2012-2013
Mars’ Space Environment Mission YH-1
• Participation on Phobos-Grunt Mission
- Ying Hou-1 (YH-1)
– Scientific Objectives：Exploring the Mars’ Space
Environment (MSE)
- 4 scientific instruments
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Flux gate magnetometer
Plasma detectors
S-S occultation measurement receiver
Medium resolution optical camera
- 800X80,000km orbit, launch with Phobos-Grunt
Mars’ Space Environment Mission YH-1
Other Missions Under Studies
SPORT - Solar Polar Orbit Radio Telescope
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To imaging the high density plasma clouds at radio wave
band from solar polar orbit
Provide measurement evidence to the numerical model of
ICME propagation
Provide interplanetary space weather forecast
In-situ Measure the global distribution of solar wind
Discover the heating, accelerating and super radial dilation
of solar wind
Obtain the distribution and total output of solar angular
momentum
Other Missions Under Studies
SPORT spacecraft
Other Missions Under Studies
Spatial resolution required
In order to follow the CME explicitly, a 20x20
cells within 1 AU from the Sun should be enough
Which correspond a spatial resolution ability of < 4.5 deg.
At 15MHz, this require a physical antenna aperture of 270m
Other Missions Under Studies
Using time shared scan design
- 0 redundant design in polar radius + rotation
scan
Other Missions Under Studies
Using time shared scan design
- 4 element clock rotation scan
Other Missions Under Studies
• “Clock Scan” concept
Other Missions Under Studies
• Extended Clock Scan
Other Missions Under Studies
• MIT – Magentosphere, Ionoshpere
and Thermosphere coupling project
Other Missions Under Studies
• Scientific Objectives of MIT
• Global neutral wind and temperature variations during
geomagnetic storms; seasonal and diurnal effect on
these variations; recovery of the thermosphere and
ionosphere after storms
• Global electric field distributions during geomagnetic
storms, their temporal and spatial variations, and their
changes with ionospheric conductivity
• The generation, propagation and dissipation of large
scale gravity waves in the thermosphere/ionosphere
during and after the storms
Remarks
• China is a developing country that the
national space policy is certainly focus on
application satellite, not scientific satellite!
• However, a few missions can be support if it
has significant scientific value and
international participations
• Scientists from China is very much like to
give our contributions to the ILWS
Thank You
Possible New Task Group for Heliosphere
• Solar task group is very big if it still takes care of
the heliospheric space
• The Inner-Interplanetary region is the key region
of space weather forecast
• ICME propagations has not being our attention
• Deep space exploration missions need to know
the heliospheric environment
• Interaction of solar wind with other planets
• Study of the termination shock, the bounder of
our solar system, should be included in ILWS
also