Transcript iitmsat

sat
A student satellite initiative
Indian Institute of Technology Madras
Part 1: The Mission
The goals and objectives
Part 2: History
What we have done so far?
Part 3: The Satellite
The conceptual design of the satellite
Part 4: Future
What we plan to do next.
Mission
Mission
Mission Objectives
Design, fabricate, test and launch a smallsatellite
Build a ground station for collection
of data
Primary Objectives
Measure the energy spectrum of
protons and electrons in the upper
atmosphere
Investigate the possibility of creation of a
small-satellite based earthquake
prediction system
Mission
Mission Objectives
• learn basics of design,
Education
manufacture, system
engineering and space
technology through
building a small satellite
Secondary Objectives
Motivation
• Inspire young scientists and
engineers to take up
challenging tasks and work
towards it collectively
University
participation in
space research
• Increase participation of
IIT Madras in space research
and technology development
Payload Selection
Pure technology
demonstration
Mission
Space-craft component
innovation
Mission Options
Magnetic/ Electric Field
Measurement
Earth Related
Radiation (EM &
Particle) Measurement
Scientific Experiments
Astronomy Related
Particle
Detector
(HEPD)
Micro-gravity experiments
Determining earth quake
epicenters
Remote sensing
Mapping ocean currents
Service based
Communication
GPS
Doppler Navigation
iitmsat 19th March 2010
6
Mission
Before an Earthquake
A series of events occur :
References:
Sgrigna, V. (2005). Correlations between earthquakes and anomalous particle
bursts from SAMPEX/PET satellite observations. Journal of Atmospheric and
Solar-Terrestrial Physics 67, 1448-1462.
Alexandrin, S. (2009). Observation of solar-magnetospheric and geophysical
effects on the electron and proton fluxes detected by the satellite-borne
ARINA experiment. Izvestiya Akademii Nauk. Serriya Fizicheskaya Vol 73,
379-381
Inner Van- Allen Belt
Boundary
Mission
Ionosphere
interaction
region
Not to Scale
Capture
region
Seismic
Activity
Not to Scale
Lowering of mirror points
300km
900 km
Not to Scale
History
Winter Excursion (Dec ‘09)
History
Goal
• Gain some understanding of current spaceexperiments and satellite payloads
Project 1:
Modification in design, and fabrication of the
casing of the Cadmium Zinc Telluride Imager,
which will be flown on ASTROSAT.
Modification in the casing of CZT
in TIFR
Project 2:
Tracing the circuit of KETEK VITUS Preamplifier used with the Silicon Drift
Detector.
Project 3:
Preliminary
software
development
of
ground
for analysis of data from the CZT
Imager.
Project 4:
The pre-amplifier for SDD (Detector) in
PRL
Modification of
compress data
transmission.
on board software
from
the
CZT
to
before
12
Pre Engineering Model
History
IC&SR innovative students project
Goals :
Use as playground for experimentation
Gain practical experience
Recognize team strengths
13
Summer in ISAC (Apr ‘10)
High Energy Particle Detector
Configuration
Photodiode
Si (300 μm)
Plastic Scintillator
BC-404
CsI (Tl)
31 mm
19 mm
Photodiode
Detector Specifications
1 MeV
Protons: 7 MeV to 100 MeV
Electrons: 1 MeV to 15 MeV
Geometric Area
30 mm x 30 mm
Active Detector Volume
30 x 30 x 51.3 mm
Mass
2.2 Kg
Energy Bin Resolution
Energy Range
Shielding
Power (Max. Consumption)
Data (Peak Data Rate)
2 cm thick Aluminum shield
2W
2 Mbytes/ orbit (1 orbit = 100 min)
History
Satellite
Overall configuration of
the satellite
Satellite
Over-all Satellite Specifications
Dimensions
20 x 20 x 24 cm3
Mass
10 kg
Average power
consumption
6W
Attitude stabilization type 3-axis stabilized
Payload
High Energy Charged
Particle Detector
Mission Specifications
Orbit
Low Earth Orbit
Altitude
600-800 km
Inclination
10-100 degrees
Mission Life-time
> 1 year
Proposed configuration of the satellite.
(Picture of the Pro-E model made by
the student team)
Future
Timeline
Future
Looking ahead…
(Post Launch)
Future
20
Trapped Particle Motion
Mission
Three kinds of motion:
•Gyration
•Bouncing
•Longitudinal Drift
18th June 2010, ISAC Space Astronomy Group
Locating the Latitude of
the Epicenter
Mission
18th June 2010, ISAC Space Astronomy Group
Mission
Locating the Longitude of the Epicenter
Longer drift life for:
Electrons > 5 MeV
Protons > 50 MeV
18th June 2010, ISAC Space Astronomy Group
The project’s Vision
A student initiative
to
Design
Build
Operationalize
a small satellite (~10 kg)
Mission
Mission:
Scientific experiment
involving High Energy
Particle Detection for
studying ionospheric
earthquake precursors.
Positive Impact
Introduction
Inspiring
young
minds
Develop Human
Resource for
ISRO
University
space programs
Strengthen
Institutional
partnership
New science
and technology
for ISRO
Positive Impact
Scientific Community
Improvements
in various
fields of
research
Introduction
• Geophysical
• Ionospheric
• Magnetospheric
iitmsat 19th March 2010
26
The Mission
Mission