SCIENCE & TECHNOLOGY

HANDOUT
JULY - 2014

1
 INDIAN SPACE PROGRAM
 The Indian Space Programme began in 1962.
 In 1969 the Indian Space Research Organization (ISRO) was set up with
headquarters in Bangalore for the purpose of rapid development in space
technology and its application.
 In 1972, Space Commission was established.
 In 1975, India launched its first satellite, Aryabhata, and thus entered the space
age.
 Over the last two and half decades, the Indian Space Programme has made
impressive progress through a well integrated, self-reliant programme. Its main
objectives are –
(i) Mass Communication and education via Satellite;
(ii) Survey and management of natural resources through remote sensing
technology, environmental monitoring and meteorological forecasting and
(iii) Development of indigenous satellites and satellite launch vehicles.
 The Space Programme of the country can be divided broadly into three phases:
(i) Experimental phase,
(ii) Operational phase, and
(iii) Space Research

Indian Space Research Organisation (ISRO)

 The Indian Space Research Organisation (ISRO) is the primary space agency
of the Indian government.
 ISRO is amongst the six largest government space agencies in the world.
 Its primary objective is to advance space technology and use its applications for
national benefit.
 ISRO is under the administrative control of the Department of Space,
Government of India.
 India's first satellite, Aryabhata, was built by ISRO and launched by the Soviet
Union in 1975.
 Rohini, the first satellite to be placed in orbit by an Indian-made launch vehicle,
SLV-3, was launched in 1980.
 In 2008, ISRO successfully launched its first lunar probe, Chandrayaan-1.
 The objective of ISRO (Indian Space Research Organization) is to develop space
technology and its application to various tasks of national and international
interest. Accordingly, it has successfully put into operation two major satellite
systems, namely the Indian National satellites (INSAT) for communication
services and the Indian Remote Sensing (IRS) satellites for management of
natural resources. It has also developed various launch vehicles, like the Polar
Satellite Launch Vehicle (PSLV), the Geosynchronous Satellite Launch Vehicle
(GSLV), etc. for launching satellites.

2
Satellite Launch Vehicle (SLV)
Date of
Version Launch Location Payload
Launch

10 August SDHC, Rohini-1A Experimental Technology mission,

3 D1
1979 Sriharikota 30 kg

18 July SDHC, Rohini-1B RS-1 Experimental Technology

3 D2
1980 Sriharikota mission, 35 kg

31 May SDHC, Rohini D-1 RS-1 Experimental Technology

3 D3
1981 Sriharikota mission, 38 kg

17 April SDHC, Rohini D-2 RS-1 Experimental Technology

3 D4
1983 Sriharikota mission, 41.5 kg

Augmented Satellite Launch Vehicle (ASLV)

Launch
S/N Payload Outcome Remarks
date

24 March SROSS A, First stage did not ignite after strap-on

D1 Failure
1987 150 kg burnout.

13 July SROSS-B,
D2 Failure Insufficient control gain
1988 150 kg

20 May SROSS-C, Partial Lower than expected orbit and incorrect spin-
D3
1992 106 kg failure stabilisation, payload decayed quickly.

4 May SROSS-C2,
D4 Success
1994 113 kg

Polar Satellite Launch Vehicle (PSLV)

PSLV has 3 variants
1) PSLV ( Using 6 strap on boosters)
2) PSLV-CA ( Using only the core vehicle without using any strap on boosters)
3) PSLV – XL ( Using stretched strap on boosters)

Flight Variant Launch date/time (UTC)

D1 PSLV 20 September 1993

D2 PSLV 15 October 1994

3
D3 PSLV 21 March 1996

C1 PSLV 29 September 1997

C2 PSLV 26 May 1999

C3 PSLV 22 October 2001

C4 PSLV 12 September 2002

C5 PSLV 17 October 2003

C6 PSLV 5 May 2005

C7 PSLV 10 January 2007

C8 PSLV-CA 23 April 2007

C10 PSLV-CA 21 January 2008

C9 PSLV-CA 28 April 2008

C11 PSLV-XL 22 October 2008

C12 PSLV-CA 20 April 2009

C14 PSLV-CA 23 September 2009

C15 PSLV-CA 12 July 2010

C16 PSLV 20 April 2011

C17 PSLV-XL 15 July 2011

C18 PSLV-CA 12 October 2011

C19 PSLV-XL 26 April 2012

C21 PSLV-CA 9 September 2012

C20 PSLV-CA 25 February 2013

C22 PSLV-HP June 2013

C25 PSLV-XL 25 October 2013

4
Geosynchronous Satellite Launch Vehicle (GSLV) Variants
GSLV Mk I (a): This variant had a 125 t (S-125) first stage and was capable of launching
1500 kg into geostationary transfer orbit. This is now retired.
GSLV Mk I (b): This variant had 139 t (S-139) first stage and improved fuel in the strap-
on boosters & second stage. This variant can launch 1900 kg into geostationary transfer
orbit.
GSLV Mk I (c): This variant has a 15 tonne third stage. GSLV-F06 (flight 6) is the only
attempted launch of the Mark I(c) version to date.
GSLV Mk II: This variant uses an Indian cryogenic engine and is capable of launching
2500 kg into geostationary transfer orbit. Previous GSLV vehicles (GSLV Mk I) have
used Russian cryogenic engines.
GSLV Mk III: This rocket is the technological successor to the GSLV, however is not
derived from its predecessor.
Launch history: All GSLV launches have been conducted from the Satish Dhawan
Space Centre in Sriharikota.
Flight Launch date Variant Payload

D1 18 April 2001 Mk I(a) GSAT-1

D2 8 May 2003 Mk I(a) GSAT-2

F01 20 September 2004 Mk I(b) EDUSAT

F02 10 July 2006 Mk I(b) INSAT-4C

F04 2 September 2007 Mk I(b) INSAT-4CR

D3 15 April 2010 Mk II GSAT-4

D4 25 December 2010 Mk I(c) GSAT-5P

D5 May 2013 Mk II GSAT-14

Geosynchronous Satellite Launch Vehicle Mark-III (GSLV III)


The Geosynchronous Satellite Launch Vehicle Mark-III is a launch vehicle
currently under development by the Indian Space Research Organisation.
1.
It is intended to launch heavy satellites into geostationary orbit, and will allow
India to become less dependent on foreign rockets for heavy lifting. The rocket,
though the technological successor to the GSLV, however is not derived from its
predecessor. The first experimental Mission of GSLV-Mark III is scheduled for
August 2014 launch.

5
The INSAT series of satellites:
KALPANA-1
KALPANA-1 is an exclusive meteorological satellite launched by PSLV in September
2002. It carries Very High Resolution Radiometer and DRT payloads to provide
meteorological services. It is located at 74 degree East longitude.
Edusat
Configured for audio-visual medium employing digital interactive classroom lessons and
multimedia content, EDUSAT was launched by GSLV in September 2004. Its
transponders and their ground coverage are specially configured to cater to the
educational requirements. The satellite carries a Ku band transponder covering the
Indian mainland region with 50 dBW EIRP, five Ku band spot beam transponders for
South, West, Central, North and North East regional coverage with 55 dBW EIRP and
six Extended C-band transponders with India coverage with 37 dBW EIRP. EDUSAT is
positioned at 74 degree East longitude and is collocated with KALPANA-1 and INSAT-3
IRS launch log
The initial versions are composed of the 1 (A, B, C, D). The later versions are named
based on their area of application including OceanSat, CartoSat, ResourceSat. Some of
the satellites have alternate designations based on the launch number and vehicle (P
series for PSLV).
Satellite Date of Launch Launch Vehicle Status

IRS 1A 17 March 1988 Vostok, USSR Mission Completed

IRS 1B 29 August 1991 Vostok, USSR Mission Completed

20 September
IRS P1 (also IE) PSLV-D1 Failure of PSLV
1993

IRS-P2 15 October 1994 PSLV-D2 MissionCompleted

28 December
IRS-1C Molniya, Russia MissionCompleted
1995

IRS-P3 21 March 1996 PSLV-D3 MissionCompleted

29 September
IRS 1D PSLV-C1 MissionCompleted
1997

IRS-P4 (Oceansat-1) 27 May 1999 PSLV-C2 MissionCompleted

Technology
Experiment Satellite 22 October 2001 PSLV-C3 MissionCompleted
(TES)

6
IRS P6 (Resourcesat-
17 October 2003 PSLV-C5 In Service
1)

IRS P5 (Cartosat 1) 5 May 2005 PSLV-C6 In Service

Cartosat 2 (IRS P7) 10 January 2007 PSLV-C7 In Service

Cartosat 2A 28 April 2008 PSLV-C9 In Service

IMS 1 28 April 2008 PSLV-C9 In Service

23 September
Oceansat-2 PSLV-C14 In Service
2009

Cartosat-2B 12 July 2010 PSLV-C15 In Service

Resourcesat-2 20 April 2011 PSLV-C16 In Service

Megha-Tropiques 12 October 2011 PSLV-C18 In Service

RISAT-1 26 April 2012 PSLV-C19 In Service

SARAL 25 Feb 2013 PSLV-C20 In Service

Resourcesat-2:
 is a follow-on mission to Resourcesat-1 and the eighteenth Remote Sensing
satellite built by ISRO.
 RESOURCESAT-2 is intended to continue the remote sensing data services to
global users provided by RESOURCESAT-1, and to provide data with enhanced
multispectral and spatial coverage as well.
 The satellite contains 3 multispectral cameras on board. Advanced Wide-Field
Sensor (AWiFS) with 56 meter spatial resolution. The Linear Imaging Self-
Scanning Sensor (LISS-III) with 23.5 meter spatial resolution and LISS-IV
Camera with 5.8 meter spatial resolution.
Youth sat:
 This satellite was built jointly by India and Russia and has 3 payloads one from
Russia and two from India.
 It can be used to study the solar rays, X rays, (Gamma) γ rays etc and also the
influence of the sun on the upper layers of the earth.
X-Sat:
 It is the first indigenous remote sensing satellite from Singapore, built by
Nanyang technological university.
 It contains 3 payloads for remote sensing operations.
 With the launch of X-Sat India again proved its commercial services in launching
foreign satellites.
7
Cartosat-2B:
 Weight- 694Kg.
 Launched into polar sun synchronous orbit.
 It is the latest in Indian remote sensing.
 It is an earth observing satellite containing a panchromatic camera capable of
taking pictures in the visible region of electromagnetic spectrum.
 Useful for village level resources.
 Main applications are mapping and management.
 Preparation of micro water shed development plans
 Monitoring the development works of villages.
 Urban infrastructure planning and development.
 Transportation system planning.
 It works for a period of 5 years.
 The resolution of Cartosat-2B is very high when compared to the earlier Cartosat-
1 and Cartosat-2A.
Alsat:
 116 Kg Alsat is also a remote sensing satellite for the development of rural and
urban infrastructure in Algeria.
Studsat:
 It is a satellite developed for the 6 engineering college students in AP&
Karnataka.
 Weighs less than 1Kg and demonstrates the achievements of college level
human resources available in the country.
 This satellite is mainly intended to test new technologies.
2 nano satellites NLS 6.1 & 6.2 of Switzerland, Canada and a pico satellite called ocean
sat-2 were also launched in this mission.
Chandrayaan-1
 It is India's first unmanned lunar probe.
 It was launched by the Indian Space Research Organisation in October 2008,
and operated until August 2009.
 The mission included a lunar orbiter and an impactor.
 India launched the spacecraft with a modified version of the PSLV, PSLV C11 on
22 October 2008 from Satish Dhawan Space Centre, Sriharikota.
 The mission was a major boost to India's space program, as India researched
and developed its own technology in order to explore the Moon. The vehicle was
successfully inserted into lunar orbit on 8 November 2008.
 On 14 November 2008, the Moon Impact Probe separated from the Chandrayaan
orbiter at 20:06 and struck the south pole in a controlled manner, making India
the fourth country to place its flag on the Moon.
 Over a two-year period, it was intended to survey the lunar surface to produce a
complete map of its chemical characteristics and three-dimensional topography.
The polar regions are of special interest as they might contain ice.

8
  Chandrayaan operated for 312 days as opposed to the intended two years but
the mission achieved 95 percent of its planned objectives. Among its many
achievements was the discovery of the widespread presence of water molecules
in lunar soil.
Objectives
The mission had the following stated scientific objectives:
 to design, develop, launch and orbit a spacecraft around the Moon using an
Indian-made launch-vehicle
 to conduct scientific experiments using instruments on the spacecraft which
would yield data:
o for the preparation of a three-dimensional atlas (with high spatial and
altitude resolution of 5–10 m) of both the near and far sides of the Moon
o for chemical and mineralogical mapping of the entire lunar surface at high
spatial resolution, mapping particularly the chemical elements
magnesium, aluminium, silicon, calcium, iron, titanium, radon, uranium,
and thorium
o to increase scientific knowledge
o to test the impact of a sub-satellite (Moon Impact Probe — MIP) on the
surface on the Moon as a fore-runner to future soft-landing missions
Payload
The scientific payload had a total mass of 90 kg and contained five Indian instruments
and six foreign instruments.
 TMC or the Terrain Mapping Camera The aim of this instrument was to
completely map the topography of the Moon.
 HySI or Hyper Spectral Imager performed mineralogical mapping
 LLRI or Lunar Laser Ranging Instrument determines the height of the surface
topography by sending pulses of infrared laser light towards the lunar surface
and detecting the reflected portion of that light.
 HEX is a High Energy aj/gamma x-ray spectrometer the HEX measured U, Th,
210
Pb, 222Rn degassing, and other radioactive elements.
 MIP or the Moon Impact Probe developed by the ISRO, is an impact probe
which consisted of a C-band Radar altimeter for measurement of altitude of the
probe, a video imaging system for acquiring images of the lunar surface and a
mass spectrometer for measuring the constituents of the lunar atmosphere.
 C1XS or X-ray fluorescence spectrometer mapped the abundance of Mg, Al,
Si, Ca, Ti, and Fe.
 Atom Reflecting Analyser from the ESA mapped mineral composition using low
energy neutral atoms emitted from the surface.
3
 M , the Moon Mineralogy Mapper is an imaging spectrometer designed to map
the surface mineral composition.
 SIR-2, A near infrared spectrometer from ESA,
 RADOM-7, Radiation Dose Monitor Experiment from the Bulgarian Academy
of Sciences maps the radiation environment around the Moon. It was
successfully tested on 16 November 2008.
9
1. MARS ORBITOR MISSION
The MOM mission is a “technology demonstrator” project aiming to develop the
technologies required for design, planning, management and operations of an
interplanetary mission.
If successful, Indian Space Research Organisation (ISRO) would be the fourth space
agency to reach Mars after Roscosmos, NASA and ESA. The project was approved by
the government of India on 3 August 2012, and may cost up to INR4.54 billion (US$69
million).
1. The primary objective of the mission is to display India’s rocket launch systems,
spacecraft-building and operations capabilities.
2. The main theme of MOM appears to be to seek whether there is methane,
considered a “precursor chemical” for life, on the Red Planet.
3. The satellite will carry compact science experiment instruments, totalling a mass
of 15kg to study Martian surface, atmosphere and mineralogy.
4. The 15 kg scientific payload consists of five instruments:
Atmospheric studies
Lyman-Alpha Photometer (LAP) – is a photometer that measures the relative
abundance of deuterium and hydrogen from Lyman-alpha emissions in the upper
atmosphere.
Methane Sensor For Mars (MSM) – will look to detect the presence of methane in
the atmosphere of Mars.
Particle environment studies
Mars Exospheric Neutral Composition Analyzer (MENCA) - is a quadrupole mass
analyzer capable of analyzing the neutral composition of particles in the
exosphere.
Surface imaging studies
Thermal Infrared Imaging Spectrometer (TIS) - will measure the temperature and
emissivity of the Martian surface, this can allow mapping surface composition
and mineralogy of Mars.
Mars Colour Camera (MCC) - will provide images in the visual spectrum,
providing context information for the other science instruments.

2. CHANDRAYAAN-2
Chandrayaan-2: is India's second lunar exploration mission. Developed by the Indian
Space Research Organisation (ISRO), the mission is proposed to be launched to the
Moon by a Geosynchronous Satellite Launch Vehicle (GSLV),includes a lunar orbiter, a
lander and a lunar rover, all developed by India. According to ISRO, this mission will use
and test various new technologies and conduct new experiments. The wheeled rover will
move on the lunar surface and will pick up soil or rock samples for on-site chemical
analysis. The data will be relayed to Earth through the Chandrayaan-2 orbiter. Initially
the mission was a joint venture of ISRO and its Russian counterpart Roscosmos, but the
latter withdrew from the mission failing to provide a lander within the proposed time.
There is no time frame set for the mission.
10
History
Roscosmos was to provide lander but the loss of the Fobos-Grunt mission (a mission on
to the moon of mars) which was a planned as a test for the Russian landing system
made Russia to with draw from the mission
Design
Orbiter: ISRO will design the orbiter, which will orbit the Moon at an altitude of 200 km.
The mission would carry five instruments on the orbiter. Three of them are new, while
two others are improved versions of those flown on Chandrayaan-1 orbiter. The
approximate launch mass will be 1,400 kg.
Lander: Unlike Chandrayaan-1's lunar probe, which impacted the Moon's surface, the
lander will make a soft landing. The approximate weight of the lander and rover is
1,250 kg. Initially, the design of the indigenous lander and the preliminary configuration
study has been completed by the Space Applications Centre (SAC) in Ahmedabad.
Rover: The rover will weigh 30–100 kg and will operate on solar power. The rover will
move on wheels on the lunar surface, pick up samples of soil or rocks, perform chemical
analysis and send the data to the orbiter above, which will relay it to the Earth station.
The rover has been designed in Russia and is being fabricated by Indian scientists. IIT
Kanpur is developing three subsystems to provide mobility:
Payload
ISRO has announced that an expert committee has decided on five payloads for the
orbiter, and two for the rover. While it was initially reported that NASA and ESA would
participate in the mission by providing some scientific instruments for the orbiter, ISRO
has later clarified that due to weight restrictions it will not be carrying foreign payloads on
this mission.
Orbiter payload
 Large Area Soft X-ray Spectrometer (CLASS) from ISRO Satellite Centre (ISAC),
 Synthetic Aperture Radar (SAR) from Space Applications Centre (SAC),
Ahmedabad for probing the first few tens of metres of the lunar surface for the
presence of different constituents, including water ice.
 Imaging IR Spectrometer (IIRS) from SAC, Ahmedabad for mapping of lunar
surface over a wide wavelength range for the study of minerals, water molecules
and hydroxyl present.
 Neutral Mass Spectrometer from Space Physics Laboratory (SPL),
Thiruvananthapuram to carry out a detailed study of the lunar exosphere.
 Terrain Mapping Camera-2 (TMC-2) from SAC, Ahmedabad for preparing a
three-dimensional map essential for studying the lunar mineralogy and geology.
Rover payload
 Laser induced Breakdown Spectroscope (LIBS) from Laboratory for Electro Optic
Systems ( LEOS), Bangalore.
 Alpha Particle Induced X-ray Spectroscope (APIXS) from PRL, Ahmedabad.
Later there were reports of plans to send a seismometer to moon to study about moon-
quakes.

11
3. NASA's IRIS Mission
 It is a space probe to observe the Sun by NASA.
 The Interface Region Imaging Spectrograph, or IRIS, is launched from
Vandenberg Air Force Base.
 IRIS will advance our understanding of the interface region, a region in the lower
atmosphere of the sun where most of the sun's ultraviolet emissions are
generated. Such emissions impact the near-Earth space environment and Earth's
climate.
 IRIS will orbit Earth and use its ultraviolet telescope to obtain high-resolution
solar images and spectra. IRIS observations along with advanced computer
models will deepen our understanding of how heat and energy move through the
lower atmosphere of the sun and other sun-like stars.
The search for dark matter
 The mysterious dark matter, which is believed to account for a quarter of the
universe’s mass-energy balance, can be observed indirectly through its
gravitational interaction with visible matter but is yet to be directly detected.
 The search for dark matter is one of the objectives of the space-borne AMS
(Alpha magnetic spectrometer).
 The dark matter is also being actively searched for in ground-based experiments
such as the Large Hadron Collider (LHC) and other deep underground
experiments.
 The AMS instrument is the most powerful and sensitive particle spectrometer
ever deployed in space. It is designed to study the cosmic ray particles, which are
charged high-energy particles that permeate space, before they have a chance to
interact with the Earth’s atmosphere.
 The positron ratio is a key parameter in the search for dark matter. Some
theories, such as super symmetry, predict that dark mater particles will collide
and annihilate in space, producing an excess of positrons that detectors such as
the AMS would be able to detect.

12