About Space Applications Centre
About Ahmedabad City
Space Applications Centre (SAC) is one of the major centres of the Indian Space Research Organisation (ISRO), located in Ahmedabad, Gujarat.
SAC focuses on the design of space-borne instruments for ISRO missions and development and
operationalisation of applications of space technology for national development. The applications cover communication, broadcasting, navigation, disaster monitoring, meteorology, oceanography, environment monitoring and natural resources survey. The Centre also conducts ninemonth Post Graduate diploma courses for students from the Asia-Pacific region under the aegis
of the Centre for Space Science and Technology
Education in Asia and the Pacific (CSSTEAP) in
satellite communication and meteorology.
Ahmedabad is the largest city of Gujarat state. It is located on the banks of River Sabarmati, 30 km from the
state capital, Gandhinagar. Ahmedabad is well connected
with major Indian cities by road, rail and air. Space Applications Centre, ISRO is situated in the western part of the
Ahmedabad city and can be reached by road from Ahmedabad airport (20 km), railway station (12 km) and an interstate terminus (10 km). The weather in Ahmedabad remains dry and hot during the month of April with temperature ranging from 25°C to 40°C. Ahmedabad is a historic
city. The major tourist attractions include Mahatma Gandhi’s Sabarmati Ashram, Adalaj Step well, Kankaria lake,
Sabarmati River Front, Gujarat Science City etc. Details
can be seen at Gujarat Tourism website.
SAC also works with industry for sourcing and indigenization, involves Indian universities and academia in space research and propagates space
technology and applications amongst students
and public through in-house and mobile exhibitions. For details, please visit http://
www.sac.gov.in
NEMO-AM
Science Workshop
Nano satellite for Earth Monitoring and
Observation- Aerosol Monitoring
NEMO-AM an ISRO’s mission for aerosol studies
For Further Information, please contact:-
Dr. Abha Chhabra
Organizing Secretary
NEMO-AM Science Workshop
Space Applications Centre (ISRO)
Govt. of India, Dept. of Space
Ahmedabad –380015, India
E-mail: [email protected]
Phone: +91-79-2691 4004/4371
Fax: +91-79-2691 5823
Date and Venue:
Tuesday, 28 April, 2015
SPACE APPLICATIONS CENTRE
INDIAN SPACE RESEARCH ORGANISATION
AHMEDABAD-3800015, INDIA
Background
Aerosol is defined as a suspension of airborne
solid or liquid particles, with a typical size
between a few nanometres and 10 micrometres
that reside in the atmosphere for at least several
hours. Aerosols may be of either natural or
anthropogenic origin. Atmospheric aerosols have
direct and indirect effects on the earth’s
radiative balance. On a regional scale, the
effects of atmospheric aerosols on air quality and
visibility are of concern. Aerosol optical
properties are considered as one of the important
global geophysical variables of paramount
importance by the scientific community.
Multi–Angle Dual Polarisation Imaging
Sensor
The MADPI sensor onboard NEMO–AM is capable of
measuring multi–angle and polarised radiance at top
of the atmosphere at high spatial resolution (30 m @
nadir) and radiometric resolution of 12 bits presently
not available with any other mission. The instrument
is designed to observe reflected radiances in three
spectral bands located in visible – near infrared region
(480-500 nm, 660-680 nm and 860-880 nm). The
unique capability of dual polarisation & multi–angle
measurements through MADPI would open new areas
of research in the field of aerosol monitoring.
About NEMO-AM Mission
NEMO–AM is a low mass, compact and three axis
stabilised satellite being developed. It will carry
a Multi–Angle Dual Polarisation Imaging sensor
(MADPI) capable of measuring multi angle
polarised radiance at the top of the atmosphere.
It is planned to be launched in sun-synchronous
orbit of altitude of ~500 km. The satellite is
capable of tracking a target having image
acquisition capability at seven different viewing
angles (±53 deg) with sub degree pointing
accuracy.
About workshop
This one-day workshop is aimed at inviting ideas and
research proposals from researchers and academic
institutes across the country for potential applications
of NEMO-AM towards following objectives:
Parameter
IGFOV
Value
30 m @500 km altitude
 Development of retrieval techniques for various
aerosol properties from multi-angle and polarized
radiances.
 Exploring the potential of multi-angle viewing
geometry for study of land features.
 Validation of satellite derived aerosol properties
using in-situ measurements.
 To utilize the aerosols properties in various
scientific investigations (eg. air quality monitoring,
radiative forcing, atmospheric correction etc).
FOV
± 4.2deg X ± 1.5deg
Research proposals (~1000 words) on the above
Multi–angular view
7 view angles
Quantization
12 bits
Specification of Spacecraft
Value
Launch Volume
70 x 60 x 30 cm3
Mass
15 kg
Power Generation
50 W (peak)
Polarised channels
P–S polarised (0–90 deg)
Data Downlink
S-band, 2 Mbps
Spectral Bands
Uplink
S-band, 4 Kbps
480-500 nm, 660-680 nm
and 860-880 nm
On-board Data Storage
1GB
SNR @ saturation radiance
>90
mentioned objectives may be submitted by e-mail to
the contact person by 25 March, 2015.