In its thirteenth flight conducted from Satish Dhawan Space Centre (SDSC) SHAR,
Sriharikota, today (April 28, 2008),
ISRO's Polar Satellite Launch Vehicle, PSLV-C9, successfully
launched the 690 kg Indian remote sensing satellite CARTOSAT-2A, the 83 kg
Indian Mini Satellite (IMS-1) and eight nanosatellites for international
customers into a 637 km polar Sun Synchronous Orbit (SSO). PSLV-C9 in its
‘core alone’ configuration launched ten satellites with a total
weight of about 820 kg.
After the final count down, PSLV-C9 lifted off from the second
launch pad at SDSC SHAR, at 09:24 Hrs IST with the ignition of the core first
stage. The important flight events included the separation of the first stage,
ignition of the second stage, separation of the heatshield at about 125 km
altitude after the vehicle had cleared the dense atmosphere, second stage
separation, third stage ignition, third stage separation, fourth stage ignition
and fourth stage cut-off.
The 690 kg main payload, CARTOSAT-2A, was the first satellite to
be injected into orbit at 885 seconds after lift-off at an altitude of 637 km.
About 45 seconds later, Indian Mini Satellite (IMS-1) was separated after which
all the nano satellites were separated in sequence. The initial signals
indicate normal health of the satellites.
is a state-of-the art remote sensing satellite with a spatial
resolution of about one metre and swath of 9.6 km. The satellite carries a
panchromatic camera (PAN) capable of taking black-and-white pictures in the
visible region of electromagnetic spectrum. The highly agile CARTOSAT-2A is
steerable along as well as across the direction of its movement to facilitate
imaging of any area more frequently.
Soon after separation from PSLV fourth stage, the two solar
panels of CARTOSAT-2A were automatically deployed. The satellite's health
is continuously monitored from the Spacecraft Control Centre at Bangalore with
the help of ISTRAC network of stations at Bangalore, Lucknow, Mauritius,
Bearslake in Russia, Biak in Indonesia and Svalbard in Norway.
High-resolution data from CARTOSAT-2A will be invaluable in urban
and rural development applications calling for large scale mapping.
Indian Mini Satellite (IMS -1)
Mini Satellite (IMS-1), flown as an auxiliary payload on board PSLV-C9,
is developed by ISRO for remote sensing applications. Weighing 83 Kg at
lift-off, IMS-1 incorporates many new technologies and has miniaturised
subsystems. IMS-1 carries two remote sensing payloads - A Multi-spectral camera
(Mx Payload) and a Hyper-spectral camera (HySI Payload), operating in the
visible and near infrared regions of the electromagnetic spectrum. The spatial
resolution of Mx camera is 37 metre with a swath of 151 km while that of HySI
is about 506 metre with a swath of about 130 km. The data from this mission
will be made available to interested space agencies and student community from
developing countries to provide necessary impetus to capacity building in using
satellite data. The versatile IMS-1 has been specifically developed to carry
different payloads in future without significant changes in it and has a design
life time of two years.
Nano Satellites for International Customers
from abroad are carried as auxiliary payloads besides IMS-1 as well as
CARTOSAT-2A. The total weight of these Nanosatellite payloads is about 50 Kg.
Six of the eight Nanosatellites are clustered together with the collective name
NLS-4. The other two nanosatellites are NLS-5 AND RUBIN-8. NLS-4, developed by
University of Toronto, Canada consists of six nano-satellites developed by
various universities. Two of them - CUTE 1.7 and SEEDS - are built in Japan,
while the other four - CAN-X2, AAUSAT-II, COMPASS-1 and DELPHI-C3 are built in
Canada, Denmark, Germany and the Netherlands respectively. NLS-5 is also built
by University of Toronto and RUBIN-8 is built by Cosmos International, Germany.
The eight nanosatellite payloads of PSLV-C9 are built to develop nano
technologies for use in satellites as well as for the development of
technologies for satellite applications.
In its twelve consecutively successful flights so far, PSLV has
repeatedly proved itself as a reliable and versatile workhorse launch vehicle.
It has demonstrated multiple satellite launch capability having launched a
total of sixteen satellites for international customers besides thirteen Indian
payloads which are for remote sensing, amateur radio communications and Space
capsule Recovery Experiment (SRE-1). PSLV was used to launch ISRO's
exclusive meteorological satellite, KALPANA-1, into a Geosynchronous Transfer
Orbit (GTO) in September 2002 and thus proved its versatility. The same vehicle
will be used to launch Chandrayaan-1 spacecraft, India's first mission to
Moon during this year.