A Pakistani Communication SAT to be launched on April 2011

[Screaming Skull]

PakSat-1R is manufactured and launched by China. Pakistan has already launched its homemade Badr series satellites before. Also, Pakistan is already operating PakSat-1 since 2003. So how is PakSat-1R Pakistans first satellite?

Some more doubt clearing points from official site.

PAKSAT-1R

By the end of 2011, Pakistan plans to replace PAKSAT-1 with a new communication satellite PAKSAT-1R which will be manufactured exclusively for Pakistan. The satellite will support all conventional and modern Fixed Satellite Service (FSS) applications. The satellite will have a total of up to 30 transponders: 18 in Ku-band and 12 in C-band. To ensure high degree of reliability / availability of the system, two (02) fully redundant Satellite Ground Control Stations (SGCS) would be established in Karachi and Lahore, one to act as the Main and the other as Backup respectively.


So, it's really the first satellite of Pakistan as others were somehow not exclusively for Pakistan.

Pakistan’s BADR-1 & BADR-B were experimental satellites. BADR-1 satellite was launched in 1990, from a Chinese launcher, the Long March 2E and BADR-B was launched in 2001, from a Kazakistani launcher, the Zenit-2.

Both these satellites don’t have any commercial application. Pakistan launched these satellites to study and understand the dynamics of making and operating satellites and develop necessary ground infrastructure for tracking and control.

PAKSAT-1 is not a Pakistani made satellite. Nor does Pakistan own it. It is basically HGS-3 satellite developed by Hughes Global Services which was already in orbit. Pakistan merely leased it and got its coordinates changed to a 38 degE slot from them.

Pakistan inked a contract for the PAKSAT-1R satellite with China on Wednesday. It will be designed, manufactured, assembled, tested and launched by the China Great Wall Industry Corporation using a Chinese Long March 3B rocket from the Xichang Satellite Launch Center. The ground control facilities for the satellite will be handed over to Pakistan’s SUPARCO after it enters orbit.

So, the scientist is technically correct when he says that PAKSAT-1R will be Pakistan’s first satellite as it will be the first commercial satellite to be fully owned by Pakistan. Though, it would have been more appropriate if the scientist had used the phrase ‘Pakistan’s first commercial satellite’.

 

[raresouls]

1. When Pakistan will send a rocket like India for moon or other space mission.

2. Pakistan should develop far more in the field of technologies like Bio-technology, Chemical, Computer, Medical Science, Space program………….Arms power…….and everything.

 

[SMUTAHIR]

Pakistan has two satellites due for next year ... One of them is communication satellite and another is RSS satellite for surveillance Purpose which will replace BADR B basically it is a very extensive upgrade of BADR B

One thing i dont understand whenever there is a development news from pakistani sattelites all the Indians start posting ... I doubt this I doubt that will gona happen ... Believe me or not we are not Aliens from MARS ... The BRAIN chemistry for every one is almost the same so we can Develop our SLV as well ...

 

[SMUTAHIR]

These two are the projects from SUPARCO official website:
For Remote sensing sattelite

For Communication satellite PakSat 1R

 

[SMUTAHIR]

Pakistan’s BADR-1 & BADR-B were experimental satellites. BADR-1 satellite was launched in 1990, from a Chinese launcher, the Long March 2E and BADR-B was launched in 2001, from a Kazakistani launcher, the Zenit-2.

Both these satellites don’t have any commercial application. Pakistan launched these satellites to study and understand the dynamics of making and operating satellites and develop necessary ground infrastructure for tracking and control.

PAKSAT-1 is not a Pakistani made satellite. Nor does Pakistan own it. It is basically HGS-3 satellite developed by Hughes Global Services which was already in orbit. Pakistan merely leased it and got its coordinates changed to a 38 degE slot from them.

Pakistan inked a contract for the PAKSAT-1R satellite with China on Wednesday. It will be designed, manufactured, assembled, tested and launched by the China Great Wall Industry Corporation using a Chinese Long March 3B rocket from the Xichang Satellite Launch Center. The ground control facilities for the satellite will be handed over to Pakistan’s SUPARCO after it enters orbit.

So, the scientist is technically correct when he says that PAKSAT-1R will be Pakistan’s first satellite as it will be the first commercial satellite to be fully owned by Pakistan. Though, it would have been more appropriate if the scientist had used the phrase ‘Pakistan’s first commercial satellite’.

Can you please tell the source because it is still unknown that whether it will pakistani launcher or chinese ... There are two satellites PAKSAT 1R communication satellite and PRSS Satellite .. You can confirm it from suparco official website ... Both will be launched next year ... PRSS is a completely indigenous satellite but it is a multi purpose satellite not just for surveillance ...

 

[Hammy007]

it should better be pak slv

 

[SMUTAHIR]

it should better be pak slv

It will be a pakistani SLV there is no better time ... Americans need us right now more than any one ... This is time to cash our interests and launch our SLV ... 2011 is critical for us we need to and we must cash our interest in exchange for helping Americans ... If we miss the chance of American withdrawl from Afghanistan we wont be able to launch an SLV and later our SLV will be coloured as an ICBM so its now or never ...

 

[ajpirzada]

Remote Sensing Satellite

After successful launching and operation of BADR series of experimental satellites (BADR-1 and BADR-B) in the 1990s and early 2000s, SUPARCO now plans to launch high resolution remote sensing satellite system (RSSS) to meet the national and international user requirements in the field of satellite imagery.

A feasibility and system definition study was concluded in January 2007 which recommended the launch of a constellation of Optical and Synthetic Aperture Radar (SAR) Satellites to ensure that the domestic and international user requirements are competitively met. In this respect the RFP for RSSS consultancy services was launched in July 2007. Launch of RFP for the manufacturing of the satellite is planned in the third quarter of year 2008.

RSSS is planned to be a progressive and sustainable program. Initially, SUPARCO plans to launch an optical satellite with payload of 2.5 meter PAN in 700 km sun-synchronous orbit by the end of year 2011, which will be followed by a series of optical and SAR satellites in future. Necessary infrastructure for ground control and image reception and processing is also planned to be setup.

Prototype Remote Sensing Satellite (PRSS)

SUPARCO developed a Prototype Remote Sensing Satellite in 2007 as a part of skill development programme. It is an indigenous effort in the field of satellite engineering aimed at enhancing the know-how and capacity building of its scientists and engineers. Facilities developed/upgraded were utilized to test and evaluate the satellite responses in various environments such as HELMHOLTZ Coil, Clean Room, Anechoic Chamber and Light Controlled Environment, Satellite Platform Control Unit and Satellite Mission Control Room.

The Prototype satellite is the evaluation version of FM Satellite, in which Satellite Control, Navigation, Imaging, Communication and Power Management have been completely implemented.

The PRSS is able to acquire 2.5m GSD of satellite images. The PRSS Satellite is controlled through the OBC which can handle Telecommand and Telemetry through Ground Segment. All the subsystems of the Satellite are interconnected through CAN-2.0 Bus. The Power Capacity of PRSS is 600W with state of the art Power Management system which is used to perform Solar Power Distribution, Battery Power Distribution, Fast Take Over and Battery Charging Module and Subsystem Power Distribution through specific Power Control Unit which will manage the power according to specific requirements. In Satellite Navigation and Control system, PRSS is fully equipped with sophisticated Sensors and Actuators. The Satellite Navigation system comprises 3-Axis rate Gyros, Magnetometers, Accelerometers, Digital sun Sensor and Star tracking Sensors in order to provide accurate attitude and orbital determination. Magnetotorquer Rods, Thruster and Reaction wheels are used for controlling satellite attitude. The imaging Payload System is equipped with High resolution CCD sensor which is used in IKONOS, QUICKBIRD satellite for imaging with high speed Data Acquisition and Transmission to Ground Segment. The protocol implementation for communication of PRSS to Satellite Ground Segment is fully CCSDS complaint which can easily be interfaced with any standard Ground based equipments.

The prototype satellite has been integrated and tested under various conditions and through various testing tools in order to evaluate its performance and reliability.

Development Of PRSS Subsystems

On-Board Data Handling System

The On-Board Computer System of PRSS Prototype satellite on 386 Ex Processor based and hardware communication on CAN 2.0 bus. PIC Controllers have been used to establish sub-system communication with On Board Computer (OBC).OBC has been mounted and harnessed with other subsystems on satellite structure. Ground station software functionality with hardwired link has been successfully established and tested along with Telemetry acquisition and Telecommand generation.

The OBC is fully equipped with redundant logic circuits which can handle any kind of error occurring in space.

RF Transmitter / Receiver

Along with digital expertise, PRSS team is also mature in RF areas. The PRSS Prototype is equipped with S-Band transmitter, supporting Data rate of 150 Mbps with direct carrier QPSK modulation scheme. Integration and testing of different transmitter modules was performed successfully. S-Band Telemetry Transmitter and Telecommand Receiver has been mounted on satellite.


Reaction Wheel and Propellant Tank

The reaction wheel mounted on the PRSS is used to perform actuation for compensation of orbital displacement in SPACE environment. The reaction wheel has been designed according to theoretical calculation of satellite environment. The pressure vessel design is essential because the propellant used for the thrusters needs to be stored in some storage device, the pressure vessel serves this purpose.

The storage tank was developed by using ASME Section VIII standards (the standards for pressure vessel). The pressure vessel is designed to store 30kg of propellant at high pressure without failure, with mass not more that of 10Kg.

Satellite Electrical Power System


PRSS Prototype Model is equipped with 600 watts Power System which has been developed and integrated with other subsystems. The power requirements of satellite Prototype comprises Solar panels of 32V and 11A, Battery Pack of 24V and 10A, fully regulated bus of 28V, Battery Discharge Regulators, Battery Charger (Fast and Trickle), Power Management and Control Unit. Separate Power distribution modules have been designed for individual subsystems with the provision of voltage and current monitoring.


Imaging Payload System


Functional testing of Imaging Payload of PRSS has been successfully completed. The Features of the Imaging Payload System are: KLI14403 Tri-linear CCD Sensors are used for imaging which have 3-Band sensor arrays with Resolution of 14400 pixels in line. High rate pixel output has been interfaced with 10MHz, 3-Parallel High Speed ADC with 12 Bit Resolution at 10MHz rate, Imaging Payload Controller on DM642 Media Processor Based Design for Managing System Tasks, Ethernet Based Image Data Transmission with CCSDS format at 100Mbps, UART Based IPC interface with CAN Controller, Telescope with 20m focusing for testing and evaluation of overall performance of sensor.

The Ground Segment Software has been developed for the acquisition of image data from satellite payload controller over Ethernet interface. It acquires and saves image data with time stamping and displays sub-sampled/low resolution image in the GUI. An Imaging Platform is designed to acquire the simulated earth images. Since the PRSS MSS sensor is push broom sensor therefore the moving platform is developed in order to test sensor and overall IPS electronics performance. This system is placed on PRSS Prototype Structure and its harnessing functional testing/debugging has been completed. Its software and hardware performance with power consumption log is measured and scrutinized with calculated system response which has successfully fulfilled all such requirement.

Remote Sensing Satellite

Development of Satellite Facilities

 

[ajpirzada]

PAKSAT-1R

By the end of 2011, Pakistan plans to replace PAKSAT-1 with a new communication satellite PAKSAT-1R which will be manufactured exclusively for Pakistan. The satellite will support all conventional and modern Fixed Satellite Service (FSS) applications. The satellite will have a total of up to 30 transponders: 18 in Ku-band and 12 in C-band. To ensure high degree of reliability / availability of the system, two (02) fully redundant Satellite Ground Control Stations (SGCS) would be established in Karachi and Lahore, one to act as the Main and the other as Backup respectively.

Stowed PAKSAT-1R

Configuration of PAKSAT-1R in Orbit
(An artist's view)



Prototype PAKSAT-1R

The project was aimed to enhance the know-how of young scientists and engineers about communication satellite engineering. The philosophy was to design a satellite such as it would fly, however, while implementing the design, use commercial components to keep the cost low since the satellite will only be a functional lab model.

Prototype Paksat-1R is a communication satellite, which has three C-band Transponders as the communication payload. All the subsystems have been designed and developed indigenously. Integration and testing have also been performed. The project was completed in three years time.

The satellite bus comprised the following subsystems:

(i) Computer (based on Intel 80188EB microprocessor)


(ii) Power subsystem with the following main modules:

a. Power Distribution
b. Power Control
c. Battery Charging and Discharging
d. BAPTA


(iii) Telemetry subsystem

a. Microcontroller based
b. FPGA based


(iv) Telecommand subsystem

a. Microcontroller based
b. FPGA based


(v) Attitude and Orbit Determination and Control subsystem

(vi) S-band RF communication subsystem (for telemetry and telecommand)

(vii) Thermal Control subsystem

(viii) Satellite Structure

(ix) Mechanisms for:

a. Antenna Deployment
b. Solar Array Deployment

Pictures below show some of the subsystems and the complete satellite:

C-band Transponder (under test) Unit

Analog Telemetry Acquisition

On-Board Computer

Various modules of the Power Subsystem

Satellite Structure

Complete Satellite in AIT Hall


http://www.suparco.gov.pk/pages/paksat1r.asp?satlinksid=2

http://www.suparco.gov.pk/pages/paksat1r-proto.asp

 

[ajpirzada]

above all is what i found on suparco website and it clearly shows the involvement of pakistani scientists. or else there wouldnt have been any pakistani prototypes.

 

[SMUTAHIR]

WIKIPEDIA

Shaheen-III Satellite Launch Vehicle (SLV)

Pakistan began to concentrate to developed its first SLV in 1998. On March 2001, Dr. Abdul Qadeer Khan announced that Pakistani scientists were in the process of building the country's first Satellite Launch Vehicle (SLV) and that the project had been assigned to SUPARCO, which also built the Badr satellites[9].

Dr. Abdul Qadeer Khan also cited the fact that India had made rapid advances in launch technology and satellite manufacture as another motivation for developing an indigenous launch capabilities[10]. Dr. Abdul Majid, then-chairman of SUPARCO, confirmed dr. Khan's statement and said " Pakistan envision a low-cost SLV and Polar Satellite Launch Vehicle(PSLV) inroder to launch light-weight satellite into low-earth orbits. Dr. Abdul Qadeer Khan also added that" Pakistan has very robust IRBMs which can launch geostationary orbiting satellites. All Pakistan has to do is to erase Delhi or Kolkota from the target and point it towards the sky. Instead of Hydrogen bombs and Atomic bombs the missiles can easily carry a payload of a satellite"[9].

In March 2005, President General Musharraf authorized renewed research and development on an indigenous launch capability, which would be able to orbit a planned domestically built satellite, the PAKSAT-IR. During the IDEAS 2002 defense exhibition Pakdef spotted two similar models of Pakistani Satellite Launch Vehicles[10].

The first model points out a possible three stage of Satellite Launch Vehicle (SLV). Judging from other similar SLV's, it is estimated that it can place a payload weighing around 80-100 kilogram to an orbit 450-490 kilometers above Earth's surface. However the exact data remains unknown. The second model of the Polar Satellite Launch Vehicle (PSLV) seems similar to the first model however, with four extra boosters. Many nations with SLV technology developed boosters based on their missile technology. Therefore it is fair to assume that the boosters on the second model might also be based on one of Pakistan's ballistic missiles[11].

Iran and Pakistan are racing towards space[10]. On January 2004 Iranian authorities reported that their indigenous SLV will soon place a satellite in orbit. While Pakistan, on the other hand, plans to launch an SLV within the next five years[10]. The exact nature of Pakistan’s SLV program remains unknown. However, judging from Pakistan’s ballistic missile technology, it can be said that Pakistan Government and Suparco might just be waiting for the right moment to test Pakistan’s first satellite launch vehicle[10].

On August, 2006, after Prime Minister Shaukat Aziz's official visit to People's Republic of China, Prime Minister Aziz called a meeting of SUPARCO's scientists and engineers, where Prime Minister was briefed by SUPARCO's scientist on the status of the both SLV and PSLV programmes. However, the status of SLV and PSLV are remained unclear[10].

 

[SMUTAHIR]

WIKIPEDIA also has a lot of information on Pakistani SLV and Satellites ..
Space and Upper Atmosphere Research Commission - Wikipedia, the free encyclopedia

 

[ajpirzada]

WIKIPEDIA also has a lot of information on Pakistani SLV and Satellites ..
Space and Upper Atmosphere Research Commission - Wikipedia, the free encyclopedia

dont rely too much on wiki when it comes to our missile technology. pakistani slv is only speculation and there has been no official word on it in a long time. similar is with many other assumed missiles lik tipu, shaheen III, ghauri III etc.

 

[Areesh]

CJCSC visits SUPARCO

Lahore—Chairman Joint Chiefs of Staff Committee (CJCSC) General Tarig Majid visited Space Research and Development Center of SUPARCO at Lahore. During the visit he was briefed regarding Pakistan’s Space and Satellite Programme. He visited various facilities where the development work related to Pakistan’s satellite PakSat-1R was being undertaken by highly trained Pakistani scientists and engineers.

Earlier on his arrival, the CJCSC was received by Lieutenant General (Retired) Khalid Ahmed Kidwai, Director General General Strategic Plans Division and Major General (Retired) Raza Hussain, Chairman SUPARCO. During the visit, the CJCSC also inaugurated a newly constructed laboratory. While appreciating the hard work and dedication of young engineers and scientist, he expressed satisfaction that SUPARCO will be able to place Pakistan’s first indigenous satellite in the orbit within the stipulated time.

 

[SMUTAHIR]

dont rely too much on wiki when it comes to our missile technology. pakistani slv is only speculation and there has been no official word on it in a long time. similar is with many other assumed missiles lik tipu, shaheen III, ghauri III etc.

But the suspicion arises where there has been no announcement of Launch platforms for our Satellites ... Unlike Badr B where records show that SUPARCO announced the launch platform almost a year ago ..