EDUSAT

SATELLITE COMMUNICATION

SYSTEMS

Seminar On EDUSAT

Topics to be DiscussedIntroduction

Implementation

Satellites Involved

Specifications

Network - EDUSAT

Hardware & Objectives

Practical Use

Conclusion

Introduction - EDUSAT Government of India launched the Educational

Satellite (EDUSAT) in September 2004, which is expected to revolutionize the Distance Education Programmes in the country.

GSAT-3, known as EDUSAT is meant for distant class room education from school level to higher education.

This is the FIRST dedicated "Educational Satellite" that provide the country with satellite based two way communication to class room for delivering educational materials.

This is a Geo-synchronous satellite developed on I-2K bus.

Implementation - EDUSAT

Karnataka, Kerala, Madhya Pradesh and Maharashtra are the four States where EDUSAT programme are implemented in the current year.

In each of these States a particular target and area has been identified for utilization of EDUSAT.

Different agencies have been identified with the responsibility for the development of Software, Teacher Training, Monitoring & Evaluation and overall implementation of the project.

Indian Space Research Organization (ISRO), Serva Siksha Abhiyan (SSA) are also involved in the implementation the Programme.

EQUIPMENT USED

Various Equipment'sA. AntennaB. ModemC. LAND. ScreenE. CameraF. Client PC

** Many other devices can be used.

Devices & Protocol Used

PROTOCOL USED :-

IP ADDRESS (Because of the use of LAN)

Architecture Based Network - EDUSAT

Satellites Involved - EDUSAT

METSAT(KALPANA-1)• The satellite features a Very High Resolution

scanning Radiometer (VHRR), for three-band images and a Data Relay Transponder (DRT) payload.

INSAT-3C• INSAT-3C, carrying Fixed Satellite Services (FSS)

transponders, Broadcast Satellite Services (BSS) transponders and Mobile Satellite Services (MSS).

• Basically used for Communication, broadcasting.

 GSAT-3 is co-located with :

Technical Specifications

Purpose Details

MissionEducation

Spacecraft Mass1950.5 Kg mass (at Lift - off)819.4 Kg (Dry mass)

Onboard Power

Total four solar panel of size 2.54 M x 1.525 M generating 2040 W (EOL), two 24 AH NiCd batteries for eclipse support.

Stabilization

3 axis body stabilized in orbit using sensors, momentum and reaction wheels, magnetic torquers and eight 10 N & 22N reaction control thrusters.

Propulsion440 N Liquid Apogee Motor with MON - 3 and MMH for orbit raising.

Purpose Details

Payload

• Five Lower Ku Band transponders for spot beam coverage with 55dBW Edge of Coverage-Effective Isotropic Radiated Power (EOC-EIRP).• One Lower Ku Band transponder for 50dBW EOC-EIRP.• Six Upper extended C-band transponders for national coverage with 37dBW EOC-EIRP.• One Ku-band Beacon to help ground users for accurate antenna pointing & uplink power control.

Launch Date September 20, 2004

Launch Site SHAR, Sriharikota, India

Launch Vehicle GSLV-F01

Orbit Used Geostationary (74oE longitude)

Mission Life Very Long (Minimum 7 years).

Installation Hardware & Objectives -

EDUSAT

• The UPLINK facility was established in DSERT, Bangalore (the capital city of the State).

• The DOWNLINK facility provided in schools are provided with solar power facility, which takes care of the frequent power problems

Installation Part

• To assess the impact of the broadcast of the Video Programme on students with respect the gain in the knowledge.

• To assess the impact of the broadcast on students attendance.

• To get the feedback from the teachers on the quality of the programme and is impact on teachers

OBJECTIVES :

TOTAL NUMBER OF PARTICIPANTS ATTENDED EDUSAT

COURSE

S.No. Name of Institute Total Students

1 Pune University 190

2 NIT, Warangal 54

3 Anna Uni. Chennai 66

4 Jamia Milia Islamia 34

5 Banasthali University 220

6 JNU, Delhi 116

7 Hari Singh Government University 111

8 Madurai Kamaraj University 128

9 Thanjavur Tamil University 17

10 Rajiv Gandhi University 50

S.No. Name of Institute Total Students

11 Kashmir Univ. 58

12 Mysore Univ. 59

13 Tripura Univ. 14

14 BIT. Ranchi 178

15 IIT Roorkee 11

16 Presidency College, Kolkata 13

17 H.N.B.G.U. , Srinagar 16

18 M.D.S. Univ., Ajmer 122

19 Baramulla Uni. 52

20 Jammu University 76

21 HARSAC., Hissar 37

22 Gurunanak Khalsa College 02

S.No. Name of Institute Total Students

23 Kurukshetra Univ. 26

24 GJUST 10

25 Gujarat University 147

26 CE PT University 263

27 MG Science Institute 06

28 Gauhati University, Assam 8O

29 Bharathiar Univ.Coimbatore 11

30 PSG College Coimbatore 139

31 Madras University 44

32 Nagpur University 47

33 Shivaji University 102

34 JSAC 11

S.No. Name of Institute Total Students

35 Jadhavpur University 44

36 IARI Delhi 60

37National Bureau of Plant Genetic Resources, New Delhi

03

38Indian Agriculture Statistics Research Institute, New Delhi

01

39 Silchar Univ. Assam 10

40 ADM College 43

41 Walchand College of Engineering 93

42 Punjab University 70

43 BHU. Varanasi 45

44 Forest Research Institute, Dehradun 56

45 Mizoram University 93

46 Tezpur University 11

S.No. Name of Institute Total Students

47 Manipur University 15

48 Amrita Vishwa Vidyapeethan University 33

49 Delhi University 16

50 New College Kohlapur 02

TOTAL 3126

Practical Use - EDUSAT

Important Note to be Discussed ….

As we have discussed, there are many applications of EDUSAT in the practical manner. This is the Best way in terms of Distance Education.

So, I have noticed some points as the as the advantages & drawbacks of this system, as following below :

Advantages are :

1.Its Flexible 2.Saves Time & Energy3.Study at your own pace4.Saves Money5.More convenient than classroom study6.24*7 access to study material & fellow students7.Study any topic you want to study.

Drawbacks are : 1.Time and frustration involved learning how to get on-line for novices.2.Occasional internet provider downtime .3. Student must be more active and self-directed in learning environment -Depends on individual motivation and initiative .4. Demands large effort and cost to develop appropriate materials .5. Demands large effort to create and maintain the technological infrastructure .6. Distance Education is not for everyone.-  It is not for undisciplined learners nor inflexible instructors.

My Conclusion

The launch of EDUSAT has helped in providing quality instruction through video programmes to students studying in the interior villages. The students have benefited from the video programmes delivered through the Satellite.

The benefit gained is in terms of gain in knowledge and understanding of the content, improvement in attendance and holding attention and interest in viewing programmes. The teacher involvement during the broadcast as facilitator and conduct of Pre and Post broadcast activity is note worthy.

THANK YOU

Delivered By :- Er. Manoj Kumar Rishi (EC/09/9367)