Prospects for Status and Prospects for Status and Development of GLONASS Development of GLONASS

System Space ComplexSystem Space Complex

9 – 14 of November 2013 , Dubai, UAE

JSC “M.F. Reshetnev “Information Satellite Systems”

The Basis for Future Space Complex Development

2

“GLONASS Sustainment, Development and Use for 2012 – 2020”Federal Program

The key objectives of the Program with regard to GL ONASS Space Complex:

Phase 1.1. To complete flight test of Glonass-K satellite (o f 1st series);2. To develop and test in flight Glonass-K satellit e (of 2nd series).3. To complete the first phase of modernization of ground control segment

and time scale generation & synchronization facilit ies.

The basis for future space segment development

3

“GLONASS Sustainment, Development and Use for 2012 – 2020”Federal Program

The key objectives of the Program with regard to GL ONASS Space Complex:

Phase 2 (2016 - 2020):1. To update the GLONASS constellation with Glonas s-K satellites (of 2nd series);

2. To complete modernization of the ground control segment andtime scale generation & synchronization facilities.

GLONASS Space Complex Architecture

4

Glonass M 2003

Glonass K(of 1st series)2011

Glonass K (of 2nd series)2016

Space SegmentGeneration and transmission of navigation signals (SIS)Orbit: circular, H= 19100 km, I= 64.8 degreesConstellation : 24 operational satellites in 3 planes (8 satellites per a plane)6 spare satellites (2 satellites per a plane)

Ground Control SegmentSatellites control & commandingClock and Orbit determinationSystem Control CentreCommanding & Measuring Stations

Launch Vehicles

Development and replenishment of the orbital group

Synchronization FacilitiesGLONASS Space Complex time scale generation and maintenanceNavigation signals phases synchronization

Baikonur Plesetsk

Proton M LVBreeze M booster

3 Glonass S/Cs

Soyuz 2 LVFregat booster1 Glonass S/C

GLONASS constellationGLONASS constellation

5

Constellation status as on 07 of November, 2013

Total - 29 S/CsOperational - 24 S/CsSpares - 3 S/CsUnder investigation - 1 S/CUnder flight test - 1 S/C

Constellation status as on 07 of November, 2013

Total - 29 S/CsOperational - 24 S/CsSpares - 3 S/CsUnder investigation - 1 S/CUnder flight test - 1 S/C

225°

270°

315°

0°

45°

90°

135°

180°

Argument of latitude

I II IIIOrbital planes

743

+06

8

730

+01

1

742

+06

4

734

+01

5721

-02

13

737

-01

12

723

+00

11

717

-07

10

736

-02

9

738

-01

16

716

+00

15

715

-07

14

722р14

732

+03

23

735

+02

24

714р17

724

-03

18

701л

-05

21

720

+03

19

719

+02

20

725

+04

21

731

-03

22

745

+057

744

+05

3

746

+04

17

728

-04

2

733

-046

Passive satellites(ETALON-1, ETALON-2)

241E-2

232E-1

2 747

-04

712т8

Under investigationХХХт

BackupХХХр

Under flight testХХХл

Block 48

Launch Facilities&Vehicles

6

Baikonur :Proton-M LV;Breeze-M booster;Payload: 3 Glonass-M S/Cs, or

3 Glonass-K S/Cs, or3 Glonass-K S/Cs (of 2nd series);a launcher adapter

Plesetsk :Soyuz-2 LV;Fregat booster;Payload: a Glonass-M S/C, or

a Glonass-K S/C, ora Glonass-K S/C (of 2nd series);a launcher adapter

Space Segment Modernization

7

Glonass-MDesign life 7 yearsMass 1415 kgAFSs 3 CAFsL1OF, L1SF, L2OF, L2SF, L3OC (from #55, 2014)Crosslink (RF)Laser Ranging

Glonass-K (of first series)

Design life 10 yearsMass 935 kgAFSs 2 CAFs+2 RAFsSolar Arrays single-junction GaAsL1OF, L2OF, L1SF, L2SF, L3OСCrosslink (RF)Laser Ranging SAR

Glonass-K (of second series)

Design life 10 yearsMass 1645 kg (estimate)AFSs 2 Cs + 2Rb (base option)Batteries Lithium-IonSolar Arrays triple-junction GaAsL1OF, L2OF, L1SF, L2SF,L1OC, L1SC, L2OC, L2SC, L3OСCrosslink (RF + optical)Laser Ranging SARAdditional clock slot for advanced technology qualification

8

Phase center of antenna transmitting L1OC, L1SC, L2SC, L2OC, L3OC navigation signals

Phase center of antenna transmitting L1OF, L1SF, L2OF,

L2SF navigation signals

S/C CoGcalculated position

LRR phase center

LRR

Phase center of antenna transmitting L1OF, L1SF, L2OF, L2SF, L3OC navigation signals

LRR phase center

LRR

Glonass-K S/C (of 2nd series)Glonass-K S/C (of 1st series)

Position of phase center of Position of phase center of

navigation antennae and LRRnavigation antennae and LRR

S/C CoGcalculated position

Phase Centers of antennae transmitting navigation C DMA signals and LRR phase centers are in the axis which passes through the S/C CoG and di rected to the Earth

9

GLONASS Constellation Replenishment ProgramGLONASS Constellation Replenishment Program

Total number of S/CsS/Cs under flight test

Launch schedule for 2013-2015

10

225°

270°

315°

0°

45°

90°

135°

180°

Argument of latitude

I II III

8

1

4

5

7

3

2

6

21

20

19

18

17

24

23

22

1*

13

12

11

10

9

16

15

14

14*

10*

5*

23*

19*

30-satellite GLONASS Constellation with 24 Satellite s in nominal positions and 6 Satellites Positioned in between Sl ots

30-satellite GLONASS Constellation with 24 Satellite s in nominal positions and 6 Satellites Positioned in between Sl ots

11

225°

270°

315°

0°

45°

90°

135°

180°

Argument of latitude

I II III

8

1

4

513

12

11

2*

9

16

15

6*

7

3

2

6

IV V VI

8

1

4

521

20

19

18

17

24

23

22

23

23*

18

19

20

20*

22

15*

11*

17

2

6

30-satellite GLONASS Constellation with 24 Satellite s in nominal positions and 6 Satellites Positioned in Additional Planes

13

12

11

10

9

16

15

14

12

Thank you for your attention!

ISC “M.F. Reshetnev “Information Satellite Systems”662972, Lenin Str. 52, Zheleznogorsk, Krasnoyarsk region, Russia

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