glonass space segment
TRANSCRIPT
GLONASS GLONASS space segmentspace segment
STATUS STATUS & & MODERNIZATIONMODERNIZATION
Joint - Stock Company «Academician M.F. Reshetnev» Information Satellite Systems»
ICG‐7, November 04‐09, 2012 , Beijing, China
2
+01
№ 722
+01
Plane III№ 724
№ 735 № 732№ 714
№ 725
-03 +04
‐03
+03+02
Plane I
№ 728
№ 733
-04
+05
№ 727
№ 729
+03
№ 720
№ 717‐07
№ 715
№ 716
‐07
00
№ 746
+04
№ 719
+02
№ 736
№ 723
№ 721
‐02
00
№ 730
№ 734
№ 731
№ 726
№ 737
-02
‐01
‐01
№ 742
№ 745
№ 743 № 744
+06
+05
-04
17
2423
17
19 20
21
22
№ 701F
Plane II
1516
9
10
1112
13
14
№ 738
8
7
6
5
4
3
2
1
24 SV Nominal operationNominal operation
Spare ( №№ 714, 722, 743)Spare ( №№ 714, 722, 743)3 SV In maintenance (№№ 726, 727, 729) In maintenance (№№ 726, 727, 729) 3 SV
Flight tests («Glonass-K», № 701)Flight tests («Glonass-K», № 701)1 SV
Orbital constellation statusOrbital constellation status04.104.111.2012.2012
№ 712
+06
Constellation maintenanceConstellation maintenance
3
Launches in 2011
26.02.2011 the first «Glonass-K»
03.10.2011 – 1 SV «Glonass-M»
04.11.2011 – 3 SV’s «Glonass-M»
28.11.2011 – 1 SV «Glonass-M»
Ground store:
1 SV «Glonass-К» (№ 702F)
3 SV’s «Glonass-M» (№ 747, № 748, № 749)
26.02.2011
28.11.2011
04.11.2011
03.10.2011
«Glonass» «Glonass-M» «Glonass-K» «Glonass-K2»
GLONASS ModernizationGLONASS Modernization
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UNDER DEVELOPMENT
UNDERFLIGHT TESTS
UNDER NOMINAL
OPERATION
HAVE BEENDECOMMISSIONED
first launch first launch first launch planned launch
19198282 2020111120032003 20120155
««GlonassGlonass‐‐MM»»MAIN FEATURES & MODERNIZATIONMAIN FEATURES & MODERNIZATION
5
MAIN FEATURES- 3 Cs clocks- Ni-H Batteries- Silicon solar cells- 7 years design life- Single / Triple launch capabilities- Nav. signals transmission
in frequency bands L1&L2- Space Laser Ranging - advanced technology
demonstration capabilities
PRE - MODERNIZATION- L1OF; L1SF; L2OF; L2SF
POST MODERNIZATION- L1OF; L1SF; L2OF; L2SF,
L3OC (planned from 2014)
6
PRE – MODERNIZATION (701F)- Nav. antenna (L1OF, L1SF, L2OF; L2SF)- Nav. antenna (L3OC)- Solar array
(single-junction GaAs solar cells)
POST MODERNIZATION (702F)- Improved nav. antenna (L1OF; L1SF; L2OF; L2SF, L3OC)
- Solar array (triple-junction GaAs solar cells)
««GlonassGlonass‐‐KK»»FEATURES & IMPROVEMENTSFEATURES & IMPROVEMENTS
MAIN FEATURES- 2 Cs + 2 Rb clocks- Ni-H Batteries- single-junction Ga-As solar cells- 10 years design life- Single / triple launch capabilities- Nav. signals transmission
in L1&L2&L3 frequency bands - Space Laser Ranging- Search & Rescue (COSPAS-SARSAT)
««GlonassGlonass‐‐K2K2»»FEATURES & IMPROVEMENTSFEATURES & IMPROVEMENTS
7
Predicted improvements- improved nav. antenna
L1&L2&L3
MAIN FEATURES- 2 Cs + 2 Rb clocks- Lithium-Ion batteries- triple-junction GaAs solar cells- 10 years design life- Single / Triple launch capabilities- Nav. signals transmission
in L1&L2&L3 frequency bands - Space Laser Ranging- Search & Rescue (COSPAS-SARSAT)- Space Environment Detection System- advanced technology
demonstration capabilities incl.advanced clocks
GLONASS navigation signals modernization
SatelliteFDMA signals CDMA signals
L1 L2 L1 L2 L3
«Glonass-M» L1OFL1SF
L2OFL2SF - -
L3OC(from 2014)
«Glonass-K» L1OFL1SF
L2OFL2SF - - L3OC
«Glonass-K2» L1OFL1SF
L2OFL2SF
L1OCL1SC
L2OCL2SC
L3OCL3OC
9
SUMMARYSUMMARY
• Currently GLONASS system provides worldwide service• Open signals are provided to users in three frequency bands
L1&L2&L3.
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The main indexes of The main indexes of space complex modernization space complex modernization
in frames of new GLONASS Program 2012in frames of new GLONASS Program 2012‐‐20202020
- Navigation signals (FDMA&CDMA) are transmitted in three frequency bands(L1OF, L1SF, L2OF, L2SF, L1OC, L1SC, L2OC, L2SC, L3OC)
- constellation includes 30 satellites - 100 % availability is provided at the open territory- 0,6 m user position accuracy
provided real time using only space complex service
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Thank you for your attention!
JSC «Information Satellite System - Reshetnev Company»RF, 662972, Zheleznogorsk, Krasnoyarsk region,Lenin str.,52.
tel: +7-(391-97)-2-80-08,fax: +7-(391-97) 5-61-46;Dr. V. Kossenko, Dr. A. Crechkoseev, Mr. R. Fatkulin