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GLONASS Status and Progress - US Coast Guard Navigation Center

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Federal Space Agency<br />

<strong>GLONASS</strong><br />

<strong>Status</strong> <strong>and</strong> <strong>Progress</strong><br />

Sergey Revnivykh<br />

CGSIC Meeting<br />

16.09.2008, Savannah, GA, <strong>US</strong><br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Architecture<br />

System Architecture in the <strong>GLONASS</strong> Requirement Document:<br />

Precise<br />

Ephemeris <strong>and</strong> Clock<br />

System<br />

Earth Attitude <strong>and</strong><br />

Rotation System<br />

<strong>GLONASS</strong><br />

Space Complex<br />

Wide Area<br />

Augmentation<br />

SDCM<br />

Time Reference<br />

System UTC (SU)<br />

Regional<br />

Augmntns<br />

Geodesy Reference <strong>and</strong> Maps<br />

Special User<br />

Equipment<br />

Civil Users<br />

Equipment<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Space Complex Architecture<br />

<strong>GLONASS</strong><br />

<strong>GLONASS</strong><br />

Space<br />

Space<br />

Complex<br />

Complex<br />

Ground<br />

Ground<br />

Control<br />

Control<br />

Segment<br />

Segment<br />

Orbital<br />

Orbital<br />

constellation<br />

constellation<br />

Launchers<br />

Launchers<br />

<strong>and</strong><br />

<strong>and</strong><br />

Launch<br />

Launch<br />

Facilities<br />

Facilities<br />

SC<br />

SC<br />

control<br />

control<br />

Glonass<br />

Glonass<br />

PROTON<br />

PROTON<br />

Orbit<br />

Orbit<br />

determination<br />

determination<br />

Glonass-M<br />

Glonass-M<br />

SOYUZ<br />

SOYUZ<br />

Time<br />

Time<br />

synchronization<br />

synchronization<br />

Glonass-K<br />

Glonass-K<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Constellation<br />

‣ Orbit constellation:<br />

24 satellites, 3 planes by 8<br />

satellites<br />

Orbit shift by 120 ° along the<br />

equator<br />

‣ Orbit parameters<br />

orbit – circular<br />

height 19100 km<br />

inclination 64.8°<br />

revolution 11h15min<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Spacecraft<br />

Main Specifications<br />

Guaranteed life time<br />

Spacecraft mass<br />

Power supply<br />

7 years<br />

1415 kg<br />

1450 W<br />

<strong>Navigation</strong> payload<br />

Mass<br />

250 kg<br />

Power consumption<br />

580 W<br />

Clock stability 1*10 -13<br />

‣ Main features<br />

Extended life time<br />

Second civil signal L2<br />

Increased clock stability<br />

Attitude control accuracy<br />

Solar panel pointing accuracy<br />

0.5 deg<br />

2 deg<br />

Better accuracy of the solar panel<br />

pointing<br />

Improved dynamic model<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Injection Scheme<br />

Direct injection<br />

‣ PROTON Launcher<br />

Basic orbit, 200 km<br />

circular<br />

‣ Booster stage<br />

First impulse, transition<br />

orbit<br />

Second impulse, final<br />

orbit<br />

‣ Satellite separation<br />

Initial operations<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Orbit Evolution<br />

24000<br />

i0 = 64.8 град., a0 = 25509 km<br />

23000<br />

Galilieo<br />

22000<br />

hp,e0 = 0.0055<br />

ha,e0 = 0.0055<br />

hp, ha (km)<br />

21000<br />

20000<br />

19000<br />

18000<br />

17000<br />

16000<br />

GPS<br />

Glonass<br />

For GPS: 100 years<br />

worst case<br />

For Galileo: 200 years<br />

worst case<br />

hp,e0 = 0.002<br />

ha,e0 = 0.002<br />

hp,e0 = 0.001<br />

ha,e0 = 0.001<br />

hp,e0 = 0.0003<br />

ha,e0 = 0.0003<br />

hp,e0 = 0.0001<br />

ha,e0 = 0.0001<br />

hp,e0 = 0.00005<br />

ha,e0 = 0.00005<br />

h(Galileo)<br />

h(GPS)<br />

h(Glonass)<br />

15000<br />

14000<br />

0 50 100 150 200 250<br />

Время (годы)<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Ground Control Segment Architecture<br />

‣ SCC – system control center<br />

‣ TT&C – telemetry, tracking,<br />

comm<strong>and</strong>ing station<br />

‣ ULS – uplink station<br />

‣ MS – monitoring station<br />

‣ CC – central clock<br />

‣ SLR – laser tracking station<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Signals (present status)<br />

‣ L1<br />

L1 open FDMA<br />

L1 authorized FDMA<br />

‣ L2<br />

L2 open FDMA<br />

L2 authorized FDMA<br />

‣ L3 to be refined<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Last Year Events: <strong>GLONASS</strong> Launch<br />

BLOCK-36<br />

<strong>GLONASS</strong>-M # 18, 19, 20<br />

26.10.2007<br />

BLOCK-37<br />

<strong>GLONASS</strong>-M # 21, 22, 23<br />

25.12.2007<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Geodesy Reference<br />

Difference of <strong>GLONASS</strong> orbits (range) wrt. ITRF<br />

X<br />

Y<br />

Z<br />

ITRF<br />

=<br />

1 0 0<br />

0 1 0<br />

0 0 1<br />

X<br />

Y<br />

Z<br />

PZ-90.02<br />

ITRF2000 PZ PZ 90.02 90.02<br />

ΔX ΔX = 0.36 0.36 m<br />

ΔY ΔY = --0.08 0.08 m<br />

ΔZ ΔZ = --0.18 0.18 m<br />

Further improvement is foreseen in the AIP<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong>-M Performance wrt St<strong>and</strong>ard<br />

SISRE: result of the first phase of GCS modernization<br />

Sisre ICD<br />

Sisre ICD<br />

5<br />

5<br />

4<br />

3<br />

2<br />

4<br />

3<br />

2<br />

3.7 m ICD<br />

before November 2007<br />

1.8 m<br />

1<br />

1<br />

0<br />

0<br />

03.01.08<br />

03.01.08<br />

13.01.08<br />

13.01.08<br />

23.01.08<br />

23.01.08<br />

02.02.08<br />

02.02.08<br />

12.02.08<br />

12.02.08<br />

22.02.08<br />

22.02.08<br />

03.03.08<br />

03.03.08<br />

13.03.08<br />

13.03.08<br />

23.03.08<br />

23.03.08<br />

02.04.08<br />

02.04.08<br />

12.04.08<br />

12.04.08<br />

22.04.08<br />

22.04.08<br />

02.05.08<br />

02.05.08<br />

12.05.08<br />

12.05.08<br />

22.05.08<br />

22.05.08<br />

01.06.08<br />

01.06.08<br />

11.06.08<br />

11.06.08<br />

21.06.08<br />

21.06.08<br />

01.07.08<br />

01.07.08<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong>-M Clock Stability<br />

<strong>GLONASS</strong>-M Cs atomic clock performance:<br />

01.04.2008 – 01.07.2008<br />

1*10 -13<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Constellation <strong>Status</strong><br />

‣ In constellation:<br />

16 satellites<br />

3 “Glonass”<br />

13 “Glonass-M”<br />

‣ Healthy<br />

14 sats<br />

‣ Decommissionning<br />

2 sat<br />

‣ Next Launch:<br />

25 September 2008,<br />

Block 38<br />

3 Glonass-M<br />

25 December 2008,<br />

Block 39<br />

3 Glonass-M<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Availability (14.09.08)<br />

Global availability is 67-80% (PDOP5°)<br />

Mean availability for a day<br />

Instant availability<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Deployment Program<br />

December 2008 – January 2009<br />

18 satellites.<br />

94% global availability<br />

December, 2009<br />

22 satellites.<br />

99.7% global availability<br />

December, 2010<br />

24 satellites.<br />

99.99% global availability<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Development Program<br />

‣ Continuous global navigation provision plan<br />

‣ Glonass-K flight test (2011)<br />

‣ <strong>GLONASS</strong> accuracy improvement plan<br />

‣ Ground control segment modernization<br />

<br />

<br />

<br />

Ground control network extension<br />

System time <strong>and</strong> orbit improvement<br />

Monitoring network outside Russia<br />

‣ Signal modernization<br />

‣ New signals in <strong>GLONASS</strong>-K (including CDMA)<br />

‣ Interoperability with GPS <strong>and</strong> future GALILEO<br />

Signals<br />

Geodesy system<br />

Time system<br />

‣ Further modernization of <strong>GLONASS</strong> based on new<br />

satellite<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


State Policy<br />

‣ <strong>GLONASS</strong> is a part of the critical state infrastructure providing<br />

national security <strong>and</strong> economy development<br />

‣ Creating, developing <strong>and</strong> sustaining the PNT infrastructure is a<br />

state responsibility<br />

‣ Use of <strong>GLONASS</strong> is m<strong>and</strong>atory for state entities <strong>and</strong> major<br />

sectors of economy<br />

‣ <strong>GLONASS</strong> is used in combination with other GNSS, terrestrial<br />

radio navigation, other navigation means<br />

‣ Basic civil navigation services are free of direct user fees<br />

‣ Open, free access to <strong>GLONASS</strong> information necessary to<br />

develop <strong>and</strong> produce user equipment<br />

‣ International cooperation on GNSS compatibility <strong>and</strong><br />

interoperability<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Presidential Decree on <strong>GLONASS</strong> (May 18, 2007)<br />

‣ Main statements:<br />

Free access to the civil signals<br />

<strong>GLONASS</strong> m<strong>and</strong>atory use for governmental <strong>and</strong> critical applications<br />

‣ Recommended:<br />

<strong>GLONASS</strong> use for regional authorities <strong>and</strong> commercial companies<br />

‣ General coordination of <strong>GLONASS</strong> sustainment, development<br />

<strong>and</strong> application<br />

Federal Space Agency<br />

‣ To the Government:<br />

<strong>GLONASS</strong> promotion, including international cooperation<br />

Digital maps issue to be resolved asap<br />

Preparation of the new <strong>GLONASS</strong> Program for 2012 – 2020.<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


<strong>GLONASS</strong> Program<br />

Last Friday Event:<br />

<strong>GLONASS</strong> Program update approval for 2008-2011 with 67 BRub extra!<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Summary<br />

‣ <strong>GLONASS</strong> system is an element of the critical state<br />

infrastructure, ensuring national security <strong>and</strong><br />

economy development, remains being a dual use<br />

system<br />

‣ Urgent <strong>GLONASS</strong> restoration, development <strong>and</strong> mass<br />

use is one of priorities of the Russian State policy<br />

‣ <strong>GLONASS</strong> development is in a progress in line with<br />

Federal <strong>GLONASS</strong> Program (scheduled up to 2020)<br />

‣ <strong>GLONASS</strong> – essential element of the international<br />

GNSS<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved


Thank you for your interest!<br />

<strong>GLONASS</strong><br />

Sergey G. Revnivykh<br />

Deputy Director General<br />

Central Research Institute of Machine Building<br />

Head of PNT Information Analysis <strong>Center</strong><br />

Sergey.revnivykh@mcc.rsa.ru<br />

www.glonass-ianc.rsa.ru<br />

tel/fax: + 7 495 586 9000<br />

© ИАЦ КВНО ЦНИИмаш 2006. Собственность ИАЦ. All rights reserved

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