glonass status update. mcc activity in glonass program. ·...

Информационно-аналитический навигационный центр ЦУП-М ЦНИИмаш

GLONASS Status Update.MCC activity in GLONASS Program.

ILRS Canberra Workshop 2006

Federal Space Agency

V.D. Glotov, S.G. Revnivykh, V.V. Mitrikas

Russian Mission Control Center

______________________________________________________________________

2Информационно-аналитический навигационный центр ЦУП-М ЦНИИмаш

OutlineOutline

� GLONASS StatusGLONASS Status

�� MCC activity in GLONASS ProgramMCC activity in GLONASS Program

�� GLONASS SLR data analysisGLONASS SLR data analysis

�� ConclusionsConclusions


SLR – one of the basic elements of GLONASS

Conditions:

�World wide SLR stations net

�Highest direct measurements accuracy

� Precise geodetic base

� Importance:

� Improving of the geodetic base for GLONASS on the way to ITRF

� Studying and improving of the SC motion model etc.

�Calibration and validation of the microwave means

� Testing and validation of the software and analysis results

�Monitoring of the real on-board ephemeris and clock


New Presidential Initiatives

� Directive issued at January 18, 2006

� To ensure GLONASS minimum operational capability (constellation of 18 NSV) by the end of 2007

� To ensure GLONASS full operational capability (constellation of 24 NSV) by the end of 2009

� To ensure GLONASS performance comparable with that of GPS and GALILEO by 2010

� Directive issued at April 19, 2006

� To ensure the navigation equipment mass production: encourage the industry in the manufacture renovation

�Mass market development

Federal GLONASS Program Update


Basic Document for GLONASS Development

�Federal GLONASS Program for 2002-2011. �Approved by the Government Resolution at 20 August 2001, #587

�The Program Update�Program update approved by the Government Resolution at July 14 2006, # 423

Программа развертывания орбитальной группировки ГЛОНАСС

6

8 8 89

1011

13 1314 14

15

18 18

20 20

9

24242424242424

0

3

6

9

12

15

18

21

24

27

30

numder of operational satellites in the constellation

Бл ок 31

25. 12.02

Блок 30

0 1.12. 01

Б лок 32

10. 12.03Бл ок 35 Блок 36 Бл ок 37

Бл ок К1

Бл ок К3 Блок К3Блок 3 8 Бл ок 39 Бл ок 40Бл ок 33

26.12 .03

Бл ок 34

25. 12.03

Глона сс-К (ЛИ)

2001 2002 2003 2004 2005 2007 2008 2009 2010 2011 20122006

Блок 4 1

GLONASS deployment program

GLONASS deployment

based on the GLONASS

Program Update


GLONASS Interface

Informational Analytical Center ( department of the Russian Mission Control Center) since August 15 has been formally assigned by the Federal Space Agency as the GLONASS official information portal for users� Daily brief bulletins for GLONASS and GPS status based on the global data available (IGS network)

� GLONASS Control Center (Space Force) information

� NAGU generation

� Monthly bulletin with deep analysis of GLONASS performance

� GLONASS news

� GLONASS ICD

IAC is now acting as positive feed-back in the GLONASS control segment

www.glonass-ianc.rsa.ru


International Cooperation

IGLOS Pilot Project

The International GLONASS - Pilot Project (IGLOS-PP) is a pilot service of the International GPS Service

(IGS) to track and analyse data from the Russian GLONASS satellite constellation. The products from the Service should facilitate the use of combined GLONASS

and GPS observations for scientific and engineering applications, and allow users to experiment with the combined systems

as a prototype Global Navigation Satellite System.


ILRS support for GLONASS (1)

GLONASS satellites currently tracked by ILRS stations

GLONASS-87 Plane 1 Slot 3



The ILRS supports this effort by a continuous tracking of three GLONASS

satellites as part of their standard tracking protocol and by delivering precise

GLONASS orbits through one of its Analyses Centers (MCC)


ILRS support for GLONASS (2)

Time interval: 30.07.2006 – 26.08.2006

18507Total

16220GLONASS-03

15154GLONASS-22

14133GLONASS-07

StationsPassesSC


SLR data analysis ГЛОНАСС-03. Статистика сеансов.

0

10

20

30

40

50

60

70

03.0

7.2005

06.0

7.2005

09.07.20

0512

.07.200

515

.07.20

0518.0

7.2005

21.0

7.2005

24.0

7.2005

27.0

7.2005

30.07.20

0502

.08.200

505

.08.20

05

ДАТАN

-P,N

PA

S,N

ST

0

100

200

300

400

500

600

DU

R

N-P NPASNST DUR

-80

-60

-40

-20

0

20

40

60

03.07.2005 06.07.2005 09.07.2005 12.07.2005 15.07.2005 18.07.2005 21.07.2005 24.07.2005 27.07.2005 30.07.2005 02.08.2005 05.08.2005

ДАТА

ME

(см

)R N B

SLR dataSLR data

Orbit accuracyOrbit accuracy


GLONASS-89. Difference between SLR and

navigation orbits.

-5

0

5

10

15

20

25

30.7.2006 4.8.2006 9.8.2006 14.8.2006 19.8.2006 24.8.2006

DATA

R,B

(см

)

-50

-40

-30

-20

-10

0

10

20

30

40

N(см

)

R B N

Potential GLONASS Performance

30 cm


IAC-ESOC IAC-CODE ÑODE-ESOC

R01

_796

R02

_794

R03

_789

R04

_795

R06

_701

R07

_712

R08

_797

R17

_787

R18

_783

R19

_798

R20

_793

R21

_792

R22

_791

R23

_714

R24

_713

1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

R01

_796

R02

_794

R03

_789

R04

_795

R05

_711

R06

_701

R07

_712

R08

_797

R17

_787

R18

_783

R19

_798

R20

_793

R21

_792

R22

_791

R23

_714

R24

_788

R24

_713

3

2.8

2.6

2.4

2.2

2

1.8

1.6

1.4

1.2

1

0.8

0.6

0.4

0.2

0

G01

G02

G03

G04

G05

G06

G07

G08

G09

G10

G11

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

G27

G28

G29

G30

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

G01

G02

G03

G04

G05

G06

G07

G08

G09

G10

G11

G13

G14

G15

G16

G17

G18

G19

G20

G21

G22

G23

G24

G25

G26

G27

G28

G29

G30

0.2

0.15

0.1

0.05

0

Differences between IAC and official IGS analysis centers solutions

RMS of GLONASS orbit difference, m RMS of GPS orbit difference, m

RMS of GPS clock difference, ns

Estimation interval: 01/09/05 - 01/09/06

RMS of GLONASS clock difference, ns

2525 cmcm

1414 cmcm

0.0.3535 nsns

1.1.55 nsns


GLONASS Performance Improvement for 2005-2006

SISRE, м

Time since 15.07.2005, days

380

370

360

350

340

330

320

310

300

290

280

270

260

250

240

230

220

210

200

190

180

170

160

150

140

130

120

110

1009080706050403020100

SIS

RE

, m

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

10 м

8.5 м

7 м


ILRS support for GLONASS.

ConclusionsConclusions

• ILRS support is very important for GLONASS modernization by the way to the Global Navigation Satellite System

• Need to continue/increase tracking of GLONASS satellites by ILRS:

Collocation in space (Microwave / Laser)

• IGLOS-PP demonstrates the extensibility of IGS to accommodate other microwave systems (GLONASS, GALILEO).


Thank you forThank you for your attention!your attention!

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