1. national programs - nasa · 1. national programs australia china india japan korea russia saudi...
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WPLTN Network Report
1. National ProgramsAustralia
China
India
Japan
Korea
Russia
Saudi Arabia
2. Summary
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Yarragadee
Mt Stromlo
1m SLR
2m SSA
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Yarragadee OVERVIEW: AUSTRALIA
SLR:
Strong operational performance
Significant expansion of site
activities
Space Situation Awareness:
Automated laser tracking of space
debris: 5cm @ 1,000 km
Expansion of international
collaboration for SSA
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Distribution of the Chinese SLR station
6 sites in China + 1 in Argentina
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Technical upgrades completed:
1) 7 laser [kHz picoseconds]
2) 10 ps event timers
3) kHz ranging controllers for
all stations
4) Daylight tracking packages
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Status of Status of Chinese SLR NetworkChinese SLR Network
SLR station kHz
ranging
MEO
tracking
GEO
tracking
Daylight
tracking
passes
Last year
Shanghai √√√√ √√√√ √√√√ √√√√ 2990
Changchun √√√√ √√√√ √√√√ √√√√ 7580
Beijing √√√√ √√√√ χχχχ √√√√ 1100
Yunnan √√√√ √√√√ χχχχ √√√√ 900
Xi’an √√√√ √√√√ χχχχ χχχχ 100
Wuhan √√√√ χχχχ χχχχ χχχχ Under developing
TROS-2 χχχχ χχχχ χχχχ χχχχ Under developing
San JuanSan Juan χχχχ √√√√ χχχχ χχχχ Under developing
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HYHY--2 satellite2 satellite� Altitude: 971km
� Eccentricity: 0.00117
� Inclination::::99.35 degree
� Orbit:::: Circular, Sun-Synchronous
14 days repeat orbit, normal
� Anticipative Launch Date: July, 2011
� Expected Mission Duration: 3-5 years
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SLR Stations in JAPAN
日本地図と局の場所
Koganei (7308/7328)
NICT
Simosato (7838) JCG
Tanegashima (7358)
JAXA
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� Telescope
- Bi-static
- T/R = 17/60cm
� Laser
– Wavelength:532nm
– Pulsewidth:70psec
– Energy:120mJ
� Time Frequency source
– Cesium clock
� Repetition rate
– 4Hz
SIMOSATO SLR Station Since 1980’
Recent UPGRADE FY2009-2010
– Mono-static
– 75cm diameter
–
– 20psec
– 60mJ
–
– 5Hz ( A032ET TI mode)
Upgrade
Upgrade
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System controlled remotely from TKSC.
Observation weight on High satellites, especially
QZS launched in 2010.
World record of return rate from ETS-VIII, QZS-1
Tanegashima GUTS SLR Station
JAXA
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WPLTN Report on Korean SLR
Program
WPLTN Report on Korean SLR
Program
The 17th International Workshop on Laser Ranging
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Report on Korean SLR Program
13
� ARGO Overview• Name of Korean SLR program
• Development period : 2008 – 2014 (7 years)
• Final Goal
� One mobile system(40cm/10cm) : ARGO-M
� One fixed system(1m) : ARGO-F
� ARGO-M• SRR(Sep. 2008), SDR(May 2009), PDR(Dec. 2009), CDR(March 2011)
• The phase of manufacture or fabrication : Now
• System integration and verification : November 2011
• Operational test : June 2012
� ARGO-F
2011 2012 2013 2014
SRR(2011.10)
SDR(2012.05)
PDR(2012.12)
CDR(2013.08)
SI & Verify(2014.12)
Legend : SRR(System Requirement Review), SDR(System Design Review)PDR(Preliminary Design Review), CDR(Critical Design Review)
� Official Operation for ILRS Societies• ARGO-M : July 2012, ARGO-F : July 2015
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5 fixed sites7 next-gen systems to deploy
Russian Laser Tracking Network
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Fixed-station version
Unified SLR station near Moscow (Shelkovo town)
SLR system
Telescope dome
Operator workplaces
Ranging Angular measurements Photometry
SC orbit height: up to 36,000 km
NP RMS errors: 0,5 to 1 cm
Star magnitude up to: 14m
RMS of measurement 1 – 2 arcsec
for SC angular velocity up to 40 arcsec/sec
Star magnitude up to: 13m
Brightness measurement RMS error
less than 0,2m
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Ranging Angular measurements Photometry
SC orbit height: up to 36,000 km
NP RMS errors: 0,5 to 1 cm
Star magnitude up to: 14m
RMS of measurement 1 – 2 arcsec
for SC angular velocity up to 40 arcsec/sec
Star magnitude up to: 13m
Brightness measurement RMS error
less than 0,2m
Working platform with the installed equipment, containers, and a telescope
Unified SLR station (transportable version)
at the Baikonur launching site
System in operationSystem under coversSystem under covers
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The small-size SLR system is currently in serial production. During the 2011 – 2012, it is planned to install 7 such stations within the Russian territory and abroad. Three such stations will be used in combination with the VLBI systems near St Petersburg, near Irkutsk, and in the Northern Caucasus, to form collocation sites.
The site in the Northern Caucasus is in operation since April, 2011
Ranging Angular measurements Photometry
SC orbit height: up to 23,000 km
NP RMS errors: 0,5 to 1 cm
Star magnitude up to: 12m
RMS of measurement 1 – 2 arcsec
for SC angular velocity up to 40 arcsec/sec
Star magnitude up to: 11m
Brightness measurement RMS error
less than 0,2m
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Saudi Arabia
SALRO
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Operational for 20 years
Upgrade due in 2013
SALRO
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17th ILRS Workshop 16-20 May 2011
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WPLTN Summary
18 sites operational
Significant % of global data
13 new sites in development in 5 members
Several satellite programs
New lunar and space debris capabilities
Very strong program momentum