Towards International Cooperation and Capacity Building between Space
Agencies: A Case of GISTDA and NSPO
Pirada Techavijit [email protected] Sachasiri [email protected]
GISTDA
GISTDA (Geo-Informatics and Space Technology Development Agency)• Public Organization• Responsible for: remote sensing space technology
• Operates Thailand Earth Observation System (THEOS -> Thai Chot) • first Thai earth observation satellite
• Thai Chot was launched on 1st October 2008
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
National Space Organization (NSPO)
• Taiwan’s civilian space agency • Established in October 1991• Involved in the several areas
including:• development of space
exploration• satellite construction and
development• research in aerospace
engineering• remote sensing• Sciences such as
Astrophysics, atmospheric science, information science and defense
FORMOSAT-2FORMOSAT-1
FORMOSAT-3
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Cooperation Project
Technical Workshop/Trainin
g
Image Sharing
Remote System
management
Satellite/Ground
Anomaly Management
Post-maneuvers evaluation
Instrument Calibration and
Evaluation
Technical Assistance
Cooperation Framework
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Cooperation between GISTDA and NSPO NSPO’s engineers visited GISTDA in 2010
Observe current system Agreement on requirements and setup of communication
channel
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Cheingmai
Remote System Management (Ground Sharing) Increase system reliability Co-operation with NSPO due to similarity of satellite
system
SBS GISTDA
RF
RF
NSPO’s satellites
1.6 Mbps S-Band D/LS/C VC0, VC1
4 kbps S-Band U/LS/C Command
SOCCNSPO
Real-time from RTSS/C RT telemetry (VC 0)
Real-time to RTSS/C RT telecommand
VPN
Non Real-time - Scheduled Request/Confirm- Emergency Cases
VPNSCC
GISTDA
SCC Process VC0 and VC1 Push to SOCC
Non Real-time- SCC Push S/C VC0 and VC1- SOCC Push TLE
FTP
RF
RF
THEOS 400 kbps S-Band D/LS/C VC0, VC1
4 kbps S-Band U/LS/C Command
SCCGISTDA
Real-time from RTSS/C RT telemetry (VC 0)
Real-time to RTSS/C RT telecommand
VPNTS2
VPNTS3
Non Real-time - Scheduled Request/Confirm - Emergency cases
FTPVPNTS1
Non Real-time- RTS Push of S/C VC0 and VC1- SCC Push TLE
RTS NSPO
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Remote System and Anomaly Management
Setup of VPN connection between the two sites
Two parallel tunnels over different networksThe secure channel allow remote system
managementSatellite anomaly and Ground system
anomaly statistics and details are shared
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Joint Programming
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Increased shared value Decrease time between
acquisition Better response to
emergency situation
Joint Programming – Existing International CooperationDisaster
Response
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Technical assistance/workshop
Both organizations share their core competences
Done both in person and remotelyRemote assistance and workshop includes:
E-learning Online training Remote Access over secured network to
sensitive equipments Exchange of information
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Topics for Technical Workshop Training CourseDegradation trend and parameter
adjustment for degraded equipmentExperience training operation on redundant
equipmentExperience from bug fixing on Flight
SoftwareOptimization of Attitude and Orbital
maneuvers
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Network Implementation Plan
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Currently, all activities are done over the internet.
Current bandwidth available is approx. 5 Mbps
BUT
All 3 of GISTDA’s site is connected to the UniNET
Which is part of TEIN 3 research network
NSPO is in discussion to connect to the TEIN3 network through the University in Taiwan
Possible Bandwidth – 20 Mbps
What would be possible?
Uploading period to MY server
o Tested files (THEOS images) was uploaded via internet connection
o 3 Image files (199 MB, 189 MB, 748MB) = 1.5 GB
o Using TEIN3 Route with UniNet servero Topology: ThaiREN Node – TEIN3 – Singapore
Nodeo Bandwidth: 20 Mbpso Upload Time for 1.5 GB data: 4.52 min (748 MB data uses 2-3 min)33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012,
Chiangmai
Loop Test Bangkok (UniNet) - Kuala Lumpur (Universiti Putra Malaysia)
S-Band Station (SiRacha)
X-Band Station (Bangkok)
Production
Central Archiving Catalogue Server
THEOS Image Telemetry
Quick Delivery
Media/FTPService
Ordering/QuotationOrder TrackingProduct DeliveryInvoice/Billing
Request
Consultation
User
14
Existing usage of UniNET - THEOS Polar station
Programming
X-Band PolarStation (Kiruna)
Raw Data Storage
International User(R&D/Universities)
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
20 Mbps
155 Mbps
DANTE:TEIN3/GEANT2
155 Mbps
Polar Station Data Transfer
Acquisition of Satellite data in Sweden All Data are transferred for further processing
in Thailand.
The polar station is connected with SUNET.
GISTDA’s station is connected with UniNet.
The data volume is around 690 MB to 30 GB image data per one orbits (~2 orbits/day) or upto 60 GB per day
Use of Data transfer over GEANT and TEIN3 greatly reduces transfer time in case of emergency situation
Acquisition in
Sweden
Replay Production in Thailand
Network
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Network Topology: Overall
16
SSC Kiruna
SUNET
NORDUnet Geant2
TEIN3
Thai REN
ThaiSarn
UniNet
GISTDA
New Implementation- Domestic - Own
investment
SSC Network*Kiruna-Stockholm*Own Investment
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Network status monitoring at UniNet
Bandwidth used during data download from Kiruna > 30 Mbps
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Conclusion
GISTDA is employing the research network to improve response to emergency situations
Remote maintenance and assistance greatly reduce the cost of maintenance
Plans to connect to NSPO through the Research network
Tests show that bandwidth available will be multiple fold over the current available system
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
THANK YOU
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Chiangmai
Existing Connection from TEIN 3
33rd Asia-Pacific Advanced Network Meeting, 13-17 February 2012, Cheingmai
Remote System management
GISTDA faces problem with S-band Antenna system Slow recovery time due to foreign contractors Reduced communication with THEOS
28 Jun 2010 : GISTDA-NSPO Meeting at NSPO 16 Sep 2010 : Cooperation Meeting between
NSPO&GISTDA at SiRacha station Thailand on the Topic “Implementation of inter-operability between NSPO and GISTDA”
Both party agreed to implement the inter-operability of system.
IntroductionS-Band System
The system consists on a 4.5 meter diameter antenna with S-band capabilities providing simultaneous transmission and reception capabilities for LEO satellites. The antenna provides satellite tracking by means of Program Tracking mechanisms.
Maintenance • Weekly maintenance
• GMCs and CORTEX: Restart• Grease Pump• Oil Pump
• Monthly maintenance• Antenna and Hexapod (Nut, bolt and cable)• Rack Maintenance: Visual inspection and remote function• LAN Hub• CORTEX and ADU: Visual inspection• Operation with GMC2• Scan virus• GMC (G/T)
S-Band System
Maintenance • Yearly maintenance
Rack Maintenance: Visual inspection and local function Switch Control Unit Test Interface Unit: G/T (Signal test) and visual inspection F&T Subsystem COETEX: Cleaning Down Converter Up Converter MCG GMCs: Backup data Servo Control Unit Anemometer Line Amplifier: Signal test SSPA
S-Band System
Maintenance • Yearly maintenance (cont’d)
• Antenna Drive Unit: Visual and power check• Dehydrator• Antenna and HXP: Cleaning and corrosion• Level Diagram• Change Oil and Grease
S-Band System
List of anomaly• Software
• Monitoring and control program.Behavior: Error in this program caused malfunction of other equipments.Solution: 1. Request for support from software owner (updated patch, re-configuration, etc.).
2. Back up software. 3. Use as it. Cause: Bug in software.
S-Band System
List of anomaly• Software
• Servo driving unit program.Behavior: Error in this program caused hexapod can’t be controlled.Solution: 1. Request for support either on-site support or remote support from Zodiac
Cause: ESD in EEPROM of servo driving unit
S-Band System
List of anomaly• Hardware
• HPABehavior: 1. Inconstant output power.
2. No output available. 3. Lost communication with M&C
program. 4. Completely break down
5. High temperatureSolution 1. Repair by HPA owner.Cause: Short circuit in HPA. High electrical power drive to HPA
S-Band System
List of anomaly• Hardware
• Hexapod Behavior: Cracking.
Solution: Request on-site support from Zodiac Cause: Bolt brake broken
S-Band System
Inter-Operability
Inter-operability present itself as a solution
Increase system reliabilityCo-operation with NSPO due to
similarity of satellite system
Cortex Parameters: Tele-command
GISTDA - NSPO Workshop at Sriracha
THEOS Parameters: FS-2 Parameters:
• Carrier Frequency: 2035.9625 MHz• Polarization: RHCP• IF Carrier Frequency: 70,000,000 Hz• Operating Mode: PM• Modulation Index: 1.2 rad.• Filter Bandwidth: none• IF Sweeping: OFF• Sweep Rate: 30,000 Hz/s• Sweep Range(+-): 80,000 Hz• Data Bit Rate: 4 Kbps• PSK Subcarrier Frequency: 16,000 Hz• PCM Code: NRZ-L• Subcarrier Shift Keying: BPSK
•Carrier Frequency: 2039.645833 MHz• Polarization: RHCP• IF Carrier Frequency: 70,000,832 Hz• Operating Mode: PM• Modulation Index: 1.0 rad.• Filter Bandwidth: none• IF Sweeping: RZ• Sweep Rate: 20,000 Hz/s• Sweep Range(+-): 75,000 Hz• Data Bit Rate: 4 Kbps• PSK Subcarrier Frequency: 16,000 Hz• PCM Code: NRZ-L• Subcarrier Shift Keying: BPSK
23 May 2011GISTDA - NSPO Workshop at Sriracha
Cortex Parameters: Telemetry THEOS Parameters: FS-2 Parameters:
• Carrier Frequency: 2211 MHz• Polarization: RHCP & LHCP• Diversity Combining Enable: Yes• Operating Mode: Combining• IF Input Frequency: 70,050,000 Hz• Acquisition Range: 150 KHz• Carrier Acquisition: Normal• AGC time Constant =1ms• Loop Filter bandwidth = 0.3%• PCM Demodulation: BPSK• Frame Sync. Enable: Yes• Sync Word (Hex): 1ACFFC1D• Sync Word Size: 32 bits
• Carrier Frequency: 2215 MHz• Polarization: RHCP & LHCP• Diversity Combining Enable: Yes• Operating Mode: Combining• IF Input Frequency: 70,000,000 Hz• Acquisition Range: 130 KHz• Carrier Acquisition: Normal• AGC time Constant =1ms• Loop Filter bandwidth = 0.3%• PCM Demodulation: BPSK• Frame Sync. Enable: Yes• Sync Word (Hex): 1ACFFC1D• Sync Word Size: 32 bits
23 May 2011GISTDA - NSPO Workshop at Sriracha
Cortex Parameters: Telemetry (2) THEOS Parameters: FS-2 Parameters:
• Frame/Block Size: 1279 Bytes• Operating Mode: Normal• Descrambling: Descrambling• R-S decoding: On• Frame Sync Input: Internal• Roll-off factor = 0.1• PCM Code: NRZ-L• Data Rate: 400 Kbps• Matched Filter: Integral
• Frame/Block Size: 1279 Bytes• Operating Mode: Normal• Descrambling: Descrambling• R-S decoding: On• Frame Sync Input: Internal• Roll-off factor = 0.1• PCM Code: NRZ-L• Data Rate: 1,600 Kbps• Matched Filter: Integral
23 May 2011GISTDA - NSPO Workshop at Sriracha
HistoryDate Activity Result Remark
Sep-Oct 2010
Setup of Virtual Private Network (VPN) and verification of communication channel
OK
Nov 2010 –Jan 2011
Cortex Preparation and configuration, Setting up of the connection between host satellite operation software and remote S-Band system
OK NSPO added extra
functionality to the
cortex to support GISTDA
Jan – Feb 2011
Actual satellite pass test between the two hosts
OK
Mar 2011 - present
Software test, NSPO support for GISTDA daily passes
OK
23 May 2011GISTDA - NSPO Workshop at Sriracha
Test Record prior GISTDA’s visit to NSPO
Date Activity Satellite Monitoring&Control S-Band Station Result Remark
26/1/2011 TT&C FORMOSAT-2NSPO SOCC,
Hsinchu, Taiwan
GISTDA, Siracha, Thailand
TM: OKTC: Fail
Antenna problem
28/01/2011 TT&C FORMOSAT-2
NSPO SOCC, Hsinchu, Taiwan
GISTDA, Siracha, Thailand
TM: OKTC: Fail
Antenna problem
31/01/2011 TT&C FORMOSAT-2
NSPO SOCC, Hsinchu, Taiwan
GISTDA, Siracha, Thailand
TM: OKTC: Fail
Antenna problem
8/02/2011
Tainan site installed an additional
TMU-B
- -NSPO Cortex, Tainan, Taiwan OK
ZODIAC provided
9/02/2011 TT&C FORMOSAT-2NSPO SOCC,
Hsinchu, Taiwan
GISTDA, Siracha, Thailand
TM: OKTC: OK
10/02/2011 TT&C THEOS
GISTDA -SOC, SiRacha, Thailand
NSPO Tainan, Taiwan
TM: OKTC: OK
17/02/2011 TT&C THEOS
GISTDA -SOC, SiRacha, Thailand
NSPO Tainan, Taiwan
TM: OKTC: OK
17/02/2011 TT&C FORMOSAT-2
NSPO SOCC, Hsinchu, Taiwan
GISTDA, Siracha, Thailand
TM: OKTC: Fail
NSPO Software
Processing error
23 May 2011GISTDA - NSPO Workshop at Sriracha
Record after GISTDA’s visit to NSPODate Activity Satellite Monitoring&Control S-Band Station Result Remark
3/3/2011 Software THEOSGISTDA -SOC,
SiRacha, ThailandNSPO Tainan,
TaiwanTM: OKTC: OK
First Extraction of THEOS VC0
and VC1
3/3/2011 Software THEOSGISTDA -SOC,
SiRacha, ThailandNSPO Tainan,
TaiwanTM: OKTC: OK
Successful test of VC1 extraction
28/3/2011 Software THEOS
GISTDA -SOC, SiRacha, Thailand
NSPO Tainan, Taiwan
TM: OKTC: OK
2nd test of VC0 and VC1 - successful
19/4/2011 Software FORMOSAT-
2/ THEOS - - -Completion of VC extraction
software
20/4/2011 Software FORMOSAT-
2/ THEOSGISTDA -SOC,
SiRacha, ThailandNSPO Tainan,
Taiwan-
Successful test of VC extraction software
21/4/2011 TT&C THEOS
GISTDA -SOC, SiRacha, Thailand
- -S-band antenna failure
23 May 2011GISTDA - NSPO Workshop at Sriracha
Record after GISTDA’s visit to NSPO - continued
Date Activity Satellite Monitoring&Control S-Band Station Result Remark
22/4/2011 TT&C THEOS
GISTDA -SOC, SiRacha, Thailand
NSPO Tainan, Taiwan
TM: OKTC: OK
Tainan 1-pass per day
22/4/2011 TT&C THEOS
GISTDA -SOC, SiRacha, Thailand
NSPO Tainan, Taiwan
TM: OKTC: OK
First evening pass and mission upload
26/4/2011 Manual FORMOSAT-
2/ THEOS - - -Initiation of ICD and SOP
2/5/2011 TT&C THEOSGISTDA -SOC,
SiRacha, ThailandNSPO Tainan,
TaiwanTM: OKTC: OK
Start of Tainan 2-pass per day
5/5/2011 Software THEOS -NSPO Tainan,
Taiwan-
STOL Operational
23 May 2011GISTDA - NSPO Workshop at Sriracha
2010 2011
Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Activity
Inter-operability schedule 2010 – 2011 (Draft)
Cortex Preparation
/Configuration
Satellite TT&C test
Summarization of TEST & Ratification of ICD
Work Shop at GISTDA:THAILAND
Cooperation Meeting
Work Shop at NSPO:TAIWAN
Work Shop at GISTDA : THAILANDVerify
Link & Network
NSPO support
for THEOS Daily Pass
23 May 2011GISTDA - NSPO Workshop at Sriracha
Weekend passesAntenna training and Information ExchangeFurther workshop as neededAfter the success of ICE with NSPO, GISTDA
hopes to extend ICE with other operatorsCreate a pool of resourcesSeveral organization sharing knowledge
and skills
Future Plan/Discussion
23 May 2011GISTDA - NSPO Workshop at Sriracha