pirada techavijit [email protected] [email protected] ravit sachasiri...

Towards International Cooperation and Capacity Building between Space

Agencies: A Case of GISTDA and NSPO

Pirada Techavijit [email protected] Sachasiri [email protected]

GISTDA

mailto:[email protected]



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


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


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

E-mail

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

E-mail

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


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


Joint Programming


Increased shared value Decrease time between

acquisition Better response to

emergency situation

Joint Programming – Existing International CooperationDisaster

Response


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


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


Network Implementation Plan


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)


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


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


Network status monitoring at UniNet

Bandwidth used during data download from Kiruna > 30 Mbps


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


THANK YOU


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


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


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


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


TM: OKTC: Fail

Antenna problem




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


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


NSPO Tainan, Taiwan

TM: OKTC: OK




TM: OKTC: Fail

NSPO Software

Processing error


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,


TaiwanTM: OKTC: OK

Successful test of VC1 extraction

28/3/2011 Software THEOS


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,


Taiwan-

Successful test of VC extraction software

21/4/2011 TT&C THEOS


- -S-band antenna failure


Record after GISTDA’s visit to NSPO - continued

Date Activity Satellite Monitoring&Control S-Band Station Result Remark



NSPO Tainan, Taiwan

TM: OKTC: OK

Tainan 1-pass per day



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,


TaiwanTM: OKTC: OK

Start of Tainan 2-pass per day

5/5/2011 Software THEOS -NSPO Tainan,

Taiwan-

STOL Operational


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


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


pirada techavijit [email protected] [email protected] ravit sachasiri...

Documents

chiangmai slide

gistda slide

cheingmai slide

secured network

similarity of satellite

remote assistance

emergency situation

current system agreement