Development of GNSS Applications for Space Weather Monitoring in Indonesia

Budan Muslim1) , Joni Effendi2) , Farid 3) and Toni Harun3)

1)Observation Technology Division, Space Science CenterNational Institute of Aeronautics and Space

Jl.Dr. Junjunan 133 Bandung 40173 Indonesia

National Coordinating Agency for Surveys And MappingJl. Jakarat-Bogor KM 46 Cibinong

National Land AgencyJl Kuningan Barat No. 1 Jakarta Selatan

ASIA GEOSPATIAL FORUM , Jakarta, 17-19 Oktober 2011

OUTLINE

1. Space weather2. Space Weather Effect on GNSS3. Space weather monitoring by using GNSS4. Methodology5. Status of GNSS Applications for Space Weather

Monitoring6. The Future Plan of Space weather monitoring

using GNSS

Earth weather and space weather

SPACE WEATHER

2. Space Weather Effect on GNSS

Ionospheric Delay (regular error) and Irreqularity (disturbance error)

STECf

Dion 2

3.40

,)(1

1

2

N

n

nDSTECN

Igps

ttn STECphSTECphDSTEC 1

3. Space weather monitoring by using GNSS

)1(3,40)1(3,40

1

)1(3,40

21

1

2,12,1212,1

21

ppN

n

BbfPf

N

fNSM,STEC

212,1 PPP 22112,1 LL

4. Methodology1. Code and phase data extracting from GPS RINEX

2. GPS code data combination

3. GPS phase data combination

4. TEC Computation

)1(3,40)1(3,40

1

)1(3,40

21

1

2,12,1212,1

21

ppN

n

BbfPf

N

fNSM,STEC

212,1 PPP

22112,1 LL

5. Status GNSS Applications for space weather monitoring in Indonesia

1. Near real time IGS (GPS) based TEC monitoring 2. IPGSN-based TEC computation

Near Real Time Ionospheric Monitoring Over Indonesia Using IGS

GPS data

Buldan, 2011, in progress

Latest development of IPGSN-Based TEC Observations

90 100 110 120 130 140 150-20

-15

-10

-5

0

5

10

15

20

Bdg Srby

Bkl

PdgPont

Mksr

Biak

Kup

Smr

Den

Blkp

Kndr

Bitung

Mer

TernSor

Maumere

Cibinong

Long

Lat

IPP from IPGSN, March 1, 2011, 01:00 UT

Buldan et.al., 2011

Diagram Block of TEC computation System

BAKOSURTANAL

Real Time IPGSN DataRaw GPS format

GPS data extracter and combiner (automatic)

bako2300P1P2.11c

TEC calculator and data server (manual)Bako2300.11t

(LAPTOP)

Data management(automatic)

bako2320.11obako232a.11o

LAN Internet

LAPAN

• TEC data

7 8 9 10 11 12 13 14-10

0

10

20

30

40

50

60

Hour (UT)

ST

EC

(T

EC

U)

STEC, BAKO, March 1, 2011, PRN 22

STEC code and phaseSTEC Code

7 8 9 10 11 12 13 14-0.25

-0.2

-0.15

-0.1

-0.05

0

0.05

0.1

0.15

0.2

Hour (UT)

DS

TE

Cp

h (

TE

CU

)

DSTEC Phase, BAKO, March 1, 2011, PRN 22

Application of GPS TEC: GPS Phase Scintillation Index: Igps

7 8 9 10 11 12 13 140

0.02

0.04

0.06

0.08

0.1

Hour (UT)

Igp

s

GPS Phase Scintillation Index, BAKO, March 1, 2011, PRN 22

,)(1

1

2

N

n

nDSTECN

Igps ttn STECphSTECphDSTEC 1

Igps phase scintillation index and FAI

Buldan et. al., 2011

Future Plans of Space Weather Monitoring using GNSS in Indonesi

• GPS stations network in Indonesia• Plans of Space Weather monitoring

90 100 110 120 130 140 150-20

-15

-10

-5

0

5

10

15

20GPS OBSERVATIONS NETWORKS IN INDONESIA

Longitude

Latit

ude

PTK GISTMMND GISTM

BDG GISTM, TEC, CORSGMU1ITSSITB1

GUAM

DARW

BAKO

COCO

PIMO

SAMP

LAE1

NTUS

XMIS

6 Institutions have established GPS observation nework

LAPAN (3 station) BPN ( CORS: 31) BAKOSURTANAL (IPGSN :

70) LIPI (SUGAR: 25 ) ITB (CORS: itb1) UGM (CORS: gmu1) ITS (CORS: itss)

GNSS observation network in Indonesia

132 GPS receiver 18 GPS reciever: real time

PLANS: DEVELOPMENT OF SPACE WEATHER MONITORING USING GNSS IN INDONESIA

Activity 2011 2012 2013 2014

LAPAN AND BAKOSURTANAL SPACE WEATHER MONITORING NETWORK

18 GPS receiverBIG

30 47 REAL

TIME

DATA

LAPAN and BPN SPACE WEATHER MONITORING NETWORK

33 GPS receiverBPN

47

NATIONAL SPACE WEATHER MONITORING NETWORK

100 (LAPAN)BAKOSURTANALBPNITB, UGM, ITS

Needs:

• Increase data storage capacity• Upgrade the data communication and

networking insfrastructure• Humans resources development: acquisition,

data processing and maintaining, networking and dissemination

• Enhance the synergy among research and education institutions

LAPAN-BIG-BPN-ITB-ITS-UGM

ConclusionsMitigation of Space Weather Effect in Indonesia for GNSS application is requiring real time and continous GNSS stations

Development of GNSS applications for space weather monitoring in Indonesia is ongoing research on space observation technology uisng GNSS

Status of GNSS applications for space weather monitoring using GNSS are including ionospheric TEC and scintillation estimation from IPGSN, ionospheric mapping using IGS.

Future plans of GNSS applications for space weather monitoring using GNSS are including the use of BPN CORS network and Univerities CORS network to provide the real time ionospheric conditions over Indoensia

The GNSS applications for space weather monitoring are requiring the synergy among research and education institutions, human resources development, and insfrastructure development.