technische universität münchen alexander neidhardt forschungseinrichtung satellitengeodäsie 1 new...

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie1

New observation strategies with e-control

Alexander Neidhardt (FESG)neidhardt@fs.wettzell.de

Martin Ettl (FESG), Helge Rottmann (MPIfR), Christian Plötz (BKG),Matthias Mühlbauer (BKG), Hayo Hase (BKG), Walter Alef (MPIfR),

Sergio Sobarzo (Udec), Cristian Herrera (Udec),Ed Himwich (NASA/GSFC/NVI)

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie2

An almost given situation for the VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

TIGO Concepción/Chile

GARS O’Higgins/Antarctica

RT Wettzell/Germany

TTW Wettzell/Germany

Remote Control on Site

Comm

unicat

ion

Tele-working

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie3

Future visions with (globally) distributed systems

GGOS SKA

See: http://www.smh.com.au/news/national/astronomers-bid-for-a-quiet-space-in-the-country/2006/09/28/1159337280513.html, Download 2011-03-23 See: http://hea-www.harvard.edu/~psr_snr/research.html, Download 2011-03-23See: http://www.amazon.de/Global-Geodetic-Observing-System-Requirements/dp/3642026869/ref=sr_1_1?ie=UTF8&qid=1300913444&sr=8-1, Download 2011-03-23

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie4

And new ideas are on the way …

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie5

And new ideas are on the way …

RTW TTW1 TTW2 OHIGGINS

TIGO SOSW WLRS Datenzentren

Similar to: Hase, Hayo; et. al.: Twin Telescope Wettzell (TTW) – a VLBI2010 Radio Telescope Project. IVS General Meeting 2008

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie6

New control strategies

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie7

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

Local

- Standard operations- Local operator

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie8

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

Local Remote

- Check system states from everywhere at the observatory- Tele-working- Remote assistance and diagnostics- Control very remote, inaccessible telescopes

- Standard operations- Local operator

Inte

rne

t

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie9

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

SharedLocal Remote

Internet

- Check system states from everywhere at the observatory- Tele-working- Remote assistance and diagnostics- Control very remote, inaccessible telescopes

- Standard operations- Local operator

- Save, passive data live monitoring- Dedicated control access by responsible person- Shared access from different observatories- Shared night shifts

Inte

rne

t

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie10

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

SharedLocal Remote Unattended

Internet

- Check system states from everywhere at the observatory- Tele-working- Remote assistance and diagnostics- Control very remote, inaccessible telescopes

- Standard operations- Local operator

- Save, passive data live monitoring- Dedicated control access by responsible person- Shared access from different observatories- Shared night shifts

- Observations run autonomous, (semi-) automated and unattended

Inte

rne

t

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie11

A possible basis for such strategies:e-control and SysMon

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie12

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

SharedLocal Remote Unattended

Internet

- Check system states from everywhere at the observatory- Tele-working- Remote assistance and diagnostics- Control very remote, inaccessible telescopes

- Standard operations- Local operator

- Save, passive data live monitoring- Dedicated control access by responsible person- Shared access from different observatories- Shared night shifts

- Observations run autonomous, (semi-) automated and unattended

eControl*

* per system with individual restrictions andonly with reliable, well educated personnel staff on site

Inte

rne

t

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie13

New observation strategies for VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

SharedLocal Remote Unattended

Internet

- Check system states from everywhere at the observatory- Tele-working- Remote assistance and diagnostics- Control very remote, inaccessible telescopes

- Standard operations- Local operator

- Save, passive data live monitoring- Dedicated control access by responsible person- Shared access from different observatories- Shared night shifts

- Observations run autonomous, (semi-) automated and unattended

eControl*

* per system with individual restrictions andonly with reliable, well educated personnel staff on site

SysMon

Inte

rne

t

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie14

The idea: remote attendance and control of VLBI telescopes Wettzell, O’Higgins/Antarctica and TIGO/Concepción

FS Monitor Client GUI

Network

FS Monitor Client Communication

FS Monitor Server CommunicationFS Monitor Server Functionality

FS MonitorD

evice …

Device …

Device …

Server functionality

Communication

Graphical User Interface (GUI)Client

FS

e-co

ntr

ol

Interfacedefinition

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie15

The client – graphical, textual or browser based

Logbook

Chat

Remote program startup

SSH

Graphic andClassic main

interface

Completeremote access

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie16

System Monitoring: SysMon

Local safety for people and systems in combination with reliability in operations

Data for science and analysis

Data forsystem operations

Data fordiagnosis

Meteo, WVR, Clock offsets, …=> low sampling rates=> as scheduled

Power supply, wind uploads, emergency stops, rack temp., …=> medium sampling rates=> permanently

Servo currents, contouring errors, … => high sampling rates=> on demand

See also:Monitoring and Control Interface

Collaboration Group

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie17

Optimization of workflowsover system borders

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie18

The workflows on a technical point of view

VLBI

Schedule

Session

Storage

e-control/VLBI

System Monitoring

e-VLBI

e-Transfer

Shipment

Quality Feedback

e-Transfer (of scans)

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie19

The workflows on a technical point of view

e.g. SLR

Predictions

Ranging

Storage/Screening

e-control/SLR*

System Monitoring

EUROLAS status

FTP-Transfer

Quality Feedback

* adapted from VLBI

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie20

Technical synergies in …

- Models- Software- Data- Observing Times- Manpower- …

Picture: http://www.mpia-hd.mpg.de/Public/menu_q2.php?Aktuelles/Astronomie_SoVo/2007/index_2007.html, Download 2011-03-23Picture: http://www.klimazeitreise.de/Bilder/Titel.gif, Download 2011-03-23

GGOSscience

... are the fundament for technical realizations of …

AstronomicSKA science

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie21

But it wont avoid this …

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie22

The Radio Telescope Wettzell (RTW): impressions of a maintenance

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie23

The Radio Telescope Wettzell (RTW): impressions of a maintenance

Technische Universität München

Alexander Neidhardt Forschungseinrichtung Satellitengeodäsie24

Thank you!

View from „my“ new „command room“ ...

View from „my“ new „sky-deck“ ...