hooking up a meta-network with voevent robert white stuart evans w. thomas vestrand james wren...
Post on 27-Mar-2015
216 Views
Preview:
TRANSCRIPT
Hooking up a meta-network with VOEvent
Robert White Stuart Evans W. Thomas Vestrand James Wren Przemyk Wozniak
Los Alamos National Laboratory Alasdair Allan
University of Exeter, eSTAR Project
The VOEvent Workshop II 2005R.R. White 11/2005
2nd VOEvent WorkshopTucson 2005
The VOEvent Workshop II 2005R.R. White 11/2005
TALONS Developments(Telescope Alert Operations Network
System)
Additions: VOEvent format transmissions eStar network Interface VOEvent client receiver New monitor interface
Original Mandate: To support the RAPTOR stereoscopic wide-field optical transient search.
System Highlights Server / Client based bi-directional network Supports unlimited clients and outside network connections Uses Distributed Sensor Network (DSN) architecture
Current TALONS Clients• RAPTOR A & B
– System separated by 38km baseline– Wide Field mosaic system, each 4x 85mm– Narrow field fovea, each 1x 400mm
• RAPTOR P– 4x 400mm mosaic
• RAPTOR S– 0.4m OTA (3 interchangeable detectors)
• Back illuminated 1k x 1k CCD• Photon counting imager• Grating spectrometer
• RAPTOR T (system testing)– 4x 0.4m co-aligned OTAs
• Different filters (B, V, R, I) on each camera
• RAPTOR 16 (under construction)– 16x 200mm mosaic
Possible additions (soon to come?)• Apache Point 1.0m telescope – NMSU ( VOEvent
software delivered)• PARITEL (IR 1.2m telescope ) - UC Berkley
(VOEvent software delivered)• HOU Educational 0.75m telescope - UC Berkley• Eudoxos - Greek National Observatory for Education
(VOEvent software delivered)
The VOEvent Workshop II 2005R.R. White 11/2005
The VOEvent Workshop II 2005R.R. White 11/2005
The Thinking Telescopes (T3) Project
Machine Learning
Evolving Database(SkyDOT & NVO)
Cerebro / TALONS
www.thinkingtelescopes.lanl.gov
The Heterogeneous Telescope Workshop 2005R.R. White 7/2005
Two words…
SPEEDSome of the most ground-breaking science could be lurking in the first few seconds!
What’s Most Important to Us (RAPTOR and T3 Project) in Event
Notification?
Efficiencyand
Action Items from VOEvent Workshop I
• Create VOEvents from RAPTOR alerts– RAPTOR internal alerts are being generated as
VOEvent and stored.– Bonus: GCN Alerts are now being translated to
VOEvent, re-transmitted, and stored.
• Integrate TALONS network with another network using VOEvent as the communication format– TALONS – eSTAR gateway developed and
operational.
The VOEvent Workshop II 2005R.R. White 11/2005
Could be broadcast to more
than one node
“phase0” request (RTML)
1.
TALONSCentral
TALONSClients
eSTARAgent
Broadcast to to all eSTAR nodes
Telescope System Configurations (RTML)
2.
TALONSCentral
TALONSClients
eSTARAgent
Score Observation (RTML)
3.
TALONSCentral
eSTARAgent
returned by all nodes
Best possible instruments determined
TALONSClients
eSTAR – TALONS Heterogeneous Telescope Network Communication Flow - Observations
The VOEvent Workshop II 2005R.R. White 11/2005
The VOEvent Workshop II 2005R.R. White 11/2005
Return Observation Score (RTML)
4.
TALONSCentral
eSTARAgent
eSTAR – TALONS Heterogeneous Telescope Network Communication Flow - Observations
(Cont.)
Request Observation (RTML)
5.
TALONSCentral
eSTARAgent
TALONSClients
TALONSClients
Observation Complete (RTML)
6.
TALONSCentral
eSTARAgent
TALONSClientsObservation
Report (VOEvent)
Database
General Broadcast
Observation Data
The VOEvent Workshop II 2005R.R. White 11/2005
Alert Issued (VOEvent)
1. eSTARAgent
TALONSCentral TALONS
Clients
Outside Networks(i.e. GCN)
Local Database (VOEvent)eSTAR Database
(VOEvent)
Acknowledge (VOEvent)
2. eSTARAgent
TALONSCentral
TALONSClients
Contains sender’s storage location for data and data
file name
NOTE: Works regardless of alert originator (e.g. If eSTAR issues the alert TALONS acknowledges with the database alert information.)
eSTAR – TALONS Heterogeneous Telescope Network Communication Flow - Alert
RSS Feed (VOEvent)
VOEvent Clients
Systems Still Being Developed
• Web interface (via Thinking Telescopes web site) for creating manual VOEvents
• SkyDOT database translation from / to VOEvent• Analysis / Decision tool for full integration of SkyDOT
and other databases.• Secure data transfer (other than direct connect)• Self spawning server (redundancy to system)• Additional versions to support OSX clients• Integrated aggregator
The VOEvent Workshop II 2005R.R. White 11/2005
Issues Still Pending
• Transmission security• Finalize the format• Efficiency vs. complexity• Product support• Sociology
The VOEvent Workshop II 2005R.R. White 11/2005
For More Information on These Projects see:
www.thinkingtelescopes.lanl.govwww.raptor.lanl.gov
top related