Hooking up a meta-network with VOEvent Robert White Stuart Evans W. Thomas Vestrand James Wren Przemyk Wozniak Los Alamos National Laboratory Alasdair.

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Presentation 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 2005 R.R. White 11/ nd VOEvent Workshop Tucson 2005

The VOEvent Workshop II 2005 R.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 2005 R.R. White 11/2005

The VOEvent Workshop II 2005 R.R. White 11/2005 The Thinking Telescopes (T 3 ) Project Machine Learning Evolving Database (SkyDOT & NVO) Cerebro / TALONS

The Heterogeneous Telescope Workshop 2005 R.R. White 7/2005 Two words… SPEED Some of the most ground-breaking science could be lurking in the first few seconds! Whats Most Important to Us (RAPTOR and T 3 Project) in Event Notification? Efficiency and

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 2005 R.R. White 11/2005

Could be broadcast to more than one node phase0 request (RTML) 1. TALONS Central TALONS Clients eSTAR Agent Broadcast to to all eSTAR nodes Telescope System Configurations (RTML) 2. TALONS Central TALONS Clients eSTAR Agent Score Observation (RTML) 3. TALONS Central eSTAR Agent returned by all nodes Best possible instruments determined TALONS Clients eSTAR – TALONS Heterogeneous Telescope Network Communication Flow - Observations The VOEvent Workshop II 2005 R.R. White 11/2005

The VOEvent Workshop II 2005 R.R. White 11/2005 Return Observation Score (RTML) 4. TALONS Central eSTAR Agent eSTAR – TALONS Heterogeneous Telescope Network Communication Flow - Observations (Cont.) Request Observation (RTML) 5. TALONS Central eSTAR Agent TALONS Clients TALONS Clients Observation Complete (RTML) 6. TALONS Central eSTAR Agent TALONS Clients Observation Report (VOEvent) Database General Broadcast Observation Data

The VOEvent Workshop II 2005 R.R. White 11/2005 Alert Issued (VOEvent) 1. eSTAR Agent TALONS Central TALONS Clients Outside Networks (i.e. GCN) Local Database (VOEvent) eSTAR Database (VOEvent) Acknowledge (VOEvent) 2. eSTAR Agent TALONS Central TALONS Clients Contains senders 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 2005 R.R. White 11/2005

Issues Still Pending Transmission security Finalize the format Efficiency vs. complexity Product support Sociology The VOEvent Workshop II 2005 R.R. White 11/2005 For More Information on These Projects see: