Blanco TCS Upgrade PDR Introduction Tim Abbott

This review This Introduction –Panel, Motivation, Goals & Specifications, Staff Encoders & servos – Michael Warner Hardware – Eduardo Mondaca Software – German Schumacher

PDR Panel Bob Marshall (NOAO, Tucson) Brooke Gregory (CTIO) Darren Depoy (OSU) Charge: Is the project as presented capable of achieving its goals with the resources provided and in the time frame available? Please provide written comments and recommendations, separately or as a group.

Project Motivation Keep Blanco operating as a state-of-the art facility –DECam, imposes some specifications, DES and the community. –NEWFIRM, another potentially very efficient observing facility –Existing instruments Retire & replace obsolete components –The existing system incorporates many obsolete and obsolescent components and technology. –Some components are home built with off-the-shelf options now available. –The power amplifiers are originals. –The mode-switching control model significantly constrains performance and was driven by the limited technology available at the time. Modernize software –Modern servo technology, both and sense and drive ends, has advanced significantly since the last upgrade (20 years ago!). –Can improve delivered image quality

Project Motivation Modernize software –Interfaces are dated –Capabilities are limited by today’s standards –Much useful telemetry is dropped on the floor Modularize –Existing system is highly centralized –Control and servo functions are blended Improve maintainability –Maintenance and modification get harder each year LSST prototyping –An opportunity to capitalize on SOAR experience and develop essential experience for LSST –Consolidated TCS support for 3 major telescopes.

Goals Maximize telescope efficiency for DECam/DES/NEWFIRM operations Replace obsolete & obsolescent components Replace wire-wrap & bread-boarded components with off-the-shelf and PCB components Use technology with an estimated >5 year market life

Goals Decouple mount, dome, rotator/guider from TCS Use SOAR/LSST model & components –Set point / Status model –Labview, Ethernet, Linux, new PMAC, Wallace kernel, comms middleware (DDS) –(In the longer term, plan to retrofit SOAR with Blanco innovations.) –(In the even longer term, plan to retrofit SOAR and Blanco with LSST innovations.) Introduce independent local and/or remote intelligence where appropriate

Goals Use new encoders –higher resolution, greater reliability, precision Integrate all existing instruments –Mosaic II, SISPI, Hydra, RC Spec, (NEWFIRM) Record and make available all telemetry from telescope to weather The upgrade is to be performed with existing TCS in place

Specifications Slew requirement: 2 degrees in 17 sec –To match DECam readout time Slew, project goal: 3 degrees in 20 seconds, track-to-track Tracking: <0.5” drift in 60 sec everywhere within the DES area Jitter: 100 mas r.m.s. Guide error signal delivery rate: 1 Hz Operational deadline: Sept 2010.

Replace: TCS –Kernel –Communications –Dome & utility control GUI Mount Control Telescope drive power amplifiers Encoders (SMCs later) Leave: Telescope motors Guiders Active optics Rotator f/8 control Instruments (SMCs, for the time being)

Blanco 4M Upgrade Diagram Operator GUI Mount Control TCS App Kernel Dome/ Utility 4MAPIMANROT4MF8SECCFADC DECAMISPIHYDRAMOSAIC Guider Interface Lamps Interface Dome Interface Ethernet RS-485 Mount Interface To Dome PLC Dome Encoders Comparison Lamps To Guider Motors Guider Encoders To Ra/Dec Motors HandPaddle Interlocks Encoders UDP, TCP/IP Ethernet/ Serial Interfaces Provided By CTIO Instruments Adapter Instruments Motor Controllers (SMC) Facility Database Weather, MASS DIMM, Sky Cam. Time IRIG-B Remote Ops IMAN PC-Guider NEWFIRM

Project Staff Tim Abbott (Project manager/scientist, DECam deputy project manager) German Schumacher (Software manager) Ricardo Schmidt (Electronics group manager) Eduardo Mondaca (Electronics engineer, interfaces, hardware, servos) Michael Warner (Servos, hardware) Manuel Martinez (Connectivity, motor controllers) Rolo Cantarutti (Software) Omar Estay (Software) Francisco Delgado (Software) Andres Montane & group (Mechanics, fab) CTIO DSS –Gale Brehmer (mgr), Enrique Schmidt, David Rojas, Javier Rojas, Humberto Orrego.

Software Timeline Jul-Sep 07Oct-Dec 07Jan-Mar 08Apr-Jun 08Jul-Sep 08Oct-Dec 08Jan-Mar 09Apr-Jun 09Jul-Sep 09Oct-Dec 09Jan-Mar 10 Servo Control Mount Software Serial Software TCS Application SMC Control Dome/ Utility Guider Instruments Interfaces Operator GUI Control Design Purchases Commis. GS 50% MW 50%MW 70% MW 50% OE 75% MM 50% RC 10%RC 70% FD 50% Facility Database FD 70% FD: Francisco Delgado GS: Germán Schumacher MM: Manuel Martínez MW: Michael Warner OE: Omar Estay RC: Rolando Cantarutti

Electronics Timeline Jul-Sep 07Oct-Dec 07Jan-Mar 08Apr-Jun 08Jul-Sep 08Oct-Dec 08Jan-Mar 09Apr-Jun 09Jul-Sep 09Oct-Dec 09Jan-Mar 10 SMC Tests TCS Application Tests Support Dome/Utility Interface D&I Guider Tests Instruments Interfaces D&I Conceptual Design Mount Interfaces and Power Drivers Purchases Commis. EM 60% ET 30% ED 30% DOME Tests Mount Tuning Encoder Tests Guider Interface D&I Instruments Tests D&I = Design and Implementation

Capital costs