CTIO/KPNO and Time Domain Follow-up€¦ · End of presentation. DESI hardware 2020 community planning 17 Images:CAID Image credit: DESI collaboration. NEID construction 2020 community

CTIO/KPNO and Time Domain Follow-up

2020 community planning 1

L. Allen w/ R. Blum, S. Heathcote, J. Elias, C. Briceño

CTIO/KPNO and time domain follow-up


L. Allen w/ R. Blum, S. Heathcote, J. Elias

Although 40+ years old Blanco and Mayall have proven to be versatile platforms adaptable to host new cutting edge instruments

Coming 2019 à DESI @ KPNO Mayall 4-m


Dark Energy Spectroscopic Instrument (DESI) 5000-fiber spectrometer : 35 million redshifts

5000 fiber positioner robots @ prime focusNew prime focus corrector (creating an 8 sq deg FOV)New top ring and cage, barrel and hexapod assemblyTen 3-arm spectrographs (cf., BOSS spectrographs)

MzLS (z band targeting survey) completed• DESI footprint at DEC > +30 deg• Depth: z=23.0 5-sigma point source• Coordinated footprint with Bok g/r survey• ~400 nights total with Mayall• MzLS data public immediately


DESI pre-imaging surveys

zrg

Mayall/DESI


Installation of fixed end of e-chain on lower guide of polar axis cable wrap

• Mayall now in shutdown• Preparing tel. for DESI h/w install Jun 2018• Corrector install end Aug 2018• Focal plane assembly install end Mar 2019• Start of commissioning Apr/May 2019• Commissioning complete Sep 2019

DESI Installation

Stripping existing top ring

Coming 2019 à NEID @ KPNO WIYN 3.5-m

2020 community planning

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Extreme Precision Doppler SpectrometerMotivation: TESS, K2, etc.Mission: determine masses of Earth-like planets

Requirement: < 50 cm/s Goal: ~ 10 cm/s

Instrument for the exoplanet communityProposals through NOAO TAC

Operations start 2019 Q2

Derived from Tohono O’odham word “to see”

PI: S. Mahadevan (PSU)

CTIO/BlancoS. Heathcote

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Picture credit Rongpu Zhou

LSST


Instrumentation, Current & Future

Dark Energy Camera• 520 Mpixel camera

– 64 2kx4k red-sensitive LBNL CCDs• 2.2 degree FOV @ 0.263”/pix• Space for 8 filters

– Available: Broad – ugrizY + VR Narrow – (~10nm): N964, Hα

– Changing out filters is a major day time task– Filters cost ~US$100k each– Filters narrower than ~10nm are not feasible

• Finishing DECaLS and DES in 2018B• Key decision: DECam post DES

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DECam @ Blanco


Instrumentation Current & Future

• Optical long-slit & multi-slit R ≤ 3000 spectroscopy, plus imaging

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Blanco f/8 Instruments

COSMOS

ARCoIRIS• Moderate resolution near IR spectrograph• 0.9 < λ < 2.4 μm simultaneously in 5.5

cross-dispersed orders @ R~3000


NEWFIRM• 1.0 – 2.4 μm imager• 28 x 28 arcmin FOV @ 0.4”/pixel• Requires $$ so need a strong enough science

driver– Not a 2 degree FOV IR image on an 8m telescope!– But the only moderate FOV IR imager in the south

To SOAR

From Mayall ?

SOAR

SOAR Instruments I• Five facility instruments currently available:

– Goodman High-Throughput Spectrograph (optical long-slit/MOS/imaging) – 70% of science time!

– SOI (optical imager)– Spartan (NIR imager)– SOAR Adaptive Module (SAM) + optical imager (SAMI)– SIFS (IFU spectrograph) (campaign mode only for 2018)

• “Visitor” instruments with community access– Tokovinin speckle camera (HR-Cam)

– SAM + Fabry-Perot (campaign mode)


SOAR Instruments II• Coming soon (commissioning this year!)

– STELES (R~30,000 echelle, 2-arm)– TSpec4.1 (ex-ARCOIRIS) (R~3500 NIR XD spectrograph)

• Support for:– Remote observing (~90% of users)– Multiple instruments available at any time– Targets of Opportunity– (NEW) service observing for small projects


A System for LSST Follow UP


LSST Follow Up System

• Deliver an end to end Follow up System for Community use

• Support LSST Science• Support follow up science before LSST (e.g.

ZTF public stream)• Think of this as a project to deliver a capability

for the OIR system


The Goal

Follow Up System

• Broadly, in good shape with telescopes and instruments to start: SOAR, Gemini, Blanco, LCO. All noted in Kavli report

• Gemini has new broad wavelength coverage spectrograph (OCTOCAM) coming. GMOS (N+S)/F2/GNIRS in mean time.

• SOAR has Goodman and (soon) TS4 and STELES. • Blanco has DECam for non-LSST cadence, other filters• NOAO developing ANTARES to broker LSST event stream (goal

is to broker ZTF public stream, Spring 2018)• Need development at interface of ANTARES and science based

target and observation management (TOM) and interface between target management and network of resources (telescopes+instruments and a dynamic scheduler).

• Need further (spectroscopic) pipeline/tool development


What is in Hand and What Needs Doing


End of presentation

DESI hardware


Images:CAID

Image credit: DESI collaboration

NEID construction


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Other Telescopes on Tololo

19

PROMPTLCOGT

KASI1.3-m

T80


SMARTS 1.5m

SMARTS 0.9m SMARTS 1.0m

Michigan Schmidt

EVRYSCOPE

ASAS-SNSources & Sinks For Time Domain Data

Notes on 2.1m

2.1m: Robo started yr 3 Nov 2017w/start yr 4 Nov 2018w/start yr 5 Nov 2019w/finish end October 2020

Expect RfP January 2020

Telescope & Instrument Layout


LSST Follow Up System

• Andy Adamson (Gemini)

• John Blakeslee (Gemini)

• Bob Blum (NOAO)• Adam Bolton (NOAO)• Todd Boroson (LCO)• Cesar Briceño

(NOAO/SOAR)• Mark Bowman (LCO)• Jay Elias (SOAR)


The Team

• Steve Heathcote (NOAO)

• Bryan Miller (Gemini)• Steve Ridgway

(NOAO)• Eric Saunders (LCO)• Rachel Street (LCO)• Joanna Thomas-

Osip (Gemini)• Nikolaus Volgenau

(LCO)

Follow Up System

• Favor a plan (and project) that starts with– limited observing nodes– limited observing modes – delivers capability in a phased way in next ~ two years– is modular and extensible to new non-Federal partners– provides full capability by LSST start of survey 2023

• In parallel, NOAO is working to deploy ANTARES in the near term to support other public surveys/alert streams like ZTF. Expect to broker ZTF public stream spring 2018


Development Path

Follow Up System

• Three blocks– 1) Broker (ANTARES)– 2) Target and Observation Management (TOM)– 3) Network (includes the magic of the scheduler and all

control agents at the telescope level)• For LCO network is robotic, redundant, homogenous

nodes• AURA will add unique, non robotic, but automated

nodes


Najita-Willman Chapter 9

Follow Up System


Development Path

Image credit Rachel Street, LCO

Follow Up Project I

• Phased deployment: AURA/LCO first. Phases overlap• Phase 1

– Connect LCO scheduler to SOAR – Key goal: operate SOAR with dynamic schedule for one night– In parallel ANTARES running on real event streams – SOAR automation development starts and continues here– SOAR data reduction, archive ingest, archive user access– Engage with Gemini for requirements in their new OCS.

• Complete by end FY18


Phased Implementation

Follow Up Project II

• Phase 2 • Minimal requirements for TOM functionality for phase 2.

– Submit user described observations to LCO and SOAR– TOM can access pipeline data from web service– ANTARES in operation (with public stream from ZTF; a minimum

demonstration of ZTF->ANTARES will be in hand at this point)– Open access to users (before LSST) with minimum protoype capability– TOM can interact with both LCO and SOAR observations– Scheduler drives automated observations on SOAR. – Minimal end-to-end system V1.0 (ZTF-ANTARES-TOM-LCO/SOAR) by end

FY19 – Add Gemini (proof of concept activity like SOAR in phase 1)


Proposed Phased Implementation

Follow Up Project II

• Phase 2b– Scheduler drives sequence of “time-domain only”

observations on Gemini• Phase 2c (“goal”)

– Scheduler incorporates Gemini static queue into Gemini observing schedule

– Reduced Gemini data available to users– Open access to users (before LSST)



Follow Up Project III

• Phase 3– All AURA and LCO facilities integrated– Hooks in place to accept other facilities– End to end system operating and supporting users for ZTF– Real-time data reduction for quality assessment, basic

characterization• Phase 4

– Support community science with LSST commissioning and operation



Follow Up Project III

• Working with Gemini, SOAR, LCO on “preliminary design”• Organize and develop the scope of work for phase 1+2

(2018), assign work packages for development • Resource estimates• Allocate supplemental resources to fund project

– Integrated with aspects of base programs as appropriate– leverage expertise of all partners

• LCO leading community based TOM development• SOAR working on automation, data pipelines, interfaces• Gemini developing new OCS


what’s happening now

Follow Up Project

• Instrument upgrades in longer term• SOAR and Blanco need “Q” observing support (possibly

could be handled by OA’s if modes are restricted)• Common libraries for spectroscopic reduction• Socializing community to need to redirect telescope

resources to dedicated dynamically scheduled modes


Issues, opportunities

Documents

CTIO/KPNO and Time Domain Follow-up€¦ · End of presentation. DESI hardware 2020 community planning 17 Images:CAID Image credit: DESI collaboration. NEID construction 2020 community