SCIENCE POLICY TOPICS - JSTUC EXPANDING THE FRONTIERS OF SPACE ASTRONOMY - STSCI JWST
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EXPANDING THE FRONTIERS OF SPACE AS TRONOMY
Science Policy Topics
Neill Reid, Associate Director for Science
JSTUC
8 May 2018Topics
• Science timeline overview
• Program updates
• JSTUC informational update
• ERS status
• Topics for medium- & longer-term planning
• Cycle 1 proposal process
• Science keywords
• Science categories & panels
• Cycle 2 GO scienceJWST Science Planning Timeline (3/26/2018)
Cycle 1 Call for Proposals timeline Commissioning
DD ERS
(L+6 mo.) observations
2017 2018 2019 2020 2021
Oct. 9-10 Apr. 6 (L+6) L+9
DD ERS TAC GO Cy1 Cycle 1 obs. GTO Cycle 2
deadline begin deadline
Nov., 15
Jun 17-29
DD ERS TAC
GO Cy1 TAC Cycle 1 Supplemental Call
results released
Parameters finalised in
Mid-July consultation with JSTUC
GO Cy1 TAC results
Nov. 30
Jan 31 Approx. (L+11)
GO Cy1 call
GTO and ERS Cy1 APT GO Cy2 call for prop
for prop.
files finalised
Dec. 15
GTO and ERS Cy1 APT
files publishedProgram revisions
JSTUC: News on changes to existing GTO/ERS programs and how those impact GOs?
Early Release Science programs
• ERS programs need to execute early in Cycle 1
• Programs have already been revised to taken account of the change in launch date from
10/2018 to spring 2019
• ERS leads will be given an opportunity to adjust targets once the new schedule is known
• Some programs may revert to the original targets
GTO programs
• As a matter of fairness, GTO programs should be given a chance to re-assess targets
• Some solar system GTO targets will be inaccessible under the new launch schedule
Both GTO and ERS programs need to be defined well in advance of the GO Call being re-
issued
• NASA policy 11 sets the schedule as “no later than 7 months prior to the call for Cycle 1
GO proposals”Guestimated timeline
JSTUC: Current thinking on date of Cycle 1 call given hypothetical May 2020 launch
• Assume JWST launch in May 2020
• TAC meets 6-7 months prior to launch (October-November)
• Proposal deadline ~2.5 months prior to TAC (July-August)
• Call re-opened ~3 months prior to deadline (April-May)
• Coincides with APT/ETC/documentation freeze
• No supplemental Call
• Change in launch date may impact observability of some GTO and ERS targets
• Proposals can be assessed once NASA announces the revised schedule
• NASA policy #11 requires GTO proposals to be submitted no later than 7 months prior to
the GO Call being issued
• Target revisions will need to be submitted by September-October 2019
• ERS proposals should be finalised by the same deadline
• STScI will update the associated web-based documentation
• GO proposers can check for duplications using the MAST tool (no spreadsheets)JWST Science Planning Timeline (tentative & subject to change)
Cycle 1 Call for Proposals timeline Commissioning DD ERS
observat
Spring 2020 launch (L+6 mo.) ions
2017 2018 2019 2020 2021
Oct. 9-10 (L+6)
DD ERS TAC summer
Cycle 1 obs.
GO Cy1
begin
Nov., 15 prop. due
DD ERS TAC
results released L+9
Spring Autumn GTO Cycle 2
GO Cy1 TAC deadline
GO Call re-
Nov. 30 Mar 27 opened
GO Cy1 call GO Cy1 Call Late summer
for prop. paused GTO and ERS Cy1
APT files finalised
Dec. 15
GTO and ERS Cy1 APT
files publishedERS Status
JSTUC: Discuss ERS pre-funding given the slip
Extended period prior to launch places additional stress on proposal teams
• Need to maintain momentum through to launch
Funding
• We have collected estimates of the likely level of FY19 funding from each team
• Deadline was May 5th
• We will work with the Project to meet those requests, as far as possible
• Budget submission schedule will be defined
Momentum
• We are working with the ERS teams to support AAS 232 and Vienna IAU
• We’ll coordinate plans for future meetings, including AAS in 2019
• We are establishing regular (~quarterly) ERS team telecons
• Enables direct community with STScI & cross-communication within the teamsCycle 1 Proposal Process - overheads
Cycle 1 re-boot allows us to re-consider several issues
JSTUC: Discuss how to deal with “psychological penalty” of huge overhead on short exposures
• Some observations with JWST will be scientifically vital, but dominated by overheads
• E.g. observations of bright targets, coronagraphy
• We want the TAC to select the most interesting & important science, not the most
efficient programs
• We will instruct the TAC to focus on the science, but JWST proposals currently list
“science time” and “charged time” on the front page
• That makes it easy to compute the “efficiency” for any proposal
• The TAC requires the total time to match against the panel allocation
• But it doesn’t need the science time adjust proposal format to eliminate
• We’ll still instruct the TAC to focus on the science
• And that we will work with proposers to maximise the efficienciesCycle 1 Proposal Process – keywords
• Science keywords
• Used to match proposals and reviewers
• Current set was developed in conjunction with GSFC JWST science team
• Based primarily on HST and Spitzer heritage
• Input from HST STUC
• Some feedback on survey that keywords could be better tuned to IR astronomy
• Request to JSTUC
• Please review keywords at https://jwst-
docs.stsci.edu/display/JSP/JWST+Cycle+1+Proposal+Science+Categories+and+Keywords and
provide advice on additions/updatesCycle 1 Proposal Process – science categories & panels
• Question to JSTUC -
Category Description
Cosmology Cosmology, dark matter, GRBs, cosmic infrared background, galaxy clusters,
gravitational lensing, high-z universe,deep field surveys, large-scale structure
Massive black holes and AGN, QSOs, feedback mechanisms
their hosts
Galaxies and the IGM Studies of galaxies as systems including nearby galaxies, interacting galaxies,
elliptical galaxies, starbursts, luminous IR galaxies (LIRGS/ULIRGS/HLIRGS), galaxy
evolution, dwarf galaxies, unresolved stellar populations
Dust, ISM and stellar Resolved stellar populations, gas and dust in the Galactic interstellar medium and in
populations nearby galaxies, H II regions, star clusters, star forming regions
Stellar physics Studies of individual stars including massive stars, YSOs & protostars, evolved stars,
compact objects, cool stars, brown dwarfs
Planets and planet formation Exoplanets, debris disks, protoplanetary disks
Solar system Trans-Neptunian objects, asteroids, comets, planets, moonsPlanning for Science in JWST Cycle 2
Cycle 2 will be in 2022, but the Call will be issued in mid-2021
• It’s not too early to start considering how we might structure the call
Cycle 1 time allocation – baseline plan
• 2750 hours GTO time +Summary
• Science timeline
• Cycle 1 GO proposal deadline likely to be in summer 2019 for a May 2020 JWST launch
• No supplemental Call
• GTO and ERS proposers will have a chance to revisit proposals with autumn 2018 deadline
• ERS update
• We will work with ERS teams and JWST Project to try to provide sustaining funding through
the launch delay
• We will establish regular communications with the teams
• Proposal process
• We will de-emphasise the science time component on proposals & emphasise the focus on
science impact to the TAC
• We ask the JSTUC for input on science keywords and science categories
• We suggest that the JSTUC start considering the program balance for Cycle 2 and future
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