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Hubble Space Telescope Program

Goddard Space Flight Center

HST/GSFC Project Report
Presentation to:

STUC

Mansoor Ahmed Associate Director, Astrophysics Projects Division Jennifer Wiseman HST Senior Project Scientist Kenneth G. Carpenter HST Operations Project Scientist Patrick Crouse HST Operations Project Manager James Jeletic HST Operations Deputy Project Manager

Kevin Hartnett HST Science Operations Manager
12 April 2012
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Hubble Space Telescope Program

Goddard Space Flight Center

Topics · Science Highlights, AAS mtg and beyond · Mission Operations

- Spacecraft Performance
- Automated Operations - Sustaining Engineering Activities · Upcoming Science Center Review · Senior Review Results

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Hubble Space Telescope Program

Goddard Space Flight Center

HST at the 2012 January American Astronomical Society Meeting, Austin TX
Hubble Science was a very strong presence at the meeting in many talks, posters, and exhibits (and an independent film!) Five press conferences: Protocluster of Galaxies at z=8 (Trenti) "HUBBLE PINPOINTS FARTHEST PROTOCLUSTER OF GALAXIES EVER SEEN Andromeda blue stars (Dalcanton) "RARE ULTRA-BLUE STARS FOUND IN NEIGHBORING GALAXY'S HUB" Andromeda double nucleus (Lauer) "HUBBLE ZOOMS IN ON DOUBLE NUCLEUS IN ANDROMEDA GALAXY" SN Primo (Rodney/Riess) "NASA'S HUBBLE BREAKS NEW GROUND WITH DISCOVERY OF DISTANT SUPERNOVA" SNR 0509 Progenitor (Schaefer) "HUBBLE SOLVES MYSTERY ON SOURCE OF SUPERNOVA IN NEARBY GALAXY"

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Hubble Space Telescope Program

Goddard Space Flight Center

HST Views Farthest Protocluster Ever Seen

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Hubble Space Telescope Program

Goddard Space Flight Center

Supernova from merging white dwarfs!

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Hubble Space Telescope Program

Steamy Waterworld?
Goddard Space Flight Center

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Hubble Space Telescope Program

Goddard Space Flight Center

Cluster Collision Mystery: Dark Matter Not Tied to Galaxies?

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Hubble Space Telescope Program

Goddard Space Flight Center

Mission Operations
Spacecraft Performance
All spacecraft subsystems performing well Gyros 4,5,6 currently in use; nominal performance

Automated Operations
Working as designed Flight Operations Team reduced from 35 FTEs to 10; single shift M-F Science Data Capture has been 99.9%+ Solid State Recorder (SSR) automated re-dumps
· Implemented in mid-December with some known "special case" limitations · 100% data capture February · 105 packets were lost on March 23
rd

Period of high volume science data collection (sustained > 60% SSR capacity)
Significant number of re-dump requests due to RF interference New science collection treated with higher priority; re-dump requests not serviced PI responded that the science investigation was not adversely impacted Evaluating lessons learned

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Hubble Space Telescope Program

Mission Operations
Goddard Space Flight Center

Sustaining Engineering Activities
Attitude Observer Anomaly (AOA) mitigation
· Attitude Observer Initialization (AOI) patch Uses rates derived from Fine Guidance Sensors during target acquisition sequence to accelerate controller convergence and maintain lock Uplinked February 2, 2012 · Historical Observer Complements AOI patch Algorithm Description Document and Systems Requirements Review completed Populates historical time bins along orbit period with gyro bias values to aid subsequent target acquisitions/re-acquisitions Expect to have available for operations in November 2012

Reduced Gyro Reduced Wheel (RGRW) Safemode
· Provides safe pointing control with only two operational reaction wheels · Flight Readiness Review on April 10, 2012

Life Extension Initiatives
· Reviewing previously identified areas of work · Goal is to affirm/update relative priority with resources in mind

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Hubble Space Telescope Program

Goddard Space Flight Center

Upcoming Science Center Review
April 25th at STScI Will Address two issues
1. 2. What activities do each science center feel they are doing well that they want to share with the other centers. Setting aside budget issues, what does each science center feel are constraints in current policies that impede their ability to do better?

Will produce two products:
1. 2. A document that summarizes best practices in constituting and running a science operations center for a NASA mission. NASA HQ intends to use this as a reference in defining the characteristics of SOCs for future missions. A document providing constructive feedback to NASA HQ on potential improvements in policy issues.

The latter document should be completed at, or very shortly after, the workshop. The former document has the potential to have long-term impact and therefore requires more time and thought in production, but a consensus summary should be completed within one month of the workshop.

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Hubble Space Telescope Program

Goddard Space Flight Center

Results of Senior Review Project Perspective
Written Proposal submitted January 2012 Oral Presentation made February 2012 Senior Review Committee Final Report Delivered April 2, 2012 Major Comments and Recommendations
Recognized HST provides excellent, cutting edge science; earned highest score in "discovery space", and "critical capability" SRC recommended an extension through 2016 with review in 2014 SRC did not recommend any augmentation requests SRC recommended that HST vigorously pursue ways to accelerate cost reduction without compromising mission safety even if some science is not enabled

Planned HSTP Actions
PPBE-14 (NASA internal budget process) now in progress

Building budget to existing guidelines (no augmentation, but no decreases either, from Senior Review)
Plan to "fully fund" GO/AR grants through FY14; FY15 and beyond will require identification of cost reductions in other segments Work diligently to balance performance, risk, and cost goals

Discussion (All)
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