CXC Managers Status Report For the period Oct 05 Mar 06 - PowerPoint PPT Presentation

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CXC Managers Status Report For the period Oct 05 Mar 06

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Patched Flight Software to raise EPHIN E1300 channel high-radiation threshold ... CIAO 3.3 Nov05 Science tools & library upgrades; new tools; cycle 8 proposal tools ... – PowerPoint PPT presentation

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Title: CXC Managers Status Report For the period Oct 05 Mar 06


1
CXC Managers Status ReportFor the period Oct 05
Mar 06
  • Chandra Users Committee Meeting
  • Roger Brissenden
  • 5 April 2006

2
Topics
  • Program Level Status
  • Program Management
  • Spacecraft
  • Mission Planning
  • Science Instruments and Calibration
  • OCC
  • Data Processing
  • CXCDS
  • CDO
  • Education and Outreach
  • Mission Metrics
  • Chandra Grant Awards

3
Program Level Status
  • Program Management
  • Budget NASA required a 5 reduction to the FY06
    CXC budget in February and steps are being taken
    to accommodate this mid-year. Plans are not
    final, but steps will include some reduction to
    GO funds (aim is to minimize this), freezing
    open/future-attrition positions and moving staff
    as needed to fill required functions, and
    modifying phasing of funds to subcontractors.
    Further reductions in FY07 would impact CXC
    functions.
  • Staffing The Flight team has undergone a series
    of staff changes beginning with the retirement of
    the FOT manager, Leon McKendrick and the
    promotion of Dan Shropshire to the position. New
    Ground Team and Facilities Team leads are also
    being appointed through internal hiring. We are
    confident in the new FOT and OCC team
    organization and staffing.
  • Facilities The CXC Data System group moved (Dec
    05) from offices in Harvard Square to new leased
    space at Cambridge Discovery Park, about 1.5
    miles northwest of 60 Garden Street, that also
    houses other SAO units. The move was accomplished
    smoothly, with no disruption to operations.

4
CXC Organization
5
Flight Operations Team Staff Changes
Christine Harbison (Operations Manager, Flight
Software) left the program Craig Mahon assumed
Acting Operations Manager duties in January
2006 Eric Page assumed Flight Software
responsibilities in January 2006 Rich Myers
assumed SMF management duties in January
2006 Brad Bissell completed transition from MP to
Eng Sabina Bucher transitioning to become MP
Manager Ken Gage transitioning to become
Propulsion / PCAD engineer
6
Program Level Status
  • Spacecraft
  • Continues to operate extremely well overall
  • Nominal passage through winter 2006 eclipses and
    lunar eclipse on 11/1/05
  • Patched Flight Software to raise EPHIN E1300
    channel high-radiation threshold
  • Patched On-Board Computer to eliminate SIM move
    to mid-point during SCS107, to reduce temperature
    spikes on translation motor
  • Completed final build and reviews of recompiled
    Flight Software preparing to enter test phase
  • ACA dark current calibrations 11/12/05, 3/5/06

7
Program Level Status
  • Spacecraft (cont) Anomalies
  • On 1/12/06, a command overlap condition was
    identified between the JAN1106A mission loads and
    the autonomous eclipse exit commanding (SCS 33)
    that resulted in the Sun Position Monitor being
    enabled outside the Fine Sun Sensors field of
    view (unexpected state). We disabled the monitor
    via the appropriate ground commands. Additional
    Mission Planning Guidelines and load review tool
    updates are in work to prevent future
    occurrences.
  • A brief amount of anomalous telemetry was seen
    (15 Dec) in the secondary engineering portion of
    the HRC telemetry stream. The anomalous data had
    no operational impact, and no corruption of the
    x-ray event data was observed. The event is
    under investigation.
  • Mission Planning
  • SCS107 ran once (21 Mar) due to high radiation
    event, requiring replan
  • 5 load interrupt TOOs
  • Date Target Days
  • 10/25/05 GRB051022 1
  • 12/22/05 GRB051221 1
  • 01/04/06 GRB051221 (followup) 8
  • 01/11/06 GRB060108 3
  • 03/29/06 SGR 190014 3

8
Program Level Status
  • EPHIN
  • Spacecraft temperatures have increased due to
    degradation of the metalized Mylar insulation
  • Keeping the EPHIN (Electron Proton Helium
    Instrument) particle detector cool caused
    substantial constraints on spacecraft attitudes,
    restricted observation durations and made mission
    planning very difficult.
  • Investigation showed that EPHIN can operate at up
    to 120F without damage. The Flight Director Board
    authorized increasing the allowed EPHIN
    temperature from 96F to 110F, and the trigger
    threshold of one of the electron detection
    channels (E1300) by a factor of two.
  • E1300 threshold increase will decrease false
    SCS107 triggers due to puffed-up radiation belts
  • Temperature increase will increase number of
    27-volt power supply dropouts, but this is
    considered not harmful, and is acceptable to the
    engineering team and the EPHIN principal
    investigator
  • These changes have resulted in more flexible
    mission planning

9
Program Level Status
  • Science Instruments
  • Instruments are operating extremely well
  • The HRC Engineering (proof of concept) unit
    will be integrated with the spacecraft simulator
    (the Avionics and Software Validation Test set)
    to allow testing new or modified HRC on-orbit
    procedures directly with the simulator.
  • OCC
  • The OCC ground system was successfully migrated
    from Silicon Graphics to Linux-based computers 29
    Nov. Operations continued seamlessly, with no
    disruption.
  • Telex/RTS was selected to replace the voice
    communications system delivery expected May 06.

10
Program Level Status
  • Data Processing
  • Automatic processing is current median data
    delivery time 31.1 hours from end of observation
    to delivery to user
  • Complete data reprocessing (Repro 3) began 15
    Feb incorporates most recent algorithms and
    calibrations 8 months of data (starting Jan 05)
    reprocessed to date
  • CXC Data System Major Releases
  • Version Date Main contents
  • DS 7.6.4 Nov05 Multi-obi VV fix obs completion
    policy
  • CIAO 3.3 Nov05 Science tools library upgrades
    new tools cycle 8 proposal tools
  • DS 7.6.5 Dec05 Cycle 8 proposal s/w charge time
    update
  • DS 7.6.6 Jan06 Implement new observ policy in
    archive
  • DS 7.6.7 Feb06 Repro 3 s/w telem aspect
    enhancements
  • Also 6 data system patches (Nov, Dec 2, Jan,
    Feb, Mar) s/w fixes updates

11
Program Level Status
  • Calibration Database (CalDB) Releases
  • 2 releases v. 3.2.0 (21 Nov), v. 3.2.1 (15 Dec)
    incorporate updates in 10 calibration product
    areas
  • GO and Fellows Programs
  • Cycle 8 Call for Proposals was issued 16 Dec
    proposal deadline was 15 March
  • 726 proposals were received process went
    smoothly
  • 9th Chandra Fellows cycle Record 88 applications
    received (accepted electronically, by 9 Nov)
    peer review 18 Jan, 5 Fellows selected (from
    Spain, U.S., Italy, Japan to Rutgers, Inst. Adv.
    Study, CfA, Michigan, Penn State)
  • Education and Public Outreach
  • 13 press activities
  • 1 press conference release at January AAS, with
    6 images
  • 8 press releases, 5 image releases
  • 32 major print articles, incl. 2 in USA Today
    269 major web articles 2 items on broadcast
    news (NRP, Voice of America)

12
Mission MetricsMUPS Fuel Usage
13
Mission MetricsThruster Warm Starts
14
Mission Metrics Scheduled Observing Efficiency
15
Mission MetricsObserving Efficiency
16
Data Delivery Effectiveness
17
Grant Award Effectiveness
18
Grant Award Efficiency
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