Recent Accomplishments Webb/NASA

Date Annotation Key
BLACK	On Time as planned.
GREEN	Ahead of Planned.
RED	Later than Planned.
TAN ITALICS	Replanned Milestones ( Related article on nasa.gov )

Due Date	Item Accomplished	Completion Date
April 2021	No Planned Milestones
March 2021	Complete Cycle 1 General Observer Proposal Reviews	Completed 3/30/21
	Sunshield Fold Complete	4/6/21
	Launch Readiness Exercise #2	Completed 3/8/21
February 2021	Complete Comprehensive System Test #5	Completed 2/13/21
January 2021	Complete Post Environmental Testing Sunshield Deployments	Completed 12/16/20

Due Date	Item Accomplished	Completion Date
December 2020	Complete Post Environmental Testing Spacecraft Bus Deployments	Completed 11/12/20
November 2020	No Planned Milestones
October 2020	Complete Observatory Environmental Testing	10/2/20
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020	Deliver Science and Operations Center release 2.1	04/30/20
March 2020	Replacement CTP & TWTA installed into Spacecraft	02/24/20
March 2020	Conduct fourth early commissioning exercise	02/12/20
February 2020	Flight coupled loads analysis #2 delivered	02/28/2020
February 2020	Command/Telemetry Processor (CTP) replacement delivered	01/13/2020
January 2020	Spacecraft Element level Sunshield post-environment folding complete	01/22/2020

Due Date	Item Accomplished	Completion Date
December 2019	Replacement tunable wave traveling amplifiers (TWTAs) delivered	11/22/19
November 2019	Data Management Subsystem build 7.4 delivered	11/25/19
November 2019	Flight Software build 3.4 delivered	08/30/19
October 2019	Spacecraft Element level post-environment deployments complete	10/9/19
September 2019	Install Science Payload onto Spacecraft Element	8/23/19
	Deliver the flight version of launch vehicle coupled loads analysis #2 and detailed assessment	Replanned to follow science payload installation (FY 20)
	Spacecraft Element integration complete	6/29/19
	Conduct contingency planning rehearsal #3 at the MOC	9/27/19
August 2019	Complete Spacecraft Element post-launch environments and thermal vacuum testing folding	Replanned to follow science payload installation (FY 20)
	Observatory System Integration Review (Part 1)	7/25/19
	Observatory System Integration Review (Part 2)	10/19
July 2019	Received updated Cycle 1 proposals from the Guaranteed Time Observers.	6/25/19
July 2019	Conduct Science Operations rehearsal #5 at the MOC.	7/12/19
June 2019	Complete Spacecraft Element post-launch environmental testing deployment.	Replanned to follow science payload installation.
June 2019	Complete the secondary mirror structure deployment driven by the Spacecraft Element.	7/13/19
May 2019	No Milestones Planned for May.
April 2019	Open thermal vacuum chamber door following testing	5/19/19 (Feature Story)
April 2019	Conduct Wavefront Sensing rehearsal #3 at the MOC	04/12/19
March 2019	Begin Spacecraft Element thermal vacuum test	4/7/19
March 2019	Deliver the flight version of launch vehicle coupled loads analysis #2 Observatory Model	5/7/2019
February 2019	Deliver final results for SCE environmental testing	4/5/2019
February 2019	Conduct Early Commissioning Exercise #2 at the MOC	03/06/19 (Government shutdown delay)
January 2019	Conduct a SCE Comprehensive System Test in preparation for thermal vacuum testing	09/26/18

Due Date	Item Accomplished	Completion Date
December 2018	Conduct Science Operations rehearsal #4 at the MOC	12/21/18
	Begin Spacecraft Element vibration testing	11/15/18
	Complete the validation of science payload software	10/27/18
November 2018	Complete Spacecraft Element Acoustic Test	10/28/18
November 2018	Deliver Observatory Science and Operations software build	10/19/18
October 2018	Conduct Wavefront Sensing rehearsal #2 at the Missions Operations Center (MOC)	10/6/18
	Stow the sunshield into launch position following repairs of the membrane covers	9/28/18
	Spacecraft Element (SCE) ready for resumption of environmental testing following MCA repairs	10/19/18
September 2018	Complete integration of the Telescope onto the Spacecraft Element	Replanned to 09/2019
August 2018	Complete Telescope delivery to Northrop Grumman	Replanned to 08/2019
	Conduct Integrated Team Exercise #1	Alternate milestone selected for 2019 ( * )
	Cycle 1 General Observers proposal selection	Replanned to 07/2019
	Deliver Spacecraft Element to Observatory Integration and Test	Alternate milestone selected for 2019 ( * )
July 2018	Complete Ground Segment test #2	7/25/18
	Retension sunshield after thermal vacuum testing of the Spacecraft Element	Replanned to 06/2019
	Conduct Spacecraft Element Compliance Review, part 1	Alternate milestone selected for 2019 ( * )
	Complete Johnson Space Center (JSC) Chamber A decommissioning	6/14/18
June 2018	Launch Readiness Exercise #1	Alternate milestone selected for 2019 ( * )
June 2018	Deliver final version of the spacecraft handbook to NASA	5/9/18
May 2018	Begin Spacecraft Element thermal vacuum test	Replanned to 04/2019
May 2018	Deliver analysis of launch effects on JWST Observatory	Replanned to 03/2019
April 2018	Deliver results from Spacecraft Element acoustic and vibration tests	Replanned to 02/2019
April 2018	Complete post shipment functional testing of the Telescope	Replanned to 01/2019
March 2018	Complete Spacecraft Element vibration test	Replanned to 11/2018
	Spacecraft thrusters modules ready for installation	2/19/18
	Ship telescope from NASA/JSC to Northrop Grumman	2/2/18
February 2018	Complete Spacecraft Element (combined spacecraft and sunshield) Acoustic Test	Started 3/25/2018
February 2018	Conduct Observatory Deployment Review #3	1/31/18
January 2018	Complete Wavefront Sensing & Control commissioning exercise	3/10/2018
January 2018	Install spacecraft horizontal radiator panels	1/3/18

Due Date	Item Accomplished	Completion Date
December 2017	Conduct Operational Readiness Exercise	12/07/17
	Backup Mission Operation Center ready for use	11/17/17
	Issue Cycle 1 General Observer call for proposals	11/30/17
November 2017	Complete Telescope cryovacuum test	10/20/17
November 2017	Tension the Flight Membranes while on the Spacecraft	10/25/17
October 2017	Pre-Environmental testing Sunshield Deployment	10/23/17
	Deliver Launch Rehearsal Plan to NASA	10/02/17
	Hold Consent to Warm Up Telescope following cryovacuum testing meeting	10/21/17
	Science & Operations Center software package Release 2	10/02/17
September 2017	Complete OTIS thermal vacuum test	10/21/17
August 2017	Tension sunshield membranes while they are mounted on the spacecraft	Delayed to February for delays in spacecraft and sunshield I&T
August 2017	Deliver final report describing spacecraft influence on observatory optical alignment	10/12/17.
July 2017	Deliver vibration test results to support the combined analysis of the rocket and the observatory	Delayed to December for delays in spacecraft and sunshield I&T
July 2017	Conduct second Flight Operations Team Operational Readiness Exercise	6/29/17
June 2017	Start OTIS Cryo-vacuum test at JSC Chamber A	7/13/17
	Deliver Operations Scripts Subsystem software build that supports launch	3/30/17
	Issue final release of call for proposals for Early Release Science Program	5/19/17
	Begin Spacecraft Element Thermal Vacuum test	Delayed to December for delays in spacecraft and sunshield I&T
May 2017	Complete room temperature integration of OTIS and test equipment at JSC	Delayed to June due to OTIS vibration investigation (7/13/17)
	Conduct the Mission Operations Review	4/7/17
	Perform Spacecraft Acoustic Testing	Delayed to August for several factors (Delayed to October for delays in spacecraft and sunshield I&T)
April 2017	Conduct first test of the Ground System (communications and data handling)	Delayed to July due to propellant system re-welding (6/20/17)
	Install the deployable horizontal radiators onto the Observatory	Delayed to July due to propellant system re-welding (Delayed to September for delays arising after sunshield installation.)
	Conduct the Observatory Deployment Review #2	Delayed to May, mid-boom 1 deployer issue (6/13/17)
March 2017	Deliver OTIS to the Johnson Space Center	May 7, 2017
	Deliver the pre-launch Flight Operations System software build	2/17/17
	Delivery of sunshield extension boom #2 membrane attachment assembly to Observatory I&T	Delayed to April due to shift of resources to deliver pallet structures (Completed 4/24/17)
February 2017	Complete OTIS optical measurements after vibration and acoustics tests	Delayed to March for vibration investigation (Completed 3/31/17)
	Deliver wavefront and control software that supports launch (controls telescope mirror shape)	1/20/17
	Deliver horizontal deployable radiators to Observatory I&T	Delayed to April for rework (Completed 7/13/17)
January 2017	Complete OTIS vibration and acoustics testing	3/2/2017
	Deliver observing proposal and planning subsystem software build that supports launch	1/12/17
	Complete electrical testing of spacecraft at Northrop Grumman.	Delayed to March for propellant system re-welding (Completed 3/7/17)

Due Date	Item Accomplished	Completion Date
December 2016	Deliver Forward Sunshield Pallet Structure to Observatory Integration and Test (I&T)	Delayed to February for work on tensioning system (Completed 3/28/17)
	Start OTIS vibration and acoustic testing program	Completed 11/19/16
	Complete final test of engineering model of telescope center section at Johnson Space Center (JSC)	Completed 10/31/16
	Deliver sunshield flight membranes to Observatory I&T	Completed 12/15/16

November 2016	Start optical measurements of OTIS prior to vibration and acoustic tests	Completed 10/24/16
	Deliver Science and Operations Center release 1	Completed 9/30/16
	Perform Cryocooler installation into the spacecraft bus and begin functional testing	Completed 10/29/16
	Complete Aft Unitized Pallet Structure assembly	Completed 10/29/16
	Deliver Aft Unitized Pallet Structure to Observatory I&T	Delayed to January for work on tensioning system (Completed 3/14/17)
October 2016	Complete portable cleanroom for Telescope and Science Instruments (OTIS)	Completed 10/13/16
	Complete final checkout of new shaker tables at Goddard Space Flight Center	Completed 10/13/16
	Begin making electrical connetcions between spacecraft panels	Completed 10/7/16
	Complete Sunshield Mid-Boom Assembly #2 functional test	Delayed to November, accelerometer anomaly during test (Completed 12/5/16)
September 2016	Complete Thermal Pathfinder test at JSC	Delayed to November
	Deliver Forward Sunshield Pallet Structure to Observatory I&T	Delayed to December because of membrane tensioning system component rebuild
	Deliver After Sunshield Pallet Structure to Observatory I&T	Delayed to November because of membrane tensioning system component rebuild
	Complete command procedures for initial test of real-time control of Observatory	Completed 9/28/16
August 2016	Deliver cryocooler and associated electronics to Spacecraft I&T	Completed 5/26/16
	Complete test of model Observatory core assembly thermal performance	Completed 6/30/16
	Deliver flight Observatory core assembly to Observatory I&T	Completed 8/2/16
	Deliver Operations Scripts Subsystem build for Telescope commanding and Spacecraft attitude control	Completed 6/13/16
July 2016	Deliver Spacecraft Structure/Propulsion subsystem to observatory I&T	Completed 6/28/16
July 2016	Deliver Data Management Subsystem build for advanced data search and distribution	Completed 6/1/16
June 2016	Start Thermal Pathfinder test at JSC Chamber A	Delayed to September because of change to how Chamber A cool down specifics will be handled
	Deliver Fixed ISIM Radiator Panels to OTIS	Completed 11/30/15
	Complete flight software verification Test Readiness Review (moving targets)	Completed 6/30/16
	Complete Science and Operations Center System Design Review #2	Completed 5/18/16
May 2016	Deliver Optical Telescope Element (OTE) to OTIS	Completed 3/9/16
	Begin OTIS integration (install ISIM onto OTE)	Completed 3/28/16
	Complete Flight Battery Manufacturing Readiness Review	Completed 1/12/16
	Deliver Flight Operations Subsystem build with real-time command and telemetry functions	Completed 3/28/16
	Deliver Proposal Planning Subsystem build supporting GTO call for proposals	Completed 4/29/16
April 2016	Deliver ISIM to OTIS	Completed 3/31/16
	Complete Sunshield Aft Pallet Structure assembly	Delayed until July
	Complete Spacecraft Panel Integration	Completed 5/25/16
March 2016	Start Spacecraft Panel Integration	Completed 10/26/15
	Complete Sunshield Mid-Boom Assembly #2 functional test	Forecasting July completion data due to latch and detent pin redesign and tubessegment rebuild
	Complete cryocooler thermal performance acceptance testing	Completed 3/5/16
February 2016	Deliver Aft Deployable Instrument Radiator to Observatory I&T	Completed 2/15/16
	Deliver Command & Telemetry computer to Observatory I&T	Delayed til April to re-run testing
	Deliver Secondary Miror Support Structure verification report to GSFC	Completed 1/28/16
	Complete deliveries of Spacecraft wire harnesses	Completed 1/22/16
	Deliver spare Cryocooler Compressor Assembly to JPL	Delayed til May 2016, no schedule impact
January 2016	Deliver flight Aft Optics System to Telescope I&T	Completed December 14, 2015
	Complete final checkout of new GSFC vibration shaker table	Delayed to March, vertical shaker issues
	Sunshield Flight Layer #4 shipped to Northrop Grumman	Completed December 3, 2015
	Sunshield Forward Cover Assembly shipped to Northrop Grumman	Delayed til June. Nexolve revised schedule to implement NGAS design changes. No anticipated schedule impact.
	Complete Flight Operations Subsystem System Design Review #2	Completed December 17, 2015
	Complete Mission Operations Center construction at STScI	Completed December 29, 2015

Due Date	Item Accomplished	Completion Date
December 2015	Complete second test of Pathfinder Telescope equipment at the JSC Chamber A	Completed October 31, 2015
	Complete Solar Array panel #2 cell installation	Completed December 24, 2015
	Complete Sunshield Mid-Boom Assembly #1 functional test	Delayed to April for reassembly of mid-boom #1
	Complete Delivery of Reaction Wheel Assemblies to Observatory Integration & Test (I&T)	Two of 3 wheels delivered in December, 1 in May, being rebuilt, no schedule impact
	Deliver Data Management Subsystem build for basic data search and distribution functionality	Completed November 30, 2015
November 2015	Deliver update for launch and activation sequence of events for JWST commissioning	Completed October 29, 2015
	Deliver the Observaory Operations Handbook Vol 1&2 updates	Completed October 30, 2015
	Deliver new build of the proposal planning software for Telescope plus ISIM (OTIS) testing	Completed October 30, 2015
October 2015	Start Integrated Science Instrument Module (ISIM) cryovacuum test #3	Completed October 27, 2015
September 2015	Deliver Communications Antenna Bi-Axial Gimbal Assembly to Observatory Integration and Testing	Completed August 24, 2015
August 2015	Deliver Spacecraft Side Equipment Panels to Observatory integration and testing	Completed 1st panel August 31, 2015, 2nd panel September 3, 2015
	Deliver Reaction Wheel Assemblies to Observator integration & testing	Forecasting December completion, no schedule impact
	Start ISIM Cryo-vacuum Test #3	Delayed to October because of NIRCam SCA and heat strap repair
	Start Optical Ground Support Equipment Test #2 at JSC	Delayed to October (ripple effect from previous late milestone)
July 2015	Flight spare cryo-cooler assembly to JPL for Acceptance Test #4	Deferred until December 2015, using spare as pathfinder for flight unit
	Aft Deployable ISIM Radiator build complete	Completed June 23, 2015
	ISIM Electro-Magnetic testing complete	Delayed to August because of NIRCam SCA and heat strap repair
June 2015	Attitude Control System test set delivery to Observatory Integration and Test	Completed February 6, 2015
	Propellant Mid-Course Correction testing complete	Completed June 17, 2015
	Delivery of new Vibration Test System to GSFC	75% of hardware in place, remainder in September
	ISIM Acoustic testing complete	Delayed to July because of NIRCam SCA and heat strap repair
	Proposal Planning Subsystem Build 11	Completed April 30, 2015
	Thruster Module Test Readiness Review	Completed February 23, 2015
May 2015	Flight Cryocooler Compressor Assembly to JPL for Acceptance Test #3	Delay at least until July, CCA still experiencing schedule difficulties
	Spacecraft Flight Software Build 2.2 Test Readiness Review	Completed April 30, 2015
	Sunshield Forward Cover Assembly shipped to NGAS	Moved to September, reprioritizing work for efficiencies at Nexolve
	Deliver Flight Aft Optics System to Telescope Pathfinder	Completed April 22, 2015
	Data Management Subsystem Build 4 delivery	Completed March 31, 2015
April 2015	Starf acceptance testing of flight Cryocooler Assembly and Electronics	Completed March 23, 2015 (CCA delayed to September 2015)
	Flight Observatory Deployment Tower Assembly complete	Completed March 12, 2015
	ISIM Vibration Testing complete	Delayed to June because of heat strap repair
	Star Optical Ground Support Equipment test #1 at JSC	Delayed to May
March 2015	Qualification Sunshield Membrane Retention Device thermal vacuum test start	Completed March 12, 2015
	Deliver Cryocooler Jitter Attenuator Assembly to Optical Telescope Element	Delayed to April, ground support equipment issue
	NGAS Acceptance of Spacecraft propellant tank	Delayed to June due to test unit welding issue, no schedule impact
	Near Infrared Instrument Detector changeouts complete	Completed 4/3/2015
February 2015	Start formal Engineering Model Test Bed electrical integration	Completed November 13, 2014
	Sunshield Mid-boom Manufacturing Readiness Review	Completed February 9, 2015
	Sunshield Flight Layer 3 delivered to Northrop Grumman	Completed February 16, 2015
	Deliver Telescope Pathfinder Structure to JSC	Completed February 4, 2015
	Observatory Operations Scripts Subsystem Build 4 delivery	Completed January 16, 2015
	Wavefront Sensing and Control Software Build 4 delivery	Completed December 30, 2014
January 2015	Deliver Spacecraft Simulator handbook, Rev B (flight software build 1) to GSFC	Completed December 11, 2014
January 2015	JSC Chamber A Commissioning complete	Completed November 27, 2014

Due Date	Item Accomplished	Completion Date
December 2014	Demonstration model Mid-Boom Assembly thermal vacuum test start	Completed November 19, 2014
	Transfer Telescope Pathfinder structure owndership to GSFC	Completed October 31, 2014
	Flight Operations Subsystem Build 1 System Design Review	Completed November 20, 2014
	Proposal Planning Subsystem Build 10 delivery	Completed November 3, 2014
	Deliver flight Cold Head Assembly to ISIM for Cryo-vacuum test #3	Completed November 10, 2014
	FIne Guidance Sensor focal plane arrays ready for integration	Completed December 9, 2014
November 2014	Install engineering development unity secondary mirror assembly onto Pathfinder	Completed October 10, 2014
	Johnson Space Center Chamber A commissioning test start	Completed October 18, 2014
	Data Management Subsystem software Build 3 delivery	Completed September 30, 2014
October 2014	Secondary mirror structure dynamics test readiness review	Completed November 20, 2014
	ISIM Cryo-vacuum Test #2 complete	Completed September 23, 2014
	Flight and flight spare MIRI cryocooler electronics assembly delivered to JPL	Completed October 6, 2014
	Johnson Space Center optical ground support equipment integreation complete	Completed October 10, 2014
September 2014	JSC cryogenic test telescope and ISIM test ground support equipment integration complete	Completed October 9, 2014
	Complete cryo-vacuum test of fully integrated ISIM ("CV2")	Completed October 10, 2014 (government shutdown delay)
	NIRSpec new microshutters ready for integration	Completed July 14, 2014
August 2014	Sunshield Mid-boom and Stem assembly Manufacturing Readiness Review	Stem assembly MRR complete, mid-boom delayed
	Spacecraft Flight Software Build 2.2 Test Readiness Review	Delayed to 4/30/15, 5 mo. Schedule slack to need remains.
	NIRSpec and FGS/NIRISS new Focal Plane Arrays ready for integration	Completed September 30, 2014 (NIRSpec), FGS (12/1/2014)
July 2014	JSC Chamber A cryogenic proof test and bake out complete	Proof test completed, bake-out concluded in July, no impact to schedule
	Spacecraft Mid-course correction thruster final assembly complete	Delayed to January 2015, 3 months of schedule slack to need date remains
	Proposal Planning Subsystem build 9 complete	Completed April 30, 2014
June 2014	Flight spare MIRI cryocooler assembly delivered to JPL	Completed Delayed to Dec., VM welding issue
	JSC Chamber A bake-out and cryogenic proof testing complete	Proof test complete, bake-out concluding in July, no schedule impact
	Hardware ready for MIRI cryo cooler test #3: checkout complete	Delayed to Feb 2015, due to late cryocooler assembly delivery to JPL
May 2014	Updated Observatory Commissioning Plan (rev C) delivery	Completed April 28, 2014
	Start acceptance testing of flight cryocooler assembly and associated electronics	Delayed to January 2015 due to late cryocooler assembly
	Start cryo-vacuum test with fully integrated ISIM ("CV2")	Completed May 29, 2014
April 2014	Telescope actuators electronics drive unit delivery	Completed April 1, 2014
	Flight MIRI cryocooler assembly delivered to JPL	Delayed to September, Verification Model welding issue
	MIRI cryocooler flight refrigerant line deploymentassembly delivered to integration and testing	Completed April 30, 2014
	Sunshield membrane cover assembly manufacturing readiness review	Completed April 30, 2014
	MIRI cryocooler test readiness review	Delayed to December, due to late cryo-cooler assembly
March 2014	Spacecraft Solar Array Manufacturing Readiness Review	Completed February 21, 2014
March 2014	JSC Chamber A Telescope ground support equipment test #1 design review	Completed February 26, 2014
February 2014	Secondary Mirror Mount delivery	Completed February 19, 2014
	MIRI Cryocooler flight electronics delivered to JPL	Delayed to April, resolving parts issues, no schedule impact
	Final Data Management Subsystem Design Review	Completed November 22, 2013
	Flight NIRSpec ready for integration into ISIM	Completed February 4, 2014
	Flight NIRCam ready for integration into ISIM	Delayed until March 8, 2014 due to harness issues and snow delays
January 2014	Delivery of last Primary Mirror Segment to GSFC	Completed December 16, 2013
	Observatory Operations software scripts Build 3 complete	Completed January 16, 2014
	New detector focal plane arrays for NIRCam ready for integration into instrument	Completed November 20, 2013

Due Date	Item Accomplished	Completion Date
December 2013	Spacecraft Critical Design Review complete	Completed January 16, 2014 (shutdown delay)
	MIRI cryocooler flight cold head assembly delivered to ISIM	Delayed to August 2014
	JSC Clean Room ready to receive ground support equiment	December 23, 2013
	Complete ISIM cryogenic-vacuum risk reduction test	Completed 11/13/13 but not all tests completed due to shutdown
November 2013	Mirror deployment electronics unit manufacturing readiness review	October 8, 2013
	Jet Propulsion Lab (JPL) cryogenic test chamber readiness review	December 19, 2013
	Johnson Space Center (JSC) Telescope and ISIM support structure fabrication complete	November 4, 2013
October 2013	Primary mirror backplane support structure cryogenic testing readiness review	September 10, 2013
September 2013	Latest acceptable arrival of Flight Near Infrared Spectrograph (NIRSpec) for inclusion in second ISIM cryogenic test	September 20, 2013
	Sunshield membrane cover manufacturing readiness review	Deferred to December 2013, no schedule impact
	Completion of studies and trades for mission mass margin in preparation of spacecraft critical design review	April 11, 2013
	Complete first ISIM cryogenic test	Moved to October 2013 due to Harness Radiator delay
	JSC thermal vacuum chamber frame that holds test equipment suspended above the JWST mirror and instruments ready for painting	July 24, 2013
August 2013	Latest acceptable date of Near Infrared Camera (NIRCam) into ISIM integration and test flow for inclusion in second ISIM cryogenic test	Moved to September 2013 due to testing delays, slack to need date remains
August 2013	BSF/ Primary mirror backplane center section integration complete	August 27, 2013
July 2013	MIRI detector cooling attachment (flight Cold Head Assembly) delivered to GSFC [delayed fiscal 2012 milestone]	Moved to November, technical issues, 2 months margin remains for CV2
July 2013	Spacecraft flight software build 2.1 test readiness review	June 28, 2013
June 2013	Spacecraft thermal control system critical design review	May 15, 2013
	Spacecraft wiring critical design review	June 28, 2013
	Rods that suspend telescope and instruments from ceiling of JSC thermal vacuum chamber for testing complete	May 21, 2013
	Start first ISIM cryogenic test (risk reduction activity)	Moved to August 2013 - delayed by Harness Radiator delivery
May 2013	Telescope primary mirror backplane support fixture (BSF) assembly complete (holds ISIM, primary mirror and spacecraft together for launch)	May 6, 2013
April 2013	Sunshield Template Membrane Layer #2 fabrication complete	April 13, 2013
	Spacecraft-to-ground communications subsystem critical design review	March 12, 2013
	Software build v 1.1 for the system that senses and controls Webb's active mirrors	February 13, 2013
March 2013	Deliver last primary mirror actuator motor electronics unit (Cryo Multiplex Unit)	Units completed, ship date is 4/26
	Spacecraft fine sun sensor critical design review	Completed January 15, 2013
	Space Vehicle Thermal Simulator systems requirements review	Completed January 23, 2013
	Complete FGS & MIRI integration onto ISIM	FGS installed in March, MIRI installed 4/29 to accommodate MIRI thermal shield delay
February 2013	Secondary Mirror Support Structure I&T tooling fixture complete	February 27, 2013
	Primary mirror backplane support wing assemblies complete	February 19, 2013
	Spacecraft Primary Structure Manufacturing Readiness Review	January 28, 2013
	Start cryogenic certification test of OSIM	Moved to March 2013 - delayed by Global Precipitation Monitor exit from SES chamber
January 2013	Aft optical system complete	January 10, 2013
	Receive JWST carrier container to be used in moving the observatory to testing and launch sites	November 16, 2012
	System design review of the software employed in managing all the data returned from the spacecraft to the operations center	December 6, 2012
	Deliver MIRI cover/thermal shield to ISIM integration and test (I&T)	Dynamics and Thermal issue have delayed delivery to March, Two weeks of schedule margin still exists to need date

Due Date	Item Accomplished	Completion Date
December 2012	First engineering model of the spacecraft command and telemetry computer delivered to test bed	November 8, 2012
	Reinstall beam image analyzer onto telescope simulator (OSIM) used in ISIM cryogenic testing	December 19, 2012
	Complete electrical checkout of combined fine guidance sensor (FGS) and ISIM	December 20, 2012
November 2012	Spacecraft-to-Optical Telescope Element/science instruments stray light and thermal barrier structures preliminary design review	October 18, 2012
	Port side spacecraft equipment panel design review (Northrop internal review)	October 4, 2012
	Complete electrical checkout of combined mid-infrared instrument (MIRI) and integrated science instrument module (ISIM)	November 19, 2012. 2 days of testing required in Jan. due to FSW bug (divide by zero)
October 2012	Headquarters delivery to project of funding plan for fiscal 2013	September 15, 2012
	Spacecraft batteries preliminary design review	September 6, 2012
	Spacecraft command & telemetry computer review (Northrop internal review)	August 30, 2012
	Second review of optical test equipment for Johnson Space Center (JSC) thermal vacuum chamber test of telescope and instruments (OTIS)	October 17, 2012
September 2012	Deliver NIRCam	Moved to no earlier than 12/2012, work around in place Delivery no later than August 2013
	Start testing of cryogenic camera system, used for subsequent JSC I&T	August 9, 2012
	Complete center section of Backplane Support Structure for main mirror	April 28, 2012
	Deliver NIRSpec	Delivery date April 2013 Delivery no later than September 2013
August 2012	Order remaining JSC thermal vacuum chamber vibration isolators	August 9, 2012
July 2012	Deliver Flight Fine Guidance Sensor	July 30, 2012
	Deliver flight software to ISIM Integration and Testing ("ISIM I & T")	May 11, 2012
	Complete Solar array Preliminary Design Audit	June 14, 2012
	Deliver MIRI Cryo Cooler "Cold Head Assembly" (critical component of MIRI cooling) to ISIM I&T	Flight CHA to be delivered in June 2013. No schedule, impact, work around in place.
	Complete fabrication of end fitting for Secondary Mirror Support Structure	July 13, 2012
June 2012	Complete modifications of the Johnson Space Center (JSC) Thermal Vacuum Chamber (TVC).	June 30, 2012
	Complete Critical Design Review for telescope-ground communications system.	June 13, 2012
	Complete designs for structures that will hold telescope inside JSC TVC	June 21, 2012
	Complete Preliminary Design Review for equipment that tests Sunshield deployment.	June 28, 2012
May 2012	Finish testing the COCOA	March 9, 2012
	Measure Sunshield template layer 5 shape to confirm its accuracy	April 23, 2012
	Conduct budget and schedule review of replanned program and project performance	May 30, 2012
April 2012	Complete all composite parts for mechanism that lifts telescope away from spacecraft after launch (Deployable Tower Assembly)	February 28, 2012, completed two months early
April 2012	Receive MIRI from Europe (extra vibration test delay)	May 29, 2012
March 2012	Deliver ISIM computer #2 to ISIM integration and testing. (Single synchronous dynamic random access memory chip failure during computer thermal vacuum testing. Chip is being replaced and computer retested. )	May 15, 2012
	Complete analysis of JSC Thermal Vacuum Chamber telescope testing equipment plans	March 19, 2012
	System Engineering Team to complete assessment of instrument thermal margins	March 1, 2012
	Delivery of 2nd ISIM computer to Integration and Test	May 16, 2012
February 2012	Install Helium shroud walls at JSC Thermal Vacuum Chamber	February 2, 2012, (all panels, walls, floor, ceiling, door)
February 2012	Complete assembly and initial testing of main mirrors at Marshall Space Flight Center	December 19, 2011, Completed two months early
January 2012	Conduct Critical Design Review for Spacecraft-to-Optical Telescope Element vibration isolation system	December 15, 2011, Completed one month early
	Finish building Center of Curvature Optical Assembly ("COCOA") for testing primary mirror in JSC TVC	January 19, 2012
	Review preliminary requirements for ground structure for spacecraft equipment panels	December 1, 2011, Completed one month early
	Complete Aft Optic System integration and alignment	December 2, 2011, Completed one month early

Due Date	Item Accomplished	Completion Date
December 2011	Install Helium shroud floor at Johnson Space Center thermal vacuum chamber ("JSC TVC")	October 27, 2011 Completed two months early
December 2011	Determine root cause of NIRSpec optical bench flaw	December 15, 2011
November 2011	Complete electronics simulator model for Integrated Science Instrument Module ("ISIM")	November 15, 2011
November 2011	Deliver tools for software development environment and verification	October, 27, 2011 Completed one month early
October 2011	Begin construction of 140,000-lb robotic facility to build segmented main mirror at GSFC	October 4, 2011
September 2011	Deliver Flight ISIM Electronics Compartment to ISIM Integration & Test	August 2012
September 2011	Deliver flight ISIM Command & Data Handling unit #1 to ISIM Integration & Test	September 27, 2011
August 2011	Spacecraft Flight Software Build 1 Technical Readiness Review	June 30, 2011, Completed two months early
July 2011	Deliver ISIM Region 1 Wiring Harnesses	July 22, 2011
July 2011	Deliver ISIM Structure to ISIM Integration & Test	July 28, 2011
June 2011	Complete Common Command & Telemetry System Build 2.3	April 13, 2011, Completed two months early
June 2011	Start ISIM level Integration & Tes	June 24, 2011
May 2011	Start flight Fine Guidance Sensor environmental testing (instrument level)	May 5, 2011
May 2011	Complete Spacecraft Secondary Mirror Segment Cone Structure internal Design Review	April 20, 2011 Completed one month early
April 2011	Pathfinder Primary Mirror Segment Assemblies complete	April 25, 2011
	Deliver ISIM Command & Data Handling test unit to ISIM Integration & Test	April 22, 2011
	Complete 2018 Launch Readiness Date project lead Joint cost & schedule Confidence Limit (JCL)	April 28, 2011
March 2011	Complete flight ISIM Remote Services Unit Thermal Vacuum testing	February 19, 2011, Completed one month early
	Deliver Fine Guidance Sensor (FGS) test unit electronics to ISIM Integration & Test	February 24, 2011, Completed one month early
	Complete 2018 Launch Readiness Date budget details	April 7, Completed one week late
February 2011	Deliver Near-Infrared Spectrograph flight spare detector to GSFC	January 29, 2011, Completed one month early
	Pathfinder Primary Mirror Backplane Support Structure delivered to Northrop Grumman Aerospace Sys	March 25, 2011, Completed one month late (weather conditions affected shipping)
	Establish No-Earlier-Than Launch Readiness Date as part of replan	February 25, 2011
	Establish Work Breakdown Structure for new GSFC responsibilities	February 28, 2011
January 2011	Ship Mid-Infrared Instrument (MIRI) Focal Plane Electronics to ESA (Rutherford Appleton Lab.)	January 20, 2011
January 2011	Ball's Flight Actuator Drive Unit Software Test Review	January 24, 2011

JAMES WEBB SPACE TELESCOPE

Goddard Space Flight Center

James Webb
Space Telescope

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