P18571: Sunspot Radio Telescope III

Gate Reviews

Table of Contents

MSD I: Readiness to move to Build & Test

Team Self-Critique

Major Issues Encountered Score: 1-5 Plan to Address (or how it was addressed)
Norms & values:
- Team dynamics: conflict, leadership/control, communication 4 Few times rubbed elbows
- Individual behavior/performance/participation 5
Logistics: scheduling meetings, scheduling work 2 Do things too late. Work on things sooner, and steadily. Also have more time
Skills gap? 3 Assymetric skill distribution, lots of outside learning
Customer requirements: access to customer, clarity of rqmts, behavior (support, commitment, attitude) 5
Engineering requirements: quality, completeness, flowdown to subsystems, traceability 4 Be more explicit about how work relates to ERs
Risk assessment and mitigation plans: missed important risks, focus on minor issues, ineffecitve mitigation plans, etc. 3 Not too many risks, not much development
Project planning & tracking: unrealistic schedule, poor tracking, not proactive, no accountability 2 Mostly short term, not too much long term. Better tracking
Systems design: benchmarking inadequate, limited concepts, functional decomposition gaps, mapping between functional and physical architecture, interface complexity, etc. 5
Engineering analysis & feasbility: analysis gaps or prioritization, appropriateness of analysis, timing, etc. 3 Remains to be seen in MSD 2.... Concerns over Radio Eyes integration
Detailed design: scope, complexity, resources, time, etc. 4 Concerns about timing
Test planning: ambiguity, implementation difficulty, resources, ownership 3 All test plans need to be elaborated on. Software tests must be written
Design reviews: participation, value-added 5
Self-Assessment Score: 1-5 Comments
Knowledge: Consider team members knowledge, and ability to learn tools, procedures, methods, equipment and materials. 5
Technical: Consider team members technical competency within application areas required such as mechanical, electrical, software, etc. As necessary, also consider technical competency outside application area. 4 True test of competency outside application areas will happen in MSD 2, when everyone will have to develop software
Creativity: Consider the team members creativity with regards to contributions such as design, assembly, testing, debug, documentation, presentations, etc. 4 Dont know how to answer this, team clearly needs improvement.
Quality: Consider the accuracy and thoroughness of team and assess results in terms of errors, rework, and ability to complete tasks correctly the first time. 3 Remains to be seen

Status Review

Overall project status

– yellow to green light, leaning towards green.

Customer is well versed in the design. Software design needs to be refined. All major subsystems reviewed. Design is robust. Budget is on track to be met. No long lead time items, only medium to short lead times exist, most have been ordered. Work can begin immediately.

Current plan vs original plan

Original project plan was naive, and misallocated time to activities that were not that important. Not enough was known about the system at the time of writing. Many design activities were closed, but much of the software design blends in with its development. Some software development has already occurred, despite open mechanical and electrical tasks that were of low importance.

Preliminary Schedule for MSD II

Very high level schedule prepared. Low level, short term deliverables will be controlled through Meistertask


A lot of the risk has been reduced through design choices or intelligent assessment. Much of the risk identified by previous teams was found to be trivial, or not applicable

The major risks are time dependent, because of the small size of the team and outside obligations, as well as the major design pivot to try to rely less on RadioEyes software and create our own algorithm

Individual Commentary

Project Plan

public/Gate Review/MSD2Schedule.PNG

Project Plan

Risk Management

ID Category Risk Item Effect Cause Likelihood Severity Importance Action to Minimize Risk Owner
R1 Technical Time Telescope does not get completed Poor planning, skill gap, insufficient work time 2 3 6 Improve scheduling, utilize schedule that is more free for MSD 2, offload work off Brandon ALL
R2 Technical Improper feedhorn installation Feedhorn may have loose mounting or be unable to be assembled. Manufacturing Faults 1 3 3 "Use proper machining procedures" ME
R3 Technical Unreliable internet connection to Zurich May not be able to transmit all data overnight. Environmental conditions including thunderstorms. 2 1 2 "Provide data backup until Zurich server confirms reception" CE
R4 Technical Dish may be too heavy for motors/actuators Tracking functionality is lost, manual repairs required Ice buildup, power depletion, errors in measurements 1 2 2 Motors oversized for current load CE
R5 Technical File transfer system error Zurich server receives incomplete data Power lost or connectivity issues. 1 2 2 "Provide data backup until Zurich server confirms reception" CE
R6 Technical Auto-calibration error Incorrect data analysis, manual repairs required Drift of control systems over time 2 3 6 2 callistos in parallel, one for cal one one for data CE
R7 Technical TeamViewer software error Remote operation made difficult or impossible Loss of connectivity, random glitch 1 1 1 Ensure system doesnt rely on TeamViewer/Active user input CE
R8 Technical UPS battery dies System loses power and is no longer operational. Mains power is lost and UPS battery is exhausted. 1 2 2 Put system into safe shutdown state before battery is exhausted EE
R9 Technical RadioEyes/LabView incompatibility Additional time required for integration solution No documented API support 2 2 4 Plan B (parallel solution/other), Alternate Suntracking algorithm CE
R10 Technical Feedhorn selection may carry unexpected collaterals (integration) RX levels may become inefficient for extraction from raw signal Mismatching impedance and frequency response 0 1 0 Not really a concern EE
R11 Technical Software Error Data may be corrupted or incorrect; Zurich may not recieve data at all Improper program setup / unforeseen program error 2 2 4 "Perform extensive software testing and provide data backup" CE
R12 Technical Interference between subsystems May cause errors or discrepencies in subsystem operation Improper magnetic shielding on power lines near vulnerable systems 1 2 2 "Isolate magnetic interference, or place wiring more carefully" EE
R13 Technical Improper power management One or more subsystems failing due to internal power loss Power delivery components insufficient to meet power needs 1 3 3 Perform extensive power system calculations EE
R14 Technical Internal subsystem overheating Damage to one or more subsystems Inadequate cooling systems or lack of temperature sensor 1 3 3 Test Plan for thermal model validation ME
R15 Technical UPS overheat Damage to battery system Temperature sensitive battery in harsh enviornment 1 3 3 Will install UPS indoors ME
R16 Resource Insufficient budget to meet all project requirements May need to take performance hits to accomodate cheaper budget Limited funds (~$500) 1 1 1 "Design and build where possible" All
R17 Resource Destruction of Suntracker project hardware Loss of uniquely designed hardware, project delays Incorrect assumptions about input levels and tolerances 1 3 3 Observe best practices All
R18 Resource Inadequate space to assemble and test Team may not be able to build project Dish components too big for design space 1 3 3 Ensure that proper space or devices are reserved well in advance, only attempt finaly assy onsite All
R19 Resource Theft of system components Irreplaceable components may be lost Improper storage of materials 1 3 3 Lock physical project materials in a locker/keep at home All
R20 Resource Insufficient backup data storage Zurich or ASRAS server may fail to recieve data Insufficient or nonexistant backup data storage 0 2 0 Amount of data needed to exceed data capacity exceeds lifetime of system CE
R21 Environmental Remote log-in to unit may pose security threat System may be tampered with by unauthorized user Malicious actor obtaining password/login information 1 3 3 "Ensure strict security in regard to username/ password information" All
R22 Technical IP66 may not be as advertized Water Damage Leak, improper sealing 1 3 3 Test current enclosure, use waterproof sealing ME
R23 Technical Software sends too many emails consecutively Flooded Mailbox Periodic Failure alerts 1 1 1 Batch alerts together, rate limit messages CE
R24 Technical Smarthost service unavailable System unable to send email alerts Service is unavailable 1 2 2 Alternate alert mechanism (stacklight) EE
R25 Technical Wind Damage System components break High winds, low structural integrity 1 3 3 Perform comprehensive stress analysis, reinforce structure ME
R26 Technical System achieves resonance from wind System components break Winds hitting natural frequency of structure 1 3 3 Apply Damping ME
R27 Technical Heat Sensor Fails System overheats Random Failure 1 2 2 Overkill on cooling solution ME
R28 Technical Humidity Sensor Fails Loss of humidity information, water damage Random Failure 1 1 1 Enhanced waterproofing solution ME

Risk Management

MSD II: Project close-out


Status Review

Current state of the project

Deliverables Checklist and Website Status

Lessons learned, etc.

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