Claude Skills by ashfordeOU

Use when group the cables and shields of a spacecraft harness into categories under ECSS-E-ST-20C clause 6.3.8.3: assign every wire run to one harness category, from very sensitive receive coaxial and low-level analogue through sensitive digital and secondary power to noisy primary power, very noisy motor drive and transmit coaxial, and segregated pyrotechnic firing; derive the minimum bundle separation for each routed pair from the category ranks; select the shield termination style from the...

Use when maintain the analysis and test planning inside a spacecraft charging protection programme under ECSS-E-ST-20C clause 6.3.4.2: categorize each planned activity as a charging analysis task or a charging test task, derive the mandatory task set from the charging regime the item is exposed to, report every required task that is absent or left unplanned, compute the steady-state field a penetrating electron flux drives into a dielectric against its derated breakdown strength, derive the c...

Use when determine whether a spacecraft owes a charging protection programme under ECSS-E-ST-20C clause 6.3.4.1 and whether the one on record is complete and agreed in time: map the mission orbit onto its charging environment regime, collect the drivers that make the programme applicable including bus voltage, exposed external dielectric area, cumulative exposure and any ungrounded conductive element, derive the section list those drivers demand, report every section the programme does not ca...

Use when assess and group the equipment and subsystem circuits of a spacecraft by functional criticality under ECSS-E-ST-20C clause 6.3.1.1: derive each circuit's category from its hazard, mission-loss and degradation attributes, order the inventory with the safety-critical group first, raise a circuit that couples into a higher-criticality victim to that victim's level for interference control, read the interference margin the category demands from the project ladder, and compare the demonst...

Use when rate the criticality of every spacecraft command under ECSS-E-ST-20C clause 4.1.3: categorize the worst-case effect of an inadvertent or erroneous execution at equipment level, evaluate reversibility and the available onboard recovery to determine an equipment criticality level, then confirm that level system wide by escalating any command that drives a single-string critical function or propagates across subsystems, bound any downgrade claimed from redundancy, and verify each retain...

Use when assess how the surface finish of a composite antenna part changes its radiating performance under ECSS-E-ST-20C clause 7.2.2.4.2: categorize the radiating face as a bare woven-carbon face, a resin-rich face, a metallized face or a coating carried over metallization, convert the root-mean-square surface error into the Ruze aperture-efficiency loss at the operating wavelength, derive the ohmic reflection loss from the sheet resistance of the conducting face, add the loss of incomplete ...

Use when evaluate the closed-loop stability of a spacecraft power converter or regulator under ECSS-E-ST-20C clause 5.7.5: categorize the loop as a switching converter, a linear regulator or a bus control loop, set the phase-margin and gain-margin targets that category carries unless the project requirement overrides them, enumerate the worst-case corner set from the temperature, input-voltage and load extremes, build the open-loop frequency response from the direct-current gain, poles, zeros...

Use when design radio-frequency chain hardware against corona onset and verify it with the margin-allowance the evidence in hand actually earns, under ECSS-E-ST-20C clause 7.3.3.2: convert an onset voltage into a corona-onset-power, raise the applied peak voltage for the standing-wave mismatch the item presents, state the headroom between them as a corona-margin, categorize the route as flight-standard-test, representative-model-test, numerical-analysis or heritage-similarity, apply the allow...

Use when identify which intermodulation products of a transmit carrier-plan fall inside a sensitive receive-band or a protected-band under ECSS-E-ST-20C clause 7.4.3: enumerate the integer coefficient sets of every carrier combination up to the declared maximum intermodulation-order, compute each product frequency, drop the non-physical and the mirrored-duplicate sets, test every surviving frequency against the victim band edges widened by the guard-band, rank the hits by intermodulation-orde...

Use when perform an electromagnetic compatibility verification run against the detailed requirement it references under ECSS-E-ST-20C clause 6.4.3: resolve that reference and flag a run citing a requirement the applicable set does not hold, compare the swept segments with the frequency range the procedure fixes and list the sub-bands nobody swept, hold the frequency step inside the share of the measurement-bandwidth allowed, divide each segment dwell over its frequency points and accumulate t...

Use when verify the interference-safety-margin demonstrated for a critical circuit or an electro-explosive-device firing circuit under ECSS-E-ST-20C clause 6.4.2: read the separation the circuit category demands off the programme ladder, de-rate the declared no-fire-threshold to the demonstration value, convert an induced-current or an induced-radio-frequency-level onto the decibel scale with the field-quantity or energy-quantity law the measurement obeys, refuse paper-only evidence where the...

Use when verify that the bonding of spacecraft structure and equipment meets the electromagnetic design provisions referenced by ECSS-E-ST-20C clause 6.3.8.1: categorize each bond by the function it performs, take the resistance window that function imposes, compute a strap's direct-current resistance from its geometry and contact interfaces, check a radio-frequency reference bond for strap length-to-width ratio and impedance at the frequency of interest, screen the dissimilar-metal couple ag...

Use when compute an electrical technical budget and evaluate it against the margin policy that ECSS-E-ST-20C clause 4.2.2.2 inherits from the general engineering standard: categorize the budget into its power, signal or physical domain, apply the maturity-based contingency to each equipment line item without double counting a contingency already folded into its nominal value, roll the duty-cycled line items up into a per-mode demand, select the worst-case mission mode, add the project-phase s...

Use when verify the safety features of a separable electrical connector under ECSS-E-ST-20C clause 4.2.3, so that no energized contact is exposed during a mating or demating operation: categorize the connection as power, test, signal or ordnance, determine which side stays energized once demated and require recessed socket contacts there, derive the full safety-feature set the connection demands and report every feature not implemented, decide whether a scoop-proof shroud is required from wor...

Use when audit the electrical design documentation set required by ECSS-E-ST-20C clause 4.3.2: derive which supporting analyses an electronic item actually owes -- worst case and reliability always, thermal once it dissipates power, radiation once it accumulates mission dose, electromagnetic once it carries external interfaces -- compute the worst-case parameter excursion by extreme-value or root-sum-square stacking of tolerance, temperature drift and ageing, check part derating and radiation...

Use when determine the verification method and closure milestone for every electrical and electronic engineering requirement under ECSS-E-ST-20C clause 4.3.1: pick the method that actually produces evidence for the requirement characteristic at hand, check that the planned review is not earlier than the selected method can physically close, confirm each provision names an evidence artefact, and prove the verification matrix covers every requirement with no orphan provision pointing at a requi...

Use when size and cross-check the spacecraft electrical power chain introduced by ECSS-E-ST-20C clause 5.1: place every power element into generation, storage, conditioning or distribution, derive the bus architecture from whether the bus is regulated in sunlight and in eclipse, compute the eclipse energy the storage must deliver through the distribution efficiency, the usable capacity that implies at the allowed depth of discharge, the sunlit generation needed to carry the load and recharge ...

Use when assess whether a payload or electrical subsystem conforms to the space product assurance safety requirements invoked by ECSS-E-ST-20C clause 5.9: categorize each electrical hazard into its family, derive the severity band from the credible worst-case consequence, translate that band into a failure tolerance and the count of independent monitored inhibits the design must carry, compute the charge a stored-energy source still holds when the bleed period ends and compare it against the ...

Use when structure and run the electromagnetic compatibility advisory board that ECSS-E-ST-20C clause 6.2.3 places over a project's electromagnetic compatibility decisions: categorize each nominated member as a core, contributing or observer seat, check the mandatory chairperson, system-engineering, customer, product-assurance and grounding-authority roles are filled, confirm every emitting or susceptible subsystem holds a representative, compute the voting membership and the quorum a sitting...

Use when assess whether a verification plan closes every electromagnetic effects requirement the way the ECSS-E-ST-20C Annex B data-requirement expects: categorize each requirement by kind (radiated-emission, conducted-susceptibility, electrostatic-discharge, electrical-bonding-resistance, grounding-architecture, magnetic-moment-limit), check the assigned method -- verification-by-test, verification-by-analysis, verification-by-similarity, verification-by-review-of-design, verification-by-ins...

Use when audit an electromagnetic-effects verification report against the ECSS-E-ST-20C Annex C data-requirement: categorize every verification activity into its electromagnetic family (conducted-emission, radiated-emission, conducted-susceptibility, radiated-susceptibility, electrostatic-discharge-immunity, magnetic-moment, bonding-and-isolation), recompute the demonstrated-margin from the applicable-limit and the measured-level in the correct sense, grade each demonstrated-margin against th...

Use when determine the electromagnetic interference safety margins at the critical points of a spacecraft electrical design under ECSS-E-ST-20C clause 6.3.1.3: categorize each critical point as an ordnance firing circuit or as a safety-critical, mission-critical or non-critical function, read off the separation that category demands, normalise the demonstrated susceptibility threshold and the observed interference level onto one scale, compute the separation in decibels with the amplitude or ...

Use when compute whether radiated fields keep people, propellant, ordnance and actuated thruster valves below their hazard thresholds under ECSS-E-ST-20C clause 6.3.3: categorize every receptor as personnel, fuel, ordnance or thruster actuation, derive the emitter's effective radiated power and far-field boundary, evaluate the incident power density in whichever field region the receptor stands in, compare it against the frequency-dependent occupational limit or the propellant-vapour limit, c...

Use when verify that an electromagnetic-compatibility control plan carries the content ECSS-E-ST-20C Annex A calls for: check every content block is declared and non-empty, confirm the organisation block names the compatibility owner, its reporting path and its control-board interface, categorize each register entry by interference mechanism and control measure and reject a measure that does not act on the coupling path it claims to control, power-sum the emitter levels behind each victim and...

Use when draft and hand over the electromagnetic compatibility control plan in time for the preliminary design review under ECSS-E-ST-20C clause 6.2.2: categorize each mandatory plan section as management, design or verification content, list the sections the plan does not declare, score the maturity every declared section has reached, compute the completeness index the plan holds at hand-over, count the calendar lead between the issue date and the review against the data package deadline, an...

Use when derive and check the detailed electromagnetic compatibility design of spacecraft equipment under ECSS-E-ST-20C clause 6.3.9: categorize each requirement as conducted emission, conducted susceptibility, radiated emission, radiated susceptibility or electrostatic discharge immunity; read the applicable level off a piecewise limit line interpolated against the logarithm of frequency and compare the measured level with it; power-sum the conducted emission of every unit sharing a bus befo...

Use when prepare and check the paired electromagnetic compatibility verification plan and verification report a supplier owes under ECSS-E-ST-20C clause 6.4.1: confirm each document declares the content its own mandatory section set demands, trace every planned verification activity into a report entry and reject an orphan entry no plan activity foresaw, hold the plan issue date far enough ahead of the first activity and the report issue date after the last one and inside the review data-pack...

Use when determine whether one space equipment item may replace another under ECSS-E-ST-20C clause 4.2.6: confirm both units carry the same part number and a revision declared form-fit-function neutral, categorize every recorded attribute as form, fit or function, grade numeric attributes against the declared interchangeability tolerance and discrete attributes on exact equality, report an attribute whose tolerance was never declared instead of passing it, check the candidate's qualification ...

Use when verify that the stimulus and measurement points of a space electrical equipment item meet ECSS-E-ST-20C clause 4.2.4: categorize each access provision as non-intrusive (dedicated test connector, buffered monitor pin, breakout box) or intrusive (connector demate, wire splice, solder-lug tap), flag any provision that alters the electrical configuration of the unit under test, compute the instrument loading error from source and input impedance and derive the input impedance the allowab...

Use when verify that a single hardware fault inside one spacecraft electrical item cannot spread to a neighbouring circuit, component or interface under ECSS-E-ST-20C clause 4.2.1.1: categorize each postulated fault mode into its propagation family (conducted overcurrent, conducted overvoltage, loss of continuity, dielectric breakdown), enumerate the coupling paths tying the faulted item to each neighbour, credit a declared containment barrier only where it covers that family on that path, an...

Use when verify that a radio-frequency chain stays free of corona and gas discharge at its maximum-operating-power across the whole declared environment envelope under ECSS-E-ST-20C clause 7.3.3.1: build the peak-envelope-power the item really carries from its carrier set, mismatch uplift and tolerance stack, categorize every mission phase into its ambient-pressure regime, locate the worst-case pressure inside each declared band instead of assuming an edge, scale the measured discharge-onset-...

Use when verify that a spacecraft harness is routed so the wiring never carries structural or mechanical load under ECSS-E-ST-20C clause 5.8.2: categorize each attachment as a restraint or a load-path misuse, compute the transverse load per metre a bundle sees under quasi-static launch acceleration, derive the span tension and sag from the installed slack, check that tension against the bundle allowable and that sag against the clearance to neighbouring hardware, size the service loop a cross...

Use when determine whether unpotted, unpressurised high voltage hardware may be energised at a given ambient pressure under ECSS-E-ST-20C clause 5.10: categorize the operating state by ambient regime, confirm the provision bites because the item is neither encapsulated nor sealed behind a pressurised wall, evaluate the gas breakdown voltage of the gap from its pressure-times-gap product, bracket the critical pressure window in which the applied voltage can strike a discharge, check that the e...

Use when determine which requirements of a standard apply to one product while tailoring by product type, per ECSS-E-ST-20C clause 8.2: read each requirement's applicability category, treat an exclusive requirement as applicable only to the product types it names and an inclusive requirement as applicable to every product type it does not except, resolve a product carrying several type roles by union, reject a catalogue entry whose category and product-type list contradict each other, and bui...

Use when derive and submit for customer approval the list of points at which electromagnetic interference margin is demonstrated, as ECSS-E-ST-20C clause 6.3.1.2 requires: select a candidate point for every safety-critical and mission-critical victim circuit on each distinct coupling path, validate each point's frequency band and mandatory record fields, merge the point bands to expose any uncovered stretch of the project's electromagnetic spectrum span, and track whether the assembled list r...

Use when verify by measurement that the intermodulation products of a unit stay inside the agreed acceptance-level under ECSS-E-ST-20C clause 7.4.4: take the lowest critical intermodulation-order as the product to measure, check the two-carrier-test-configuration (carrier-power, carrier frequencies, measurement-bandwidth, dwell) against the flight carrier-plan, confirm the measurement-system residual sits the required headroom below the acceptance-level so a reading means something, add the m...

Use when assess the electromagnetic environment a spacecraft meets before and during launch and demonstrate compatibility with it under ECSS-E-ST-20C clause 6.3.2.2: categorize each campaign phase as prelaunch or launch and each environment source as a launch-site fixed emitter, a launcher-borne emitter, a processing-facility emitter or an electrostatic source, compute the free-space field an emitter puts on the spacecraft at its separation distance, attenuate it through the fairing while the...

Use when compute the reflective and transmissive behaviour of a lens-antenna dielectric material and the resulting antenna impact under ECSS-E-ST-20C clause 7.2.2.3.3: categorize the lens material as a low-loss-thermoplastic, dielectric-foam, ceramic-dielectric or artificial-dielectric, read its relative-permittivity and loss-tangent, compute the air-to-dielectric interface-reflectance at the illuminated and exit faces, design or check a quarter-wave matching-layer, turn the loss-tangent and ...

Use when verify that a space system withstands direct and indirect lightning effects under ECSS-E-ST-20C clause 6.3.2.4 without performance degradation: categorize each coupling mechanism as a direct attachment effect or an indirect induced effect, assign every external region its lightning attachment zone, confirm the zone provisions and the adiabatic conductor cross-section carry the stroke action integral, build the induced bundle transient from its inductive and resistive coupling terms, ...

Use when compute the passive intermodulation a metal based antenna generates under ECSS-E-ST-20C clause 7.2.2.4.1 and the performance consequence it carries: categorize every metal junction on the radiating path as a loose contact, a pressure joint, a ferromagnetic plating, an oxidised or contaminated face or a benign welded interface, enumerate the intermodulation products of the transmit carrier set with their coefficient vector, order and frequency, isolate the products landing inside a re...

Use when establish the supplier electromagnetic compatibility programme for a spacecraft under ECSS-E-ST-20C clause 6.2.1: map each declared compatibility activity onto the programme area it serves, derive the area set the mission profile actually demands from its radio frequency payload, ordnance, magnetic sensor, crewed element and launcher exposure, list the areas and the mandatory programme elements nobody has declared yet, check every activity names an owner and is established no later t...

Use when determine the passive-intermodulation interference a development may present to a victim receive-chain under ECSS-E-ST-20C clause 7.4.2 and agree it with the customer: convert each victim band's receiver-noise-floor and permitted interference-to-noise-ratio into a tolerable interference level, refer that level to the transmit antenna port through the antenna-port-isolation, subtract the measurement-uncertainty and the design-margin, reconcile the supplier-proposed level against the c...

Use when verify that every passive-intermodulation product raised by a spacecraft transmit carrier-plan stays under its allowable level inside an own receive-band or a third-party protected-band, per ECSS-E-ST-20C clause 7.4.5: enumerate the mixing products of the carrier-plan up to a chosen order, keep the ones whose frequency lands inside a protected-band, predict each product level from a measured passive-intermodulation reference using the per-carrier order coefficients and the order roll...

Use when verify how a payload interacts with the spacecraft primary power bus under ECSS-E-ST-20C clause 5.7.6: categorize each campaign case as an inrush case, an undervoltage case or an agreed failure case, confirm it carries the mandatory case fields, compute the peak inrush current and the time it spends above the protection threshold against the trip delay, derive the transient bus sag from the load step, the bus capacitance and the control bandwidth and check it against the bus lower li...

Use when compute the dielectric loss that plastic parts add in the radio-frequency-power-path of a spacecraft antenna under ECSS-E-ST-20C clause 7.2.2.4.3: categorize each part as a radome, a lens, a matching layer, a waveguide window, a feed-support insulator or a structural item sitting outside the field, derive the attenuation constant from the relative permittivity and loss-tangent at the operating frequency, stretch the refracted path by the incidence angle, cascade the insertion-loss of...

Use when plan or audit a qualification approach that has to close radio-frequency power-handling-capability and gas-discharge-behaviour together, under ECSS-E-ST-20C clause 7.3.4: derive the qualification-power-level from maximum-operating-power and the agreed overstress-factor, categorize the evidence route behind each axis and refuse a non-standalone route with nothing supporting it, check the dwell reaches thermal steady state at the hot case, confirm the pressure sweep crossed the whole c...

Use when derive the spacecraft electrical power budget and its margin policy under ECSS-E-ST-20C clause 5.2.1: fix the budget at the phase-B milestone, allocate a maturity-dependent margin to every equipment line (flight-proven, modified, newly developed), roll the lines up into a subsystem demand figure, compare the achieved system-level margin against the margin required at the current project phase, and confirm the budget was re-reviewed at each later phase gate rather than frozen after ph...

Use when compute the available electrical power against the demand for every mission phase under ECSS-E-ST-20C clause 5.2.2.2: build each phase load list from peak power and duty cycle, separate the loads that fire together from the time-averaged ones, degrade the generated power to the phase epoch, compare availability against both the averaged and the coincident-peak demand, size the stored energy that covers any deficit, and grade the discharge depth and the phase margin against their limi...

Use when determine how each electrical power engineering requirement of ECSS-E-ST-20C clause 5.11.1 is verified: categorize the power verification item as a budget, sizing, dynamic or protection item, check the proposed method can actually produce closure evidence for that item, confirm the planned review point is not earlier than the method can mature, prove the evidence represents every mandatory worst-case power condition including end-of-life degradation, maximum eclipse, worst-case solar...

Use when compute the required design level of each radio-frequency chain element and judge the evidence offered for it, under ECSS-E-ST-20C clause 7.3.2.2: resolve the agreed power-handling margin from the element category and from how its capability is substantiated, raise the maximum operating radio-frequency power by that margin to obtain the required design level, check the declared design capability reaches it, then check the substantiation actually demonstrates it - an applied level and...