Claude Skills by ashfordeOU

Use when determine whether the surface-material electrical-control rules of ECSS-E-ST-20-06C clause 6.1.1 apply to a spacecraft external item: categorize every item as plasma-exposed, partially-shielded or internal from its shield-coverage-fraction and ambient-plasma view, rank the orbit-regime severity of the ambient-plasma environment, screen the surface-resistivity and dielectric-thickness values that separate a controlled-conductive surface from a floating-dielectric surface, size the cha...

Use when verify that every structural and mechanical metallic part of a spacecraft is electrically bonded under ECSS-E-ST-20-06C clause 6.3.1: trace each part's bond path to the structural reference across the bonding network, add series strap and joint resistances along the lowest-resistance route, combine redundant straps in parallel, compare the effective bond resistance against its bond-category ceiling, convert a bounding discharge transient into the resistive and inductive potential the...

Use when assess the mechanical and debris consequences of a deployed tether severing from an electrical or a mechanical cause, under ECSS-E-ST-20-06C clause 10.2.7: screen every severance initiator against its own limit (conductor current-density against the fusing current-density, radiative-equilibrium strand temperature against the softening temperature, accumulated arc-erosion energy against its threshold, tension against breaking-strength, cumulative particulate-strike probability against...

Use when size the plasma-contacting surface a tether needs to carry its operating current, per ECSS-E-ST-20-06C clause 10.2.2: compute the ambient random-flux current-density from electron-density and electron-temperature, apply the orbital-motion-limited enhancement for the collector geometry — sphere, cylinder or flat-tape — at its applied bias-potential, invert that into the collecting-area the intended application demands with its sizing margin, confirm the area on record covers it, then ...

Use when determine whether the deployed-tether provisions of ECSS-E-ST-20-06C clause 10.1 attach to a spacecraft configuration: categorize each deployed or connecting element as an electrodynamic-tether, a conducting-tether, a non-conducting-tether, an inter-body connecting-cable or out-of-scope, from its deployed-length, its length-to-diameter slenderness and its conductor continuity; confirm the element spans two separated bodies; then enumerate the hazard families the applicability pulls i...

Use when compute the potentials a conducting tether develops while it is carried through a planetary magnetic-field, and grade the hazards those potentials create, per ECSS-E-ST-20-06C clause 10.2.1: derive the motional-electric-field from orbital-velocity and flux-density, project it along the deployed line for the end-to-end electromotive-force, split that force about the plasma-floating point, then band each exposed end against its arc-onset threshold, each insulated span against its withs...

Use when evaluate the large-current hazards of an electrodynamic-tether circuit under ECSS-E-ST-20-06C clause 10.2.3: categorize every current-carrying segment as tether-conductor, structural-return-path or bonding-strap, compute the ohmic voltage-drop and dissipation each carries at operating current, derive the conductor temperature-rise against its insulation rating, check bonding-joint resistance and rated-current headroom on the structural-return leg, and compare fault let-through-energy...

Use when verify that the insulation jacket of a tether stays unbroken across its service life under ECSS-E-ST-20-06C clause 10.2.4: categorize each observed defect as through-thickness (pinhole, crack, cut-through) or partial-thickness (abrasion-scuff, delamination, thermal-blister), subtract atomic-oxygen erosion and the abrasion allowance from the as-built wall to obtain the end-of-life remaining-thickness, compute the dielectric-withstand of that wall against the applied tether voltage and...

Use when bound the largest potential difference expected between the two ends of a deployed tether and validate the declared design voltage against that bound, under ECSS-E-ST-20-06C clause 10.3: take the relative plasma speed as orbital speed less the along-track corotation, take the field magnitude from a centred-dipole estimate at the orbit radius and magnetic latitude, project the induced field along the deployed line, sweep the magnetic-latitude range and the attitude envelope so the wor...

Use when verify that every metallic layer of a multi-layer-insulation blanket reaches structure through its own direct grounding-straps instead of a chained layer-to-layer route, per ECSS-E-ST-20-06C clause 6.3.3.3: resolve each layer ground-path, reject looped and daisy-chained topologies, combine the straps in parallel and add the lateral-resistance of the layer to grade the ground-path-resistance against the bonding limit, size the required strap-count from the blanket-area and the redunda...

Use when verify that the exhaust beam of an electric-propulsion thruster is neutralized by design under ECSS-E-ST-20-06C clause 11.2.2, so the space-charge potential of the platform stays low: categorize the thruster as dedicated-neutralizer, shared-neutralizer or self-neutralizing, balance emitted ion-beam-current against neutralizer-electron-current and charge-exchange-backflow, drive the residual net-emitted-current across the plasma-contact-conductance to obtain the floating-potential, ch...

Use when verify that neutral gas emitted by an electric-propulsion thruster leaves the local plasma-density too low to sustain an electrical discharge under ECSS-E-ST-20-06C clause 11.2.5: categorize every gas-emission source (beam-directed efflux, unionized-propellant, neutralizer-flow, valve-leak), propagate the plume number-density to each high-voltage-surface including the backflow region behind the exit plane, convert it to a local-gas-pressure and an electron-mean-free-path, evaluate th...

Use when verify that the electron-emitting neutralizer of an electric-propulsion unit holds emission capacity above the extracted beam-current plus the natural charging currents of the worst-case environment, under ECSS-E-ST-20-06C clause 11.2.1: compute the random-flux electron and ion collection currents from ambient plasma-density and plasma-temperature, add photoemission, secondary-electron and backscattered-electron escape currents, net them into the natural current driving the body posi...

Use when trace the stray conduction routes of a tethered system under ECSS-E-ST-20-06C clause 10.2.5: build the conduction graph from the intended tether circuit plus every parasitic route through deployment-hardware, enumerate the closed paths that bypass the intended circuit, categorize each bypass by the hardware it crosses (reel-drum, guide-roller, latch-pin, harness-shield, structure-frame), compute its end-to-end path-resistance and the shunted current fraction from the parallel divisio...

Use when verify the ambient conducted-emission background on the power-leads of an EMC setup under ECSS-E-ST-20-07C clause 5.2.2.4: confirm the unit-under-test is disconnected and replaced by a resistive dummy-load drawing a representative bus current at the declared bus voltage, confirm the line-impedance-stabilisation-network and the support-equipment stay in the graded configuration, sweep each power-lead background level against its conducted-emission-limit, categorize every frequency by ...

Use when verify the ambient radiated-emission background of an EMC facility under ECSS-E-ST-20-07C clause 5.2.2.3: confirm the baseline run had the unit-under-test unpowered while the support-equipment stayed operating behind a closed enclosure door, sweep the recorded ambient-noise-floor against the applicable radiated-emission-limit, categorize every frequency as compliant, marginal or exceeding once the required headroom is applied, flag narrowband ambient signals that must be documented, ...

Use when verify that the supplier-declared spurious-emission limits at a spacecraft antenna-port actually protect every co-located receiver under ECSS-E-ST-20-07C clause 4.2.6: normalise each declared emission-mask into ordered non-overlapping frequency-segments, confirm the mask covers every victim-receiver passband and every carrier harmonic-emission that lands in one, propagate the worst declared limit through the antenna-to-antenna-isolation to the victim antenna-port, compare that couple...

Use when maintain the three-axis dipole budget of a spacecraft magnetic moment required by ECSS-E-ST-20-07C clause 4.2.5.2: categorize every contributor as permanent-magnetization, induced-magnetization, a current-loop-moment or a compensation-moment, add the signed axis components to a nominal vehicle-dipole vector, combine the per-contributor uncertainties by root-sum-square, form the worst-case vector with a declared coverage-factor, check each axis and the resultant magnitude against the ...

Verify the bond-resistance evidence behind a spacecraft bonding schedule under ECSS-E-ST-20-07C clause 5.3.10. Use when the task is deciding which bonds owe a four-wire low-resistance measurement, setting aside the paths whose only role is electrostatic-charging control, confirming that a reading came from a current-injection pair and a separate voltage-sense pair inside the injection-current window, computing the bond resistance from the sensed voltage and the injected current, rejecting a t...

Size the bench ECSS-E-ST-20-07C clause 5.4.8.2 calls for before a harness injection run is built: derive the forward power the amplifier owes from the target current, the loop impedance and the coupling loss, the probe current rating from that current and its headroom, the monitor transfer impedance from the receiver noise floor, and the pulse generator edge from the band ceiling; normalize the declared inventory, refuse an unknown or repeated item, compare each quantity as a floor or a ceili...

Plan the warm-up and frequency-stepping steps of the bulk cable-injection susceptibility run of ECSS-E-ST-20-07C clause 5.4.8.4. Use when a harness current-injection procedure is written or graded: confirm the unit settled before any current was driven, build the stepped injection frequency list so no sub-band is stepped over, size each dwell from the response time and the monitor sampling, convert the required injection current into the forward power the calibration demands, cap the drive at...

Verify that the aim of ECSS-E-ST-20-07C clause 5.4.8.1 is actually demonstrated: confirm every required harness bundle was swept across the band with no step wider than the grid allows, take the current the bench drove against the level required at each frequency, form the drive margin in decibels, categorize each point as meeting, sitting on or short of that level, grade where a performance deviation first appeared against it, reduce every bundle to its worst frequency and name the governing...

Derive the coupling arrangement ECSS-E-ST-20-07C clause 5.4.8.3 asks for from the standard bench layout: apply each declared delta to the baseline bands, refuse an unknown delta or one that closes a band, grade harness length, harness height, both probe distances and bond resistance against those bands, confirm the monitor probe sits between the injection probe and the unit, bound their separation by the probe aperture below and a fraction of a wavelength above, compare the band ceiling with ...

Use when verify that no cable shield carries intended circuit current under ECSS-E-ST-20-07C clause 4.2.13.2: test each shielded run against the narrow exemption for a coaxial radiofrequency-feed and a coaxial high-speed-data link at or above the exemption data rate, flag a barred run whose shield is declared the return or whose dedicated-return-conductor is missing, bound the incidental current a both-end-bonded shield picks up from the parallel division between shield-resistance and return-...

Validate the coaxial calibration fixture of ECSS-E-ST-20-07C clause 5.2.8.3. Use when a current probe is calibrated against a known current flowing on a transmission-line conductor: derive the fixture characteristic-impedance from its bore, its conductor and the dielectric between them, hold that impedance to the nominal reference within a fractional allowance, report the residual mismatch as a standing-wave ratio, hold radial clearance, insertion loss and enclosure screening against their li...

Use when verify that a composite mounting plane used under a unit on electromagnetic-compatibility test reproduces the surface-resistivity of the real installation, per ECSS-E-ST-20-07C clause 5.2.3.3: reduce a two-probe bar reading, a collinear four-point-probe reading or a volume-resistivity value over laminate thickness to ohms-per-square, categorize each panel as conductive, static-dissipative or insulating, require the test panel and the flight panel to share that band and to agree withi...

Evaluate the report a direct contact discharge result reaches the reader as, under ECSS-E-ST-20-07C clause 5.4.14.5, where the generator settings, the calibration oscilloscope records and a compliance table all have to be on the page. Use when contact discharge results are drawn up or reviewed: check every settings field is filled, require an oscilloscope record for each applied level and polarity, derive the bandwidth a sub-nanosecond edge needs and de-embed the scope rise time from the trac...

Verify the discharge generator a contact-discharge test names for direct application under ECSS-E-ST-20-07C clause 5.4.14.2: compare the declared storage capacitance and discharge resistance with their nominal values and tolerances, form the time constant they produce and grade it separately because two in-band parts can still miss it, walk the exponential tail through the required waveform points, confirm the charge-voltage range reaches every required level, and bound the charging resistanc...

Plan the waveform calibration and the application steps a direct contact discharge run follows, under ECSS-E-ST-20-07C clause 5.4.14.4. Use when the run is written or reviewed: derive the nominal first peak, the thirty and sixty nanosecond currents and the rise time from each charge level, group the calibration as passed, out of tolerance or omitted, reject one older than its validity window, stretch a short interval to the one the generator recharge imposes, require enough discharges at each...

Derive the bench a direct contact discharge run stands on from the standard unit configuration, under ECSS-E-ST-20-07C clause 5.4.14.3. Use when a contact discharge arrangement is built or reviewed: confirm the generator carries the contact tip and not the air tip, apply each declared delta to the baseline bands, refuse a delta that closes one, grade discharge resistance, storage capacitance, return cable length and separation, support thickness, bond resistance and tip approach angle, derive...

Evaluate the safety margin demonstrated for critical circuits and electro-explosive device firing lines under ECSS-E-ST-20-07C clause 5.3.2. Use when induced levels have been measured on a firing line or a safety-critical circuit: convert threshold and induced level into decibels with the amplitude or power multiplier, derate the no-fire level before the comparison, apply the margin required for the circuit category, report the shortfall and the worst-case line, and hold the verification whil...

Audit the data package a discharge-injection test hands over under ECSS-E-ST-20-07C clause 5.4.13.5: confirm every generator setting that defines the applied pulse is present, build the planned point, level and polarity matrix, check each cell carries one oscilloscope record and one compliance row, catch reused capture identifiers and ambiguous duplicated cells, and confirm a calibration brackets the run inside its validity window with the amplitude holding from one end to the other. Use when...

Verify the calibration arrangement an injection probe must be set up in before discharge pulses are driven into a harness, per ECSS-E-ST-20-07C clause 5.4.13.3: compare both fixture terminations against the reflection a reference conductor tolerates, reduce the recorded calibration pulses to a mean current and a repeatability spread, derive the probe injection loss from the drive applied and the current the fixture carried, invert it into the generator setting the target calibration current n...

Determine whether the dedicated pulse generator and coaxial cabling listed for an ECSS-E-ST-20-07C clause 5.4.13.2 injection-probe discharge test can actually deliver the pulse: derive the chain bandwidth from the required rise time, convert the cable mismatch and the skin-effect attenuation into delivered amplitude, size the generator open-circuit voltage and the connector rating from the current the probe must push through its insertion impedance, then categorize every declared item as adeq...

Evaluate the arrangement that applies injected discharge pulses to a powered, operating unit under ECSS-E-ST-20-07C clause 5.4.13.4: place each injection clamp inside the distance window that drives the conductors rather than the connector shell, confirm the bundle can carry the clamp there, walk the amplitude ladder to the required level without overtesting past it, size the pulse budget over points, levels and both polarities, derive the shortest interval the generator recharge and unit set...

Use when draft, review or audit the electromagnetic-effects verification-plan anchored at ECSS-E-ST-20-07C clause 5.1.2: confirm the plan carries every mandatory section, assign each electromagnetic-compatibility requirement family an admissible verification-method, reject a method substitution that records no tailoring-justification, require every measured activity to name its facility and its equipment-under-test configuration, order each activity against the plan baseline and its closure-m...

Use when assess or audit the electromagnetic-effects verification-report anchored at ECSS-E-ST-20-07C clause 5.1.3: correct each indicated receiver reading with its antenna-factor and cable-loss terms, compute the emission-margin against the applicable limit and against the margin demanded by the function-criticality, reject a recorded outcome that contradicts its own measured margin, require an evidence-reference of the document family matching the verification-method, hold every failure or ...

Use when evaluate a spacecraft radio-frequency emitter for electromagnetic-radiation-hazard effects on ordnance, ground-crew and propellant-vapour receptors under ECSS-E-ST-20-07C clause 4.2.7 and feed the result into the product-assurance hazard-analysis: categorize each receptor family, confirm the receptor stands beyond the reactive and radiating near-field boundary before any far-field formula is trusted, compute the incident field-strength and power-flux-density at the receptor stand-off...

Use when audit the system-level electromagnetic-compatibility policy of ECSS-E-ST-20-07C clause 4.1: confirm every mandated policy element is on record - the emc-control-plan, the electromagnetic-effects-verification-plan, the grounding-and-bonding policy, the magnetic-cleanliness policy, the radiation-hazard policy and the spacecraft-charging protection programme - each carrying a named owner, an accepted release state and a baselining milestone no later than the one the programme allows, ca...

Use when verify the deviations permitted while a compatibility measurement is performed, anchored at ECSS-E-ST-20-07C clause 5.2.1: hold the antenna separation to a fractional allowance with an absolute floor, the tuned frequency to its fractional allowance, and the applied or indicated level to its decibel allowance; select the frequency-band that fixes the resolution-bandwidth, the scan-step coarseness and the dwell duration; combine the measurement-uncertainty terms as a root-sum-square ag...

Use when assess the radiation-hazard provisions required by ECSS-E-ST-20-07C clause 5.2.5.1 for an electromagnetic run that energizes high-drive radiating or high-voltage equipment: categorize each energized asset by its radiated-field and stored-energy hazard, compute the far-field-power-density reaching the operator position from the drive level and the antenna-gain, weigh it against the permissible-exposure-limit of the emitting band, derive the minimum standoff when that limit is exceeded...

Evaluate the automatic amplitude-versus-frequency presentation an emission test must display while it runs, under ECSS-E-ST-20-07C clause 5.2.9.4. Use when a facility plotting chain is configured or reviewed: confirm the plot is produced with no operator action and appears during the run rather than afterwards, check the axes really carry amplitude against frequency in recognized units, require the displayed span to cover the declared test band with the applicable limit line overlaid, derive ...

Verify that an emission measurement sweeps the complete declared frequency span required by ECSS-E-ST-20-07C clause 5.2.9.3. Use when a radiated or conducted emission run is planned or graded: merge the recorded receiver scan segments into their union, expose every sub-band the scan never visited, compute the covered fraction of the declared span, flag segments swept too fast for their resolution bandwidth to register a narrowband emission, report out-of-band excursions and redundant overlap,...

Assess every emission under ECSS-E-ST-20-07C clause 5.2.9.2. Use when a survey must be held to the bandwidth its frequency range prescribes whatever character the signal is judged to have: normalize the recorded character without letting it act, decide whether the receiver was set to the prescribed bandwidth, quantify the level shift a substitution carries, refuse an emission left out of the record on character grounds, grade every level against its limit and name the ones that must be report...

Determine the receiver bandwidth of ECSS-E-ST-20-07C clause 5.2.9.1. Use when an emission sweep over a test frequency range must be planned or audited: select the range a frequency falls in, read the bandwidth that range prescribes, hold the bandwidth a receiver was set to against it, derive the coarsest step as a fraction of that bandwidth and the shortest dwell from it, split a requested span at every range boundary, cost each segment in points and seconds, then walk an executed sweep for c...

Use when verify the interference-control provisions required for a space system or equipment exposed to electrostatic-discharge events under ECSS-E-ST-20-07C clause 4.2.4.2: categorize each event as a surface-charging-arc, an internal-charging-arc, a triboelectric-separation event or a ground-handling-event, size the arc-discharge pulse from the stored capacitance, the breakdown-voltage and the arc resistance, couple that pulse onto a victim-harness through its transfer-impedance and shield-e...

Use when verify the external-ground-connection-provisions that ECSS-E-ST-20-07C clause 4.2.11.3 requires for charge-equalization before a handling-or-mating operation: qualify each attachment point for its bond back to structure, its current-limiting bleed-resistance and its reachability in the configuration where it is used, then for every operation compute the resistance-capacitance decay of the item's stored potential, check the residual-potential after the planned dwell against the electr...

Use when verify that every unit and cable run mounted outside the main-structure envelope carries its own individual shield under ECSS-E-ST-20-07C clause 4.2.12.2: categorize each inventory item by mounting-location and kind, derive the attenuation it needs from the local field-strength and its own field-susceptibility threshold, read the declared shield's measured attenuation-versus-frequency curve at the assessment frequency, derate that curve for braid-optical-coverage and for shield-termi...

Use when verify that a tested unit is arranged in the standard laboratory configuration required by ECSS-E-ST-20-07C clause 5.2.6.1 before emission or susceptibility measurements start: categorize every bench item as tested-unit, support-equipment, interconnecting-harness or coupling-network, check the insulating-standoff height and dielectric, the setback from the reference-plane front edge, the shielded-enclosure wall clearance, the reference-plane area against the unit footprint plus perim...

Use when verify that electrical and mechanical ground-support-equipment around a spacecraft during integration-and-test leaves its electromagnetic compatibility intact under ECSS-E-ST-20-07C clause 4.2.9: categorize each item as electrical-ground-support-equipment or mechanical-ground-support-equipment, sum the bond-path segment resistances against the bond-resistance-ceiling, move each radiated-emission level to the real stand-off distance and margin-check it and every umbilical-line conduct...