Design Blueprint: A Superconducting Gravimeter Sensor: Levitated-Sphere Stiffness, Acceleration Noise Floor and Drift Budget

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24147730): This paper presents a computed design for a superconducting gravimeter intended for precision gravity measurement, with its performance, resource budgets and margins derived from stated assumptions rather than asserted. The headline results are: vertical resonance frequency of the levitated sphere of 4.2 Hz; acceleration noise floor below resonance of 1.39 nGal per root hertz; mass of the levitate Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.