Subsystem Mass Budget & Principal Inertia Calculator

Track Current Best Estimate (CBE) subsystem masses, ECSS 12% system margin, deployer reserve, and principal moments of inertia.

Subsystem Mass Allocation (CBE)

Primary structure & mechanismsg

EPS, solar panels & batteryg

OBC, transceiver & antennag

ADCS sensors & actuatorsg

Mission payloadg

Harness & fastenersg

Deployer mass limitg

Current Best Estimate (CBE)220 g

Mass with 12% ECSS margin246.4 g

Reserve to deployer limit+3.6 g

Principal inertia I_xx ≈ I_yy1.03 × 10⁻⁴ kg·m²