Sun-Synchronous Orbit J2 Calculator
Orbital Perturbations: Model Earth $J_2$ oblateness nodal precession ($\dot{\Omega}$), apsidal rotation ($\dot{\omega}$), and solve for Sun-Synchronous Orbit (SSO) inclination ($i_{SSO}$).
Orbit Altitude & Geometry
J2 Nodal & Apsidal Precession Results
Nodal Precession ($dot{Omega}$)
-- °/day
SSO Required Inclination
-- °
Apsidal Drift Rate ($dot{omega}$)
-- °/day
Orbital Period
-- min
J2 Perturbation & Geometry Metrics
• Target Sun-Synchronous Rate ($dot{Omega}_{target}$): +0.9856°/day (360°/year)
• Semi-Latus Rectum ($p = a(1 - e^2)$): -- km
• Critical Inclination for Zero Apsidal Drift: 63.435° or 116.565°
• Sun-Synchronous Status: --
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