anomoly

Anomaly may refer to:AstronomyEccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbitFlyby anomaly, an unexpected energy increase during Earth flybys of satellitesMean anomaly, a measure of time in the study of orbital dynamicsPioneer anomaly, the observed deviation of the trajectories of various unmanned spacecraftSouth Atlantic Anomaly, the region where Earth's inner van Allen radiation belt makes its closest approach to the planet's surfaceTrue anomaly, the angle between the direction of periapsis and the current position of an object on its orbit
See more at Wikipedia.org...