Software anomaly

Anomaly

[uh-nom-uh-lee]

An anomaly is any occurrence or object that is strange, unusual, or unique.

In the following particular contexts it may refer to:

Eccentric anomaly, intermediate value used to compute the position of a celestial object as a function of time
Flyby anomaly, unexpected energy increase during Earth flybys of satellites
Mean anomaly, measure of time in the study of orbital dynamics
Pioneer anomaly, observed deviation of the trajectories of various unmanned spacecraft
South Atlantic Anomaly, region where Earth's inner van Allen radiation belt makes its closest approach to the planet's surface
True anomaly, angle between the direction of periapsis and the current position of an object on its orbit

Bouguer anomaly, anomaly in gravimetry
Free-air anomaly, gravity anomaly that has been computed for latitude and corrected for elevation of the station
Gravity anomaly, difference between the observed gravity and a value predicted from a model
Iridium anomaly, very rare element in the Earth's crust
Magnetic anomaly, local variation in the Earth's magnetic field

Kursk Magnetic Anomaly, territory rich in iron ores located within Kursk Oblast, Belgorod Oblast, and Oryol Oblast
Temagami Magnetic Anomaly, large buried geologic structure in the Temagami region of Ontario, Canada

Congenital vertebral anomaly, any of several malformations of the spine in animals and infants
Collie eye anomaly, congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera
Coronary artery anomaly, congenital abnormality in the coronary anatomy of the heart
Ebstein's anomaly, congenital heart defect in which the opening of the tricuspid valve is displaced towards the right ventricle of the heart
Uhl anomaly, very rare congenital heart disease with a partial or total loss of the myocardial muscle in the right ventricle

Anomaly (physics), failure of a symmetry of a theory's classical action
Conformal anomaly, quantum phenomenon that breaks the conformal symmetry of the classical theory
Chiral anomaly, anomalous nonconservation of a chiral current
Gauge anomaly, effect of quantum mechanics that invalidates the gauge symmetry of a quantum field theory
Global anomaly, anomaly in quantum physics
Gravitational anomaly, effect of quantum mechanics that invalidates the general covariance of a theory of general relativity
Mixed anomaly, effect of quantum mechanics
Parity anomaly, anomaly associated with parity

Fortean anomaly, as in the work of Charles Fort
Spatial anomaly, broad term in Star Trek and other science fiction for any sort of extraordinary disruption in the space-time continuum
Anomaly, shortcut to hyperspace travel in Robert Heinlein's 1950s novels, today called a wormhole
Anomaly (comics), DC Comics villain
"Anomaly" (Star Trek: Enterprise), an episode of Star Trek: Enterprise
Anomaly (Primeval), time portal in TV series Primeval
Anomalies, small areas in the game S.T.A.L.K.E.R.: Shadow of Chernobyl which have various effects on the game environment
Anomaly, a bridge to another world in the book series His Dark Materials, by Philip Pullman
Phobos Anomaly, a level in Doom, Episode 1 Level 8
Deimos Anomaly, a level in Doom, Episode 2 Level 1

Anomalies (album), 2005 album by Cephalic Carnage
"Anna Molly" (word play on "anomaly"), song by Incubus from 2006 album Light Grenades
"Anomaly", song by Delta-S from 2007 album Voyage to Isis

Ararat anomaly, object on Mount Ararat claimed to be Noah's Ark
Konishi anomaly, violation of the conservation of the Noether current associated with certain transformations
Market anomaly, price distortion on a financial market
Anomaly in software, anything that differs from expectations, whether the expectations resulted from documentation, experiences or otherwise