Cosmic Background Explorer
Another reanalysis of the data by Klypin, Stukov and Skulachev in 1992 found a dipole of 3.15±0.12mK, with a direction of 11h17m±10m and -7.5°±2.5°. It placed a limit on the CMB quadrupole of formula_4 with a 95% confidence level, assuming a Harrison-Zeldovich spectrum, or formula_5 without assuming a model. The results were close to those measured by the Cosmic Background Explorer and the Tenerife Experiment.