Wheels control torque and magnetic moment of magnetic torquer are limited.
Ju-Young Du, Kyu-Hong Choi, Sanguk-Lee 1998, 'Study on the Attitude Control of Spacecraft Using Reaction Wheels', Journal of Astronomy and Space Scienceshttp://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1998/v15n1/OJOOBS_1998_v15n1_245.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)