Analysis of COMS-1 North-South Station Keeping Method

Analysis of COMS-1 North-South Station Keeping Method

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The perturbations anodized pearl price xbox caused by the Sun and the Moon are predominantly out-of-plane effects causing a change in the inclination and in the right ascension of ascending node of a geostationary satellite.Due to the change of the inclination, subsatellite latitude of the geostationary satellite has a daily variations of the same magnitude of the inclination.Therefore we need a facility to control the orbital inclination and right ascension of ascending node for maintaining the satellite position in specified subsatellite latitude boundary using thrusters.In this paper we studied North-South station keeping strategies of the COMS-1 such as Track-Back Chord Target ribavirin coupon (TBCT) method, Maximum Compensation Target (MCT) method and Minimum Fuel Target (MFT) method.We accomplished those North-South station keeping maneuvers for one year starting from December 2008.

The required velocity increments to maintain the satellite are estimated as MCT 52.6065m/s, TBCT 52.2383m/s, MFT 51.5428m/s, respectively.We demonstrated that TBCT and MFT methods are proper to North-South station keeping for COMS-1.

MFT method showed the minimum required velocity increments whereas TBCT traced narrow inclination boundary area for North-South station keeping.