Experimental results of debris orbit predictions using sparse tracking data from Mt. Stromlo

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Experimental results of debris orbit predictions using sparse tracking data from Mt. Stromlo

Sang, Jizhang / Bennett, James C. / Smith, Craig

Abstract In the last 2 years EOS Space Systems has conducted three debris tracking campaigns using its Space Debris Tracking System (SDTS) at Mt. Stromlo. The first one was an optical (passive) tracking campaign undertaken in May 2012. The second one was a laser tracking campaign in July/August 2012, and the third one was also a laser tracking campaign in April/May 2013. One of the main objectives was to assess the performance of short-term (1–2 days) debris orbit predictions (OPs) using single-station tracking data from Mt. Stromlo. This paper presents comprehensive results and analyses for the assessment of short-term OP accuracy. It shows that 1-day OP accuracy better than 20arcsec is achievable using only 2 passes of tracking data over 24h.

Highlights • Results presented on orbit prediction accuracy from sparse tracking data. • Multiple tracking campaigns considered for low-earth orbits. • Short term orbit prediction accuracy is sufficient for unaided laser ranging. • Debris ballistic coefficients are presented, useful for external comparisons. • Atmospheric mass density calibrations are tested giving better orbit predictions.