1. Forty Years of Development of Active Systems for Radiation Protection of Spacecraft

   • J. Christopher Sussingham
   • Seth A. Watkins
   • F. Hadley Cocks

   Original Article 23 August 2020 Pages: 165 - 175

2. Searching for Repeating Ground Track Orbits: A Systematic Approach

   • Martín Lara

   Original Article 23 August 2020 Pages: 177 - 188

3. Controlled Solar Sail Transfers to Near-Sun Orbits with Restrictions on Sail Temperature

   • V. Koblik
   • E. Polyakhova
   • A. Shmyrov

   Original Article 23 August 2020 Pages: 189 - 206

4. Satellite Constellation Design for Zonal Coverage Using Genetic Algorithms

   • T. A. Ely
   • W. A. Crossley
   • E. A. Williams

   Original Article 23 August 2020 Pages: 207 - 228

5. A Feedback Guidance Scheme for Orbital Rendezvous

   • Craig A. Kluever
   • Greg S. Tanck

   Original Article 23 August 2020 Pages: 229 - 237

6. Stability Analysis for Constrained Principal Axis Slew Maneuvers

   • Hans Seywald
   • Kyong B. Lim
   • Tobin C. Anthony

   Original Article 23 August 2020 Pages: 239 - 258

7. Fuel Optimization for Unconstrained Rotation of Spacecraft Formations

   • Randal W. Beard
   • Fred Y. Hadaegh

   Original Article 23 August 2020 Pages: 259 - 273

8. Modeling Issues Concerning Motion of the Saturnian Satellites

   • Steven G. Tragesser
   • James M. Longuski

   Original Article 23 August 2020 Pages: 275 - 294

9. Direct Determination of a Spacecraft Orbit from the Doppler Data Signature

   • Connie J. Weeks
   • Ann Buschelman
   • Rosario Sabillo

   Original Article 23 August 2020 Pages: 295 - 308

10. Mitigation of Differential Perturbations in Formation Flying Satellite Clusters

    • R. J. Sedwick
    • D. W. Miller
    • E. M. C. Kong

    Original Article 23 August 2020 Pages: 309 - 331