CONTENTS
(Volume 85, Advances in the Astronautical Sciences, Astrodynamics 1993)

Page

FOREWORD, Robert H. Jacobs

Part I

ATTITUDE DETERMINATION AND CONTROL 1

Payload-Payload Interaction and Structure-Payload Interaction Observed on the Upper Atmosphere Research Satellite (AAS 93-551), Ansel J. Butterfield, Stanley E. Woodard 3

The Quaternion in the Kalman Filter (AAS 93-553), Malcolm D. Shuster 25

Dynamics-Based Robust Attitude Estimation (AAS 93-554), D. Joseph Mook, Juan De Peña, John L. Crassidis, Thomas J. Meyer 39

Satellite Altitude Determination with GPS (AAS 93-556), Peter J. Melvin, Alan S. Hope 59

Attitude Control of the Cassini Spacecraft during Propulsion (AAS 93-552) Abstract, Paul J. Enright 79

TOPEX ORBIT DETERMINATION AND CONTROL 81

The Role of Anomalous Satellite-Fixed Accelerations in TOPEX/Poseidon Orbit Maintenance (AAS 93-570), R. B. Frauenholz, T. W. Hamilton, B. E. Shapiro, R. S. Bhat 83

TOPEX/Poseidon Orbit Acquisition Maneuver Sequence (AAS 93-571), Ramachandra S. Bhat, Bruce E. Shapiro, Raymond B. Frauenholz 103

Accuracy Assessment of TDRSS-Based TOPEX/Poseidon Orbit Determination Solutions (AAS 93-572), C. E. Doll, G. D. Mistretta, R. C. Hart, D. H. Oza, C. M. Cox, M. Nemesure, D. T. Bolvin 123

TOPEX/poseidon Operational Orbit Determination Results using Global Positioning Satellites (AAS 93-573), Joseph R. Quinn, Peter J. Wolff 143

Preliminary Accuracy Assessment of the DORIS Tracking System on TOPEX/Poseidon (AAS 93-574), G. W. Davis, J. C. Ries, B. D. Tapley 159

Precise Station Coordinate Determination from DORIS Tracking of the TOPEX/Poseidon Satellite (AAS 93-575), M. M. Watkins, G. W. Davis, J. C. Ries 171

Automated Precision Orbit Determination for TOPEX/Poseidon with GPS (AAS 93-576), S. C. Wu, R. J. Muellerschoen, W. I. Bertiger, T. P. Yunck, Y. E. Bar-Sever, T. N. Munson 183

Precise Orbit Determination for the TOPEX/Poseidon Mission (AAS 93-577), B. H. Putney, J. A. Marshall, R. S. Nerem, F. J. Lerch, D. S. Chinn, C. C. Johnson, S. M. Klosko, S. B. Luthcke, K. E. Rachlin, T. A. Williams, R. G. Williamson, N. P. Zelensky 195

Computation and Application of the TOPEX/Poseidon Orbit Event File (AAS 93-578), David A. Spencer, Ahmed H. Salama 213

ORBIT DETERMINATION 225

Tracking Schedule Dependence of High Accuracy TDRSS-User Orbit Determination Solutions (AAS 93-600), D. H. Oza, T. L. Jones, R. J. Feiertag, C. E. Doll, G. D. Mistretta, R. C. Hart 227

Improvement of the ERS 1 Orbit Precision by using the Drag Effect on SPOT 2 (AAS 93-601), F. Nouël, M. Deleuze, C. Valorge, P. Laudet 245

Precision Orbit Determination for the Mars Observer Mission(AAS 93-602), R. S. Nerem, F. G. Lemoine, J. A. Marshall, D. D. Rowlands, D. E. Smith, J. P. Perini 255

High Precision Magellan Orbit Determination for Stereo Image Processing (AAS 93-603), P. W. Chodas, S. A. Lewicki, S. Hensley, W. C. Masters 279

Geolocation Accuracy For Hercules on STS 53 (AAS 93-604), Peter J. Melvin, Mark T. Soyka, Henry M. Pickard, Susie N. Lam, Keene H. Little, Robert R. Dasenbrock, Thomas W. Murphy, Jr. 297

An Expert System for Processing Uncorrelated Satellite Tracks (AAS 93-605), Michael Hecker 317

Orbit Determination of HITEN for Insertion into Lunar Orbit (AAS 93-606), Premkumar R. Menon, Leonard Efron, James K. Miller 331

Galileo Orbit Determination for the Earth-2 Encounter (AAS 93-607), S. Bhaskaran, F. T. Nicholson, P. H. Kallemeyn, R. J. Haw, P. G. Antreasian, G. J. Garner 343

A First Look at Orbit Determination For The Cassini Mission AAS 93-608), Anthony H. Taylor, Rodica Ionasescu, Robin M. Vaughan 355

ORBIT TRANSFER 375

Trajectory and Analysis Issues Associated with the EXCALIBUR Mission (AAS 93-632), Michael R. Dickey, M. Michael Briggs, Robert D. Culp 377

On Earth-Moon Transfer Trajectory with Gravitational Capture (AAS 93-633), Hiroshi Yamakawa, Jun’ichiro Kawaguchi, Nobuaki Ishii, Hiroki Matsuo 397

Jacobi’s Integral and DV-Earth-Gravity-Assist (DV-EGA) Trajectories (AAS 93-635), Theodore H. Sweetser 417

Piloted Mars Missions using Cryogenic and Storable Propellants (AAS 93-636), Scott A. Striepe, Prasun N. Desai 431

Capabilities, Methods, and Accuracy of DAB Ascent (AAS 93-637), David A. Baker, Sidney M. Earley 451

Constant-Thrust Orbit-Raising Transfer Charts (AAS 93-638), Salvatore Alfano, James D. Thorne 469

Optimal N-Impulse Transfer Between Coplanar Orbits (AAS 93-660), Roger A. Broucke, Antonio F. B. A. Prado 483

Fuel Optimal Trajectories using Schumacher True Anomaly Regularized Variables (AAS 93-662), Frederick H. Lutze, John A. Lawton 503

An Analytical Solution Method for Near-Optimal Continuous-Thrust Orbit Transfers (AAS 93-663), David B. Spencer, Robert D. Culp 523

Trajectory Optimization using Eccentric Longitude Formulation (AAS 93-664), Jean Albert Kechichian 543

A Three-Stage Approach to Optimal Low-Thrust Earth-Moon Trajectories (AAS 93-666), Bion L. Pierson, Craig A. Kluever 563

Enhancements to Seckspot: Convergence in the Presence of Shadowing (AAS 93-667), Mark A. Suskin, Jerry L. Horsewood 583

Trajectory Optimization for Two-Dimensional Ascent to GEO using a Laser Propulsion System (AAS 93-668), Jeng-Shing Chern, Zuu-Chang Hong, Wu-Lang Cheng, Chi-Yi Chang 603

Optimal Trajectory for Aeroassisted Orbital Transfer with Plane Change (AAS 93-631) Abstract, Xiaolong Li, Shilu Chen, Xu Yang 619

Using Sparse Nonlinear Programming to Compute Low Thrust Orbit Transfers (AAS 93-665) Abstract, John T. Betts 620

TETHERS 621

A General Formulation for N-Body Tethered Satellite System Dynamics (AAS 93-700), Mehdi Keshmiri, Arun K. Misra 623

Tethered Artificial Gravity Spacecraft Design (AAS 93-701), Carol Kowalsky, J. David Powell 645

Evaluation of Pre-Deployment Dynamic Noise on TSS-1 during Mission STS-46 (AAS 93-702), Silvio Bergamaschi, Michele Martino, Michele Smargiassi, Paolo Musi, Michael Meaney, Johannes Steyn 665

Spectral Analysis of TSS-1 Vibrations (AAS 93-703), S. Bergamaschi, F. Bonon, M. Legnami 683

Observations of Tethered Satellite System (TSS-1) Dynamics (AAS 93-704), G. E. Gullahorn, R. G. Hohlfeld, C. Bonifazi 701

The Tether Laboratory Demonstration System (TE-LAB) for Dynamics of OEDIPUS (AAS 93-705), A. M. Jablonski, F. R. Vigneron, G. Tyc, D. A. Staley, J. L. Bergmans, B. A. McClure 711

Control Law for the Deployment of SEDS-II (AAS 93-706), S. B. Bortolami, E. C. Lorenzini, C. C. Rupp, F. Angrilli 733

An Application of Tethered Satellites to Space Surveillance (AAS 93-707), Ralph G. Schinnerer 749

A Three Dimensional Hinged-Rod Model for Flexible-Elastic Aerobraking Tethers (AAS 93-730), Jordi Puig-Suari, James M. Longuski, Steven Tragesser 755

Nonlinear Dynamics and Chaos of Two-Body Tethered Satellite Systems (AAS 93-731), M. S. Nixon, A. K. Misra 775

Dynamics and Control of the Space Platform Based Tethered Satellite System (AAS 93-732), S. Pradhan, V. J. Modi, A. K. Misra 795

Spin Augmented Deployment and Retrieval of Tethered Artificial Gravity Spacecraft (AAS 93-733), Jeffrey D. Stoen, Thomas R. Kane 817

Thrusterless Vibration Control for Tethered Artificial Gravity Spacecraft (AAS 93-734), Shannon L. Thornburg, J. David Powell 839

Tether as a Satellite Attitude Stabilizer in Elliptic Orbits: A New Concept (AAS 93-735), Krishna Kumar, Atul Khosla, Kailash Chaudhary 859

Dynamics and Stability of a Spinning Tethered Spacecraft with Flexible Appendages (AAS 93-736), G. Tyc, R. P. S. Han, F. R. Vigneron, A. M. Jablonski, V. J. Modi, A. K. Misra 877

Determining Allowable Regions of Motion for a Two-Mass Tethered System (AAS 93-737), Kenneth D. Kopke, Gerald E. Suchan, Leland E. Herder 897

Part II

Page

MISSION ANALYSIS - PLANETARY 921

A Conceptual Design for Interplanetary Autonomous Navigation (AAS 93-560), T. L. Mullikin, S. H. Vaughan 923

Planetary Mission Performance for Small Solar Electric Propulsion Spacecraft (AAS 93-561), Carl G. Sauer, Jr. 935

The Venus Composite Probe—a Candidate Discovery Mission (AAS 93-562), Byron L. Swenson, Larry W. Esposito 953

Mission Design for the Mars Environmental Survey (AAS 93-563), Richard A. Cook, John B. McNamee 967

Mars Relay Satellite Orbit Design Considerations for Global Support of Robotic Surface Missions (AAS 93-564), Rolf Hastrup, Robert Cesarone, Richard Cook, Philip Knocke, Robert McOmber 983

A Brief Study of Dust Storm Encounter Probability and Dust Effect on Solar Power for the Pathfinder Mission (AAS 93-565), Darla J. German, Alan L. Friedlander 1003

Maneuver Design for the Galileo VEEGA Trajectory (AAS 93-566), Christopher L. Potts, Michael G. Wilson 1019

Design of the Galileo Satellite Tour (AAS 93-567), Aron A. Wolf, Dennis V. Byrnes 1049

Cassini Trajectory Design Description (AAS 93-568), Fernando Peralta, John C. Smith 1065

MISSION ANALYSIS - EARTH 1085

Launch Window Design and Development Process: An Historical Account for the Atmospheric Laboratory for Applications and Science 1 (Atlas 1) Mission (AAS 93-590), Mark E. Phillips, John D. Selmarten 1087

Atlas 1 Mission Design Concepts Applied to a Multi-Discipline Payload (AAS 93-591), W. S. Stewart, C. A. Tyler, T. J. Horvath, M. E. Phillips, J. D. Selmarten, L. K. Weeks, W. C. Wright, C. J. Zimmerman 1105

Orbital Operations during the EURECA Mission (AAS 93-592), R. Mugellesi Dow, J. M. Dow, S. D. Martin, R. C. A. Zandbergen, S. Kielbassa, T. Nedderhut 1117

Design of the TOPSAT Mission (AAS 93-593), Mark A. Vincent 1137

A Strategy for Maximizing the Scientific Return using a Multi-Phased Mission Design for ARGOS (AAS 93-594), Frederic J. Agardy, Robert R. Cleave 1147

The Flux on a Satellite Due to the Space Object Population (AAS 93-595), Kyle T. Alfriend, Gretchyn M. Creswell 1163

The Satellite Visibility Problem with Multiple Ground Stations (AAS 93-596), Jason Roon 1185

Optimal Low Earth Orbit Constellations for Continuous Global Coverage (AAS 93-597), Thomas J. Lang 1199

A Bird’s Eye View of a Common-Altitude, Common-Inclination Circular-Orbit Satellite Constellation (AAS 93-598), W. H. Boyce 1217

MISSION ANALYSIS - GENERAL 1231

A Historical Survey of Earth Gravitational Models Used in Astrodynamics from Sputnik and Transit to GPS and TOPEX (AAS 93-620), J. R. Vetter, R. Steve Nerem, Paul J. Cefola, H. Hagar 1233

Satellite Drag Models: Current Status and Prospects (AAS 93-621), F. A. Marcos, C. R. Baker, J. N. Bass, T. L. Killeen, R. G. Roble 1253

A High Resolution Lunar Gravity Field and Predicted Orbit Behavior (AAS 93-622), A. S. Konopliv, W. L. Sjogren, R. N. Wimberly, R. A. Cook, A. Vijayaraghavan 1275

Mars Gravity Field from Dual Satellite Observations (AAS 93-623), A. Vijayaraghavan, A. S. Konopliv, S. Demcak, M. P. Batchelder, W. L. Sjogren 1295

The Effect of Comet Outgassing and Dust Emission on the Navigation of an Orbiting Spacecraft (AAS 93-624), Connie J. Weeks 1313

Analysis of the Non-Stationary Debris Cloud Pinch Zone (AAS 93-625), Alan B. Jenkin 1331

A Feasibility Study of a Microgravity Enhancement System for Space Station Freedom (AAS 93-626), Preston S. Diamond, Robert H. Tolson 1351

Flight Envelope for Hypersonic Coasting at Constant Altitude (AAS 93-627), Jeng-Shing Chern, Zuu-Chang Hong, Yen-Hsun Chen, Shyuan-Jye Chen 1369

Micro-Gravity and Tidal Interaction: Where Engineering and Space Science Collide (AAS 93-650), W. D. Kelly 1381

A New Mission Concept for the Space Infrared Telescope Facility (AAS 93-651), Johnny H. Kwok 1401

Guidance Strategies for Solar Sails to the Moon (AAS 93-653), Satoshi Eguchi, Nobuaki Ishii, Hiroki Matsuo 1419

On the Cost of Stationing a Satellite in Orbit Around the Translunar Equilibrium Point (AAS 93-654), David Hoffman 1435

Design Procedure of Accurate Orbits in a Multi-Body Frame with a Multiple Swingby (AAS 93-655), Nobuaki Ishii, Hiroki Matsuo 1455

Beyond Aerobraking: Designing the Magellan Global Gravity Experiment (AAS 93-656), Daniel T. Lyons, William L. Sjogren, Robert E. Lock, Richard S. Austin 1471

Effect of Earth and Mars Departure Delays on Human Missions to Mars (AAS 93-657), Prasun N. Desai, Paul V. Tartabini 1485

Velocity Estimation of a Wind Driven Martin Balloon (AAS 93-658), Peter M. Kroger 1509

MISSION ANALYSIS - TRAJECTORIES 1525

Low Thrust OTV Guidance using Lyapunov Optimal Feedback Control Techniques (AAS 93-680), Marc R. Ilgen 1527

Optimal Low-Thrust Transfers Between a Class of Restricted Three-Body Trajectories (AAS 93-681), Cesar A. Ocampo, George W. Rosborough 1547

Automated Design of Delta-V Gravity-Assist Trajectories for Solar System Exploration (AAS 93-682), Moonish R. Patel, James M. Longuski 1567

Cassini 1997 VVEJGA Trajectory Launch/Arrival Space Analysis (AAS 93-684), Steven Flanagan, Fernando Peralta 1587

Tracking Galileo at Earth-2 Perigee using the Tracking and Delay Relay Satellite System (AAS 93-685), C. Edwards, J. Anderson, P. Beyer, S. Bhaskaran, J. Border, S. DiNardo, W. Folkner, R. Haw, S. Nandi, F. Nicholson, C. Ottenhoff, S. Stephens 1609

Galileo Satellite Tour: Orbit Determination (AAS 93-686), Robert J. Haw, P. H. Kallemeyn, F. T. Nicholson, R. P. Davis, J. E. Riedel 1621

Navigation Demonstrations of Precision Ranging with the Ulysses Spacecraft (AAS 93-687), T. P. McElrath, S. W. Thurman, K. E. Criddle 1635

Planet-B’s Lunar Gravity Assist Trajectory to Mars (AAS 93-688), Jun’ichiro Kawaguchi, Masafumi Kimura, Hiroshi Yamakawa, Tono Uesugi, Hiroki Matsuo, Robert W. Farquhar 1651

NAVIGATION 1665

Flight Qualification of the TDRSS Onboard Navigation System (TONS) (AAS 93-710), C. J. Gramling, R. C. Hart, J. Teles, A. C. Long, E. J. Santoro, G. M. Horstkamp, N. A. Ottenstein 1667

The Effect of a Stale Earth Pole Vector on Navigation Errors for the Space Shuttle (AAS 93-711), Russell L. Strachan 1685

Navigation of Pioneer 12 during Atmospheric Reentry at Venus (AAS 93-712), Mark S. Ryne, Neil A. Mottinger, Prem R. Menon, James K. Miller 1699

Proposed Autonomous Lunar Navigation System (AAS 93-713), Gregory H. Barton, Stanley W. Shepperd, Timothy J. Brand 1717

The Utility and Observability of Relative Navigation Equations for Two-Axis Optical Sensor Missions (AAS 93-715), Robert H. Smith 1737

Robust Roll-Modulation Guidance for an Aeroassisted Mars Mission (AAS 93-716), Nick A. Thorp, Bion L. Pierson 1749

The Determination of Navigation Information for Space Vehicle by GPS (or INS)/Equations of Motion (AAS 93-718) Abstract, Nan Ying, Chen Shilu, Lu Xuefu 1767

RENDEZVOUS 1769

An Adaptive Extended Kalman Filter for Angles-Only Tracking/Intercept Problems (AAS 93-740), David A. Cicci 1771

An Indirect Method for the Optimization of Finite-Thrust Non-Coplanar Rendezvous Maneuvers (AAS 93-741), Guido Colasurdo, Dario Pastrone 1795

Optimal Guidance and Non-Linear Estimation for Interception of Decelerating Targets (AAS 93-747), Michael E. Hough 1807

Optimal Impulsive Rendezvous of a Spacecraft Near Keplerian Orbit (AAS 93-742) Abstract, Thomas E. Carter, John Brient 1829

Closed-Form Solution of an Idealization of an Optimal Highly Eccentric Hyperbolic Rendezvous (AAS 93-743) Abstract, Thomas E. Carter 1830

Analysis of Satellite Collision Probabilities Due to Trajectory and Uncertainties in the Position/Momentum Vectors (AAS 93-748) Abstract, Kitt Christopher Carlton-Wippern 1831

Part III

Page

ATTITUDE DYNAMICS AND CONTROL 1833

Analytic Solution of Euler’s Equations of Motion for an Asymmetric Rigid Body (AAS 93-580), Panagiotis Tsiotras, James M. Longuski 1835

Numerical Investigation of Chaos in the Attitude Motion of a Gravity- Gradient Satellite (AAS 93-581), Harry A. Karasopoulos, David L. Richardson 1851

Fixed-Time Reorientations of Rigid Bodies and Lambert’s Problem (AAS 93-582), J. E. Cochran, Jr., Y-M Chang, S. Lee 1871

Minimum Time Reorientation of an Arbitrary Rigid Body (AAS 93-583), Robert M. Byers 1889

Time-Optimal Reorientation of a Rigid Spacecraft using Collocation and Nonlinear Programming (AAS 93-584), Sandra L. Scrivener, Roger C. Thompson 1905

Analytic Time-Optimal Control Synthesis of a Fourth-Order System and Maneuvers of Flexible Structures (AAS 93-585), Feiyue Li, Peter M. Bainum 1925

Near-Minimum-Time Three-Dimensional Maneuvers of Rigid and Flexible Spacecraft (AAS 93-586), Mark J. Bell, John L. Junkins 1945

Bearing Friction Revisited (AAS 93-610), Arun K. Banerjee, Thomas R. Kane 1965

An Alternative Stability Condition for Dual-Spin Spacecraft (AAS 93-611), I. Michael Ross 1979

Fourier Series and Attitude Dynamics (AAS 93-612), Antonio Elipe, Miguel Vallejo 1991

Attitude-Control for Ecliptic Solar-Sailing Deployment of the Space Radiotelescope System (AAS 93-613), Willem Stuiver, Anurag Kakaria, Taechin Yu 2003

Page

On the Attitude Control of a High Precision Space Interferometer (AAS 93-615), C. Arduini, P. Baiocco, G. Sevaston 2017

Adaptive Control and Momentum Management of Spacecraft with Unknown Parameters and Disturbances (AAS 93-616), S. Krishnan, S. R. Vadali 2027

Direct Model Reference Learning and Repetitive Control (AAS 93-617), Soo Cheol Lee, Richard W. Longman, Minh Phan 2047

FLEXIBLE BODY DYNAMICS AND CONTROL 2067

Application of the Feedback Linearization Technique to the Control of Flexible Space Structures (AAS 93-640), V. J. Modi, A. C. Ng, F. Karray 2069

Validation of Finite Dimensional Approximate Solutions for Dynamics of Distributed Parameter Systems (AAS 93-641), John L. Junkins, Sangchul Lee 2089

An Integral of Motion for Nonconservative, Constrained Systems (AAS 93-642), Arun K. Banerjee 2113

A Study of the Space Station ‘Freedom’ Response to the Disturbance Environment (AAS 93-643), A. Suleman, V. J. Modi, V. B. Venkayya 2127

On the Dynamics of Spacecraft with Flexible, Deployable and Slewing Appendages (AAS 93-644), Q. Shen, V. J. Modi 2143

Vibration Excitation Test of the LACE Satellite as Observed by a Ground-Based Laser Radar (AAS 93-645), S. Fisher, K. I. Schultz, L. W. Taylor, Jr. 2163

Neural Modeling and Control for Flexible Space Structures (AAS 93-646), Liang Jin, Madan M. Gupta, Peter N. Nikiforuk 2179

Active Vibration Isolation of a Space Platform: A Game Theoretic Approach (AAS 93-647), Norman G. Fitz-Coy, Jiann-Woei Jang 2199

On the Dynamics and Control of the Manipulator with a Deployable Arm (AAS 93-670), Itshak Marom, V. J. Modi 2211

Calibration of Tip Position during Maneuver of Space-Robotic Systems (AAS 93-671), Peter M. Bainum, Jianke Xu 2231

An Efficient Approach to Dynamics of Mobile Flexible Manipulator Systems (AAS 93-673), Yasuhiro Morita, Vinod J. Modi 2251

Control of a Flexible Space Robot Executing a Docking Maneuver (AAS 93-674), Y. Chen, L. Meirovitch 2259

A Composite Control Scheme for Joint Tracking and Active Vibration Suppression of Mobile Flexible Manipulator Systems (AAS 93-676), F. Karray, V. J. Modi, H. Mah 2283

More on the So-Called Dynamic Stiffening Effect (AAS 93-677), M. Jafar Sadigh, Arun K. Misra 2301

ORBIT DYNAMICS 2321

Encke Methods in Regularizing Variables (AAS 93-690), J. M. Ferrándiz, J. Vigo 2323

A Family of Implicit Chebyshev Methods for the Numerical Integration of First-Order Differential Equations (AAS 93-691), D. L. Richardson, J. Panovsky 2343

Recurrent Power Series in Integration of Orbits (AAS 93-692), Antonio Elipe, Martín Lara 2357

Implementing a 50x50 Gravity Field Model in an Orbit Determination System (AAS 93-693), Daniel J. Fonte, Jr., Ronald J. Proulx, Paul J. Cefola 2369

On the Elimination of First-Order Non-Trigonometric Terms in the J₂ Problem of a Hyperbolic Satellite (AAS 93-694), Luis Floría 2391

Frozen Orbit Morphology in Orlov’s Plane (AAS 93-695), Peter J. Melvin 2411

An Investigation of a Family of ‘Moon-Wrapping’ Orbits about L₂, in the Earth-Moon Restricted 3-Body Problem (AAS 93-697), Michael E. Stringer, David L. Richardson 2431

Optimally Pointed Singular Thrust-Laws for Nonlifting Spacecraft (AAS 93-698), I. Michael Ross 2441

Semianalytic Satellite Theory: Second-Order Expansions in the True Longitude L (AAS 93-720), Don A. Danielson 2457

Modeling the Effect of Ramped Thrust Profiles on Orbital Motion (AAS 93-721), Wayne D. McClain 2475

Mapping of State under Tesseral Harmonic Perturbations Between Near-Apogee Times (AAS 93-722), Peter C. Kammeyer 2487

Optimizing Ascending Node for Partial Coverage from Repeat Track Walker Constellations (AAS 93-723), Maria J. Evans, George W. Rosborough 2503

Design and Implementation of Software Algorithms for TOPEX/Poseidon Onboard Ephemeris Representations (AAS 93-724), Robert K. Leavitt, Ahmed H. Salama 2519

TOPEX/Poseidon On-Board Ephemeris Representation Procedure, Performance, and Experience (AAS 93-725), Ahmed H. Salama, Robert K. Leavitt 2535

Precision Control of Frozen, Exact Repeat Orbits (AAS 93-726), Dale C. Synnes 2549

Non-Linear Modes at Resonance (AAS 93-728), Michael E. Hough 2571

Numerical Stability Problem Encountered Modeling Large Liquid Mass in Micro-Gravity (AAS 93-750), Noel H. Hughes 2595

Solution to the Geocentric Lambert Boundary Value Problem for a Complete Force Field (AAS 93-752), James R. Wright 2611

Quaternions Formulation Versus Regularization in Numerical Orbit Computation (AAS 93-753), M. Palacios, C. Calvo 2629

Orbital Differential Correction using Sequential Least Squares Algorithm (AAS 93-754), Chung-Tung Yue 2645

Integrals of the Motion for Spacecraft Flight in a Rotating Planetary Atmosphere (AAS 93-755), Sudhakar Medepalli 2661

Preliminary Study of Height and Pointing Calibration Scenarios for Satellite Laser Altimetry of Continental Ice Sheet Topography (AAS 93-757), Michael E. Lisano, II, B. E. Schutz 2677

Three-Dimensional Optimal Reentry Trajectory and Aerodynamic Heating History of the Space Shuttle (AAS 93-756), Yan Hengyuan, Li Ying 2689

APPENDICES 2691

Publications of the American Astronautical Society 2692

Advances in the Astronautical Sciences 2693

Science and Technology Series 2699

AAS History Series 2704

INDEX 2705

Numerical Index 2707

Author Index 2717