Share to: share facebook share twitter share wa share telegram print page

SciBox

SciBox
Original author(s)Teck H. Choo
Developer(s)JHU Applied Physics Laboratory
Initial release2001 (first modules)[1]
Written inJava[2]
Operating systemCross-platform
TypeMission planning and commanding system (space operations)
LicenseProprietary

SciBox is an automated, end-to-end mission planning and commanding system developed by the Johns Hopkins University Applied Physics Laboratory (APL) for spacecraft and instrument operations. It translates high-level science objectives into validated, conflict-free command sequences for payloads, spacecraft subsystems, and ground stations, and has been used operationally on missions including MESSENGER and the Mars Reconnaissance Orbiter’s CRISM instrument.[3][4][1]

Artist's rendering of NASA’s MESSENGER spacecraft at Mercury
SciBox planned and commanded the orbital science operations of MESSENGER at Mercury.[3]

Design

SciBox provides automated opportunity analysis, constraint checking, scheduling, command generation, and validation for space operations. The system derives commands directly from user requests, resolves resource conflicts, and produces uploadable sequences accompanied by machine-generated reports for review. It is equipped with ten sensors, a solar panel, a guidance, navigation, and control system, and radio-frequency transmission.[3][5]

To create a schedule, SciBox searches all available science opportunities and checks to see if observational criteria are met. For opportunities that pass, SciBox then ranks possible opportunities based on priority and weighted metrics measuring the projected quality of the data, such as signal strength, resolution, and illumination. SciBox then selects the best combination of opportunities, scheduling the opportunities from highest- to lowest-ranked until resources are exhausted.[6][7]

History and development

The Johns Hopkins University Applied Physics Laboratory began investing in SciBox in 2001. The tool was designed to autonomously handle data collection scheduling, commands, and conflict resolution, a process that is difficult and time-consuming to do manually.[6][8]

SciBox was demonstrated in scientific practice in 2001 on the polar orbiter TIMED, where it used a coincidence calculator plan co-observations.[6][9] In 2002, SciBox was extended for Cassini’s MIMI, where it was used in the JCSN planning tool that took into account potential hazards, such as sunlight and dust particles, when optimizing schedules.[6] In 2005, SciBox was used in the JMRO planning tool of the CRISM instrument on Mars Reconnaissance Orbiter.[6][1]

In 2011, SciBox was scaled to a mission-level system for MESSENGER, where it planned and commanded all orbital science observations as well as guidance-and-control operations throughout the orbital campaign, automatically generating conflict-free command sequences from prioritized science objectives.[6][9] Over four years, the system scheduled approximately 294,000 images, more than five million infrared spectra, more than six million ultraviolet/exosphere spectra, and more than 41 million laser-altimeter shots, with no commanding anomalies reported.[6]

References

  1. ^ a b c d Choo, Teck H.; Anderson, Brian J.; Bedini, Peter D.; Finnegan, Eric J.; Skura, Joseph P.; Steele, R. Joshua (2012). SCIBOX, an Integrated Instrument and Spacecraft Planning and Commanding System for the MESSENGER Mission (PDF). NASA/GSFC IPM.
  2. ^ Choo, Teck H.; Skura, Joseph P. (2004). "SciBox: A Software Library for Rapid Development of Science Operation Simulation, Planning, and Command Tools" (PDF). Johns Hopkins APL Technical Digest. 25 (2): 154–162.
  3. ^ a b c Choo, Teck H.; Murchie, Scott L.; Bedini, Peter D.; Steele, R. Joshua; Skura, Joseph P.; Nguyen, Lillian; Nair, Hari; Lucks, Michael (2014). "SciBox, an end-to-end automated science planning and commanding system". Acta Astronautica. 93: 490–496. Bibcode:2014AcAau..93..490C. doi:10.1016/j.actaastro.2012.09.011.
  4. ^ Kochte, Mark C.; Sepan, David M.; Shelton, Richard G. (5–9 May 2014). Getting the Message to MESSENGER: Overview of the Weekly Planning and Sequencing of MESSENGER Orbital Activities. SpaceOps 2014, 13th International Conference on Space Operations. Pasadena, California: American Institute of Aeronautics and Astronautics (AIAA). doi:10.2514/6.2014-1915.
  5. ^ Choo, Teck H.; Russell, Edward; Kim, Michael (25 February 2014). SciBox, a Proven Automated Planning and Commanding System (PDF). Ground System Architectures Workshop (GSAW).
  6. ^ a b c d e f g Choo, Teck H.; Berman, Alice F.; Nair, Hari; Nguyen, Lillian; Skura, Joseph P.; Steele, R. Joshua (2017). "SciBox: An Autonomous Constellation Management System" (PDF). Johns Hopkins APL Technical Digest. 33 (4): 314–322.
  7. ^ Harris, Andrew; Teil, Thibaud; Schaub, Hanspeter (2019). Spacecraft Decision-Making Autonomy Using Deep Reinforcement Learning (PDF). AAS Guidance, Navigation and Control Conference. Advances in the Astronautical Sciences. American Astronautical Society. AAS 19-447.
  8. ^ Fretz, Kristin; Perez, Ralf; Choo, Teck H.; Mirantes, Annette; Chen, Warren (9 August 2021). Efficient SmallSat Operation Using SciBox. 35th Annual AIAA/USU Conference on Small Satellites. Logan, UT.
  9. ^ a b The Cubesat Assessment and Test (CAT) Program. 35th Annual AIAA/USU Conference on Small Satellites. 2021.
Prefix: a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9

Portal di Ensiklopedia Dunia

Kembali kehalaman sebelumnya