Orbit Determination Analysis Operation Optimization Tool for Spiral Orbit Raising Phase and Each Phase
JAXA Supercomputer System Annual Report February 2025-January 2026
Report Number: R25EAUB0500
Subject Category: Space and Astronautical Science
- Responsible Representative: Takeshi Takashima, Project Manager, DESTINY plus Project team
- Contact Information: Takayuki Yamamoto(yamamoto.takayuki@jaxa.jp)
- Members: Kazuki Takezawa, Sho Taniguchi, Takayuki Yamamoto
Abstract
Perform Monte Carlo simulations of orbit planning and orbit determination operations during the spiral orbit raising phase of DESTINY⁺
Reference URL
Please refer to https://destiny.isas.jaxa.jp/ .
Reasons and benefits of using JAXA Supercomputer System
Parallel computation is possible, thus reducing analysis time.
Achievements of the Year
Following last fiscal year, we demonstrated the feasibility of operations during the DESTINY⁺ spiral orbit-raising phase by conducting Monte Carlo simulations of orbit planning and orbit determination operations. We evaluated required ground station pass assignments and ground station observables; assessed IES shutdown conditions and durations needed for capture operations; evaluated consistency rates between long-term and short-term station coordination; optimized parameters for orbit determination; evaluated the effectiveness of onboard orbit propagation functions; and performed activities to improve pass assignment integrity and to evaluate the logic for Y-axis inversion control. We summarized the analysis results into a report and submitted a peer-reviewed paper focusing particularly on robust orbit determination. Also, as a new development this fiscal year, we have begun optimizing and evaluating the feasibility of the timing for the trajectory correction maneuvers before DESTINY⁺'s asteroid flyby.
Fig.1: Monte Carlo simulation flow Over View
Fig.2: Difference in stability between robust orbit determination and conventional orbit determination.
Fig.3: Summary of Monte Carlo Simulation Results
Fig.4: Preliminary Analysis of Relative Orbit Control for Asteroid Flybys
Publications
- Peer-reviewed papers
Sho Taniguchi, Takayuki Yamamoto, Kazutaka Nishiyama, Tsutomu Ichikawa, Yoshihide Sugimoto, Hiroshi Takeuchi, Hiroshi Imamura, Ken Takashima, "Assessment of Orbit Determination Stability and Operational Feasibility for Spiral Orbit Ascents from Earth Gravity under DESTINY+ Mission Assumptions", Springer Asrodynamics Under peer review
- Non peer-reviewed papers
Sho Taniguchi, Takayuki Yamamoto, Tsutomu Ichikawa, Yoshihide Sugimoto, Hiroshi Takeuchi, Hiroshi Imamura, Ken Takashima,Orbit determination and verification of operational feasibility during the DESTINY+ spiral orbit raising phase.The 69th Space Science and Technology Conference, 2025, Sapporo
Usage of JSS
Computational Information
- Process Parallelization Methods: Parallelization in the process control shell
- Thread Parallelization Methods: N/A
- Number of Processes: 1 - 108
- Elapsed Time per Case: 96 Hour(s)
JSS3 Resources Used
Fraction of Usage in Total Resources*1(%): 0.02
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | CPU Resources Used(Core x Hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 0.00 | 0.00 |
| TOKI-ST | 70516.57 | 0.07 |
| TOKI-GP | 0.00 | 0.00 |
| TOKI-XM | 0.00 | 0.00 |
| TOKI-LM | 0.00 | 0.00 |
| TOKI-TST | 0.00 | 0.00 |
| TOKI-TGP | 0.00 | 0.00 |
| TOKI-TLM | 0.00 | 0.00 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 500.00 | 0.80 |
| /data and /data2 | 50000.00 | 0.33 |
| /ssd | 0.00 | 0.00 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 1.15 | 0.00 |
*1: Fraction of Usage in Total Resources: Weighted average of three resource types (Computing, File System, and Archiver).
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
ISV Software Licenses Used
| ISV Software Licenses Used(Hours) | Fraction of Usage*2(%) | |
|---|---|---|
| ISV Software Licenses(Total) | 0.00 | 0.00 |
*2: Fraction of Usage：Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report February 2025-January 2026