Precise Orbit Determination by using MADOCA on JSS2
JAXA Supercomputer System Annual Report April 2020-March 2021
Report Number: R20ER0800
Subject Category: Space Technology
- Responsible Representative: Koichi Inoue, Space Technology Directrate I, Satellite Navigation Unit
- Contact Information: TAKIGUCHI Hiroshi(takiguchi.hiroshi@jaxa.jp)
- Members: Hiroshi Takiguchi, Sho Miyoshi
Abstract
Satellite Navigation Unit has been generating the precise orbit and clock products of GNSS satellites by using MADOCA (Multi-GNSS Advanced Demonstration tool for Orbit and Clock Analysis), and been distributing to user via network routinely. On the JSS2, we aim to realize fast computation for the long-term data analysis and simulation.
Reference URL
Please refer to 'MADOCA Products'.
Reasons and benefits of using JAXA Supercomputer System
To improve the MADOCA products accuracy, we need to do long-term data analysis. By using JSS2, we have been expecting the reduction of the data analysis time.
Achievements of the Year
In this fiscal year, we decided to postponed the plan of using JSS to next fiscal year, because of the COVID-19 state of emergency and also the renewal of JSS2 system to JSS3. Therefore, we don't have any result in this fiscal year.
We are planning to re-analysis of our MADOCA offline product by using latest MADOCA software and JSS3 in the next fiscal year.
Publications
N/A
Usage of JSS
Computational Information
- Process Parallelization Methods: N/A
- Thread Parallelization Methods: OpenMP
- Number of Processes: 1
- Elapsed Time per Case: 30 Minute(s)
Resources Used(JSS2)
Fraction of Usage in Total Resources*1(%): 0.02
Details
Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| SORA-MA | 0.00 | 0.00 |
| SORA-PP | 0.00 | 0.00 |
| SORA-LM | 0.00 | 0.00 |
| SORA-TPP | 12,323.36 | 1.16 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 100.14 | 0.09 |
| /data | 2,584.46 | 0.05 |
| /ltmp | 1,953.13 | 0.17 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.00 | 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.
Resources Used(JSS3)
Fraction of Usage in Total Resources*1(%): 0.00
Details
Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.
| System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
|---|---|---|
| TOKI-SORA | 0.00 | 0.00 |
| TOKI-RURI | 0.00 | 0.00 |
| TOKI-TRURI | 2,230.21 | 0.18 |
| File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
|---|---|---|
| /home | 100.14 | 0.07 |
| /data | 2,489.09 | 0.04 |
| /ssd | 95.37 | 0.05 |
| Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
|---|---|---|
| J-SPACE | 0.00 | 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.
JAXA Supercomputer System Annual Report April 2020-March 2021