Developping high-quality all sky far-infrared map using AKARI data

JAXA Supercomputer System Annual Report February 2024-January 2025

Report Number: R24EDU10506

Subject Category: Space and Astronautical Science

Responsible Representative: Ken Ebisawa, Professor, Department of Astrophysics, ISAS
Contact Information: Ken EBISAWA (ebisawa.ken@jaxa.jp)(ebisawa.ken@jaxa.jp)
Members: Yuji Chinone, Ken Ebisawa, Ryosuke Moriguchi, Tamaki Murokoshi, Issei Yamamura

Abstract

Combining the all-sky scanning time-seris data from the Akari Far-Infrared Surveyor with those from other all-sky survey satellites in a complementary manner, we will create a high-precision all-sky far-infrared map.

Reference URL

N/A

Reasons and benefits of using JAXA Supercomputer System

Combining large amounts of time-series data from multiple satellites to create an optimal all-sky infrared map requires a large amount of memory and CPU power, so JSS is effective.

Achievements of the Year

We were able to reproduce at JSS the analysis of the far-infrared all-sky scan data that the AKARI team had been conducting on their own analysis server. We also installed Commander, a tool for simultaneously analyzing scan data from multiple satellites, on JSS, and were ready to analyze AKARI data on Commander.

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: 10 Hour(s)

JSS3 Resources Used

Fraction of Usage in Total Resources*1(%): 0.01

Details

Please refer to System Configuration of JSS3 for the system configuration and major specifications of JSS3.

Computational Resources
System Name	CPU Resources Used (Core x Hours)	Fraction of Usage*2(%)
TOKI-SORA	0.00	0.00
TOKI-ST	0.25	0.00
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 Resources
File System Name	Storage Assigned (GiB)	Fraction of Usage*2(%)
/home	1024.00	0.69
/data and /data2	108524.00	0.52
/ssd	31724.00	1.70

Archiver Resources
Archiver Name	Storage Used (TiB)	Fraction of Usage*2(%)
J-SPACE	0.02	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 Resources
	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.