KAGRA Wiki
Information for researchers. For general information, please go to https://gwcenter.icrr.u-tokyo.ac.jp.
Contents in this page
Quick Links:
News
KSC Newsletter No.11 (2025 Jan)
New CPC submission page is ready now. (2023/10/25)
LIGO Data Grid access is available. See [kagra 03375] and here.
Application to access account for LVC resources (gw-astronomy account). See [kagra 05692] and apply from here.
Login procedure of LIGO wiki here (2024.1)
FAQ (Frequently Asked Question page) is open. The sample of Acknowledgment.
O3a, O3b information pages, and O4 pledge, YourActionRequired, Collaboration MoU, O3CommitmentForm pages are now separated.
- Coming meetings
The 13th KAGRA International Workshop (KIW 13) will be held on 18–20 December 2025 at Room B132, Science Building, Sinchon Campus, Yonsei University, Seoul, Republic of Korea Website
The 36th KAGRA F2F meeting will be held from December 15 (Mon) to 17 (Wed), 2025, at Lee-Yun Jae Hall, Room B101, Sinchon Campus, Yonsei University, Seoul, Republic of Korea Website
- Past meetings
LVK collaboration meeting, 24-27 March, 2025; Hybrid style, held at the Pullman Melbourne Albert Park Hoteltion meeting Website
The 12th KAGRA International Workshop, 26-27 May, 2025; Mainly on-site. Hosted by Shanghai Astronomical Observatory and Tongji University Website
- The 35th KAGRA Face-to-Face meeting, August, 2025; Hybrid style. Hosted by Toyama University
The 34rd KAGRA Face-to-Face meeting at ICRR, University of Tokyo, 16-18 December 2024 Website
4th FWG Open Meeting at Science Tokyo (webpage)
The 33rd KAGRA Face-to-Face meeting at Tokyo City University (Setagaya campus), 21-23 August 2024 Website
The 11th KAGRA International Workshop (KIW-11) April 16-17 2024, Open Data Workshop (ODW) April 18-20, National Museum of Natural Science, Taichung, Taiwan Website
- LIGO-Virgo-KAGRA collaboration meeting at Louisiana State University, USA, 11-14 March 2024
[1] Links
Meetings |
KAGRA collaboration meeting |
Documents |
Account and Mailing list information(KAGRA accounts(old),Mailing lists(old)) |
Task management |
redmine |
Tools |
How to upload documents to JGWDoc (Japanese, English) |
Commissioning |
Engineering Run |
KAGRA-JRPC |
Observation |
Observation top |
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Upgrades |
IFO Integration |
X-arm closing (21/12/10) |
Recovery in 2024 |
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Safety and Activity Control |
[2] KSC contents
KSC = KAGRA Scientific Congress
KSC |
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KSC newsletter |
No.11 (2025 Jan),No.10 (2023 Sep),No.9 (2022 Dec),No.8 (2021 May), No.7 (2020 April), No.6 (2019 December), No.5 (2019 August), No.4 (2019 April), No.3 (2018 December), No.2 (2018 August), No.1 (2018 April) |
Rules and Regulations |
KAGRA Data Analysis Working Group
Data Analysis Working Group |
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Data Analysis Committee |
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Working Groups |
CBC |
KAGRA Documents
Interface Control Document (ICD) (Also see Interface Control wiki)
FAQ (frequently asked questions) to the KAGRA collaboration (under editing)
KAGRA publication policy (inc. the procedure to submit for the JPS meetings)
[3] Site information
ATTENTION! No stores in Mozumi(KAGRA site area). Please bring your own food and drinks.
Access info. & accommodation
The bus service between Inotani and Mozumi has been reduced to three daytime services only starting October 1, 2025. As alternative transportation for the morning and evening services that were discontinued, the Kamioka Northern On-Demand Taxi is now in operation. (Advance reservation required.) Both the bus and the on‑demand taxi do not operate on weekends, national holidays, and from December 31 to January 3. For important notes and reservation forms for the on‑demand taxi, please refer to the Kamioka Observatory(SK) website:https://www-sk.icrr.u-tokyo.ac.jp/en/access/#tab3
Takara Taxi, our contracted taxi company, may be used only when bus and on‑demand taxi services are significantly inconvenient, such as on weekday nights or weekends/holidays.Those wishing to use this service must obtain prior approval from the KAGRA Office (office-hida@icrr.u-tokyo.ac.jp). For details, please refer to the TAXI rule in "Taxi service between Inotani and Mozumi/Kamioka (Prior permission required. Read the rule for use.)" below.
There are three transportation options between Inotani Station and Mozumi (Kamioka), depending on the day of the week and time of day.The attached PDF summarizes the transportation selection flowchart and details.Please choose the appropriate option and complete any required procedures.We kindly ask for your cooperation in using the transportation options in order of priority whenever possible. * Transportation flowchart and details
- Accommodation during KAGRA stay: ICRR Dormitories in Mozumi(Dec.13, 2021-)
- ICRR Dormitories (near KAGRA site) : Read the manual before making a reservation
Cafeteria : Light meal menu (Available to all. No reservation required but pay in advance.)
How to work at the KAGRA site?
Material of morning meeting in the Dropbox folder (in Japanese): Take a file named today's date.
Application to enter the KAGRA mine: Google Doc
How to take garbage away in KAGRA site (in Japanese): Manual
How to purchase items you need (in Japanese): Procedure
Application for requesting mine work to Kamioka-kougyo (in Japanese): Application form
1F TV meeting room at Kenkyu-to(Hokubu-kaikan): Reservation page
Reservation for Zoom
Reservation for the Koach Filters
Technical information
Table of KAGRA location (Table)
Mitaka (Tokyo) Control Room
[4] Subsystems
Subgroups
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Subgroup name |
Links |
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0 |
System Integration |
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1 |
Tunnel |
TUN |
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2 |
Facility |
FCL |
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3 |
Vacuum |
VAC |
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4 |
Cryogenics |
CRY |
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5 |
Vibration Isolation |
VIS |
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6 |
Mirror |
MIR |
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7 |
Laser |
LAS |
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8 |
Main Interferometer |
MIF |
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9 |
Input/Output Optics |
IOO |
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10 |
Auxiliary Optics Subsystem |
AOS |
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11 |
Analog Electronics |
AEL |
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12 |
Digital System |
DGS |
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13 |
Data Management |
DMG |
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14 |
Data Analysis |
DAS |
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15 |
Geophysics Interferometer |
GIF |
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16 |
Detector Characterization |
DET |
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17 |
Calibration |
CAL |
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18 |
Physical Environment Monitors |
PEM |
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18 |
Squeezing |
SQZ |
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** |
Advanced R&D |
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** |
NAOJ Test alog |
(NAOJ) |
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** |
KAGRA Stock in Shelfs |
* Some of the activities in the mine by NAOJ group are reported on NAOJ test alog.
[5] Other information
Target Sensitivity of bKAGRA
Sensitivity data can be downloaded from JGW-T1707038
Website about the KAGRA sensitivity is here.
Parameter list is here.
Others
Misc. (tools, past discussions, etc.)
Materials for Visitors Slides, Posters etc. to guide visitors of KAGRA
KAGRA CG Illustrations Stunning CG Illustrations by Rey.Hori

