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Hirabaru, Koyama, Kimura, Sekido, Takeuchi, Kondo (NICT) Lapsley, and Whitney (MIT Haystack)

e-VLBI Deployments with Research Internet. Network Engineering and NOC Sessions APAN Conference 2005 in Bangkok January 27, 2005. Hirabaru, Koyama, Kimura, Sekido, Takeuchi, Kondo (NICT) Lapsley, and Whitney (MIT Haystack). Acknowledgement. MAX Gigapop (Jerry Sobieski) TransPAC (Chris Robb)

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Hirabaru, Koyama, Kimura, Sekido, Takeuchi, Kondo (NICT) Lapsley, and Whitney (MIT Haystack)

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  1. e-VLBI Deployments with Research Internet Network Engineering and NOC SessionsAPAN Conference 2005 in Bangkok January 27, 2005 Hirabaru, Koyama, Kimura, Sekido, Takeuchi, Kondo (NICT)Lapsley, and Whitney (MIT Haystack)

  2. Acknowledgement MAX Gigapop (Jerry Sobieski) TransPAC (Chris Robb) NORDUnet (Lars Fischer) APAN Tokyo NOC (Tanaka, Hattori, Matsui) JGN II NOC (Kakinuma, Hori, Hatachi, Nakamura) NICT R&D NOC (Machizawa, Takemoto, Kitamura) Internet2 (Charles Yun) Metsahovi Radio Observatory (Jouko Ritakari) MIT Haystack (Jason SooHoo, Kevin Dudevoir)Shanghai Observatory (An Tao) JIVE (Sergei Pogrebenko) SURFnet (Erik Radius) Other many networks and institutions…

  3. Radio Telescopes Shanghai25m NICT Kashima Space Center 34m Perks 64m (right)Australia Telescope National Facility Onsala Space Observatory 20m (left) MIT Haystack 18m

  4. Large Bandwidth-Delay Product Network issue VLBI (Very Long Baseline Interferometry) • e-VLBI geographically distributed observation, interconnecting radio antennas over the world radio signal from a star delay ASTRONOMY A GEODESY B • Gigabit / real-time VLBI multi-gigabit rate sampling A/D clock A/D clock ~Gbps ~Gbps Internet d A correlator B

  5. Updates since APAN Cairns (July 2004) • SC2004 Nov. 8-11, 2004, Pittsburgh • JGN II Osaka Jan. 17-18, 2005, Osaka • Others (JIVE Dec.22, 2004, Huygens Jan. 14, 2004) • e-VLBI Data Transfers and Antennas

  6. NICT Kashima MIT Haystack SUNET Stockholm AMS APAN Tokyo Onsala Abilene e-VLBI SC2004 Network Configuration

  7. e-VLBI Demonstration in SC 2004 (Nov. 2004) MIT Haystack (Westford)GGAO (Maryland) Onsala (SE)NICT Kashima (JP) first 20 minutes every hours 512 Mbps with Haystack and GGAO 256 Mbps with all 4 stations Correlationfrom Haystack Charles Yun (I2) Kashima to Haystackvia Tokyo XP Mark 5 Alan Whitney (Haystack)

  8. JGN II Int’l (10G) Tokyo Osaka MITHaystack Abilene(10G) A JGN II (10G) 1G/2.5G 10G JGN II (1G/10G) NICTKashima B Venue LCD LCD SX SX T T GEN-B GEN-A Measure-B Measure-A T T T x4 T x4 LCD LCD #1 A B #2 e-VLBI Demonstration by NICT JGN II Symposium in Osaka January 17-18, 2005 NE ファイバー チャンネル #3 SX x2 Raid ファイバー チャンネル #4 SX x2 Raid NE (Network Emulator)

  9. e-VLBI Demonstration in JGN II Osaka (Jan. 2005) Dr. Koyama • Software Cross Correlation ~240Mbps per station • e-VLBI data transfer achieved ~700Mbps from Haystack to Osaka ~900Mbps from Kashima to Osaka 4 Apple G5 Server machines (8 CPUs in Total)

  10. Kashima-JIVE e-VLBI experiment (Dec.22, 2004) Huygens e-VLBI Preliminary Report "Jouko Ritakari" Jouko.Ritakari@hut.fi reported December 22, 2004400 Mbit/s eVLBI transfer between NICT Kashima and JIVE using Tsunami protocol. January 5, 2005 Shanghai to Kashima 1-2 Mbps for 3.8GB x4January 14, 2005 Shanghai to Kashima 40-50 Mbps No fringe detected Japan - Australia (tsunami)experiment under consideration (Australia Telescope National Facility) Possible Future e-VLBI experiment with Russia NICT Kashima shipped IP VLBI board to Russia (Lebedev Institute) Fibers are available in the nearest town.

  11. e-VLBI Data Transfer Real-time e-VLBI – flat-rate live data transfer Internet Correlation Synchronize Common e-VLBI – file transfer Carry the disk to the nearest stationto put on-line Future - multicast Correlate among many combinations concurrently to get more precise data (like a virtual huge antenna)

  12. VLBI Antenna Locations in North-East Asia Shintotsukawa 3.8m Nanshan (Urumqi) 25m70km from Urumqi Tomakomai 11m, FTTH (100M)70km from Sapporo Miyun (Beijing) 50m50km from Beijing Nobeyama 45mOC48/ATM Galaxy Mizusawa 10m 20m118km from Sendai Seoul 20mYonsei U Usuda 64m, OC48/ATM Galaxy Daejon 14mTaeduk Tsukuba 32m, OC48/ATMx2 SuperSINET 2Mbps Ulsan 20mU Ulsan Kashima 34m, 1Gx2 JGN, OC48/ATM Galaxy Jeju 20mTamna U Koganei 34m, 1Gx2 JGN, OC48/ATM Galaxy Observatory is on CSTNET at 100M Gifu 11m 3m, OC48/ATMx2 SuperSINET Iriki 20m Kagoshima 6mAira 10m Yamaguchi 32m1G, 75M SINET Sheshan (Shanghai) 25m30km from Shanghai 2Mbps Yunnan (Kunming) 3m (40m)10km from Kunming Ogasawara 20m Chichijima 10m Ishigaki 20m Legend connected not yet connected antenna under construction

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