1. World Space Observatory/ UV: Status report ( materials for the presentation of Mr. Yu.Nosenko ) Mr. Yu.Nosenko ) WSO/UV is an international space observatory for carrying out astronomical observations in ultraviolet spectral range (91-350 nm). Such observations can’t be provided from the Earth surface. The WSO/UV observatory includes the telescope with primary mirror of 170 cm and scientific astronomical instruments – imaging field cameras and 3 spectrometers (resolving power ranges between 2000 and 60000). Launch of the spacecraft is presently scheduled for 2009. WSO/UV is an international space observatory for carrying out astronomical observations in ultraviolet spectral range (91-350 nm). Such observations can’t be provided from the Earth surface. The WSO/UV observatory includes the telescope with primary mirror aperture of 170 cm and scientific astronomical instruments – imaging field cameras and 3 spectrometers (resolving power ranges between 2000 and 60000). Launch of the spacecraft is presently scheduled for 2009.

2. Cosmology and galactic evolution Accretion physics Hot stars and their circumstellar matter Comparative planetary meteorology Items for the Science Core Program

3. COPERNICUS IUE ASTRON HST FUSE GALEX SUVO ? 1970 1980 1990 2000 2010 2020 WSO/UV year

4. WSO/UV mission model Telescope: 1.7 m diameter (T-170 Russian model; PSF(550 nm)  0.2 arcsec Spectrographs: primary 110 - 340 nm. (HIRDES German model) with R  5-6 x 10 4 ; as well as R  2000 (Long Slit – India?). Imaging: 115 - 340 nm with quality ~ 0.1- 0.3 arcsec (MCP based Israelian model); 2 UV Imagers: one for max. spatial resolution; one for max. sensitivity; and one Imager for visual domain High Earth Orbit (orbit around L2). Distributed Mission Operations Science Operations fully distributed at level of Nations

5. The Telescope T-170M (structural model) in Lavochkin Association, Russia

6. UV camera prototype The TAUVEX payload contains three 20 cm telescopes with photon-counting imaging detectors UV detector, external view and schematic structure

7. The WSO/UV Implementation Committee Argentina Baltic-Nordic Countries China Italy France Germany India Israel Mexico the Netherlands Poland Russia South Africa Spain UK Ukraine ESA UN J. Sahade P. Hakala Fuzhen Cheng I. Pagano M. Dennefeld N. Kappelmann J. Murthy N. Brosch L.Binette K. A. van der Hucht A.Niedzelsky B. Shustov chair P. Martinez A.I. Gomes de Castro M. Barstow N. Steshenko W. Wamsteker H. Haubold The United Nations is also participating, as is the multinational European Space Agency (ESA) on a limited advisory basis.

8. On participation of India in WSO/UV Indian astronomers expressed their interest in participation in the Project. Long Slit Spectrometer’s electronic was suggested as possible contribution of India Federal Space Agency has invited ISRO to join the project. (see letter of Mr.Polishchuk to Dr. G.Madhaven Nair of September 14, 2004) Dr. Narayanan (the Paris based representative of ISRO) participated in the WSO/UV Spectrograph meeting 7-9 December 2004, Tuebingen, Germany. Dr. Narayanan is expected to report in detail on the proceedings of this meeting and convey the conclusions and detailed proposals to ISRO to his Headquarters.

9. Conclusions  The current meeting seems to be a good opportunity to establish ways for deeper discussions on the mutual interest of Russia and India in the international Project WSO/UV

10. Principal site : http://wso.vilspa.esa.eshttp://wso.vilspa.esa.es Russia: http://www.inasan.rssi.ru/rus/WSO/index.htmlhttp://www.inasan.rssi.ru/rus/WSO/index.html UN/OOSA : http://www.seas.columbia.edu/~ah297/un- esa/wso.htmlhttp://www.seas.columbia.edu/~ah297/un- esa/wso.html Some links