The Geodetic Reference Antenna in Space ( GRASP ): A Mission to Enhance the Terrestrial Reference Frame Yoaz Bar-Sever1, R. Steven Nerem2, and the GRASP Team 2 Jet Propulsion Laboratory University of Colorado, Boulder 1 Terrestrial Reference Frame ( TRF ) and GRASP · TRF is fundamental to all areas of geophysics TRF · TRF are currently determined by 4 space-ground geodetic techniques: - GPS/ GNSS - ... YEB, September 2012 10 ...

Contents. planet: 5 - Jupiter satellites: J6 - Himalia : 10 total number: 10 type: absolute dates: 2002-2003 observatory: 704 - Lincoln Laboratory ETS, New Mexico Reference. ... Year of the moment of observation 2. ... Hour of right ascension (alpha, h) 5. Minute of right ascension (alpha, m) 6. ... Degree of declination (delta, deg) 8. ... Second of declination (delta, '' ) ---------------------------------------- Year alpha delta month day h m s deg ' '' with dec. ...

... Why this is interesting: reasons for which astronomers get very excited around this time, and how your help can be valued for scientific research by Dr Apostolos Christou (Tolis), Armagh Observatory . Observing times . ... A variety of observing methods are suitable for the scientific study of mutual events. ... Time . The need for accurate time information is as important as the need for a reference object. ... International Year of Astronomy, Ireland National Node . ...

... Available at http://www.hike.te.chiba-u.ac.jp/ikeda/CIE/publ/abst/15-2-86.html . ... Available at http://www.w3.org/TR/REC-CSS1-961217.html. ... HTML 4.0 Specification", D. Raggett, A. Le Hors, I. Jacobs, 8 July 1997. ... Available at ftp://ftp.internic.net/rfc/rfc1700.txt. ... Available at ftp://ds.internic.net/rfc/rfc1808.txt . ... Available at ftp://ds.internic.net/rfc/rfc2070.txt . ... Available at ftp://ds.internic.net/rfc/rfc2119.txt . ... Available at ftp://ds.internic.net/rfc/rfc2318.txt . ...

Supernova 1993J is one of the brighter Sn from the recent past. Announced in IAUC 5731 this supernova was discovered independently by several people. 1993J was found in the magnitued 6.9 galaxy M81 (aka NGC 3031) in UMa. ... SEDS SN1993J web page . ... Images of Supernova 1993J . ... Kohl Observatory image 3/30/93 ( mirror ) . ... ISN Reference image Undated . ... Dr. M. Richmond has 3 papers on his web page decicated to SN 1993J. VSNet has a nice record of the discovery of 1993J . ...

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

. Comment on J0226+3421 . A Compact Steep Spectrum (CSS) source observed with the European VLBI Network (EVN) (Dallacasa et al. (1995) and references therein). Recent redshift measurement by Willott et al. (1998). VLBApls home page . Last modified: 16 Oct 2000

... Bhattacharia, D. & van den Heuvel, E.P.J. 1991, Phys. Rep. ... Churazov, E. et al. 1994, in ``Frontiers of Space and Ground Based Astronomy", eds. W.Wamsteker et al., ... Kornilov, V.G. & Lipunov, V.M. 1983a, AZh, 60, 284 . ... van den Heuvel, E.P.J. 1983, in ``Accretion Driven Stellar X-ray Sources", Eds. Lewin, W.H.G. & van den Heuvel, E.P.J., Cambridge Univ. ... van den Heuvel, E.P.J. 1994, in ``Interacting Binaries", Eds. Shore, S.N., Livio, M., & van den Heuvel, E.P.J., Berlin, Springer, p. 442...

We present a catalogue of galaxies for which spatially resolved data on their internal kinematics have been published; there is no apriori restriction regarding their morphological type. The catalogue lists the references to the articles where the data are published, as well as a coded description of these data: observed emission (E) or absorption (A) data, optical (O) or radio (R) data, velocity (V) or velocity dispersion (D), radial profile (1) or 2D field (2). ...