Next: The STScI NICMOS Calibration Up: No Title Previous: CONICA: The high resolution . The STScI NICMOS Calibration Pipeline . Introduction . ... Dark Current Subtraction . ... Input Data . ... Scalar Background Subtraction . 2-D Background Subtraction . ... Status and Goals of the NICMOS Calibration Plan . ... Photometry . ... Photometric Performance of NICMOS . ... NICMOS Photometry. ... ST-ECF Grism Spectrum Software for NICMOS Grism Data . ... Analysis . ... STScI NICMOS Software . ...

... Searching for Far Out and Wandering Worlds . ... solar system . ... Observe the Solar System . ... Tune into the Asteroid Day press conference . ... Tour the Solar System . ... т??Trojanт?? asteroids in far reaches of solar system more common than previously thought . ... ASTEROIDS . ... Astronomers considered Trojans presence at Uranus unlikely because they thought the gravitational pull of larger neighboring planets would destabilize and expel any uranian Trojans over the age of the solar system. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Exposition des navettes : la Nasa a choisi . ... La plus ancienne navette, et celle qui a le plus voyag†й dans l'espace , sera pr†йsent†йe dans une annexe du mus†йe (le Steven Udvar-Hazy Center, en Virginie), qui expose actuellement Enterprise. ...

. Computer Ephemeris. Elements of osculating planetary orbits. Explanations. Each row contains at 0h of Time Dynamical Terrestrial of specified date in system of mean equator and ecliptic J2000.0 the ecliptic osculating elements of heliocentric orbit: inclination of orbital plane (degrees), longitude of ascending node (degrees), argument of perigelion (degrees), semimajor axis (astronomical units), mean motion (degrees per day), eccentricity (dimensionless), mean anomaly (degrees).

Circling around magnetic field lines. ... The ring current . Because positive ions and negative electrons drift in opposite directions (see drawing), that motion will create an electric current that circulates clockwise around the Earth when viewed from north. ... How then can the radiation belt and ring current arise? ... Electric fields are able to push trapped particles earthward, and unlike the purely magnetic motion described earlier, an electric field can also energize them. ...

***** ** * * * * * * C **** ****** **** **** ** *** *** * * * C C C PROGRAM GEOS C PARAMETER (MX0=200,MY0=1,MZ0=20,MCQ=1,MTR=4) COMMON /BQG/BQGM(12) /BSQ/BSQM(12) COMMON /BL0/NS,NX,NY,NZ,DX,DY,DZ,DT,T,DTF C /BLU/NZP,NPR,NST,NED,NTH,EVK,ETK,EDT,DTM,EEQ C /BPF/IPR,JPR,KPR, MPR ,LPR,MST,TPR,HPR,TZP,HZP C /BMR/NMR,KMR,LMR,MMR,XMR,YMR,ZMR,SMR(3,10) C /BLP/KPP,NPP,WAP,WAT,WAV(3),EET,EEV,EEP,EPS C /BLC/HL0,HLT ... TTT+CCC+X+Y+Z+T) RETURN;END FUNCTION FUNSV(TTT,RHH,CQ,X,Y,Z) ! ...

... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

... KTP Specifications Flatness Scratch/Dig Code Parallelism Perpendicularity Angle Tolerance AR Coating Wavefront Distortion Dimension Tolerance Clear Aperture /8 at 633nm 10/5 to MIL-O-13830A < 20 arc seconds 5 arc minutes < ± 0.5°, < ± 0.5° R < 0.2% at 1064nm and R < 1.0% at 532 nm < /4 at 633nm (W ± 0.1 mm) x (H ± 0.1 mm) x (L + 0.2 mm/- 0.1 mm) > 90% of central area Standard Products Part No. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... Future seminars . ... Long -term evolution of 27 days signal in solar activity and terrestrial magnetic indices - common features and differences ". ... The 27-day signal created by the solar rotation is reflected by the 27-day geomagnetic signal. We study the long-term evolution of the 27 days signal and compare its properties for solar and geomagnetic activity. ... We obtain that 'short' and 'long' period in the 27-days range are differently reflected in the solar and geomagnetic activity. ...

Next: RSOG Pre-Observation Products . ... Mission Elements . ... The main mission elements (ME) are: . The RSOG, based at ASC, which is responsible for the science operation of the RadioAstron Mission. ... The Main Ballistic(Navigation) Center (MBC) belonging to Lavochkin Association coordinates preparation and exchange of orbit determination and orbit reconstraction ptoducts. ... Experiment codes of five characters are used in naming GRT related files. ... RSOG . ... Corr (GTS?) ... Corr (RSOG?) ...

... Join Us for English" is a restructured and fully updated edition of the successful "Join In". This exciting course for young learners provides a motivating and enjoyable way to learn English. ... Join Us for English" is easy to use and fun for the class. ... The cou