... A full set of flatfield frames was taken with the NICMOS arrays during the System Level Thermal Vacuum test, conducted on the ground in August 1996. ... Users are encouraged to recalibrate their data with on-orbit flatfields if the pipeline calibration used thermal vacuum flatfields. Preliminary results from SMOV indicate that variations in the large scale structure of the on-orbit flatfields relative to the thermal vacuum flatfields are of the order of 1-2% in Camera 2, and up to 5% in Camera 1. ...

This service contributes to the International Service of Geomagnetic Indices (ISGI) of the IAGA . ... The Kp numbers of the previous month are available in tabular format . ... There are available also historical and current Kp and derived indices per anonoymos FTP (see below). ... U.S.A. FTP server: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/ . monthly update) . ... contains the monthly Kp / ap tables in a simple text format readable for both humans and computers (*.tab). ...

... This year SSAU provides 1429 state-funded places for admission in all kinds and directions of educational programs. ... In addition, SSAU Admission Committee notes the substantial increase in interest from the foreign applicants this year. The number of applications from foreign countries has already surpassed last year's totals - 76 applications. Based on the experience of admission campaigns of previous years, SSAU expects summer 2014 to enrol about 150 foreign students in the university. ...

... Insert date: . Day: . Month: . ... This CGI -script calculates a day of week of the given date, Julian date of Greenwich noon JD and extracts from the database indices of solar activity: Wolf number for the day W , monthly W m and yealy means W y of Wolf number for month and year of the date. The prediction of Wolf number (which was made in 1998 and, hence, lost actuality) is also presented. The database uses solar activity data got from server of National Geophysical Data Center . ...

THE RELATIVE MONTHLY MEAN SUNSPOT NUMBER ON MARCH 2016 HAS MADE Wmarch = 32.9, 54.9 ( new ) THAT GIVES FOR 80 MONTHS (2015, SEPTEMBER) DEVELOPMENT CURRENT 24 CYCLE OF SOLAR ACTIVITY THE SMOOTHED MONTHLY MEAN SUNSPOT NUMBER W*sep. = 39.6; 66.0 - (in new system ); W*aug. = 39.8; 66.3 - (in new system ); - On July 1, 2015 Centre in Brussels moved to a new system of cal- culation the relative ... Almost all the work using smooth W* have to lead to a new system, if it remains. ...

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. ...

... Begin ­ End Interval­Interval 01:35 ­ 04:05 09:30 ­ 12:05 16:00 ­ 16:50 17:00 ­ 22:10 Days Needed at This Interval 6 11 11 11 Time Constraints (Must Be Justified in the Prop osal Text) For J0251+26 (visible at LST 01:35 - 04:05): 6 x 0.75 h monthly sessions. For J1048+23 (visible at LST 09:30 - 12:05): 3 x 1 h daily sessions; 3 x 1 h weekly sessions starting 1 week after the last daily session; 5 x 1 h monthly sessions starting 1 month after the last weekly session. ...

... Final astrometric results. ... 2009MNRAS_394_1037E Informations. relative to: reference body is an occulted or eclipsed satellite . reference frame: astrometric centre of frame: topocenter for mutual occultation or heliocenter for mutual eclipse epoch of equinox: J2000 time scale: UTC reduction: from mutual occultations and eclipses coordinates: Position angle (topocentric for mutual occultation or heliocentric for mutual ... Hour of the astrometric data (UTC) 7. ...

... An international panel of experts led by NOAA and sponsored by NASA has released a new prediction for the next solar cycle. Solar Cycle 24 will peak, they say, in May 2013 with a below-average number of sunspots. ... Predicting the behavior of a sunspot cycle is fairly reliable once the cycle is well underway (about 3 years after the minimum in sunspot number occurs), but p rior to that time the predictions are less reliable. ... International Year of Astronomy, Ireland National Node . ...

. Next: Tape I/O Up: Film Hardcopy Previous: Film print queues . Depending on the number of entries, images in the colour queue will be checked and activated once per week. Development of the films may take upto two weeks after which they will be send to the user. Thus, a turn-a-round time of approximately one month must be expected when using film hardcopy. Rein Warmels . Mon Jan 22 12:06:29 MET 1996

... Also the help file was renamed the manual, formated for LaTeX and html, and to a large degree, rewritten. ... Increase maximum number of setup files to 50. ... 1995 July) . ... Also, only put pointing request in VLBA control files if this is not a DAR-only station (1995 October 4) . ... Allow in-line setup files much like the source and station catalogs. ... Allow specification of schedule input file name from main input. ... Adding SUMITEM input to allow specification of what is in the summary file...

... Organisers: Michel Balazard (CNRS, Laboratoire Poncelet) , Xavier Caruso (CNRS, Laboratoire Poncelet) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems) , Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics) . ... Number theory seminar . ... One of the goals of the semester is to convey the essential unity of the subject, especially to young mathematicians who use number theory in their research. ...

ARCSAT ID NUMBER: AS07 DESCRIPTIVE TITLE: Time Domain Studies of Transients and Variable Stars PI: Guy Stringfellow OBSERVER(S): Guy Stringfellow, CU undergrads TBD UNCERTIFIED ... CU undergrads COLLABORATORS: CONTACT INFORMATION: Guy.Stringfellow@colorado.edu 303-506-3160 cell NUMBER OF WEEKS REQUESTED: 3 TIME REQUESTED: Requires Dark time and time cadence ~monthly Run 1: July 13 (alternate: ... Based on our previous ARCSAT observations, we now have an 11-tile grid covering M31. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Image credit: Julie Thompson / Armagh Planetarium) . ... These seven entrants and their class have won a free trip to the Planetarium.€а All entries are on display in our Exhibition Area.€а A number have been included in a special Christmas trailer running before all shows in our Digital Theatre throughout December so why not check out the works by the countryтАЩs budding new artists this Christmas break at Armagh Planetarium? ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

... These are just the bare bones--just three basic ideas and rules for handling relations ("equations") involving unknown quantities whose values you are trying to find. In most calculations you try to find a number . ... To get a solution, one must replace the given equation (or equations) with others, containing the same information but cleaner in appearance. ... If you have an equation and modify both its sides in exactly the same way, what you get is also a valid equation. ...

... Sun's ecliptical positions. Explanations. Each row contains at 0h of Time Dynamical Terrestrial: month, day , day of the week, julian day number at beginning of day (only last three digits is given, add head of column to form correct number ), longitude in system of mean equinox of date (degrees, minutes, seconds ), two latitudes (the first for mean equinox of date and the second for mean epoch of year; seconds ), radius-vector (astron. units), precession in ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

Statistical Modeling of Sunspot Cycles Yaming Yu Department of Statistics, Harvard University sunspot numbers April 19, 2005 Sunspots What are they? sunspot numbers ­ Sunspots appear as dark spots on the surface of the Sun. ... April 19, 2005 Sunspot Number (SSN) Data Sunspots occur in groups. ... April 19, 2005 A Nonlinear Regression Model Model sqrt of sunspot numbers to stablize the variance: sunspot numbers Yt ind ¦ ¦¦ N 0 ё 1 t Rt 2 ¤ ¤¤ " "" " Cycle-specific parameters ! ... April 19, 2005 ...

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