... Proposing for VLBI Time at Arecibo . ... Documentation (Field System, VLBA4 terminal, Mark 5 system) . ... In 2001, the Arecibo Observatory received its hybrid VLBA-MARK IV (VLBA4) data acquisition system, and currently NAIC commits Arecibo to support VLBI observing up to a maximum of 4% of the 305-m's observing time. ... Tracking Time (h:mm) . ... The inclusion of the 305-m Arecibo radio telescope can dramatically boost the sensitivity of VLBI observations, even with its limited source tracking...

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• CIMA Auto-Observing
• ALFA Sky Angle Tracking
• CIMA Command File Observing

... April 14, 2014 . ... It writes VEX files that describe the details of an observation and are becoming the near universal format for distribution of schedules to VLBI telescopes and correlators. This manual describes how to use the program, provides extensive information on all possible inputs, and gives considerable information and advice on many aspects of scheduling VLBI observations. ... This edition of the manual corresponds to the SCHED version as indicated in the title. ... Setup Files . ...

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• Archive of VLBI Observations Majordomo List

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

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• IBIS: SolarNet Access
• FIRPO Runs
• FIRST LIGHT OF ARNICA AT TNG

... Science . ... Science Users Information > Science Publications > Science Announcements > Call for Observing Proposals for Period 94 . ... Observing Facilities . ... APEX . ... Observing with ESO Telescopes . ... Data Handling and Products . ... The Call for Proposals for observations at ESO telescopes during Period 94 (1 October 2014 - 31 March 2015) has been released. ... All technical information about the offered instruments and facilities is contained on ESO webpages that are linked from the...

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• ESO - ALMA Cycle 2 Software Update
• ALFA Ultra Deep Survey (AUDS)
• ESO - Science Announcements

... Observers Info ToO Alert ToO Details Proposal Enhancement Long Term Plan Short Term Schedule Scheduled Observations Search Scheduling Guided Tour Observation Log Browser . ... Back to Calibration Homepage EPIC response files are available for ALL observation modes. ... m11_r7_im_all_2001-04-18.rmf . ... The last observation date is given by the sta rt date of the next file in the sequence, e.g. m11_r7_im_all_2000-11-09.rmf should be used for observation dates fro m 09/11/2000 to 17/04/2001 inclusive...

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... The Wide Field Planetary Camera 2 (WFPC2) is now a mature and largely well-characterized instrument. Information already available through the WFPC2 Instrument Handbook and the HST Data Handbook is fairly complete. In this update we provide additional information obtained from recent studies of the instrument, as well as calibration plans for the WFPC2 and a short note on present and planned imaging capabilities for HST. ... Calibration: Calibration of WFPC2 continues. ...

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• Update to the COS FUV Dark Rates and Impact on ETC Calculations for Background
• Update on STIS status
• Update to the dark rates of the COS FUV segments and impact on ETC calculations

... Home aaa-logo-by-marcelo-cabrera-(fonts-traced)-updated . ... Lecture Series 2014-2015 . ... Clear Sky Chart . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Published February 15, 2015 at dimensions 1024 1024 in aaa-logo-by-marcelo-cabrera-(fonts-traced)-updated . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• aaa-logo-by-marcelo-cabrera-(fonts-traced)-updated-small ? Amateur Astronomers
• aaa-logo-by-marcelo-cabrera-(fonts-traced)-updated-smaller ? Amateur

. Home . - . Overview . Glossary . Observing . Exposure Time Calculator (ETC) . Survey processing . Pictures . Publications . - . External Links . ESO - Public Surveys . near IR surveys . DENIS . 2MASS . UKIDSS (in north) . Excel Spreadsheet (version 3 of 2007-02-15) to help PIs plan their observations . Instrument Calibration Plan (draft - v1.4) . Menu of 23/10/2012 . Page updated 2006 Nov 30 by J.P.Emerson to whom comments should be sent . [ ESO ][ VISTA Home ]

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• VISTA ETC - Exposure Time Calculator
• VISTA - Visible and Infrared Survey Telescope for Astronomy

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Hayabusa update . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Kepler helps astronomers update census of Sun-like stars | Astronomy.com
• Out-of-this-world Award 2008 update | Astronomy.com
• Dark energy update | Astronomy.com

... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade Atomic Time Update Module #07581. ... The Meade Atomic Time Update Module eliminates the need to manually enter the local (wrist watch) time on start up of the telescope prior to alignment. Plugs into the Atomic Time Update Module Port of the LNT Module Viewfinder with an included patch cord. ...

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• Meade Atomic Time Update Module - General Accessories - Accessories - Products
• Support / Software & Firmware / Firmware & StarLock Updates / Firmware &
• Products

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Spacecraft Observing Earth's Space Environment
• The Acceleration of the Aurora
• Spacecraft Observing the Sun and the Heavens above

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Sun [Oulu]
• The Sun -- History
• The Acceleration of the Aurora

... Updated 2008 December 22nd . ... Updated 2008 December 18th . ... Updated 2008 December 17th . ... Updated 2008 December 16th . ... Updated 2008 December 15th . ... Updated 2008 December 10th . ... Updated 2008 December 2nd . ... Some Videos on our Web Sites . ... Cool October . ... Updated 2008 October 31st . ... Updated 2008 October 15th . ... Updated 2008 October 10th . ... Updated 2008 October 9th . ... Updated 2008 October 8th . ... Updated 2008 October 7th . ... Updated 2008 October 2nd . ...

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• News and Updates 2002
• Web Site Updates 2006
• Latest News

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

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• Comet Ephemerides

. Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . Links . About authors . Russian pages . Last updated 6.04.2016 .

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ARCSAT Call for Proposals for Shared-Risk Observing during May-Sept 2014 Suzanne Hawley, Director and Mark Klaene, Site Manager April 18, 2014 Updated June 14, 2014 We are happy to announce that the ARCSAT upgrade project led by APO engineers Joe Huehnerhoff and Bill Ketzeback is nearly complete. ... ARCSAT proposals will be accepted as text files using the ARCSAT proposal form (available from the website) which is similar to the 3.5m proposal form. ... Remember, the time is shared-risk! ...

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• Astrophysical Research Consortium - Apache Point Observatory

IMACS MASKS FOR CHAMPLANE RUN JUNE 6-9 2005 updated (17/05/05) zip file containing 16 masks (.SMF format) replacement masks (20/05/05) zip file containing 4 masks (.SMF format) . 17, exposure time 4x30 min bright = mag Field centers taken from .SMF files: field ra(J2000) dec(J2000) POS FLIP N GC Mosaic fields covered Observed? ... Here is an observing elevation chart for this run on June 7 2005. postscript . ...

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• UPDATE of AGASC1.3 to AGASC1.4
• The AstroStat Slog Blog Archive BEHR update
• Project Tanagra

Next: GOCG Pre-Observation Products . Previous: RadioAstron Mission Element Overview . ... Observation Summary File (OSF) . GRT (Ground Radio Telescope) Schedule Files . ... How: The long-term schedulers will produce two files: GSTS-file (General Space Telescope Schedule) to be used by GOCG and LTS-file for all mission elements. ... What: The RSOG will produce schedule files for all GRTs participating in a particular observation, in the format required by each GRT. ...

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• Description of the RadioAstron project, english version
• Ground Radio Telescope (GRT) Products
• RSOG Post-Observation Products

... At 13:30 pm March 2 stars were acquired with the WUPPE detector and the focussing process had begun . ... The galaxy below, UGC 6151, is in the center of the field. ... In addition, the active galaxies NGC 4151 and NGC 1068 were done. ... Later in the day HUT made observations of Jupiter, the interacting galaxy pair NGC 6090 and the UV bright galaxy- Markarian 3. ... HUT acquired additional spectra of NGC 4151, a new spectra of NGC 4631, more data on the Cygnus Loop and a new spectra of MKN 421. ...

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• Taylor and Francis Page

... Next: FITS Checksum Verification Up: Data Models and Previous: A Proposed Convention . ... The FITSIO Subroutine Library has been available for 3 years, and has matured into a stable, full-featured interface for reading and writing FITS format files. ... The FITSIO subroutine library for reading and writing FITS files is now three years old and is used by many projects as the standard programming interface for accessing FITS format data files. ...

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• A User Friendly Planning and Scheduling Tool for SOHO/LASCO-EIT
• Remote Eavesdropping at the JCMT via the World Wide Web
• WinTICS-24 Version 2.0 and PFITS-An Integrated Telescope/CCD Control Interface