Relevant bibliographies by topics / Automated patrol telescope

Academic literature on the topic 'Automated patrol telescope'

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Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Automated patrol telescope"

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Cochrane, J. W., P. Mitchell, P. W. Payne, J. W. V. Storey, and B. L. Webster. "The automated patrol telescope." Symposium - International Astronomical Union 118 (1986): 85–86. http://dx.doi.org/10.1017/s0074180900151101.

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A new astronomical system is nearing completion at U.N.S.W. in which a charge coupled device (CCD) array detector is matched to a Schmidt telescope, with the observations completely analyzed on-line. We have modified a Baker-Nunn satellite tracking camera, with its excellent 0.5m, f/1 super-Schmidt optics, converting it into a computer-controlled equatorially-mounted astronomical telescope. The telescope is expected to be located at Siding Spring Observatory in north-western New South Wales.
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Carter, B. D., M. C. B. Ashley, C. S. Bembrick, P. W. Brooks, P. Mitchell, and J. W. V. Storey. "Astronomy with the Automated Patrol Telescope." International Astronomical Union Colloquium 148 (1995): 44–47. http://dx.doi.org/10.1017/s0252921100021667.

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AbstractThe Automated Patrol Telescope (APT) is a wide-field CCD imaging telescope operated by the University of New South Wales at Siding Spring Observatory in Australia. The optical design employed resembles that of a Schmidt, but uses a 3-element lens to achieve a wide, corrected field of view. The APT was developed by extensively modifying the optical, mechanical and electronic systems of a Baker-Nunn satellite tracking camera. Telescope motion and operation of the CCD have been placed under computer control, allowing automated observations for longterm survey and monitoring projects. The APT has 0.5 m aperture f/1 optics which produce a 5° flat field, of which a 2°×3° field is covered by the CCD currently installed. The telescope is being used for studies of stellar activity in open clusters and regions of star formation, and comet and minor planet investigations. A number of other projects for the APT are being considered, including searches for novae, supernovae in clusters of galaxies, and brown dwarfs.
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Brooks, P. W. "Preliminary Results from the Automated Patrol Telescope CCD Camera." Publications of the Astronomical Society of Australia 8, no. 04 (1990): 377–80. http://dx.doi.org/10.1017/s132335800002378x.

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Abstract The University of NSW Automated Patrol Telescope (APT), a modified 0.5 m Baker-Nunn Schmidt telescope situated at Siding Spring Observatory, Coonabarabran, Australia, was opened in June 1989. It features the unique combination of an extremely fast (f/1) optical system with a CCD (Charge-Coupled Device) camera at the prime focus, capable of both fast (50 Hz TV-rate) imaging and slow-scan integrated readout via a low noise Correlated Double Sampling amplifier. This combination of optics and detector gives a wide field (0.9° × 1.4°) suited to observing extended objects including the LMC, SMC and galaxies in the Sculptor group. First images from the APT are presented along with the results of noise, linearity and dark current measurements made to date with a 12-bit analog-to-digital converter. Results were (ADU = Analog-Digital Unit):
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Carter, B. D., C. S. Bembrick, M. C. B. Ashley, and P. Mitchell. "The university of New South Wales automated patrol telescope." Experimental Astronomy 5, no. 1-2 (March 1994): 81–85. http://dx.doi.org/10.1007/bf01583814.

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Mitchell, P., and E. Ollier. "TV Rate Readout Unit for Two-dimensional CCDs." Publications of the Astronomical Society of Australia 7, no. 1 (1987): 36–37. http://dx.doi.org/10.1017/s1323358000021792.

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AbstractA simple circuit has been designed for reading out at TV rate the two-dimensional CCD on the Automated Patrol Telescope. Because it is controlled by a programmable Cathode Ray Tube Controller integrated circuit it is very flexible and applicable to frame transfer CCDs having a wide range of formats.
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Yim, Hong-Suh, Myung-Jin Kim, Young-Ho Bae, Hong-Kyu Moon, Young-Jun Choi, Dong-Goo Roh, Jintae Park, and Bora Moon. "DEEP-South: Automated Observation Scheduling, Data Reduction and Analysis Software Subsystem." Proceedings of the International Astronomical Union 10, S318 (August 2015): 311–12. http://dx.doi.org/10.1017/s1743921315007243.

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AbstractWe started ‘DEep Ecliptic Patrol of the Southern sky’ (DEEP-South, DS) (Moon et al. 2015) in late 2012, and conducted test runs with the first Korea Microlensing Telescope Network (KMTNet) (Park et al. 2012), a 1.6 m telescope with 18k x 18k CCD stationed at CTIO in early 2015. While the primary objective of DEEP-South is the physical characterization of small Solar System bodies, it is also expected to discover a large number of such bodies, many of them previously unknown. An automated observation scheduling, data reduction and analysis software subsystem called ‘DEEP-South Scheduling and Data reduction System’ (DS SDS) is thus being designed and implemented to enable observation planning, data reduction and analysis with minimal human intervention.
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Payne, Paul. "Sky Brightness and Atmospheric Extinction at A.N.R.A.O., Parkes and Siding Spring Observatory." Publications of the Astronomical Society of Australia 6, no. 2 (1985): 182–86. http://dx.doi.org/10.1017/s1323358000018051.

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AbstractIn May 1984 site testing began for the Automated Patrol Telescope. A series of atmospheric extinction and night sky brightness measurements were made over the following year at Parkes and Siding Spring Mountain using B and V filters. Parkes revealed an extinction greater than that of Siding Spring and more prone to variation. Results for the night sky brightness indicated Parkes has a sky slightly brighter than that at Siding Spring. The paper discusses the procedures used for obtaining the results and their limitations.
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Steel, Duncan. "Asteroid Discovery Efficiencies for Telescope Systems at Siding Spring." Publications of the Astronomical Society of Australia 12, no. 2 (August 1995): 202–14. http://dx.doi.org/10.1017/s1323358000020282.

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AbstractRelative efficiencies for the discovery of Earth-crossing asteroids (ECAs) are modelled for various telescopes at Siding Spring. It is found that the narrow-field instruments—the Anglo-Australian Telescope and the 40 in and 2·3m reflectors—are not competitive in this regard for present CCD imaging systems. The UK Schmidt Telescope (UKST), if used to take short-exposure stereo pairs of photographs, would be an effective search tool, outperforming all current systems apart from the Ground-based Electro-Optical Deep Space Surveillance (GEODSS) systems now being implemented by the US Air Force for ECA searches. If a CCD mosaic were fitted to the UKST, its performance would far exceed that of any other device at Siding Spring, and it would produce ECA discoveries at a rate around 3–4 times as high as GEODSS, but at considerable expense. The most sophisticated search instrument currently in use is the University of Arizona’s Spacewatch telescope; a notable result found here is that even with its present CCD, the Automated Patrol Telescope (APT) of the University of New South Wales would be able to match or outperform Spacewatch for all ECA sizes, including ~10m objects, should this modelling be a reasonable representation of its real performance. In terms of cost-effectiveness and telescope availability, the conclusion arrived at herein is that the APT, equipped with small-pixel but large-format CCD chips of high quantum efficiency, would be an extremely effective ECA search instrument: if operated with 12 μm pixel chips covering a 4° × 4° field it might produce ECA discoveries at a rate well in excess of the combined rate for all current search programs.
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Carter, B. D., M. C. B. Ashley, Y.-S. Sun, and J. W. V. Storey. "Redesigning a Baker-Nunn Camera for CCD Imaging." Publications of the Astronomical Society of Australia 10, no. 1 (1992): 74–76. http://dx.doi.org/10.1017/s1323358000019305.

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AbstractThe University of NSW’s Automated Patrol Telescope is a modified Baker-Nunn satellite tracking camera, now used for CCD imaging of astronomical objects. The f/1 Baker-Nunn optical design gives a 30° field of view with an approximately spherical focal surface of radius ≈500 mm. While the focal plane curvature is tolerable across the 1.4° × 1.0° field of the present CCD, it becomes unacceptable when a larger CCD is used. In addition, the use of glass filters in the highly convergent beam produces intolerable spherical aberration. We present a design modification to the original Baker-Nunn which enables a 5° diameter flat field to be produced when using B, V, R or I filters. By making this modification, we plan to perform multicolour imaging, using a new large-format CCD with a 2.9° × 1.9° field of view.
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Wada, Takehiko, Munetaka Ueno, Toshikazu Ebisuzaki, and Yosuke Ohno. "A Near Infrared Survey of the LMC." Symposium - International Astronomical Union 186 (1999): 59. http://dx.doi.org/10.1017/s0074180900112264.

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We surveyed the central 3° × 6° region of the Large Magellanic Cloud (LMC) with angular resolution of 10″.0 at the J(1.25μm), H(1.65μm) and K′(2.15μm) bands. The observations were performed from Oct to Nov, 1994 at the Siding Spring Observatory. We used a 25 cm/F3.5 Newtonian telescope equipped with a 512×512 PtSi-Camera (Ueno et al. 1992). The plate scale was 4.″6 × 6.″0/pixel and the total field of view was 40.′2 × 52.′3. The system was attached onto the Automated Patrol Telescope of the University of New South Wales. The limiting magnitudes of the survey were 13.6, 11.9, and 10.0 magnitude (3σ) at the J, H, and K′ bands, respectively. The positions and the J, H, and K′ magnitudes were derived for 1599 point sources whose S/N ratio were more than four at the K′-band. The dominant components of the sources are red super giants (RSG), luminous M-type giants and AGB stars in the LMC. The distributions of RSG, luminous giants and CO line flux are spatially different from each other. This supports the idea that the position of the active star forming region has changed during the past 108 years. The detected sources are cross-identified with the IRAS Point Source Catalog. Sixty-two of 680 IRAS sources in the region spatially coincide with the detected sources and the spectrum energy distributions from 1.25μm to 100μm were derived for these 62 sources. Half of them are well described by a black body spectrum, while the others show a flat or redder spectrum. These latter sources are supposed to be stars with dust envelopes.
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Dissertations / Theses on the topic "Automated patrol telescope"

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Hidas, M??rton Gergely Physics Faculty of Science UNSW. "A search for transiting extrasolar planets with the automated patrol telescope." Awarded by:University of New South Wales. School of Physics, 2005. http://handle.unsw.edu.au/1959.4/22803.

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In the past decade some 150 planets have been detected outside our Solar System, mostly via precise radial-velocity measurements of their host stars. Using an alternative method, transit searches have recently added 6 planets to the tally, and are expected to make more significant contributions in the future. The transit method is based on the detection of the tiny, periodic dip in the apparent brightness of a star when an orbiting planet passes in front of it. It requires intensive photometric monitoring of ??? 104 stars, with a precision better than ??? 1%. The 0.5 m Automated Patrol Telescope (APT) at Siding Spring Observatory, Australia, with its wide field of view and large aperture, is ideal for this task. This combination is also somewhat unique among telescopes used in transit searches. Since 2001, the APT has been semi-dedicated to a search for extrasolar planets. In this thesis work, observing, data reduction and analysis procedures were developed for the project. A significant fraction of the initial effort was focused on reaching the required photometric precision. This was achieved by implementing a new observing technique, and robust data reduction software. In the first two years of regular observations (starting in August 2002), 8 crowded Galactic fields were monitored, with photometric precision reaching 0.2% for the brightest stars. We searched the lightcurves of the brightest stars (V <13) and selected 5 planet candidates. Follow-up photometry and spectroscopy revealed all of these to be eclipsing binary stars. To date, no planets have been detected by this project. A detailed Monte Carlo simulation of the observations, using the currently known frequency and properties of extrasolar planets, resulted in a low calculated detection rate, consistent with the lack of detections. Using this simulation, we have investigated the observational and target star/planet parameters that determine the sensitivity of transit searches. The results highlighted the factors limiting our detection rate, and allowed us to significantly improve our observing strategy. According to the simulations, we should now detect ??? 2 planets per year. This will increase by a factor of a few when a new camera, currently under construction, is installed on the APT in early 2006.
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Hamacher, Duane Willis Physics Faculty of Science UNSW. "A search for transiting extrasolar planets from the southern hemisphere." Publisher:University of New South Wales. Physics, 2008. http://handle.unsw.edu.au/1959.4/40943.

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To date, more than 300 planets orbiting stars other than our sun have been discovered using a range of observing techniques, with new discoveries occuring monthly. The work in this thesis focused on the detection of exoplanets using the transit method. Planets orbiting close to their host stars have a roughly 10 per cent chance of eclipsing (transiting) the star, with Jupiter?sized planets causing a one per cent dip in the flux of the star over a few hours. A wealth of orbital and physical information on the system can be extracted from these systems, including the planet density which is essential in constraining models of planetary formation. To detect these types of planets requires monitoring tens of thousands of stars over a period of months. To accomplish this, we conduct a wide-field survey using the 0.5-meter Automated Patrol Telescope (APT) at Siding Spring Observatory (SSO) in NSW, Australia. Once candidates were selected from the data?set, selection criteria were applied to separate the likely planet candidates from the false?positives. For this thesis, the methods and instrumentation used in attaining data and selecting planet candidates are discussed, as well as the results and analysis of the planet candidates selected from star fields observed from 2004?2007. Of the 65 planet candidates initially selected from the 25 target fields observed, only two were consistent with a planet transit. These candidates were later determined to be eclipsing binary stars based on follow up observations using the 40-inch telescope, 2.3-m telescope, and the 3.9-m Anglo-Australian Telescope, all located at SSO. Additionally, two planet candidates from the SuperWASP-North consortium were observed on the 40-inch telescope. Both proved to be eclipsing binary stars. While no planets were found, our search methods and results are consistent with successful transit surveys targeting similar fields with stars in a similar magnitude range and using similar methods.
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Book chapters on the topic "Automated patrol telescope"

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Cochrane, J. W., P. Mitchell, P. W. Payne, J. W. V. Storey, and B. L. Webster. "The Automated Patrol Telescope." In Instrumentation and Research Programmes for Small Telescopes, 85–86. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-010-9433-7_14.

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Conference papers on the topic "Automated patrol telescope"

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Grossan, Bruce, Saul Perlmutter, and Michael Ashley. "A search for gamma-ray burst optical emission with the automated patrol telescope." In GAMMA-RAY BURSTS. ASCE, 1998. http://dx.doi.org/10.1063/1.55461.

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Miziarski, Stan, Michael C. B. Ashley, Greg Smith, Sam Barden, John Dawson, Anthony Horton, Will Saunders, et al. "Big innovations in a small instrument: technical challenges in a new CCD system design for the Automated Patrol Telescope." In SPIE Astronomical Telescopes + Instrumentation, edited by Eli Atad-Ettedgui and Dietrich Lemke. SPIE, 2008. http://dx.doi.org/10.1117/12.788624.

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Bettonvil, Felix C. M. "Remote and automatic small-scale observatories: experience with an all-sky fireball patrol camera." In SPIE Astronomical Telescopes + Instrumentation, edited by Suzanne K. Ramsay, Ian S. McLean, and Hideki Takami. SPIE, 2014. http://dx.doi.org/10.1117/12.2057100.

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