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38 results for “CCD”
Fifth U.S. Naval Observatory CCD Astrograph Catalog (UCAC5) ConeSearch
New astrometric reductions of the US Naval Observatory CCD Astrograph Catalog (UCAC) all-sky observations were performed from first principles using the TGAS stars in the 8 to 11 magnitude range as reference star catalog. Significant improvements in the astrometric solutions were obtained and the UCAC5 catalog of mean positions at a mean epoch near 2001 was generated. By combining UCAC5 with Gaia DR1 data new proper motions on the Gaia coordinate system for over 107 million stars were obtained with typical accuracies of 1 to 2 mas/yr (R = 11 to 15 mag), and about 5 mas/yr at 16th mag. Proper motions of most TGAS stars are improved over their Gaia data and the precision level of TGAS proper motions is extended to many millions more, fainter stars. External comparisons were made using stellar cluster fields and extragalactic sources. The TGAS data allow us to derive the limiting precision of the UCAC x,y data, which is significantly better than 1/100 pixel. A mirror of UCAC5 exists in the MAST holdings and is thus available as a cone search.All available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html.
EARTH BASED CCD OBSERVATIONS V1.0
This data set presents images of 26P/Grigg-Skjellerup obtained by various observers at several ground-based observatories using CCD instruments. These data have not been through the full PDS review process.
CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from UH were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from ESO were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
CCD IMAGES OF 19P/BORRELLY, 1987-2002
This data set presents images and photometry of comet 19P/Borrelly 1 obtained by Karen Meech over 20 nights during the period 1987-08-21 to 2002-02-03. These data were not of sufficient quality to be reviewed or formally ingested.
CTIO CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from CTIO were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
The Fifth U.S. Naval Observatory CCD Astrograph Catalog
The US Naval Observatory (USNO) has a long history of providing accurate astrometric data for millions of stars from their own observations plus other data. The USNO CCD Astrograph Catalog (UCAC) project utiized the "redlens" 20 cm aperture astrograph in an all-sky observing program between 1997 and 2004 (CTIO in the south, NOFS in the north) with a limiting magnitude of about R = 16.5. The previous release, UCAC4, became available in 2012. The 1st Gaia data release provides proper motions for only about 2 million stars (TGAS subset of the Tycho-2 stars) in the mainly 6 to 11.5 magnitude range. Gaia DR2 which will contain proper motions of about a billion stars is scheduled for release in April 2018. In the meantime the astronomical community would benefit from proper motions of millions of stars fainter than the Tycho-2 limit, if a substantial improvement in precision and accuraccy could be made beyond what was available in the pre-Gaia era. Re-reduction of UCAC + combine with Gaia DR1 provides proper motions for over 107 million stars on the 1 to 5 mas/yr level, strongly depending on magnitude. UCAC observations (mean epoch 2001) provide positions with 10 to 70 mas precision, and about 14 years of epoch difference to Gaia DR1.
The effects of sulforaphane treatment on the expression of microRNAs in Caco-2 and CCD-841 cells
GEO Series GSE89363. Homo sapiens. 16 samples. Type: Non-coding RNA profiling by high throughput sequencing.
CCD-based melt pool annotation inLW-DED
<p>Melt pool images with related annotations in LW-DED processes with Stainless Steel (SS) and low carbon steel (S355) substrates and Inconel 625 wire material are provided for instance segmentation methods.</p> <p>The annotation of all images in the dataset was carried out utilizing the "labelme" library, which is a Python package. This library offers an image annotation tool and various functionalities for reading, writing, and converting the resulting annotations in JSON format.</p>
LICK1M SR CCD-CAM RESAMPLED RING OCCULTATION V1.0
not applicable
DNA methylation profiling for CCD-18Co cells stably transfected with an artificial P16 DNA methyltransferase (P16-Dnmt)
GEO Series GSE111505. Homo sapiens. 4 samples. Type: Methylation profiling by array.
Transcriptomic profiles in dental pulp cells from one CCD patient with allelic RUNX2 deletion and one sex-age matched unaffected individual.
GEO Series GSE104527. Homo sapiens. 2 samples. Type: Expression profiling by high throughput sequencing.
CTIO CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from CTIO were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
EARTH BASED CCD OBSERVATIONS V1.0
This data set presents images of 26P/Grigg-Skjellerup obtained by various observers at several ground-based observatories using CCD instruments. These data have not been through the full PDS review process.
CCD IMAGES OF 19P/BORRELLY, 1987-2002
This data set presents images and photometry of comet 19P/Borrelly 1 obtained by Karen Meech over 20 nights during the period 1987-08-21 to 2002-02-03. These data were not of sufficient quality to be reviewed or formally ingested.
CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from ESO were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
CCD OBSERVATIONS V1.0
Charged Coupled Device (CCD) cameras from UH were used by groups to observe the outburst of comet Halley using a variety of telescopes and chip sets.
LICK1M SR CCD-CAM RESAMPLED RING OCCULTATION V1.0
not applicable
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