The Representation of OTA Images' Astrometric Results with WCS-SIP Coefficients
文献类型：期刊论文
| 作者 | Ping Yiding; Zhang Chen; Lu Chunlin |
| 刊名 | Acta Astronomica Sinica
 |
| 出版日期 | 2017 |
| 卷号 | 58期号:3页码:25-1-25-10 |
| 英文摘要 | Cross-matching the sources extracted from observed images with reference catalogs or earlier records is a necessary procedure for seeking the variation of sources in terms of position or brightness for the Optical Telescopes Array (OTA) survey. Knowing the celestial positions of these objects on images is prerequisite therefore. A method based on matrix manipulation is applied to transform the existing calculated plate constants of OTA images into World Coordinate System (WCS) coefficients and Simple Imaging Polynomial (SIP) coefficients, which map image positions into celestial positions so as to facilitate the mining of the FITS (Flexible Image Transport System) images of OTA. An improvement of OTA's astrometry coming with this method, as well as the discussion about some problems of OTA's astrometry are also presented. |
| 语种 | 英语 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/17363]  |
| 专题 | 中国科学院紫金山天文台 |
| 推荐引用方式 GB/T 7714 | Ping Yiding,Zhang Chen,Lu Chunlin. The Representation of OTA Images' Astrometric Results with WCS-SIP Coefficients[J]. Acta Astronomica Sinica,2017,58(3):25-1-25-10. |
| APA | Ping Yiding,Zhang Chen,&Lu Chunlin.(2017).The Representation of OTA Images' Astrometric Results with WCS-SIP Coefficients.Acta Astronomica Sinica,58(3),25-1-25-10. |
| MLA | Ping Yiding,et al."The Representation of OTA Images' Astrometric Results with WCS-SIP Coefficients".Acta Astronomica Sinica 58.3(2017):25-1-25-10. |
入库方式： OAI收割
来源：紫金山天文台
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