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arXiv 1502.05958astro-ph.IM
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FITS中存在的重要问题限制了它在现代天文学研究中的应用

Significant problems in FITS limit its use in modern astronomical research

Brian Thomas, Tim Jenness, Frossie Economou, Perry Greenfield, Paul Hirst, David S. Berry, Erik Bray, Norman Gray, Demitri Muna James Turner, Miguel de Val-Borr… 展开作者

Brian Thomas, Tim Jenness, Frossie Economou, Perry Greenfield, Paul Hirst, David S. Berry, Erik Bray, Norman Gray, Demitri Muna James Turner, Miguel de Val-Borro, Juande Santander Vela, David Shupe, John Good, G. Bruce Berriman

摘要:

灵活的图像传输系统(FITS)标准一直是天文学的一大福音,使天文台,科学家和公众能够轻松交换天文信息。然而,FITS标准正在显示其年龄。在20世纪70年代后期开发的FITS作者为该格式做出了许多实现选择,虽然当时很常见,但现在被认为限制了其对现代数据的实用性。FITS标准的作者无法理解我们今天在天文计算中面临的挑战。我们现在面临的困难包括但不限于:必须处理范围扩大的专门数据产品类型(数据模型),更有利于数据的联网交换和存储,处理非常大的数据集,以及需要捕获复杂得多的元数据和数据关系。今天,社区中的一些成员发现这些限制中的一些(或全部)不可行,并决定继续以其他格式存储数据。这一反应应该被视为对FITS社区的警钟,以改变FITS标准,或看到其使用下降。在本文中,我们详细介绍了一些选定的重要问题,存在于FITS标准的今天。我们并不打算对这些问题提出具体的补救措施;相反,我们希望引起FITS和更大的天文计算社区对这些问题的关注,希望它能刺激解决这些问题的行动。

英文摘要:

The Flexible Image Transport System (FITS) standard has been a great boon to astronomy, allowing observatories, scientists and the public to exchange astronomical information easily. The FITS standard is, however, showing its age. Developed in the late 1970s the FITS authors made a number of implementation choices for the format that, while common at the time, are now seen to limit its utility with modern data. The authors of the FITS standard could not appreciate the challenges which we would be facing today in astronomical computing. Difficulties we now face include, but are not limited to, having to address the need to handle an expanded range of specialized data product types (data models), being more conducive to the networked exchange and storage of data, handling very large datasets and the need to capture significantly more complex metadata and data relationships. There are members of the community today who find some (or all) of these limitations unworkable, and have decided to move ahead with storing data in other formats. This reaction should be taken as a wakeup call to the FITS community to make changes in the FITS standard, or to see its usage fall. In this paper we detail some selected important problems which exist within the FITS standard today. It is not our intention to prescribe specific remedies to these issues; rather, we hope to call attention of the FITS and greater astronomical computing communities to these issues in the hopes that it will spur action to address them.

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