Save FITS表:关键字描述及其值太长

Question

尝试将使用astroquery检索的astropy表保存到FITS文件时出现错误。在某些情况下，它会抱怨某些关键字的描述太长。writeto()函数似乎有一个output_verify参数来避免这种问题，但我找不到如何将其传递给write()函数?它存在吗?下面是我的代码:

import astropy.units as u
from astroquery.vizier import Vizier
import astropy.coordinates as coord
from astropy.table import Table
akari_query=Vizier(columns=["S09","S18","e_S09","e_S18","q_S09","q_S18"],catalog=["II/297/irc"])
result=akari_query.query_region(coord.SkyCoord(ra=200.0, dec=10.0,unit=(u.deg, u.deg),frame='icrs'), width=[2.0*u.deg,2.0*u.deg],return_type='votable')
table=Table(result[0], masked=True)
table.write('test.fits')

返回以

结尾的长错误消息

ValueError: The keyword description with its value is too long

Answer 1

问题是table.meta['description']比您试图保存的fits文件的头所允许的长。您可以简单地将其缩短为80个字符以下的任何字符，并尝试再次写入test.fits:

table.meta['description'] = u'AKARI/IRC All-Sky Survey Point Source Catalogue v. 1.0'
table.write('test.fits')