ISO Central Secretariat approved a project for ISO/REMCO to develop a new website that could be used for more effective information sharing. committee and its other activities were also explored.
New opportunities to promote the deliverables of the. The key topics that were discussed at this year’s meeting included ways of increasing the active membership of the committee and the interactions of the committee with its organizations in liaison.
#Astrometry in python update#
The meeting report of the 39th annual ISO/REMCO meeting gives an update on the current activities of the ISO Committee for Reference Materials. NOVAS, including documentation, is available from the USNO website (). In the C edition, the ephemeris-access functions have been revised for use on 64-bit systems and for improved performance in general. The module that corrects an ITRS vector for polar motion has been modified to undo that correction upon demand. NOVAS 3.1 also adds a module to transform GCRS vectors to the ITRS the ITRS to GCRS transformation was already provided in NOVAS 3.0. Future versions will expand the functionality of the Python edition to harness the object-oriented nature of the Python language, and will implement the ability to handle large quantities of objects or observers using the array functionality in NumPy (a third-party scientific package for Python). The Python edition uses the computational code from the C edition and, currently, mimics the function calls of the C edition. NOVAS Version 3.1 introduces a Python edition alongside the Fortran and C editions. NOVAS also provides access to all of the building blocks that go into such computations. The library can supply, in one or two subroutine or function calls, the instantaneous celestial position of any star or planet in a variety of coordinate systems. NOVAS calculations are accurate at the sub-milliarcsecond level.
#Astrometry in python software#
The Naval Observatory Vector Astrometry Software (NOVAS) is a source-code library that provides common astrometric quantities and transformations.
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