Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: GONG ClassicMerge: Pipeline and Product   A recent processing effort has been undertaken in order to extend the
range-of-coverage of the GONG merged dopplergrams. The GONG-Classic-era
observations have now been merged to provide, albeit at lower resolution, mrvzi
data as far back as May of 1995. The contents of this document provide an
overview of what these data look like, the processing steps used to generate
them from the original site observations, and the outcomes of a few initial
quality-assurance tests designed to validate the final merged images. Based on
these tests, the GONG project is releasing this data product to the user
community (http://nisp.nso.edu/data).

31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th