Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Overview of initial results from the reconnaissance flyby of a Kuiper
  Belt planetesimal: 2014 MU69   The centerpiece objective of the NASA New Horizons first Kuiper Extended
Mission (KEM-1) was the close flyby of the Kuiper Belt Object KBO) 2014 MU69,
nicknamed Ultima Thule. On 1 Jan 2019 this flyby culminated, making the first
close observations of a small KBO. Initial post flyby trajectory reconstruction
indicated the spacecraft approached to within ~3500 km of MU69 at 5:33:19 UT.
Here we summarize the earliest results obtained from that successful flyby. At
the time of this submission, only 4 days of data down-link from the flyby were
available; well over an order of magnitude more data will be down-linked by the
time of this Lunar and Planetary Science Conference presentation in 2019 March.
Therefore many additional results not available at the time of this abstract
submission will be presented in this review talk.

33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg