astrometry-data-tycho2-10-19-l software package provides Astrometry.net Tycho-2 little endian index files (60-2000), you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install astrometry-data-tycho2-10-19-l
astrometry-data-tycho2-10-19-l is installed in your system.
Make ensure the astrometry-data-tycho2-10-19-l package were installed using the commands given below,
$ sudo dpkg-query -l | grep astrometry-data-tycho2-10-19-l*
You will get with astrometry-data-tycho2-10-19-l package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Science |
| Package | astrometry-data-tycho2-10-19-l |
| Version | 02-03-16 |
| Description | Astrometry.net Tycho-2 little endian index files (60-2000) |
| Sub Section | Science |