http://astronomy.nmsu.edu/song-wiki/ 2026-04-28T09:24:41+00:00 http://astronomy.nmsu.edu/song-wiki/ http://astronomy.nmsu.edu/song-wiki/_media/wiki/logo.png text/html 2026-04-24T19:54:56+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/on_sky_testing?rev=1777060496&do=diff April 2026 A new iodine cell was installed. We implemented a shutter in the direct calibration channel. We got the repaired liquid cooled CCD back from QHY and installed it, along with the TCube Edge chiller. When revisiting spectrograph focus, the Esatto focuser would intermittently time out. As a result, it's uncertain whether the reported focus position is repeatable, e.g., after homing the focuser. Given potential repeatability issues, the focuser was just moved until acceptable images w… text/html 2026-04-24T19:48:33+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aut260424_focus1d.png&ns=test&rev=1777060113&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/ut260424_focus1d.png?w=500&amp;h=500&amp;tok=f03aa9" alt="ut260424_focus1d.png" loading="lazy" width="500" height="500" /> text/html 2026-04-24T19:48:33+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aut260424_focus2d.png&ns=test&rev=1777060113&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/ut260424_focus2d.png?w=500&amp;h=500&amp;tok=3b01d3" alt="ut260424_focus2d.png" loading="lazy" width="500" height="500" /> text/html 2026-04-24T19:36:33+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/spectrograph_systems?rev=1777059393&do=diff Spectrograph systems Computer There is a spectrograph computer, spec1m, that controls the spectrograph camera (QHY600) and the spectrograph focuser (Esatto). The computer is a OnLogic CL210-G, same as the pwi1m computer, running Windows 11. Camera text/html 2026-04-23T18:31:27+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/dates?rev=1776969087&do=diff Important dates 4/22/2026 : liquid-cooled CCD reinstalled, chiller implemented. Stage maximum velocities reduced. Iodine cell realigned 4/17/2026 : iodine cell re-aligned. Old Maestro re-installed 4/8/2026 : replacement Maestro controller installed text/html 2026-03-06T20:40:15+00:00 jasonj (jasonj@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/project_status?rev=1772829615&do=diff SONG in New Mexico Status (updated 3/2026) The SONG spectrograph is assembled and carrying out science observations at Apache Point Observatory. Major milestones: * Integration with SONG network, January 2026 * Commissioning has begun, October 2025 text/html 2026-03-06T20:38:08+00:00 jasonj (jasonj@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/observing_procedure?rev=1772829488&do=diff Observing procedure Observing is done using virtual destop on the song1m virtual machine. There should be a terminal with at least 3 tabs, running: * aposong : main control window * status : populates status window and databases * guider : process that waits for guide commands from aposong text/html 2026-03-06T20:37:45+00:00 jasonj (jasonj@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/sidebar?rev=1772829465&do=diff About * SONG Science * Project Status * Team * Meetings Operations Phase * Observing procedure * Software * Internet devices Project Development Phase (complete) Telescope systems * Planewave 1000 * Observatory structure * Telescope and observatory control * Previous NMSU 1-m telescope Instrument systems * SONG spectrograph * Focal plane unit * Fiber run * Spectrograph systems * Spectrograph assembly guide Testing and Commissioning * Important dates … text/html 2026-03-06T18:07:31+00:00 jasonj (jasonj@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=docs%3Asong-newsletter-vol-1.pdf&ns=docs&rev=1772820451&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/lib/images/fileicons/svg/pdf.svg" alt="song-newsletter-vol-1.pdf" loading="lazy" width="500" height="500" /> text/html 2026-02-06T05:05:55+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/software?rev=1770354355&do=diff Software Overview Overall software design is to control all components from a main server computer, song1m, located in the main computer room, running Linux. This communicates with the telescope/camera computer, pwi1m, and the dome computer, dome1m, via network communication; this is extendable to additional devices on additional computers. It is largely a client-server model, where the server devices are interfaced over the network through text/html 2026-02-04T22:20:16+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_433000_438000.png&ns=test&rev=1770243616&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_433000_438000.png?w=500&amp;h=500&amp;tok=d77df7" alt="specfoc_433000_438000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_434500.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_434500.png?w=500&amp;h=500&amp;tok=648968" alt="specfoc_434500.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_435000.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_435000.png?w=500&amp;h=500&amp;tok=5aa00e" alt="specfoc_435000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_433000.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_433000.png?w=500&amp;h=500&amp;tok=df3bfd" alt="specfoc_433000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_433500.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_433500.png?w=500&amp;h=500&amp;tok=0bda55" alt="specfoc_433500.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_434000.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_434000.png?w=500&amp;h=500&amp;tok=c509e5" alt="specfoc_434000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_438000.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_438000.png?w=500&amp;h=500&amp;tok=fb122a" alt="specfoc_438000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_437500.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_437500.png?w=500&amp;h=500&amp;tok=2e839d" alt="specfoc_437500.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_436000.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_436000.png?w=500&amp;h=500&amp;tok=9e84b6" alt="specfoc_436000.png" loading="lazy" width="500" height="500" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_436500.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_436500.png?w=500&amp;h=500&amp;tok=37b9d4" alt="specfoc_436500.png" loading="lazy" width="500" height="500" />