http://astronomy.nmsu.edu/song-wiki/ 2026-06-13T20:08:53+00:00 http://astronomy.nmsu.edu/song-wiki/ http://astronomy.nmsu.edu/song-wiki/_media/wiki/logo.png text/html 2026-06-03T15:21:15+00:00 jaklus (jaklus@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/focal_plane_unit?rev=1780500075&do=diff Focal Plane Unit The focal plane unit consists of a heated for wavelength calibration, an acqusition/guide camera for placing and keeping stars on the 50 micron spectrograph fiber, and a calibration channel for flat fielding and injection of ThAr calibration. text/html 2026-06-03T13:25:14+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/on_sky_testing?rev=1780493114&do=diff June 2026 Various work: - the telescope started to oscillate in the past several weeks, evident in the Planewave tracking plots. We ran a quick tuning, but no change. We ran a thorough tuning (couple hours), also no change, but upon rebooting pwi1m computer, problem seems to have gone away. Consulting Planewave (Josh Persson), this is not expected, so unclear what was/is going on! text/html 2026-06-03T12:04:56+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/dates?rev=1780488296&do=diff Important dates 6/1/2026 : reinstalled Butler iodine cell, new iodine stage. Flipped bifurcated fiber near end of night! 5/12/2026 : implementation of new Edge controller for Planewave PW1000 4/22/2026 : liquid-cooled CCD reinstalled, chiller implemented. Stage maximum velocities reduced. Iodine cell realigned. text/html 2026-06-02T21:18:33+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/calibration?rev=1780435113&do=diff Calibration Calibration spot Position The calibration spot moves up and down as the calibration stage is moved. To move the calibration stage left/right one needs to adjust one of the screws on the mirror mount for the mirror in front of the Shelyak. I believe that turning the top screw CW (from behind the mirror) moves the spot to the right. text/html 2026-06-02T21:17:17+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/telescope_and_observatory_control?rev=1780435037&do=diff Telescope and observatory control system Telescope control system Telescope is a Planewave PW1000. It is controlled through the pwi1m computer in the 1m dome, running Windows. pwi1m has two network interfaces. One connects to the telescope internal network on 192.168.10.XXX. pwi1m is 192.168.10.40, the Maestro controller on the telescope is 192.168.10.50, and the OTA controller on the telescope is 192.168.10.60. text/html 2026-06-02T13:07:54+00:00 holtz (holtz@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/spectrograph_systems?rev=1780405674&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 2026-05-26T15:45:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/fiber_run?rev=1779810348&do=diff Fiber Fiber cladding and termination We inherited fiber from the Australia SONG project. This was about 500 meters of octagonal (50/70/95) fiber. We signed a contract with FiberTech Optica (FTO) in Canada to construct 2 separate 83m cables (for redundancy), each with 3 fibers in it (for science fiber, cal fiber, and extra fiber), with a ferrule on one end and a FC connector on the other, and sent them the fiber in July 2024. text/html 2026-05-26T15:41:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=fiber%3Afinal_report_pf_02_compressed_1_.pdf&ns=fiber&rev=1779810104&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/lib/images/fileicons/svg/pdf.svg" alt="final_report_pf_02_compressed_1_.pdf" loading="lazy" width="500" height="500" /> text/html 2026-05-21T14:17:44+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/software?rev=1779373064&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 2026-04-24T19:48:33+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 2026-03-06T18:07:31+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 2026-02-04T22:20:16+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_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" /> text/html 2026-02-04T22:09:51+00:00 Anonymous (anonymous@undisclosed.example.com) http://astronomy.nmsu.edu/song-wiki/?image=test%3Aspecfoc_435500.png&ns=test&rev=1770242991&tab_details=history&media_do=diff&do=media <img src="http://astronomy.nmsu.edu/song-wiki/_media/test/specfoc_435500.png?w=500&amp;h=500&amp;tok=73bb77" alt="specfoc_435500.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" />