Here is space for many To Do lists:

• keep Orga-page up to date
• complete the telescope setup
• extend Astro photography (german: Astrofotografie) (Stub) page
  • Which settings for planet, sun and deep-sky observations?
• extend spectrograph (german:Spektrograph page) (Stub)
  • Short user manual
• extend troubleshooting-page (german: troubleshooting-page)
• set up a weather webcam → students should learn to observe the weather
• extend bibliography-page
• improve gdl?
• update and translate our Jabber-Server page → still necessary?
• adjust Wiki such that it is fully responsive
• record the setup of the new instruments
  • BACHES
  • Canon
  • ST-i
• create a small physics lexicon with all important facts about the observations. In particular for N1, so that students can't find exotic elements where they argue then “but…, but Xe has a transition there”
• translate Interne Seite zu den Beobachtungen
• translate and extend Seite zum C8
• fill the “To be continued” (german: “Kommt noch”) spots in the Wiki with content

• fix tracking error (see autoguide speed and follow obj )
  • new tracking-test necessary
  • switch A-PEC and Dual tracking on
    • new training of A-PEC → detailed test series
    • make Backlash Adjustment
    • A-PEC seems to reduce the problem (see here) but one of the axis still seems to have a backlash
• Clean Schmidt-Plate! - How? → Maybe wait for next telescope
• complete list of problems (german: Fehlerliste)
  • observe and record behaviour/problems of the dome
• test ST-i camera with both spectrographs → Documentation!
• enhance collimation of the C14 see e.g. here
• train fine focus?
• test the new filters of the STF-8300 in comparison to the old filters of the ST-8
  • use Baader 2” UHC-S/ L-Booster filter for C6? → filters are ready to be tested
• check old power adapter
• paint inner gate white
• test UHC-S filters with the ST-7 → Documentation
• clean oculars with Optic Wonder → last cleaning may 2018
• make pinholes
• tinker sun finder for C8
• clean and blacken sides of OIII Filter and Halpha and SII

• bake drying granulate of the STF8300M (once a year) → next replacement: Januar 2023
• bake drying granulate of the ST-8 (once a year) → next replacement: Januar 2023
• bake drying granulate of the ST-7 (once a year) → next replacement: Januar 2023
• check drying granulate in the telescope – last replacement: 07.01.2019
• clean dome (see) → next cleaning: summer 2021
• In autumn, reduce the worm's contact pressure on the worm wheel of the right ascension drive to avoid the “ship horn” (see). In spring, increase the pressure again such that the right ascension axis can't be moved by hand.

• install Linux on the old laptop to test alternative softwares (e.g. this here) in comparison to the existing installation
• OMS: update driver and software

• extend observation lists in the svn
• revise presentation key points
• create mails for presentations → Copy&Paste
• translate svn:
  • correspondingly adjust structure
  • hints night observation
  • hints solar observation
  • short interview for S1 and S2
  • e-mail templates
  • OST manual → obsolete because of Wiki? (rh)
• clean up organisation in the svn → partially done (rh)
• add HIP and SAO numbers to the list of binary stars in the svn, because for example the CGE-Pro understands only SAO
• fill backup with observational data for students in svn
• Inventory of the OST and lab room 2.009 → next in November 2021
• fill darkarchive continuously with new data
• acquire a raspberry pi as weather camera and for weather information?
• finish bashscript for slot remindation
• create a bashscript to tweet the current weather
• update the telefone list in the dome
• add pictures to gallery
• replace imagemagick in the setup script of the gallery with python libraries
• update QR-Code/install NFC-tag for our gallery on the stairs to the telescope
• create a better/more modern first page for our server
• Buy a 128 GB Micro SD for Canon (should cost between 15 and 25 €) [1 TB would cost more than 300 €]
• New plug socket line with covers

• standardise expectation horizons
• extend exspectation horizons for interviews (only for internal use)
• N1-instructions: replace spectrum examples
• improve N1
  • optimise DADOS analysis → maybe not necessary anymore because DADOS is used with the ST-8 now which is more insensitive with respect to Fringes → apparently this is only partially correct
  • optimise BACHES analysis
    • improve normalization
    • implement different possibilities for flatfield corrections
      • Flatfielding via 1D-flatfield functions
    • enable read in of FITS files also in the pipeline
• Adjust n2_add_images.pro such that it can react to two different exposure times of the images. (different darkframe directories)
• improve C7
  • fill archive data
  • construct analysis with nightfall
• develop alternative master observations
  • rotation velocity of Jupiter using BACHES
  • spectroscopic binaries Measurement of radial velocity(german link)?
• possible additional bachelor observations:
  • develop bachelor observation regarding a new telescope alignment
  • develop bachelor observation regarding the rotational velocity of Jupiter
  • develop bachelor observation regarding the calibration lamp for the spectrographs → is this still useful since we have BACHES?
  • additional solar observation from C2 covering solar activity
    • C2 should be enhanced → If activities on the sun are visible then observe, if not use archive data
    • Do we have a formula for the intensity profile of a sun spot? – account for influence of the filter

• create a new version of The laboratory course computer for your home (a12 to go) and then update the wiki page (with the whole VirtualBox-thing etc.)

• set up aJabber server on polaris for fast communication? →Openfire Jabber Server
  • document the new Jabber server

• two wooden chairs for the dome: The metal chairs are so terribly cold in winter → < 50 Euro
• Seeing-Monitor KAF-0402ME: source: Baader Planetarium → 2910 Euro klick
• weather station → Which one?
  • or Raspberry Pi Starter Kit (~70€) with AirPi (~80€) (for example) with IR-camera (~30€) and fish-eye (e.g. this Case) (30€) (here), 26 Pin GPIO Male to Female Ribbon Cable (~4€)
  • buyable for 200-250€, has to be set up, but it shouldn't be a big deal. With that we would have an All-Sky-camera, Seeing-Monitor and an ultra-mega-super-duper weather station in one!
• eye patch for N1

• case or proper box for the flatfield foil
• camera update for the ST-8?
• switch for the COM port cable: mount, OMS, dome
• IP capable connector strip
• case or proper box for the STF8300: Outdoor Case from B&W international?
• SD card for 700D
• “Stirnlochschlüssel”
• “Schlitzbeleuchtung”

• P Cygni (as soon as possible with the BACHES - V = 4.8 mag)
• observe M4 or a similar globular cluster with the BACHES – just put the slit on the central region for Martin
• Monkey Head Nebula - NGC2174
• M97 (Owl nebula)
• Mars, Saturn, Jupiter, Venus with the DSLR
• NGC6939, NGC7789 with the STF8300M to compare with the ST-8 (N2)
• Mosaic of Andromeda m31-observed-fields.jpg (1,2,3 - 1x5min | 4 - 60x30s 3x3bin | 5,6,7 - 6x5min)
• Algol, RZ Cas, V1016 Ori, U Sge and U Cep for the C7 data archive
• BACHES-spectra (at least one for every spectral type)
• HD 237299 (spectrum with the DADOS)
• HD 54879 (spectrum with the DADOS + STF8300)
• BD+53 2790 (spectrum with the DADOS)
• take videos with the DSLR?
• NGC 7129
• Xi Persei with the BACHES
• …