[SALSA users] Pointing offset found and corrected for Vale

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eskil.varenius@chalmers.se
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SALSA users
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eskil.varenius@chalmers.se
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Content-Type: text/plain; charset=UTF-8; format=flowed Bcc: yvelicesoraya@gmail.com, eskil.varenius@gmail.com, bes.wll@telia.com, fogasy@chalmers.se, lopez@obs.u-bordeaux1.fr, axl.ericsson@gmail.com, niko.kareinen@chalmers.se, jp.west@yahoo.dk, bo@sorensson.se, wiegert@chalmers.se, erik-svensson@live.se, ondrej.pejchal@gmail.com, joachim.wiegert@gmail.com, mitra.hajigholi@gmail.com, daniel.bergqvist@telia.com, bileam@gmail.com, astrosredna@hotmail.com, marc.o.wolf@xs4all.nl, danivilla21@hotmail.com, robin.fingerhut@gmx.de, zikmund.tom@seznam.cz, mazerat@wanadoo.fr, fritssweijen@hotmail.com, maryam.saberi@chalmers.se, acrennie@gmail.com, mattrunyan7@gmail.com, giulia.iafrate@gmail.com, fred_sve91@hotmail.com, gussundju@student.gu.se, filhal@student.chalmers.se, gusmarjma@student.gu.se, kimseojin01@gmail.com, andreols@student.chalmers.se, antonherrnilsson@gmail.com, vilhelm.frandberg@gmail.com, mararons@chalmers.se, gusanderse@student.gu.se, gardh@student.chalmers.se, guschrismo@student.gu.se, mardavid@student.chalmers.se, renjie.tan91@gmail.com, kargili@lycos.com, Enegar@student.chalmers.se, simonpf@student.chalmers.se, gusostse@student.gu.se, abuwak@gmail.com, charlesn@student.chalmers.se, jan@cosmicnoise.org, andrej.bresan@gmail.com, julien.girard@obspm.fr, elif.bay@hotmail.com, benoit.epinat@lam.fr, anais.bernard@lam.fr, jesper.enlund@gmail.com, rafal.deska@wp.pl, grzesko77@wp.pl, nvarma1993@hotmail.com, mivan@chalmers.se, alirasho@hotmail.com, lqthuy3@hotmail.com, labsilva@gmail.com, bo.sorensson@tele2.se, SA6CLX@sorensson.se, luc.favre@univ-amu.fr, linnea.lindh@astronomiskungdom.se, sarrvesh.ss@gmail.com, clarke@bedales.org.uk, TatiyanaSh.ch.erb.aty.kha.3.2@gmail.com, adan.artola@unah.edu.hn, yankel18@hotmail.com, shantoastro@gmail.com, aescobar_1204@hotmail.com, Joakim@joasve.se, julioavivas@gmail.com, juancuervo076@gmail.com, bordiufdezc@gmail.com, jmdana@gmail.com, jordi.sanchez.delgado@gmail.com, cromero@alterland.cl, juan.beato@gmail.com, calatayud.salva@gmail.com, f.gallardo.lopez@gmail.com, jfvanyo@gmail.com, equevedo@gmail.com, bose.buet@gmail.com, varenius@chalmers.se, franklinnewhart@hotmail.com, michael.olberg@chalmers.se, casper.lindberg@outlook.com, simon.olvhammar@gmail.com, toni.vives6@gmail.com, ziad.mllii@gmail.com, richcrompton@gmail.com, ucedatfe@hotmail.com, aterneroc@gmail.com, per-ola.g.fredriksson@edu.varnamo.se, paulcwalker@tiscali.co.uk, vanroonhenk@gmail.com, salsa@sterrenwachtleeuwarden.nl, mario.sandri@gmail.com, casco_hector@yahoo.com, claude.bouyer@wanadoo.fr, tbensby@astro.lu.se, rudiger.haas@chalmers.se, pluppson@hotmail.com, calippo_99@hotmail.com, 99.oskarw@gmail.com, elmont3@virgilio.it, thomas.hobiger@chalmers.se, h3255220@outlook.com, markus.pettersson97@gmail.com, sara@almehed.com, herrero@iaa.es, h8836992@outlook.com, einsteineddington@gmail.com, uc@moonbus.se, pascal.cornu@kilonewton.fr, grzegorz.klopotek@chalmers.se, Thewincentholm@hotmail.com, akiraff91@hotmail.com, 1said257@gmail.com, tempelmix@msn.com, hanneswettergren@gmail.com, dag.nilsson@live.com, carina.m.persson@gmail.com, carina.persson@chalmers.se, Helidriver96@hotmail.com, Chris.hultqvist@hotmail.com, thomas@darth.nu, jaldehag@student.chalmers.se, elechi@student.chalmers.se, auguste@student.chalmers.se, adrianc1995@yahoo.com, hoppe@student.chalmers.se, silvermo@student.chalmers.se, gusdahmau@student.gu.se, hubert.puddle@gmail.com, d_dagson@outlook.com, Linnea.hesslow@gmail.com, bruni@student.chalmers.se, markus.polleryd@hotmail.com, annelies.f.dekker@gmail.com, eaherrgarden@gmail.com, tonym@student.chalmers.se, lange.alexandra@icloud.com, justin.saler.r@gmail.com, shj.wallstrom@gmail.com

You were sent a group email from http://vale.oso.chalmers.se/salsa/.

Dear SALSA user,
This morning we found a severe pointing offset in the Vale telescope of
about 7.5 degrees in altitude. This is severe and will cause the telescope
to look in the wrong direction on the sky. The SALSA system is routinely
checked for pointing errors by observing the Sun, usually at least once a
week. We do not know when this offset was introduced, but we suspect errors
were made during system maintenance two weeks ago, and that the error
somehow escaped the subsequent checks. If you have made observations in the
past two weeks, you may want to redo your observations. We apologies for
any inconvenience.

For completeness we mention that no similar systematic error has been found
for the Brage telescope, so data from Brage should be OK from the past two
weeks. We note however that the Brage telescope suffer from wobbles in
strong wind, such as today. These problems are known and possible
improvements under investigation.

As of now, both telescopes should be working correctly with pointing
accuracy within 0.5 degrees (except for wind wobbles).

Again, apologies for any inconvenience.

Best regards,
SALSA support

Result: