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Observing with the 10m 2005 - 2006

Observing with the 10m 2005 - 2006. Observed from 25 Sep. 2005 - 21 Jun. 2006 We did mostly AGN Monitoring New! Webpage with realtime results/timetable We had no major technical problems Weather was great! 634 hours of A/B. [Monsoon began]. Trevor Weekes (for Deirdre Horan).

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Observing with the 10m 2005 - 2006

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  1. Observing with the 10m2005 - 2006 • Observed from 25 Sep. 2005 - 21 Jun. 2006 • We did mostly AGN Monitoring • New! Webpage with realtime results/timetable • We had no major technical problems • Weather was great! 634 hours of A/B [Monsoon began] Trevor Weekes (for Deirdre Horan) … that we did not overcome

  2. Available Dark Time: 167 nights Tech.Probs. 7.5 nights Bad weather 31 nights Took Data 128.5 nights We had 128.5 nights of data and in total got 634 hours of data in A/B weather

  3. 634 Hours of A/B Data Concentrated mostly on the Crab, 5 Whipple-detected AGN and Microquasar LSI+61303 Object: Hours Misc. Crab 1es2344 M421 1es1959 M501 LSI H1426 Total: 634 hours

  4. Results of 10m Observing • Several people will describe results from the 10m campaigns this year: • Andy Smith • AGN • LSI+61303 • John Toner • 1es2344 & 1es1959 • John Kildea • The 5 Whipple Blazars

  5. Example of Lightcurve Sept.-Nov. 1es1959+650: Optical data from A. Sadun, X-ray from ASM and gamma-ray data from 10m. We will have a lot more data from other telescopes to include here.

  6. 60 Hours of A/B “Misc.” Observations Included in this 60 hours were: • Data on other targets: • GRBs (4 hours) • Soft Gamma Repeater 1900+14 (10 hours) • ToOs on 10 other Blazars (23 hours) • Calibration Data: • Zenith runs (22 hours) • at El. 80º this year • Pointing runs (12 hours) • Took a lot of 2-min. pointing runs to telescope characterize pointing (see next slide) • Nitrogen runs

  7. Two-Minute Pointing Runs 12 hours of pointing runs were taken this season • For everytarget observed each night, a 2-minute “pointing star run” was taken • In order to do this, the pedestal trigger was increased from the normal 1 Hz to ~30 Hz while tracking the pointing star • In this way, the pedvars can be used to determine how good the telescope pointing is • A “normal” pointing check was also done after each target We should be able to apply accurate pointing corrections to all data taken

  8. 10m Problems and Fixes • Tracking … Fixed (see next slide) :-) • HV … Not Fixed :-( • BUT, not a major problem :-)… yet? :-( • VME Software Licenses Expired on Taurus :-( • Could not re-compile GRANITE to include new CFD calibration at start of season • Mirror Alignment looks good:-) Overall, the 10m performed very well this observing season :-)

  9. Fixing the Tracking Problems • The Problem: Telescope would occasionally report incorrect El and (more recently) Az values • Intermittent -> hard to fix/debug • Software fix … to minimise impact of problem • Oct. 2005: problem became persistent • Were able to trace it to a flakey ribbon cable in the mount • Cable replaced … problem has not returned in El • May 2006: same problem with Az • Equivalent ribbon cable in mount for Az replaced

  10. Whipple Webpage • Webpage was updated ~daily • Timetable updated each darkrun and if MWL campaign changed/started • Email sent to collaborators to keep them posted • Preliminary AGN results posted after each night of observing • Crab rate or upper limit

  11. Whipple Webpage http://veritas.sao.arizona.edu/VERITAS_whipple.html Links to timetable, lightcurves and participants There is a direct link to this page from the VERITAS webpage

  12. Participants: 14 + ASM Contact Telescope Radio I.R. Optical All targets on our monitoring list are also been monitored on a daily basis in X-rays by the ASM

  13. 1968 - 2006 As the 10m approaches its 40th Birthday, it is still performing very well.

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