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Demystifying the Queue at Gemini Observatory

Demystifying the Queue at Gemini Observatory. Henry Lee Gemini South, Chile. AAO Epping - 29 June 2009. AAO AusGO : 29 June 2009. 1. How the queue works Maximizing science Phase 2 pitfalls. ... my emphasis will be on Gemini South. AAO AusGO : 29 June 2009. 2. Queue-scheduling.

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Demystifying the Queue at Gemini Observatory

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  1. Demystifying the Queue at Gemini Observatory Henry Lee Gemini South, Chile AAO Epping - 29 June 2009 AAO AusGO : 29 June 2009 1

  2. How the queue works • Maximizing science • Phase 2 pitfalls ... my emphasis will be on Gemini South ... AAO AusGO : 29 June 2009 2

  3. Queue-scheduling • Three-band structure for (I)TAC-approved programs • Within each band, programs are of equal merit • Observations in the queue selected by • scientific ranking; the “band” • observing conditions at present • target position & visibility : low in sky? early? late? • overall use of instrument and/or instrument settings • program status : started & subsequent completion • (partner balance done at ITAC) • For conditions, do all B1 before B2, then B2 before B3 • B3 is designed to overfill queue & provide flexibility AAO AusGO : 29 June 2009 3

  4. Queue-scheduling • Matching priority & observing conditions • Cloud cover, CC • Image quality, IQ • Sky brightness, SB - optical • Water vapour, WV - NIR, MIR • Advantages : • able to fit observations with their required conditions to actual conditions • can set aside time before hand for SToO • quick-response (< 5 minutes) to RToO; e.g., GRBs • “instrument switch” is simply moving the science-fold AAO AusGO : 29 June 2009 4

  5. AAO AusGO : 29 June 2009 5

  6. Queue coordination • Daytime “analog” to nighttime queue-observer • Interactions with • queue-observers • instrument-teams • day-crews • data-analysts (DA) • contact-scientists (CS) • program PIs (PI) AAO AusGO : 29 June 2009 6

  7. Queue coordination • Nightly observing plans for multiple condition-variants • Changes mask- and instrument-configurations as necessary • Ensures calibrations are completed for program • Communicates with CS, IT, PIs about possible issues • Ensures data-quality checks with help from DAs • “Core” queue-coordinators : long-term scheduling AAO AusGO : 29 June 2009 7

  8. Daily queue management AAO AusGO : 29 June 2009 8

  9. (Observing) Conditions • B1-2 : no need to relax observing conditions • B3 : as queue-overfill, we do not carry out all observations • provide flexibility for non-ideal conditions • minimum-time < requested-time ? • targets’ list and visibility ? • relax observing conditions & maintain science goals ? • “best” flexibility at CC70+ IQ85+ (optical) AAO AusGO : 29 June 2009 9

  10. (Observing) Conditions AAO AusGO : 29 June 2009 10

  11. (Observing) Conditions AAO AusGO : 29 June 2009 11

  12. (Observing) Conditions AAO AusGO : 29 June 2009 12

  13. GN2006B-2008B “Under pressure ...” GN 2006B-2008B AAO AusGO : 29 June 2009 13

  14. GS2006B-2008B “Under pressure ...” GS 2006B-2008B AAO AusGO : 29 June 2009 14

  15. 2009A “Under pressure ...” 2009A AAO AusGO : 29 June 2009 15

  16. Phase 2 pitfalls • Targets at “semester” boundaries • Guide stars too faint for conditions • recommend UCAC2 catalog for GMOS OIWFS • Usable finder charts : • careful to show target, identifiers in crowded-fields • chart-size appropriate to instrument field-of-view • If special acquisition or other, please tell us • we are not experts in every field ... • nor can we read minds ... • Don’t forget appropriate/necessary calibrations ... • Can use templates from standard OT libraries AAO AusGO : 29 June 2009 16

  17. 2009B AAO AusGO : 29 June 2009 17

  18. Phase 2 pitfalls AAO AusGO : 29 June 2009 18

  19. Phase 2 pitfalls AAO AusGO : 29 June 2009 19

  20. AAO AusGO : 29 June 2009 20

  21. “Help us help you ...” “Help me, help you ...” (Jerry Maguire) • Submit Phase 2s before deadline (July 13) • Target visibility, guide-stars, finder charts ... • If MOS, define and submit preimaging ASAP • early preimaging : earlier mask-preparation • submission deadlines : 1st, 15th of every month • MOS program activated and executed sooner • For most observations, standard OT libraries available • Band 3 : relax observing conditions? possible targets outside of “high-pressure RAs”? AAO AusGO : 29 June 2009 21

  22. AAO AusGO : 29 June 2009 22

  23. “Show me the photons ...” “Show me the money ...” (Jerry Maguire) • Queue is flexible, but keeps to scientific band • Get your Phase 2s submitted early! • Queries to Gemini HelpDesk • If B3, relax observing conditions ? • Good luck & may the skies be with you, always ... • Current queue & schedule AAO AusGO : 29 June 2009 23

  24. Thanks; I’m happy to take further questions ... AAO AusGO : 29 June 2009 24

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