The PACS Status Herschel PV Mid-Term Review ESAC, September 1, Herschel Performance Verification Mid-Term Review PACS Status: Overview Markus Nielbock (MPIA)

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Plan Goals and details of PACS PV outlined in PACS PV Phase Plan Document (PICC-MA-PL-001, Issue 1.4) description of calibration sources high level description of calibration programmes detailed description of calibration observations overview of pipeline processing high level plan of PACS PV phase OD schedules trace matrix of scheduled ODs and targets per calibration item MTL (mission timeline) overview of scheduled PACS ODs main drivers of AOT validation: requirements and AOT requests of GT/OT Key Projects reproducibility of AOT mode results (cross calibration) optimise AOTs wrt their parameter space probed

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS Calibration Programme one proposal for each general calibration aspect PACS PhotPACS SpecSPIRE/PACS Parallel PVPhotSetupPVSpecSetupPVParAOTVal PVPhotCoolerPVSpecGeGa PVPhotBolPVSpecSPU PVPhotFPGPVSpecFPG PVPhotSpatialPVSpecWave PVPhotFluxPVSpecIP PVPhotAOTValPVSpecSpatial PVSpecFlux PVSpecAOTVal

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS Photometer Calibration

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS Spectrometer Calibration

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Statistics today: OD 111 (SPIRE/PACS Parallel) start of PV phase: OD 64  48 days of PV, 25 days covered by PACS 4 ODs taken over from HIFI (used for pointing investigation) 8 ODs pointing investigation (incl. S/C STR anomaly, SAA dependence) could not be used for advancing PACS calibration programme some observations (a few ODs in total) have failed technical reasons like STR1/STR2 swap SAA dependent PTG performance human error (CUS code, AOR parameters) none of the failures put instrument or S/C in danger

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Progress (1) Bottom line: PACS calibration is on track as planned.  additional investigations stretch resources for generic PACS PV to the limit turnaround cycle: observation – analysis – planning – scheduling – delivery 12 days (PACS alternating PHOT/SPEC  PACS prime every 6th OD) originally: 2 days downlink – 8 days analysis – 2 days uplink changed to: 2 days downlink – 5 days analysis – 5 days uplink PACS stepping in for HIFI increases work load for planning, uplink, analysis (despite the additional work)

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Progress (2)

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Progress (3)

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Progress (4) see presentations by A. Contursi and M. Sauvage for details PACS Photometer (PHOT) PACS Spectrometer (SPEC) SPIRE/PACS Parallel Mode not yet tested (first execution on ODs 111/112) finished detector tuning (optimal low gain/high gain bias settings) final bias settings, but a few issues to be clarified for detectors AOT validation just started (point source & scan map) re-design of AOTs before launch  revised AOT validation programme AOT validation programme is being executed according to plan

The PACS Status Herschel PV Mid-Term Review ESAC, September 1, PACS PV Phase Projection execution of assigned 18 PACS PV ODs pending some crucial calibration observations to be postponed until after official PV phase due to target visibility (planets, asteroids) two ODs (114/115) already delivered to HSC detailed plan exists for four following ODs (118/119, 124/125) mostly covering SPEC spatial calibration PHOT: AOT validation, spatial and flux calibration Jupiter: wavelength calibrator filling the entire SPEC FOV Neptune: flux calibrator, SPEC PSF calibrator