141 research outputs found

    Planck LFI – FM database Release Note

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    The present document contains the release note for the LFI FM database version 4.3.2 based on the official release (LFI FM 4.2) with the following NCRs applied: NCR 13323 - a check of the telemetry validity based, for instance, on the switch on/off of the equipment; NCR 13333 – even if the Memory Dump Absolute Address decommutation is a variable packet, for two fixed memory areas (with identical structures) of the DPU ASW and the SPU SUSW, an explicit decommutation is needed to automatize the UFT procedure; analogously, memory Check Report Absolute Address decommutation requires an explicit decommutation to automatize the UFT procedure

    Planck LFI – FM database Release Note

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    This document contains the release note for the LFI FM database version 4.5.0, based on the official release (LFI FM 4.4.2) with the following NCRs applied: NCR LFI-0022: New REBA diagnostic HK parameters; NCR LFI-0023 - Changes in TM(8,6); NCR LFI-0024 - Drain currents OOL (Out Of Limit) changes; NCR LFI-0025 - Changes in TM(1,2); NCR LFI-0026 - Changes in TM(1,8)

    Planck LFI – AVM database Release Note

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    This document contains the release note for the LFI AVM database version 1.3.0 based on the official release (LFI AVM 1.2.2) with the following NCRs applied: NCR 14328: Temperatures and currents validity; NCR 11635 - not possible to add monitoring on telemetry event 5.1, 5.2, 5.4; NCR LFI-0006 - CDF_INTER for uncalibrated values; NCR LFI-0009 - Unreferenced parameters; NCR LFI-0014 - Redundant parameters in display LA009350

    Planck LFI – FM database Release Note

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    This document contains the release note for the LFI FM database version 4.4.2 based on the official release (LFI FM 4.3.2) with the following NCRs applied: NCR 14328 - Temperatures and currents validity, Currents OOL and Alphanumeric display layout; NCR 11635 - not possible to add monitoring on telemetry event 5.1, 5.2, 5.4; NCR LFI-0004 - Numerical calibration format; NCR LFI-0005 - Numerical calibration decimal separator; NCR LFI-0006 - CDF_INTER for uncalibrated values; NCR LFI-0007 - Wrong parameter used in TM(5,1); NCR LFI-0009 - Unreferenced parameters and empty graphical display; NCR LFI-0013 - Soft instead of hard OOL; NCR LFI-0014 - Redundant parameters in display LA009350; NCR LFI-0015 - FEM drain currents warm OOLs; NCR LFI-0016 - REBA internal temperatures; NCR LFI-0017 - DAE Fast Essential and REBA Essential packets; NCR LFI-0018 - Missing parameter in the DAE Actual configuration packet; NCR LFI-0019 - Missing nominal scientific packet uncompressed; NCR LFI-0020 - Alarm and warning declaration for event packets; NCR LFI-0021 - Missing Command Verification Stages for LFI telecommands

    Planck LFI – AVM database Release Note

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    The present document contains the release note for the LFI AVM database version 1.2.2 based on the official release (LFI AVM 1.1.0) with the following NCRs applied: NCR 13323 - a check of the telemetry validity based, for instance, on the switch on/off of the equipment; NCR 13333 – even if the Memory Dump Absolute Address decommutation is a variable packet, for two fixed memory areas (with identical structures) of the DPU ASW and the SPU SUSW, an explicit decommutation is needed to automatize the UFT procedure; analogously, memory Check Report Absolute Address decommutation requires an explicit decommutation to automatize the UFT procedure

    Planck LFI – FM database Release Note

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    The present document contains the release note for the LFI FM database version 4.2 based on the first official release (LFI FM 4.1) with the following NCs applied: NC 13273 - Telemetry monitoring (OOL) Action:#8 from MN-8861; NC 13323 (periodic packet outdated); NC13333 (change of parameters type from 7.2 to 3.12 to avoid issues with the MOIS system); NC LFI-0001 – Change of way to display the LM207342 parameter inside the LA110369 monitor display from binary to Hexadecimal

    Planck LFI – AVM database Release Note

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    The present document contains the release note for the LFI AVM database version 1.1.0 based on the first official release (LFI AVM 1.0.1) with the following NCs applied: NC 13323 - periodic packet outdated; NC13333 - change of parameters type from 7.2 to 3.12; NC LFI-0001 – Change of way to display the LM207342 parameter inside the LA110369 monitor display from binary to Hexadecimal; NC LFI-0002 - the LM553350 parameter inside the LA110369 was incorrectly named and it was changed in the AVM 1.1.0 to LM553340

    Perspects in astrophysical databases

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    Astrophysics has become a domain extremely rich of scientific data. Data mining tools are needed for information extraction from such large datasets. This asks for an approach to data management emphasizing the efficiency and simplicity of data access; efficiency is obtained using multidimensional access methods and simplicity is achieved by properly handling metadata. Moreover, clustering and classification techniques on large datasets pose additional requirements in terms of computation and memory scalability and interpretability of results. In this study we review some possible solutions

    Planck LFI – Onboard Processing and Ground Segment Simulator Software

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    This document describes the module simulating the onboard processing of PType 2 data and the subsequent decoding and conversion to TOI in the DPC L1. The scope of the module is to allow the estimation of processing errors for given LFI on-board processing parameters, to simulate the effect of processing errors on real data streams. The module is designed to work both stand-alone or as part of a more complex pipeline

    Planck LFI DPC SOVT1 Procedures

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    Version 1.0 provided as reference document for the ESA Planck SGS Readiness Review (2008)This document describes the procedure of the activities to be performed during the SOVT1 test. It is aimed to cover all the tests specified in the Planck SOVT1 Test plan
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