dpc sgs-ir – estec – 24-26 january 2007 anna gregorio university of trieste and inaf –...

DPC SGS-IR – ESTEC – 24-26 January 2007

Anna GregorioUniversity of Trieste and

INAF – Osservatorio Astronomico di Trieste

On behalf of the Planck LFI DPC-IOT and

Planck SCS DPC-IOT (Gianluca Morgante)

LFI & SCS Operation Plan


Overview

Operations Context Data processing Tele-commanding Software maintenance, new software release, archive development

Nominal Operations Routine Operations Non-Routine Operations Commissioning and CPV Operations

See also Operation PlanPL-LFI-PST-PL-011PL-LFI-PST-PL-011 ANNEX I


Operation Context

Data Processing

LFI: SGS1 & SGS2 SCS: SGS1 only (SCS data are considered HK)

Tele-commanding Maintenance TC (re-setting TM counter) + ad-hoc TC to enhance LFI

performance or better monitor the LFI

Software maintenance, new software release, archive development SGS1 (LFI and SCS) & SGS2 (LFI only)

Support to MOC when necessary


DPC-IOT Nominal Operations

Routine Phase Operations Daily Operations (LFI & SCS) Weekly Operations (LFI & SCS) Monthly Operations (LFI & SCS) End of Survey (Map Production) (LFI)

Component separation and optimization Inter-comparison and cross-check

Non Routine Operations LFI:

Planet Scanning Small Gap Recovery Operations

SCS: Recovery Operations (in case of contingencies, at MOC or at DPC) SCS switch-over (baseline, it is planned in advance) Regeneration (NOT baseline, if needed can be planned in advance)

Commissioning and CPV The operation timeline depends on the synergetic interaction of several activities

involving the S/C, both instruments and SCS, that need to be finalized


Daily Operations: automatic

1. Download one observation day of consolidated data

2. Run SGS1 software: RTA, TQL, TMH

3. Check system health and performance: LFI: Compute R and evaluate the knee frequency SCS: compute heat lift and input power, evaluate high/low pressure and cold end T

4. Compare with HFI data (on demand)

5. Run the Time Series Analysis (TSA) – LIFE system:Trends, Data Quality, Flags

6. Compile the reports generated by LIFE into a Daily Quality Report (DQR) to be sent to PSO

LFI & SCS


Daily Operations: DPC/IOT

7. Check and transmit the information (DQR and uplink operations) towards the instrument and SCS:

LFI Instrument procedure requests (maintenance TC & additional),

calibration channel switching, small gap recovery requests, Instrument special procedure requests (REBA patching) (if needed)

SCSLookUpTable update/upload (if needed)

8. Eventually provide support to the scientific team running the Quick-Alarm system for detection of flaring radio sources

9. First look for systematics, perform first-order calibration, cleaning, write processed “circles”

10. Comparison with HFI data when needed

11. Organize the daily meeting

LFI & SCS


Daily Quality Report (OD)

Period covered by the report, Date/Time of report generation, Software tools version, Issuer of the report, Any relevant warnings or comments

LFI Threshold NET (Noise Equivalent Temperature) Data records for quality analysis parameters (per pointing): Pointing Reference, Axis positioning

information, Dwell period start and end times, Science observation time Transfer status to DPC of TM collected per detector Dipole/Galaxy Response per detector NET per detector, NET bandwidth per channel Temperature sensors report (average T, drift, noise power, fluctuations, out of limits) State vector (voltage and current report)

SCS (DQR is annex to the LFI one)

TMU health & SCE health (all sensors: T, P, V, I) Cooler Status (Cycle Time, GGA’s timing, number of cycles) Contingencies & Events (Diagnostic TM, Event Reports TM(5,1)) SCS Primary (T, P, V, I) and Derived Performance Parameters vs requirements (Cold End T

and PSD, Heat Lift, Mass Flow, Input Power) Primary I/F’s status (Warm Radiator T, PC1, PC2, PC3abc T, HFI I/F T, LFI I/F T) Any relevant warning or comment


Delays in the timelines

Short Delays in DQR production Glitches or Alarms

Limited in time, reprocessing of a chunk of data; Bad sky subtraction

Reason to be understood, reprocessing of a chunk of data; Bad point sources subtraction

Reason to be understood, reprocessing of a chunk of data

Additional Delays in the Operation Context (Data processing & TC) Small Gap or a more general gap

Cause to be understood and then solved before implementing a correction; Requiring a list of TC to be sent; If not a trivial problem, it could be a long delay;

A minor problem or a required tuning Requiring a list of TC to be sent;

HFI comparison HFI data to be retrieved and then compared to LFI


Weekly Operations

1. Read one week of consolidated raw LFI/SCS TOI from archive

2. Run TSA – LIFE for data checking and trend analysis

3. When needed, compare with HFI data

4. Perform initial “calibration” on data:

LFI Iterative calibration of radiometers, 1-D evaluation of beam, Stray-light effects, Attitude reconstruction, Focal Plane reconstruction

SCSPrimary (T, P, Input Power) & derived (Heat Lift, Cold End T and PSD) parametersHydrides degradationPossible LUT update evaluation

5. Map Making (temperature & polarization)

6. Compile the reports generated by TSA-LIFE trend analysis and daily reports into a

Weekly Health Report (WHR) to be sent to PSO

7. Organize the weekly meeting


Monthly Operations

1. Read one month of calibrated LFI/SCS TOI from archive

2. LFI: Build partial frequency maps and compare

SCS: Run trend analysis (primary and derived parameters) Evaluate hydrides degradation Evaluate possible variations to SCS Operation baseline

3. Possibly, run Level 3:

Component separation, Inter-frequency cross-checks on CMB maps,

Component maps archive, Merge component maps

4. Cross-check LFI and HFI data

Retrieve HFI maps/power spectra, Cross-check LFI - HFI data, LFI/HFI

optimization on component maps

5. Compile monthly data processing reports to be sent to PSO

6. Organize the monthly meeting


raw TOI (sorted by receiver/parameter)

HFI calibrated TOD (sorted by receiver); processing reports

within 10 hours

(periodic exchange)

Instrument + SCS characterization (DB)

parameters

raw TOI archive

generation of alarms for unexpected sources

scientific alarms

within 10 hours

calibrated TOD archive(at different levels of accuracy)

TOD calibration attitude reconstruction

HFI / LFI cross-check

positions of sources

Correlation between data and H/K

Stray light analysis

Instrument model

TSA + Trend analysis

LEVEL 2

Point Source processor

LEVEL 1

Eval. of systematics - stray light

Short- and long-term evaluation of dipole

input from other data-

sets

LFI calibrated TOD (sorted by receiver)

Catalog of radio sources

raw TOI (sorted by receiver/parameter)

HFI calibrated TOD (sorted by receiver); processing reports

within 10 hours

(periodic exchange)

Instrument + SCS characterization (DB)

parameters

raw TOI archive

generation of alarms for unexpected sources

scientific alarms

within 10 hours

calibrated TOD archive(at different levels of accuracy)

TOD calibration attitude reconstruction

HFI / LFI cross-check

positions of sources

Correlation between data and H/K

Stray light analysis

Instrument model

TSA + Trend analysis

LEVEL 2

Point Source processor

LEVEL 1

Eval. of systematics - stray light

Short- and long-term evaluation of dipole

input from other data-

sets

LFI calibrated TOD (sorted by receiver)

Catalog of radio sources

SGS1

SGS2

Timeline 1/4

SGS1f ~ 10 hr

SGS11 ~ 8 hr

LIFE ~ 10 hr

SGS21 ~ 20 hr

SGS22 ~ 26 hr

Operational Day (OD): 24 hrDTCP ~ 3 hr

GS to MOC ~ 5 hrData @DPC ~ 3 hr

SGS1


Timeline 2/4: Mid case

SGS2SGS2


Timeline 3/4: Extreme Late case

SGS2SGS2


Timeline 4/4: Extreme Early case

SGS2SGS2SGS2


Conclusions

Effort to implement as much as possible the LFI/SCS operations in an automatic way For operations requiring DPC/IOT intervention, a person will always

be in place For contingencies, gaps or more in general for any alarm, a

DPC/IOT responsible will be automatically informed to react as soon as possible

Routine Operations Operations and timelines are in place Quality reports are being implemented

dpc sgs-ir – estec – 24-26 january 2007 anna gregorio university of trieste and inaf –...

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