5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 1

The AGILE Instrument functional performance

A. Argan, A. Trois

(on behalf of the AGILE Team)

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 2

SUMMARY

- Introduction

- Overview on the on-board scientific data acquisition

- Overview on the in-flight functional performance

- Conclusions

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INTRODUCTION - GLOBAL VIEW

1. Detector volume: ~ 0.25 m3

2. Detector mass: ~ 120 kg3. Detector power consumption: ~ 60 W4. Complex data acquisition system:

1. 36.864 Silicon Tracker (gamma-ray imager) channels2. 6.144 Super-Agile (hard X-ray imager) channels3. 60 Mini-Calorimeter channels4. 15 AC channels5. 27 FPGA’s6. 1 DSP

The most compact and low-power Instrumentever developed in High Energy Astrophysics.

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 4

PDHU – THE SCIENTIFIC PROCESSING HARDWARE SOFTWARE

GPS

AC

ST

MCAL

SA

GRID: - TRIGGER 1 & 1.5

- READOUT - PRE-PROCESSING

BURST: - MCAL BURST DAQ - SA BURST IMAGING

SA: - PHOTON-BY-PHOTON

GRID: - CLUSTER ID

- MCAL ZERO-SUPPRESSION

- TRIGGER 2

BURST: - BURST SEARCH

- SA IMAGES DECONVOLUTION

T E L E M E T R Y

BUS

FAST LINK

SSs

OVERVIEW ON THE ON-BOARD DAQ (I)

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THE ON-BOARD DAQ (II): GRID

SYNCHRONOUS PHASE

TRIGGER 1 + TRIGGER 1.5 < 25s TYPICAL DEATHTIME ~200s

ASYNCHRONOUS PHASE

TOTAL DURATION ~ 3-4ms NO DEATHTIME

DATA HANDLING

HARDWARE SOFTWARE

AC

MCAL GRID

ST

TAA1 MAP

AC TOP AC LAT

READOUT:

ALL THE 32 BARS

SPARSE READOUT:

ONLY THE TAA1 FIRED

TRIGGER LEVEL-1:

CHECK ON THE AC VETO SIGNAL AND

THE NUMBER OF THE TAA1

FIRED.

TRIGGER LEVEL 1.5:

ANALYSIS OF THE TAA1 FIRED

TOPOLOGY DATA

PRE-PROCESSING:

- PEDESTAL SUBTRACTION

- COHERENT NOISE SUBTRACTION

- ZERO-SUPPRESSION

- MCAL

ZERO- SUPPRESSION

- CLUSTER ID

- TRIGGER LEVEL-2

T E L E M E T R Y

20 independent trigger algorithms

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THE ON-BOARD DAQ (III): GRB SEARCH

DATA HANDLING

HARDWARE SOFTWARE

BURSTSEARCH

ON TIMESCALES64ms-8s

BUS

FAST LINK

T E L E M E T R

MCAL BURST

CYCLIC BUFFER

SA IMAGING

IMAGES INTEGRATION

RATEMETERS

BURST SEARCH RATEMETERS

MCAL BURST

SA

Burst Search on 8+9 channels (SA + MCAL) Burst Search timescales from <1ms to 8s On-board Burst coordinates determination (error ~20 arcmin)

ON TIMESCALES <1ms-16ms

IMAGESDECONVOLUTION

AND BURSTCOORDINATES

DETERMINATION

Y

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OVERVIEW ON THE ON-BOARD DAQ TELECOMMANDS

- AC FEE configuration:- 1 TC33S5: AC Obs. configuration (RAM/EEPROM)- 1 TC33S6: AC El. Cal. configuration (RAM/EEPROM)

- ST FEE configuration:- 1 TC33S7: ST General Obs. configuration (RAM/EEPROM)- 96 TC33S8: ST Regin configuration (RAM/EEPROM)- 1 TC33S9: ST El. Cal. configuration (RAM/EEPROM)

- SA FEE configuration:- 1 TC33S10: SA General Obs. configuration (RAM/EEPROM)- 48 TC33S11: SA Obs. Regin configuration (RAM/EEPROM)- 48 TC33S11: SA Cal. Regin configuration (RAM)- 4 TC33S12: SA El. Cal. configuration (RAM/EEPROM)

- MCAL FEE configuration:- 1 TC33S13: MCAL Obs. configuration (RAM/EEPROM)- 1 TC33S14: MCAL El. Cal. configuration (RAM/EEPROM)

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- PDHU – GRID logic configuration:- 1 TC33S2: GRID HW configuration (RAM/EEPROM)- 1 TC33S3: GRID SW step-1 configuration (RAM/EEPROM)- 1 TC33S4: GRID SW step-2 configuration (RAM/EEPROM)- 1 TC33S37: GRID SW step-3 configuration (RAM/EEPROM)

- PDHU - BURST logic configuration:- 1 TC33S15: Burst Search general configuration (RAM/EEPROM)- 1 TC33S16: Burst Search HW configuration (RAM/EEPROM)- 4 TC33S17: SA Burst Search SW configuration (RAM/EEPROM)- 4 TC33S19: MCAL Burst Search SW configuration (RAM/EEPROM)- 1 TC33S18: SA Imaging configuration (RAM/EEPROM)

- PDHU - General scientific configuration (managed by LTP during the Routine phase):

- 1 TC33S1: Scientific general configuration (RAM/EEPROM)- 1 TC33S20: Telemetry Partition Table configuration (RAM/EEPROM)

OVERVIEW ON THE ON-BOARD DAQ TELECOMMANDS

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OVERVIEW ON THE ON-BOARD DAQ LOOK-UP TABLES

- PDHU – GRID logic configuration:- ¾ Trigger: 4 LUTs Obs. + 2 LUTs Cal.

- AC Veto: 4 LUTs Obs. + 1 LUT Cal.- R-Trigger: 4x8 LUTs Obs. + 2 LUTs Cal.- 1.5 Trigger: 4 LUTs- CDIS Trigger: 4 LUTs - ST Offsets: 1 LUT- FVC1: 1 LUT- FVC2: 1 LUT- Kalman Filter: 7 LUTs

- PDHU – SA Photon-by-Photon configuration:- Address Corr.: 4 LUTs

- PDHU - BURST logic configuration:- SA Burst Trigger: 4x4 LUTs

- SA Imaging Trig.: 4 LUTs- MCAL Burst Trig.: 4x4 LUTs- MCAL BBFP: 4x4 LUTs- SA Burst Imag.: 7 LUTs

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220 TCs (~100000 parameters)

126 LUTs

OVERVIEW ON THE ON-BOARD DAQ

A complete AGILE scientific configuration is composed of:

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THE AGILE ON-GROUND TESTING (I)

ACTIVITY FACILITY DATEPayload AIV Thales-Aleniaspace Italia, Milano (Italy) December 2004 - October 2005

Bus AIV Carlo Gavazzi Space, Tortona (Italy) December 2004 -November 2005

GRID CalibrationLaboratori Nazionali di Frascati-INFN,Frascati (Italy)

November 2005

Satellite AIV Carlo Gavazzi Space, Tortona (Italy) December 2005 – May 2006

Satellite Qualification IABG, Munchen (Germany) June-July 2006

Scientific Configurationfinalization

Carlo Gavazzi Space, Tortona (Italy) August-September 2006

Satellite refurbishment Carlo Gavazzi Space, Tortona (Italy) October-November 2006

Satellite AIVpost refurbishment

Carlo Gavazzi Space, Tortona (Italy) December 2006

Super-AGILE and MCAL-Burst Calibration

Carlo Gavazzi Space, Tortona (Italy) January 2007

Satellite Qualification post refurbishment

IABG, Munchen (Germany) February-March 2007

Launch CampaignSatish Dhawan Space Center SHAR, Sriharikota, Chennai (India).

April 2007

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THE AGILE INTEGRATION AND QUALIFICATION

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 13

AGILE integrated in the PSLV-C8 April 15, 2007

THE AGILE LAUNCH CAMPAIGN (I)

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Fotoni a terra e in volo - I

Last gamma-ray detected in India by the AGILE-GRID on top of PSLV-C8

THE AGILE LAUNCH CAMPAIGN (II)

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THE AGILE LAUNCH

The AGILE satellite was successfully launched by the Indian rocket PSLV-C8

on April 23, 2007.

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 16

OVERVIEW ON THE IN-ORBIT PERFORMANCE

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 17

SILICON TRACKER FEE CONFIGURATION

- Energy Threshold (dig. value=5) => ~95% detection efficiency

- 792 strips disabled (~ 2% total strips)

5th Science AGILE Workshop  – ESRIN, Frascati, 12-13 June 2008 18

Fotoni a terra e in volo - II

First gamma-ray detected in orbit with the nominal GRID trigger configuration (May 10, 2007)

GRID FUNCTIONAL PERFORMANCE (I)

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GRID FUNCTIONAL PERFORMANCE (II)

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GRID FUNCTIONAL PERFORMANCE (III)

The GRID Trigger background rejection

10kHz

150Hz

80Hz

5Hz

Pre-trigger rate

Level-1 output rate

Level-1.5 output rate

Level-2 output rate

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GRID FUNCTIONAL PERFORMANCE (IV)

TM GRID event rate:

< 7Hz

Max. sustainable (and measured) TM GRID event rate: 30 Hz.

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SUPER-AGILE FEE CONFIGURATION

- Energy Threshold = 18keV

- 718 strips disabled (~ 12% total strips)

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SUPER-AGILE FUNCTIONAL PERFORMANCE (I)

by SA Team – IASF-INAF Roma

- Energy Upper threshold (>100 keV) cuts ~250 cts/s.

- AC Top and Lat cuts ~100 cts/s (~5% deadtime).

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SUPER-AGILE FUNCTIONAL PERFORMANCE (II)

by SA Team – IASF-INAF Roma

TM SA event rate (with SA max temperature ≤ 26°C):

< 100Hz

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LTP SCIENTIFIC CONFIGURATION

AC_FEE P108="Observation" P139="Keep Nominal Config" P170="Keep Nominal Config" P201="Keep Nominal Config" P232="Keep Actual Config"

GRID P100="Observation" P101="0" P102="0" P103="0" P104="0" P105="0" P106="0" P107="0" P131="StandBy at PDHU Level" P162="Keep Normal Config" P193="Keep Normal Config" P224="StandBy at PDHU Level"

SA P127="Separate SAIE Setup" P128="Observation" P129="Observation" P130="0" P158="Keep Nominal Config" P159="Keep Nominal Config" P160="Keep Nominal Config" P189="Keep Nominal Config" P190="Keep Nominal Config" P191="Keep Nominal Config" P220="Keep Nominal Config" P221="Keep Nominal Config" P222="Keep Nominal Config" P251="Keep Actual Config" P252="StandBy at FEE Level" P253="StandBy at FEE Level"

SA_BURST P119="Observation" P120="2" P121="2" P122="2" P123="2" P125="1" P150="StandBy" P181="Keep Nominal Config" P212="Keep Nominal Config" P243="StandBy"

MCAL_BURST P109="Observation" P110="0" P111="0" P112="0" P113="0" P114="3" P115="3" P116="3" P117="3" P140="StandBy at PDHU Level" P171="Keep Nominal Config" P202="Keep Nominal Config" P233="StandBy at PDHU Level"

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TELEMETRY BUDGET

Orbit

To

tal

tele

me

try

pe

r o

rbit

(M

B)

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CONCLUSIONS

- The Commissioning phase has been carried out with excellent results.

- The PL subsystems are in general working in a satisfactory and nominal way. In several cases, during the first year, we could improve the pre-launch performance.

- During the second year, we plan to further optimize the -rays, x-rays and MCAL functional performance.