On-board detection electronics in spanish optical satellite: INGENIO. Thales Alenia Space España

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Juniper Peters
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1 On-board detection electronics in spanish optical satellite: INGENIO

20 Years of Excellence in Space Spanish company founded in 1988, belonging to Thales Alenia Space, devoted to the competitive development and supply of Systems and Equipment for Space

2 20 Years of Excellence in Space Spanish company founded in 1988, belonging to Thales Alenia Space, devoted to the competitive development and supply of Systems and Equipment for Space applications. C/Einstein, 7 (P.T.M.) Tres Cantos Madrid - SPAIN Tel.: (+34) Fax: (+34) comunicacion.espacio@thalesaleniaspace.com 2

3 A European leader Thales Alenia Space A unique combination of expertise covering the full value chain, from equipment to end-to-end space systems 7200 employees 10 sites in 5 countries 2 Bn sales in 2010 TELECOMMUNICATION NAVIGATION OBSERVATION INFRASTRUCTURE EXPLORATION SCIENCE 3

A Spanish company at the forefront of the space sector Spanish company established in 1988, devoted to the development and supply of systems and equipment for commercial and institutional programs 51.

4 A Spanish company at the forefront of the space sector Spanish company established in 1988, devoted to the development and supply of systems and equipment for commercial and institutional programs 51.3 million sales in 2010 (before audit) 300 employees 40 engineers dedicated to R&D R&D own investment >5% over sales (2.5 times the average of the space sector) total R&D investment of 10% over sales Sales Staff

5 Products on board equipment Radiofrequency Telemetry and Command (TT&C) Passive Microwaves Telecom payloads Digital Electronics Data handling (TM/TC, instrument control, mechanism control) Transponders S & X bands Tx / Bx Data transmission (science, observ.) TXA IMUX Input filters PLIU MSI Telecom payloads APME Navigation clock control RF sensors QPSK modulator Telecom payloads Diplexer Communication systems (science, exploration) Butler matrix OBP Optical detection Optical sensors CMCU FFRF Up/docon IF Demux RF distribution network PEM CLS 200 TT&C S-band transponders 80 transmitters and beacons passive RF equipment (2000 IMUX channels) Delivered equipment 2 AmerHis systems (OBP + NCC) 145 digital processing units

6 Design of on-board equipment Design of on-board units. Electronic design oriented to: Avoid single point failures and failure propagation Redundancy Reliability Keeping electrical performances, power consumption, mass, dimensions Space qualified components Avoid radiation sensitive components SEU, SEL Qualification test campaign for new developments: Vibration, shock, Thermal Vacuum, EMC tests Robust and well proven designs 6

SEOSAT - INGENIO mission Earth Observation satellite launched by Spanish government: Budget 190 M for complete system development CDTI mandates ESA to

Green, Red, Near InfraRed) Wide Swath : > 55km in PAN + MS Mission capability Daily image Acquisition & downlink capability : 100 images Satellite lifetime

7 SEOSAT - INGENIO mission Earth Observation satellite launched by Spanish government: Budget 190 M for complete system development CDTI mandates ESA to conduct the development Hisdesat is selected to operate the system Optical Earth Observation imaging PAN : 2,5 m 4 multi-spectral bands MS : 10 m (Blue, Green, Red, Near InfraRed) Wide Swath : > 55km in PAN + MS Mission capability Daily image Acquisition & downlink capability : 100 images Satellite lifetime : 7 years Full yearly coverage of the Spanish territory Additional areas of interest : Europe & North Africa South America Ground stations Torrejon & Maspalomas 7

8 Primary Payload Electronics Architecture Detectors PAN CCD98-50 procurement from e2v MS TH71554 procurement from e2v Proximity Electronics (PE) PAN PE design & manufacturing by TAS MS PE design & manufacturing by TAS Video Unit (VU) Design & manufacturing by TAS Video Supply Unit (VSU) Design & manufacturing by TAS Pleiades VSU adapted to Ingenio Instrument Control Unit (ICU) Design & manufacturing by TAS Harness Internal harness to be procured by TAS EGSE Test equipment 8

9 CCD detectors: Simplified Device Schematic PAN Picture of an EM PAN CCD Simplified device schematic of PAN Detector 9

10 CCD detectors: Simplified Device Schematic MS Picture of an EM MS CCD Simplified device schematic of one MS CCD output 10

11 General description of SEOSAT Detectors Requirements based on e2v CCD98-50 (PAN) and e2v TH71554 (MS) Main requirements updated for SEOSAT/INGENIO: PAN Irradiances Spectral bands Pixel frequencies MTF Minimum saturation charge Darkness performances CCD operation temperature Key performances for SEOSAT/INGENIO PAN Qsat min = 120 ke- (goal 150ke-) MS Qsat min = 420 ke- (goal 450ke-) PAN MTF > 50% (row & column) MS MTF > 54% (row), > 59% (column) PAN & MS PRNU within register < 5% Nº Lines Up to 20 TDI lines Nº Outputs 10 Pixels per line 6000 Pixel Dimensions 13x13 µm Pixel Pitch (µm) 13 µm Sampling Time 356 µs Pixel Readout Freq 1.89 MHz MS 4 lines x52 µm 52 µm 1424 µs 1.08 MHz 11

Proximity Electronics (I) Proximity Electronics general functions Adaptation of video signals input dynamic range required at VU.

PAN amplifier noise at input < 60 uvrms MS amplifier noise at input < 200 uvrms (attenuation config.

lines inside each flex (more than 40cm length) Integration: 8 flex links to be accommodated within minimum space between focal plane and VU. Vibration / shock / cleanliness requirements.

12 Proximity Electronics (I) Proximity Electronics general functions Adaptation of video signals input dynamic range required at VU. Clock Lines routing (from VU to CCD) Power and Bias conditioning (from VU to CCD) Key electrical performances Gain of each PE video amplifier: set to optimise global PPE response uniformity Noise: PAN amplifier noise at input < 60 uvrms MS amplifier noise at input < 200 uvrms (attenuation config.) Criticalities Mechanical definition: PCBs rigid/flex technology rigid inside a box, flex to connect with VU Critical design impacting all levels: Electrical performances: 51 Microstrip transmission lines inside each flex (more than 40cm length) Integration: 8 flex links to be accommodated within minimum space between focal plane and VU. Vibration / shock / cleanliness requirements. Interfaces CCD-PE: Connector ad-hoc space qualification test campaign. PE-VU: Connector ad-hoc space qualification test campaign. Thermal definition: Active components aligned to optimize paths ( hot point on the PCB) Heat sinks designed ad-hoc space qualification test campaign. PCB routing: Very high density of components OPAMPs: high performances Vs. high sensitive to potential oscillations 12

13 Proximity Electronics (II) ELECTRICAL DESIGN PHASE +5V Rail 3V margin Black pixels Voltage range White pixels -5V Rail 3V margin MS E EQM MECHANICAL DESIGN PHASE 13

Points: Very low noise to supply the detectors

14 Video Supply Unit Functions Provide all the power supplies to the VU and PE + DTC assembly Critical Points: Very low noise to supply the detectors design with post-regulators Efficiency of the power blocks 14

15 Video Unit PAN2 DTC PAN1 DTC MS DTC PAN1 VCB PAN2 VCB MS VCB SEB PAN & MS P600 P600 P1 R: P1 V10 P1 P1 P600 V6 V5 P600 V1 V10 V6 V5 V1 N: P600 P600 P1 P1 P1 P1 P600 V10 V6 P600 V5 V1 V10 V6 V5 V1 DTC PAN 1 CON. 2 CON.1 15

Video Unit Video Input PAN: Imaging Mode Pixel 1...Pixel 600 Pixel 1...Pixel 600 Video chain Pixels number First pixel out n 1 n 600 n 1 n 600 n 1 n 600 v1 V2 V3 600, 599,...3, 2, 1 600, 599,.

..Pixel 1 n 1 n 600 n 1 n 600 n 1 n 600 V6 V7 V8 1, 2,...,.... 599, 600 1, 2,...,... 599, 600 1, 2,...,... 599, 600 n 1 n 600 V9 1, 2,...,.... 599, 600 n 1 n 600 V10 1, 2,...,.... 599, 600 MS: Imaging Mode Video Input: B1 Pixel 1.

16 Video Unit Video Input PAN: Imaging Mode Pixel 1...Pixel 600 Pixel 1...Pixel 600 Video chain Pixels number First pixel out n 1 n 600 n 1 n 600 n 1 n 600 v1 V2 V3 600, 599,...3, 2, 1 600, 599,...3, 2, 1 600, 599,...3, 2, 1 n 1 n 600 V4 600, 599,...3, 2, 1 PAN1 Detector n 1 n 600 V5 600, 599,...3, 2, 1 Video Output Pixel 1...Pixel 600 Pixel Pixel 1 n 1 n 600 n 1 n 600 n 1 n 600 V6 V7 V8 1, 2,..., , 600 1, 2,..., , 600 1, 2,..., , 600 n 1 n 600 V9 1, 2,..., , 600 n 1 n 600 V10 1, 2,..., , 600 MS: Imaging Mode Video Input: B1 Pixel 1.Pixel 1500 Vos2 Vos4 Physical Pixels number (on ground) n 1 n 1500 pin57 pin1 n 1 n 1500 n 1 n 1500 n 1 n 1500 n 1 n 1500 B3 B4 B2 B1 DTC_a B4a B1a B2a B3a First pixel out 1, 2, ,1500 1, 2, , , 1499,...3, 2, , 1499,...3, 2, 1 Video Outpu: B1 Pixel 1500.Pixel 1 pin29 pin28 Vos1 Vos3 16

17 Instrument Control Unit 17 Instrument Control Unit Interface between On-board computer and Ingenio Instrument by MIL-1553B bus Control and management of different components of Ingenio instrument: Thermal control module: acquisition and digitalisation of temperature sensors and generation of commands to activate heaters Control of VSU and VU by generation of switching commands and acquisition of housekeeping telemetries Generation and distribution of synchronism signals for video generation Manage the counters for image datation Fully redounded unit Two FPGAs

18 PPE Architecture 18

19 Current status Qualification model in assembly, integration and test: Qualification test campaign of Proximity Electronics finished CCD Detectors integrated with the 4 proximity electronics and assembled in Focal Plane Focal Plane assembled in Qualification testing Video Unit qualification finished Video Supply qualification finished Instrument Control Unit qualification finished Next step: Integration of Focal Plane with Video Supply, Video Unit and Instrument Control Unit Afterwards test and integration of all flight units Next program : Meteosat Third Generation Video Unit for Imager instrument Video Unit for Sounder instrument Data Processing Unit for Sounder instrument 19

THANK YOU FOR YOUR ATTENTION 20 C/Einstein, 7 (P.T.M.) 28760 Tres Cantos Madrid - SPAIN Tel.

20 THANK YOU FOR YOUR ATTENTION 20 C/Einstein, 7 (P.T.M.) Tres Cantos Madrid - SPAIN Tel.: (+34) Fax: (+34) comunicacion.espacio@thalesaleniaspace.com

Fabien Jordan Electrical System Engineer Space Center EPFL Muriel Noca SwissCube Project Manager.

Fabien Jordan Electrical System Engineer Space Center EPFL fabien.jordan@epfl.ch Muriel Noca SwissCube Project Manager Space Center EPFL muriel.noca@epfl.ch SwissCube Project Small Satellite Conference,