Status of the LIDO East Sicily Station F

Status of the LIDO East Sicily Station F. Bruni www. tecno mare. it

AGENDA § Work progress status § Payload § SN-1 observatory § Integrations § Surface station § HMI § Test program § Deployment procedure 2

LIDO East Sicily Station § Based on SN-1 seafloor observatory properly upgraded § Two missions successfully completed § 2002 -2003 (autonomous configuration) § 2005 -2008 (hybrid configuration, compatible with cabled or autonomous operation) 3

LIDO East Sicily Station § Maintained § Frame § MODUS-assisted deployment and recovery § Seismometer installation procedure § Interface with electro-optical cable § Sensors directly managed by SN-1 DACS § Modified/changed § All batteries removed § Acoustic telemetry removed § Mass memory devices removed § New optical telemetry § New power management and distribution § Scientific payload increased § Dedicated frame for magnetometers § Completely new Shore Station implemented § Sensors individually accessible from shore 4

SN-1 observatory general assembly Bioacoustic hydrophone DPG ADCP Magnetometers module DACS ROV mateable connector (in parked position) Depth sensor Bioacoustic bentosphere 5

SN-1 observatory general assembly Currentmeter Seismometer + release OAS hydrophone CTD Gravity meter SMID hydrophone Bioacoustic bentosphere Magnetometers module 6

Work progress status (Tecnomare) Activity Status Observatory upgrade Mechanical design Completed Observatory upgrade Mechanical construction Completed, except for minor supports Observatory upgrade Electrical design Completed Observatory Hardware upgrade development Completed Observatory Software development Completed Payload tests (on single sensors) Completed, apart from N/A sensors (currentmeter, gravity meter, SMID hydro) SN-1 observatory electrical integrations Completed, apart some minor tasks (jboxes) SN-1 observatory functional tests (electronics + payload) To be done, when all sensors shall be available Shore station power rack - design, development and test Completed Shore station control rack – integration and tests Ongoing HMI software development and test Ongoing Final tests (observatory + shore station) To be done 7

Payload Sensor Model LOCATION NOTES Seismometer Guralp CMG-1 T TECNOMARE Upgraded after previous SN-1 mission CTD Sea Bird SBE-37 SM TECNOMARE Used in previous SN-1 mission TO BE CALIBRATED Gravity meter IFSI INAF Currentmeter MAVS-3 Nobska NOBSKA Scalar Magnetometer Sentinel, 3000 m version INGV Vectorial Magnetometer Modello Piattaforma inerziale Ditta Sulas Sergio TECNOMARE Hydrophone 1 (geophysics) OAS E-2 PD TECNOMARE Previously used, Tested c/o NURC Hydrophone 2 (geophysics) SMID modello 70 XA 405 101 00 SMID ? NEW Bioacustics INFN NEW IMU Gladiator Technolgies LMRK 10 IMU-150 -02 -130 INGV NEW A 2 nd unit is c/o Tecnomare (LMLRK 20) Depth sensor (pressure) Paroscientific 8 CB 4000 -I P/N 1700 -003 -0 INGV NEW DPG (Differential Pressure Gauge) University of California San Diego DPG vs. 6. 3 TECNOMARE NEW ADCP RDI, Workhorse Sentinel 600 k. Hz WHS 600 -I-UG 149 INGV NEW Used in the 1 st Nearest Mission CURRENTLY C/O NOBSKA FOR REPAIR 8

SN-1 observatory general assembly 9

Magnetometer module layout Vectorial magnetometer (glass sphere) Weight in air : about 125 kg Lifting handle (hinged) Lifting handle (fixed) Weight in water: about 17 kg Scalar magnetometer Buoyancy elements (adjustable number and position) Magnetometers j-box 10

Magnetometers module layout 11

Mechanical frame status 12

Payload test: seismometer – DPG – OAS hydrophone Sensors: • Guralp CMG-1 T (s/n T 1049) • DPG vs 6. 3 (s/n 05057) • Hydrophone OAS E-2 PD (ex SN-4) Acquisition through Guralp DM 24 digitizer (s/n A 1699) - 100 Hz DATA ACQUISITION ELECTRONICS SEISMOMETER DPG HYDROPHONE 13

Seismometer and digitizer after upgrading work (Dec. 2008 – Nov. 2009) 14

Payload test: seismometer – DPG – OAS hydrophone 15

SN-1 electronics: DACS integration Ethernet – RS 232 converters Compass CPU, switch 24 -bit digitizer OPTICAL BOX (telemetry) DC Power supplies IMU (12, 24, 48 VDC) AC transformer 16

SN-1 electronics: magnetometers J-BOX Vectorial magnetometer electronics (power supply + 24 bit digitizer) integrated inside a dedicated pressure vessel 17

Shore station: power supply and control 18

Shore station: power supply rack Generates 500 VAC mono-phase for the observatory through a step-up isolation transformer Requires 230 VAC input Monitors the umbilical cable isolation Automatic and manual output voltage ramp control (soft start) Display of power status parameters (current in, voltage in, current out, voltage out, isolation resistance) Equipped with an intelligent unit (PLC) Transmit power status data through RS-232 connection to the HMI PC 19

Data acquisition rack: telemetry unit SC optical connectors to the surface OPTICAL BOX Data connections to SN-1 sensors: RS-232 Underwater LAN RJ 45 connectors 220 VAC GPS input (MIL) and telemetry (2 x SC) 20

HMI Control software 21

Final test program (proposal) Test 1 Where Purpose Description Actions Tecnomare (Marghera) Check of § SN-1 fully integrated §Power & data transmission §Data acquisition and management software §all payload (geophysics, oceanographic, bioacoustic and status sensors) connected to SN-1 DACS §Surface station connected via short test electrical and optical jumper cables §SN-1 operated via the shore station §Simulated missions carried out with realtime data acquisition from the Shore Station §INFN to provide surface telemetry §INGV to provide remaining sensors §INFN/INGV to provide dedicated units (PC for bioacoustics, geophysical sensors etc. ) to be connected to the data acquisition rack 22

Final test program (proposal) Test Where Purpose Description Actions 2 INFN (Catania) SN-1 shore station networking §Connect Shore Station to INFN network §Verify all Users have remote access to the various units §Verify GPS acquisition §INFN to make available ICT support §INFN to make available personnel for installation and connection of the Shore Station components 3 INFN (Catania) Final test of the system § Shore station installed and tested § SN-1 integrated and connected to Shore Station via simulated Umbilical cable §SN-1 operated via the shore station §Simulated missions carried out with real-time data acquisition from the Shore Station §Remote access from various Users verified §INFN to provide FO spools to simulate umbilical cable length and optical losses §Tecnomare to provide a power resistor to simulate the umbilical ohmic loss 23

Deployment and start-up procedure (preliminary for discussion) • ship final positioning on site • MODUS + SN-1 deployment • (winch) descent • (MODUS) final positioning and alignment with respect to INFN j-box • (winch) touch-down • (MODUS) disconnection • MODUS recovery • ROV deployment • (ROV) connection of the electro-optical jumper to INFN j-box • (shore station) Switch on power supply • (shore station) check of SN-1 observatory and payload status • (ROV) extract and deploy the magnetometers module • (shore station) check of magnetometers module • (shore station) release seismometer, start mission • ROV recovery 24