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January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Ecliptic Enterprises Corporation RocketCam TM Digital Video System (DVS)

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Presentation on theme: "January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Ecliptic Enterprises Corporation RocketCam TM Digital Video System (DVS)"— Presentation transcript:

1 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Ecliptic Enterprises Corporation RocketCam TM Digital Video System (DVS) NASA GSFC THEMIS DVS January 13, 2005 David Yoel, Business Development Lead 610-225-2604 dyoel@eclipticenterprises.com dyoel@eclipticenterprises.com

2 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Agenda / Contents l Ecliptic Enterprises Corporate Overview l RocketCam Objectives l THEMIS Requirements l Digital Video System l Implementation

3 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Ecliptic Enterprises l Employee/investor-owned small business in Pasadena, CA. l Extensive staff expertise in: n Systems Engineering n Electrical & RF Engineering (Systems and Hardware) l Staff has made significant contributions to ~45 space & launch projects (that resulted in something launched): n Earth-orbiting and deep-space missions n Shuttle-based missions/payloads n Launch-vehicle development efforts n …with numerous recognitions and awards (incl. a named asteroid) l Facilities for development/integration of small space systems

4 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Ecliptic’s Business Focus Ecliptic provides data-transport systems and onboard imaging systems for use with rockets, spacecraft and other remote platforms. Bringing Space Home. When Your Mission Depends On It.

5 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. History of Success

6 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. RocketCam Spacecraft Missions l Selected for Use on Various Spacecraft (2004+): l Several additional spacecraft programs pending Customer / ProjectEcliptic-Supplied EquipmentStatus Orbital DART Analog end-to-end system (camera, transmitter, antenna) 2005Q1 Launch Spectrum Astro STP R-1 Digital Video System (DVC, cameras, EGSE) 2005Q1 Launch Spectrum Astro NFIRE Digital Video System (DVC, cameras, EGSE) 2006 Launch (pending)

7 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Digital Video System l Cameras n Analog NTSC cameras n In aerodynamic pods or not l Digital Video Controller n Video data capture, compression, storage, encryption n Power supply, control, and automatic sequencing n Radio transmitter l Other Flight Equipment n Antennas and cables l Ground System Equipment n Preflight test and preparation (charging) equipment n Ground stations n Video data decompression, re-assembly, and distribution

8 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Mission l Five THEMIS probes attached to Probe Carrier

9 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Mission l 68 Minutes After Launch in Eclipse n The 3rd stage is spun up to 15 ±2 RPM. n 8 minutes later, the 3rd stage and fairing are jettisoned and probe deployment initiated. n During deployment, Probe A attached to the upper tier is separated first. Three seconds later Probes B, C, D and E are simultaneously separated from the lower tier.

10 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Mission l Deployment System n Marmon band held in tension by separation bolt threaded through a release spring. n Bolts severed at both ends by two pyrotechnic bolt cutters. n Separation springs located beneath each probe push probe forward and away

11 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS DVS Application l Provide n Video confirmation of each bolt cutting event n Video confirmation of probe deployments. l Constraints n No natural lighting n No real time downlink, DVS must store video and downlink after deployment n Limited clearance between the Probe Carrier and Delta II payload fairing preclude the attachment of a camera or other optical interface to the outboard ends of any of the lower deck platforms

12 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Imaging Approaches l Line of Sight n Upper Deck Probe A: Camera placed at the Probe Carrier bolted interface below the Probe Carrier Center Deck and pointed in the direction of the Probe A separation system. n Lower Deck Probes B, C, D and E Cameras attached to the inboard portion and bottom side of the lower deck platforms. Cameras attached to the Probe Carrier Central Cylinder below the lower deck platforms. l Fiber Optic n Various fiber optic imaging configurations to improve imaging over that obtained with line-of-sight means.

13 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Proposed Baseline System l Baseline DVS n A DVS consisting of a multi- channel Digital Video Controller (DVC) and several ruggedized cameras with custom mounts. n This configuration is based on existing cameras and support electronics that will have been delivered to at least two other space flight programs before the required need date.

14 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. Basic Digital Video Controller l Compressor Board n 8-input video mux n Wavelet compression rather than DCT Has no temporal compression artifacts (unlike MPEG-2) Has better behavior at high compression than JPEG n CCSDS packetization w/ Reed-Solomon FEC n Non-volatile memory for video data recording and playback n Frames can be time-tagged using metadata. l Power Support Board (PSB) n DC-DC converters (3.3 V primary; 5 V; 12 V for cameras) n Load power switches (for 8 cameras, 4 lights) n DVC command interpreter “Capture images from Camera 3 to storage.” “Downlink last 10 minutes of stored video.” n DVC autonomous command sequencer

15 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. l Camera is a Ruggedized COTS CCD-based Unit n Selected for small size, and CCD and AGC performance. n Ecliptic ruggedizes COTS unit using proprietary procedures. n Output is analog NTSC. n 70+ flight heritage. Proposed Baseline System

16 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. l Custom Camera Mount Based on Ecliptic Standard Bracket n < 200 g (camera, lens, mount) n Standard Bracket can accommodate illumination source Proposed Baseline System

17 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. DVC Mechanical l Chassis n Boards housed in single 3U cPCI chassis. n Connectors: MIL-C-38999 circular (L/V) or D-sub (S/C). n Construction: machined 7075 aluminum, chem-filmed. l Envelope n Footprint:190 mm x 140 mm (nominal) 230 mm (w/ circular connectors) x 160 mm (widest) n Height:~ 20 mm * (n + 1); n = slots. 140 mm for 6-slot solution l Mass n ~2.7 kg (compressor, power support, transmitter, battery, chassis, circular connectors)

18 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Trade Study Resources n Analytical Graphics Inc. (AGI), Satellite Tool Kit (STK) Separation and Probe Deployment Animations n STK Trajectory Animations l Camera Resolution and FOV n With the Probe Carrier spinning, the lower deck probes can only be imaged while in the FOV of a particular camera. n To maximize the length of time the probes fall within the FOV, all line-of-sight imaging configurations assume a 3.5mm lens and all fiber optic configurations assume equivalent focal length optical terminations

19 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Video Confirmation of Bolt Cutters Actuation n Line-of-sight imaging of any of the bolt cutters precluded n Bolt cutter targets proposed Two thin, light and geometrically specific targets respectively attached to the brackets holding the bolt cutters in place. Operation of the bolt cutters can be positively inferred by motion of the targets

20 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line of sight Imaging Probe A n Camera located at the interface of the Probe Carrier Center Deck and the Probe B outer deck platform and pointed vertically in the direction of the Probe A separation system. n Provides an excellent view of the bolt cutter targets. n Direct imaging view of Probe A as it deploys is partially obstructed by the upper platform and its support structure

21 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Inboard, Bottom Side of Outer Deck, Pointed Radially. n Rejected because deployment trajectory includes a vertical component that exceeds the vertical viewing angle allowed by the platform

22 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached to Probe Carrier Central Cylinder Directly Below Outer Deck Platform, Pointed Toward Lower Deck Separation System. n Meets minimal requirements of confirming actuation of the bolt cutters and separation of the probes, although the quality of the separation imagery is diminished by the obstructions.

23 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached To Central Cylinder, 45° from Platform

24 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached To Central Cylinder, 45° from Platform n STK perspective image shows overlap of the FOV onto the platforms may not be sufficient to permit imaging of the bolt cutter targets. A variation on this approach, rotating the camera ~45° along its boresight to align the two bolt-cutter targets on the camera FOV diagonal, might provide adequate coverage..

25 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached To Central Cylinder, 22.5° Clockwise from Platform

26 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached To Central Cylinder, 22.5° Clockwise from Platform n STK perspective image suggests that the overlap of the FOV onto the nearer platform may provide a good view of the bolt cutter targets while retaining a view of the probes in the remaining portion of the FOV.

27 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging, Probe B, C, D and E n Attached To Central Cylinder, 22.5° Clockwise from Platform n STK animation suggests that this location offers an excellent view of the probe deployment but the view afforded of the bolt cutter targets is problematic. n With refinement of the camera placement, probably moving it closer to the strut, it is likely that a better view of the targets can be achieved while simultaneously imaging probe deployment.

28 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight Imaging Conclusions n Several line-of-sight camera locations were simulated using STK. Various locations were found to be workable, with varying degrees of image quality of the bolt cutter targets and the separating probes. Generally, locations with the most promise appear to be on the Probe Carrier Central Cylinder displaced about 22.5° from the center of the platform. n Additional simulations are expected to refine this location. The ultimate positioning of the cameras should be verified by experimentation on a spacecraft (cabling) mockup to identify a location that provides very clear imaging of the bolt cutter targets, positive confirmation of probe separation, and publicly appealing views of the probes' departure.

29 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l 7.5Fiber Optic Imaging of Probes and Bolt Cutter Targets n Several fiber-optic configurations were investigated. Trades were conducted on two configurations utilizing bifurcated fiber-optic bundles. 0.65 seconds after separationHo rizontal FOV Vertical FOV Bolt Cutter Target Imaging Area Probe Imaging Area, Reduced FOV Full FOV 0.65 seconds after separationHo rizontal FOV Vertical FOV n Bifurcated bundles permit separate FOVs to optimize views of both probe deployment and bolt cutter actuation.

30 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Fiber Optic Imaging of Probes and Bolt Cutter Targets n Fiber Optic Co- Linear Bifurcation. n Fiber Optic Perpendicular Bifurcation.

31 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Line-Of-Sight vs. Fiber Optics: Conclusions n While the separate FOVs possible using bifurcated fiber optics permits the independent placement of the fiber bundles' distal ends to provide optimized views of both probe deployment and bolt cutter actuation. The benefits of this approach are relatively modest compared with the lack of fiber optics flight heritage, Ecliptic’s general lack of familiarity and the consequent NRE and programmatic risk.

32 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Lighting n Distance from the probes to the camera increases n Probe A departs at approximately 0.5 m/s while the lower deck probes depart at about 1.16 m/s.

33 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Lighting n Ecliptic12 Volt Solid State Illuminator n Current switching limitation of Power Support Board requires 28 Volt version.

34 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Lighting, Ecliptic 12 Volt Solid State Illuminator: Qualitative Evaluation for THEMIS n Simple setup created to evaluate Ecliptic solid state illuminator for THEMIS. 50 cm by 55 cm (H x W) cardboard panel covered with white paper and strips of foil tape to represent the light colored painted surfaces and the reflective surfaces respectively of a THEMIS probe. Distance to the panel was increased in 1-meter increments from 1 meter to 4 meters, roughly corresponding to the lower deck probes' displacement during the first 4 seconds after deployment. n Test camera used an available 6 mm lens was set to f1.4. The lowest f-stop of the proposed 3.5 mm wide-angle lens is f1.8, so the resulting images expected to be slightly dimmer.

35 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Lighting, Ecliptic 12 Volt Solid State Illuminator: Qualitative Evaluation for THEMIS n Still images captured from recorded video. n Note that in the far-field pictures, the auto-gain of the cameras is being affected by the illumination of the facility walls, artificially reducing the recorded brightness of the target (relative to how it would be exposed in the real application. 1 Meter2 Meters 3 Meters4 Meters

36 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Lighting, Ecliptic12 Volt Solid State Illuminator: Conclusions n Ecliptic solid-state (LED-based) illuminator provides sufficient artificial light to be used with Ecliptic RocketCam cameras. n A derivative of this product will be needed to permit the Power Support Board to satisfy the requirement to support multiple cameras and lighting simultaneously and to be compatible with the mounting needs of THEMIS

37 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Channel Count n Lower deck probes deployed at the same time Video from the lower tier cameras need to be processed simultaneously. DVC must incorporate at least four channels of video compression and processing. n Top probe deployed axially Probe A well clear of the Probe Carrier when lower tier probes are deployed. Not susceptible to re-contact caused by instabilities in the Probe Carrier due to any anomalies associated with deployment of the bottom probes. n Short 2 to 2.5 second video of of Probe A sufficient to confirm successful deployment, permitting one of the required lower deck channels to be shared with Probe A

38 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Four Channel DVC n ED363131 Video Compressor Board converts input analog video to digital format; compresses and records the digital video data to flash memory. n ED363151 Serial Digital I/O Board used to merge signals from four compression channels into a single serial data steam for input to a transmitter for downlink. n ED363121 Power Support Board obtains 28V from battery, provides 12V and distributes power selectively to the cameras, illuminators and support electronics, sequences events’ communicates housekeeping and other telemetry information via I/O board to the ground. n Entire set of electronics housed in an ED366116, 6 slot, cPCI chassis which will be mounted on the underside of one of the lower deck platforms.

39 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Four Channel DVC and TX/Battery Assemblies

40 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l DVC Sequencing n Probe A bolt cutter/deployment confirmation: Upon SECO or some other precise event, a trigger is communicated to the DVC via an opto-coupled discrete, which starts an internal sequence. This sequence turns on power to the support electronics, illuminators and cameras, and configures the DVC for image capture. About 1 second prior to the deployment of Probe A, its video data stream is enabled. Probe A video data is then acquired for 2 to 2.5 seconds and stored in the onboard memory of the selected channel. n Probes B, C, D E bolt cutters/deployment confirmations: After acquisition and storage of data from the Probe A camera, lower tier camera selected to share this processing channel. Video data obtained simultaneously from each of the lower tier cameras imaging the lower tier probes for 10 to 15 seconds

41 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l DVC Playback n Playback of the acquired data can commence immediately or during a pre-programmed time interval to coincide with best access to a tracking station. n Two playbacks at different data rates are baselined to provide downlink margin. The two playbacks can be pre-programmed or initiated by the host TT&C via another of the opto-coupled discrete inputs. The system could also accommodate additional playbacks based on uplinked commands

42 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l DVS Ground Support Equipment (GSE) n Ecliptic ED368320 GSE provides support to the DVC in both test and operational environments. n Standard Pentium 4 class personal computer with Windows XP Professional and a PCI synchronous serial card to receive the high-speed data from the DVC. The GSE utilizes the Ground Support Equipment Operating System (GSEOS). l Host Interaction n 6 opto-isolated discrete inputs available in DVC, each of which can initiate a pre-programmed sequence.

43 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. l Stored Data n Based on the four channel DVS configuration and about record times, a total of about 250 Mb will be captured from the 5 cameras and stored in non-volatile memory. This data volume computation is shown in the following table THEMIS Trade Study and Results Probe Cameras Record Time (seconds/each) Data Volume A2 seconds2 s * 4 Mb/s = 8 Mb B, C, D and E15 seconds15 s * 4 Mb/s/channel * 4 channels = 240 Mb

44 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. l Link Budget THEMIS Trade Study and Results n Range to the USN remote ground station (RGS) in South Point, Hawaii at separation

45 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Link Budget n During the 150 s following separation, Probe Carrier and probes have a relatively constant range, supporting a relatively high data rate. n With a 2W transmitter and BPSK only (no Reed-Solomon or Viterbi error correction), a data rate of 2000 kbps can be supported, which allows the complete 250 Mb of stored data to be downlinked in 130 seconds. n By dropping the data rate down to 500 kbps, the entire load can be transmitted a second time in 520 seconds, n The data rate as a function of time is shown in the plot by the solid orange line. n This strategy provides data transport robustness through dual-redundant data transmission.

46 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l DVS Self-Powering n Battery capacity required to support THEMIS DVS event specific power profiles are satisfied by Ecliptic's standard 50 watt-hour battery EventComponents Powered Component Power (W) QtyTotal Component Power (W) Total Power (W) Event Duration (hr) Total Energy (W-hr) Pre-launchPSB Only313.0 2.0 *6.0 Launch to Separation PSB Only313.0 1.33.9 Image AcquisitionDVC, Cameras, Illuminators A/R 48.7 (17 sec. avg.) 48.70.0050.2 Downlink (665 seconds) DVC18118.043.00.187.9 Transmitter25125.0 Total Load18.0 Power Conversion Overhead (33%)6.0 Margin (100%)24.0 Total Battery Energy Requirement48.0 * Note: Pre-launch event duration (DVC disconnected from GSE charger) is estimated to be 2 hours

47 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Mass and Balance n The proposed DVC will be housed in a chassis that can accommodate up four compression channels. n The battery and transmitter will be housed in a cPCI, 3 slot, chassis to be mounted on the underside of the lower deck platform opposite to that on which the DVC is mounted to provide for a mass balance.

48 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Mass and Balance n Including the battery and illuminators the DVS will weigh less than 9.8 kg consisting of the following components whose approximated weights are shown below. Mass of Component (kg) Qty Required Total Mass (kg) ED360300 RocketCam Camera 0.2 5 1.0 ED363131 Video Compressor Board 0.17 4 0.7 ED363151 Serial Digital I/O Board0.2 1 ED363121 Power Support Board 0.3 1 ED366116 Chassis, cPCI, 6 slot 1.0 1 ED361215 S-Band Transmitter1.0 1 ED362125 Battery 2.0 1 ED366113 Chassis, cPCI, 3 slot1.0 1 ED360716 Solid State Illuminator 0.3 5 1.5 Power Splitter0.2 1 Antennas0.1 2 0.2 Total CBE 9.1

49 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Mechanical Interface n The DVC chassis can be mounted on the bottom side of one of the platforms via an adapter plate as shown below. n The chassis containing the transmitter and battery will be mounted in a similar fashion on the platform opposite to that of the DVC.

50 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Recommendations n Bolt Cutter Target s n Ecliptic standard cameras n Line-of-sight imaging of the upper deck bolt cutter targets and Probe A deployment provided by a camera located at the interface of the Probe Carrier center deck and the Probe B outer deck pointed vertically in the direction of the Probe A separation system. n Line of sight imaging of the lower deck bolt cutter targets and probes provided by camera placements on the Probe Carrier Central Cylinder. (The exact location and orientation to be further refined to optimize the simultaneous imaging of the probes and bolt cutter targets within the same line-of-sight FOV.) n Ecliptic solid state illuminators n DVC Self-powered n Dedicated RF Subsystem

51 January, 2005 Copyright © Ecliptic Enterprises Corp., 2005. All Rights Reserved. THEMIS Trade Study and Results l Programmatics n Almost no NRE n Mostly standard Ecliptic products with the exception of: New mounts to be designed and fabricated for the selected locations. 28 Volt Illuminator based on current 12 volt version n NRE tasks can proceed in parallel to the build of the DVC n Integration and test to support delivery of the system within 180 days ARO


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