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Summary
DescriptionMockup of JWST bus 009.jpg |
Note this is a mock-up of the bus not actual JWST spacecraft bus Text released with this photo At Northrop Grumman Aerospace Systems facilities in Redondo Beach, California, integration and test technicians work on a mock-up of the James Webb Space Telescope spacecraft bus, testing the assembly of its parts. The spacecraft bus will provide the necessary support functions for the operation of the Webb Observatory after it is launched into space in 2018. The bus is the home for six major subsystems: Electrical Power Subsystem Attitude Control Subsystem Communication Subsystem Command and Data Handling Subsystem Propulsion Subsystem Thermal Control Subsystem The Electrical Power Subsystem or EPS provides the power needed to operate the whole observatory. The EPS converts sunlight shining on the solar array panels into the power needed to operate the other subsystems in the bus as well as the Science Instrument Payload. The Attitude Control Subsystem senses the orientation of the Observatory, maintains the Observatory in a stable orbit, and provides the coarse pointing of the Observatory to the area in the sky that the Science Instruments want to observe. The Communication Subsystem is the ears and mouth for the Observatory. The system receives instructions (commands) from the Operations Control Center and sends (transmits) the science and status data to the OCC. The Command and Data Handling (C&DH) System is the brain of the spacecraft bus. The system has a computer, the Command Telemetry Processor (CTP) that receives commands from the Communications System and directs them to the appropriate recipient. The C&DH also has the memory/data storage device for the Observatory, the Solid State Recorder (SSR). The CTP will control the interaction between the Science Instruments, the SSR and the Communications System The Propulsion System contains the fuel tanks and the rockets that, when directed by the Attitude Control System, are fired to maintain orbit. The Thermal Control Subsystem maintains the operating temperature of the spacecraft bus. Webb is an international project led by NASA with its partners, the European Space Agency and the Canadian Space Agency. The James Webb Space Telescope is the successor to NASA's Hubble Space Telescope. It will be the most powerful space telescope ever built. |
Date | Taken on 16 December 2013, 11:44 (according to Exif data) |
Source | https://www.nasa.gov/content/goddard/mock-the-bus-nasas-james-webb-space-telescope |
Author | NASA |
Licensing
Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Original upload log
Date/Time | Dimensions | User | Comment |
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2016-12-13 14:31:58 | 4928× 3264× | Fotaun | {{PD-NASA}} https://www.nasa.gov/content/goddard/mock-the-bus-nasas-james-webb-space-telescope Note this is a mock-up of the bus not actual JWST spacecraft bus Text released with this photo At Northrop Grumman Aerospace Systems facilities in Redondo... |
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0.008 second
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18 millimetre
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:44, 23 January 2017 | 4,928 × 3,264 (5.38 MB) | FastilyClone | Transferred from en.wikipedia (MTC!) |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7000 |
Exposure time | 1/125 sec (0.008) |
F-number | f/5.6 |
ISO speed rating | 1,000 |
Date and time of data generation | 11:44, 16 December 2013 |
Lens focal length | 18 mm |
Width | 4,928 px |
Height | 3,264 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 13:21, 7 May 2014 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.3 |
Date and time of digitizing | 11:44, 16 December 2013 |
Meaning of each component |
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Image compression mode | 4 |
Shutter speed | 6.965784 |
APEX aperture | 4.970854 |
Exposure bias | 0 |
Maximum land aperture | 4.1 APEX (f/4.14) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, auto mode |
DateTime subseconds | 10 |
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DateTimeDigitized subseconds | 10 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.3.0.0 |
IIM version | 2 |