4300.1 SMOC Hardware Requirements. Major hardware is listed by quantity below.
Unit | Quantity |
FEDS/DHDS | 1 |
On-line Archive | 1 |
Workstation (IBM RS 6000) | 4 |
Personal Computers | 6 |
Science Processing Workstation | 2 |
XTERM | 3 |
CD or DVD Writer | 1 |
Postscript Printer | 1 |
4300.2 A total aggregate space requirement of 800 square feet (contiguous) is required. Below is a list of requirements by unit and element.
Unit | Element | Description | Height (in.) | Width (in.) | Depth (in.) | Remarks |
SC Workstation (IBM RS 6000) |
P200 Power PC |
Monitor Processor |
19 6.5 |
19 17 |
19 19 |
rotatable |
Personal Computer | Dell | Monitor Processor |
20 22 |
19.5 8 |
20 18 |
tower |
XTERM | NCD-HMX | Monitor Processor |
20 3 |
19 16 |
22 14 |
|
7206 001 | Tape Drive | 3 | 11 | 11.5 | stackable | |
Mirror Disk | SCSI Bootbox | Hard Drive | 7.5 | 13.5 | 17 | stackable |
External | Hard Drive | 6 | 10 | 12 | stackable | |
Postscript Printer | HP Laserjet 4M | Page Printer | ||||
FEDS/DHDS | Monitor Alpha Server |
Processor |
14.5 18.5 |
14.5 14 |
16 24 |
|
Science Processing Workstation |
Monitor Alpha Server |
Processor |
14.5 18.5 |
14.5 14 |
16 24 |
|
CD or DVD Writer | Optical Storage | Data Distribution | ||||
Monitor | 14.5 | 14.5 | 16 |
4300.3 The baseline SMOC system shall require a minimum of 11 20A standard 110 Vac circuits. Unit electrical power requirements are listed below.
Unit | Element | Description | VAC | A | Service |
SC Workstation (IBM RS 2000) |
P200 Power PC |
Monitor Processor |
110 110 |
1.7 4.0 |
Single phase |
Personal Computer | Dell | Monitor Processor |
110 110 |
2 5 |
Single phase |
XTERM | NCD-HMX | Monitor Processor |
110 110 |
3 5 |
Single phase |
7206 001 | Tape Drive | 110 | 1 | Single phase | |
Mirror Disk | SCSI Bootbox | Hard Drives | 110 | 3 | Single phase |
external | Hard Drive | 110 | TBD | Single phase | |
Postscript Printer | HP Laserjet 4M | Page Printer | 110 | 6.4 | Single phase |
CD or DVD writer | TBD | Data Distribution | 110 | Single phase | |
Science Processing Workstations |
Alpha Server | Server Monitor |
110 110 |
2 |
Single phase |
FEDS/DHDS | Alpha Server | Server Monitor |
110 110 |
2 |
Single phase |
Monitor | 110 | 2 | Single phase |
4300.4 Other facility considerations: 4300.4.1 Heating, Ventilating and Air Conditioning (HVAC): The SMOC systems are free standing units requiring minimal air conditioning. The temperature for the SMOC shall be between 65 and 85 degrees Fahrenheit. 4300.4.2 Humidity: The humidity shall be between 40 and 60 percent. 4300.4.3 Maintenance: Periodic hardware maintenance will be required for SMOC systems. Software maintenance is required in support of Build releases and interim system releases. SMOC voice telephone requirements are provided in Section 5000. Response: Requirements will be met.
4420.1 Ground system operations shall require a human presence of no more than one 8-hour shift five days per week. 4420.2 Normal Operations: IOC (l+41 - EOM) TLM: 1 hour/day, 2-45 min contacts CMD: 1 hour/day, 2-45 min contacts TRK: 30 minutes/day doppler (2-15 min contacts); 10 minutes/day ranging (2-5 min contacts) Maintenance: 4420.3 The spacecraft flight software shall be maintained by the LMMS. 4420.4 The instrument flight software shall be maintained by the SwRI. 4420.5 Hardware and software maintenance shall be required at GSFC and at the launch site. Response: Requirements will be met.
b. Testing external to GSFC (L-16 months)
c. Launch
d. On-orbit checkout and nominal operations
Voice Loop Services: Voice conferencing capabilities shall be provided at each operational and launch site. A single voice line will be terminated at the test control center.
Integration and Test: Testing at GSFC will be performed using the IMAGE S/C, payload, observatory, DSN, and the GSFC SMOC. A command and data link is required between the SMOC, LMMS, DSN, SwRI, and WR for testing and operations phases. NISN voice and data links shall be provided for these areas as shown in tables 5-1 and 5-2.
Launch Site: Testing at WR will require communications to support Launch site integration testing and mission simulations.
Support during launch will require voice and data lines at WR, GSFC, and DSN.
The launch site facility is at Bldg. 836. NISN shall provide the required voice and data lines as shown in Tables 5-1 and 5-2 for launch site testing and the IMAGE launch.
Mission Operations Facilities: On-orbit checkout and nominal operations will require standard voice and data circuits between GSFC and DSN
NISN shall provide ground data delivery of command and telemetry data. Telemetry data shall be sent from the DSN NOCC at JPL to the SMOC at GSFC. Commands shall be sent from the SMOC to the NOCC. The data transport interfaces between GSFC and JPL shall be used for the entire IMAGE mission. The DSN and NISN shall provide the resources to accommodate concurrent operations for the IMAGE and MAP projects (even though they are both operated from the SMOC, they are operationally separate).
RT telemetry data shall be throughput from the stations to the SMOC. Recorded dump data shall be available in its entirety for file transfer to the SMOC from the DSN within two hours of the EOP. DSN procedures shall not require a manned presence in the SMOC for S/C contacts to allow IMAGE to operate in a lights-out mode.
Radio Metric information acquired by DSN shall be transferred to the FDF during all phases of mission support, using IP-encapsulated 4800 bit blocks.
Science instrument commands and planning information shall be transmitted from SwRI to the SMOC over Internet. Complete science packages (science and S/C data) shall be transported from the SMOC to the NSSDC via GSFC's local network. NSSDC shall provide a data archiving function and shall provide public access to this data.
The SMOC shall maintain a complete raw data history for IMAGE, with remote access provided (upon request) to the engineering and science teams.
The SMOC and DSN shall have all the required voice and data lines as shown in Tables 5-1 and 5-2 for on-orbit checkout and nominal operations.
IMAGE ground system elements are located as follows:
GSFC: SMOC (Bldg.3), MAR (Bldg. 3), FDF (Bldg. 28), NISN (Bldg. 3/14). DSN: Station facilities: Madrid, Canberra, and Goldstone. Support facilities: NOCC (JPL), CDR (JPL). WR: I&T Facility (Bldg. 836, Bldg. EEB, Bldg. 1610) LMMS: I&T Facility (Bldg.107, Bldg.156)
5010.1 The SMOC shall have telephones available to each workstation location for the SCT's use. 5010.2 The SMOC shall provide phone mail to at least one workstation location. 5010.3 The SMOC shall provide at least one workstation location with long distance phone dialing capability. 5010.4 The SMOC shall be supported by the Voice Distribution System (VDS) with units available to each workstation location. Response: Requirements will be met.
5020.1 The SMOC shall support the automatic transfer of non-quicklook data products to the NSSDC for archival. 5020.2 The SMOC shall support the automatic transfer of all of the data products to the IMAGE WWW server. 5020.3 The SMOC shall support the receipt of the science activity plan from SwRI via E-mail. 5020.4 The SMOC shall support receipt of VC0 & VC1 real-time and VC2 & VC3 playback data via a network interface. 5020.5 The SMOC shall provide a network interface to transmit CCSDS format commands to the DSN. Response: Requirements will be met.NISN
5020.8 NISN shall provide a network interface to transmit VC0 & VC1 real-time and VC2 & VC3 playback data from WR to the DSN. 5020.9 NISN shall provide a network interface to transmit CCSDS format commands from LMMS to the DSN. Response:WR
5020.10 The WR shall support the receipt of CCSDS format commands from the DSN. Response:
Table 5000-1: Ground-to-Ground Data Transport Requirements
# | From | To | Data Source | Data Rate | Type | Schedule |
1 | DSN | SMOC | S/C TLM, OBC Dumps, SSR P/B | <= 2,285,700 bps |
RT and FTP | L-13 to EOM |
2 | SMOC | DSN | S/C CMD | 2 kbps | RT | L-13 to EOM |
3 | SMOC | LMMS | S/C CMD | 2 kbps | RT | L-16 to L-1 |
4 | LMMS | SMOC | S/C TLM, OBC Dumps, SSR P/B | <= 2,285,700 bps |
RT | L-16 to L-1 |
5 | DTF21 | CTT (LMMS) |
S/C CMD | 2 kbps | RT | L-12 to L-5 |
6 | CTT (LMMS) |
DTF21 | S/C TLM | <= 2,285,700 bps |
RT | L-12 to L-5 |
7 | DTF 21 |
CTT (VAFB) |
S/C CMD | 2 kbps | RT | L-2 to L |
8 | CTT (VAFB) |
DTF21 | S/C TLM | <= 2,285,700 bps |
RT | L-2 to L |
Table 5000-2: Ground-to-Ground Voice Transport Requirements
# | Connections | SCAMA Voice Loop | Schedule |
1 | WR/DSN/SMOC/FDF/LMMS/MAR | Launch Coord. | L-3 to L |
2 | WR/DSN/SMOC/LMMS/MAR/FDF | Delta Coord. | L-3 to L |
3 | WR/SMOC/LMMS/DSN/MAR/FDF | Launch Status | L-3 to L |
4 | SMOC/DSN/LMMS/MAR | Mission Ops. Coord. | L-20 to EOM |
5 | WR/SMOC/LMMS/MAR | Spacecraft Net 1. | L-3 to L |
6 | WR/SMOC/MAR | Spacecraft Net 2. | L-3 to L |
# | Connections | CCL Voice Loop | Schedule |
1 | SMOC/MAR | Mission Planning Coord. | L-20 to EOM |
The SMOC will perform Level-0 processing on received instrument data. Level-0 processing is defined as the extraction of all telemetry packets for each instrument, removing duplicate packets, and putting them into spacecraft time order. These files will be made available on the SMOC web site, copied to CD ROM/DVD for each instrumenter team, but not forwarded to the NSSDC.
The SMOC will execute SwRI-provided program(s) which will convert the Level-0 files into Instrument Definition Files System (IDFS) files, and will make these files available on the SMOC web site, copy them to CD ROM/DVD, and forward them to the NSSDC for permanent archive and public access.
The SMOC- hosted WWW site will also be used to distribute IMAGE project documentation, data processing status reports, select spacecraft health and status information, and links to the investigator sites.
The SMOC is responsible for processing spacecraft ephemerides received from the DSN and generating orbit products needed for science data interpretation and operations planning.
For more details refer to the IMAGE PDMP.
6010.1 The SMOC shall process telemetry data into Level-0 files. Level-0 files contain telemetry data packets in spacecraft time-order, with duplicate packets removed. 6010.2 The SMOC shall perform Level-0 processing automatically and immediately upon receipt of the playback telemetry from the DSN during the current pass. This processing is done so that instrument telemetry data is made available to the instrument teams as rapidly as possible. This immediate Level-0 processing is called Quicklook. 6010.3 The SMOC shall generate one Quicklook Level-0 file per instrument per pass. 6010.4 The SMOC shall make these Quicklook Level-0 files available on the SMOC web server for a period of at least one week but no more than two weeks. 6010.5 The SMOC shall maintain a log of quicklook Level-0 processing. 6010.6 The SMOC shall perform Level-0 processing a second time, several days after the playback telemetry was received from the DSN. This delay allows time for recovery of data lost during previous passes. The Level-0 files shall contain one day’s worth of data. 6010.7 The SMOC shall generate one 24-hour Level-0 file per instrument per day. 6010.8 The SMOC shall make these 24-hour Level-0 files available on the SMOC web server for a period of at least one week but no more than 2 weeks. 6010.9 The SMOC shall forward these 24-hour Level-0 files to the NSSDC for permanent archive and public access. 6010.10 The SMOC shall write these 24-hour Level-0 files to CD-ROM/DVD for distribution to PI-selected investigators. 6010.11 The SMOC shall maintain a log of 24-hour Level-0 processing and transfers. Response: Requirements will be met.
6015.1 The SMOC shall provide for the execution of SwRI provided C program(s) to convert Quicklook Level-0 files into IDFS files. 6015.2 The SMOC shall maintain a log of the execution of this program(s). 6015.3 The SMOC shall make these 'quicklook' IDFS files available via the IMAGE www-server. 6015.4 The SMOC shall provide for the execution of SwRI-provided C program(s) to convert 24-hour Level-0 files into IDFS files. 6015.5 The SMOC shall maintain a log of the execution of this program(s). 6015.6 The SMOC shall make these ‘24-hour' IDFS files available via the IMAGE www-server. 6015.7 The SMOC shall write these 24-hour IDFS files to CD-ROM/DVD for distribution to PI-selected investigators. 6015.8 The SMOC shall forward these 24-hour IDFS files to the NSSDC for permanent archive and public access. 6015.9 The SMOC shall provide the means for IMAGE instrumenters to ftp new and updated Virtual Instrument Definition Files (VIDF) to the SMOC. These files contain the instrument calibration data required to convert the instrument data from counts into calibrated engineering units. Response: Requirements will be met.
6020.1 The SMOC shall provide for the execution of SwRI-provided C program(s) which export data into CDF files from IDFS files. Response: Requirements will be met.
6025.1 The SMOC shall produce displays in the form of GIF and/or MPEG files, which are hereafter, called Browse Products (BP). These displays will be generated from either the IDFS or CDF files, using either SwRI-provided plotting s/w, or IDL plotting s/w. 6025.2 The SMOC shall keep all BPs on the IMAGE www server through the end of the nominal 2-year mission operation. 6025.3 The SMOC shall produce a 'mission-composite' GIF showing simultaneous images from all of the instruments onboard. 6025.4 The SOC shall write these BPs to CD-ROM/DVD for distribution to PI-selected investigators. Response: Requirements will be met.
6030.1 The SMOC shall produce CD-ROMs/DVDs on a weekly basis for PI-selected investigators. 6030.2 These CD-ROMs/DVDs shall include the 24-hour IDFS files and the 24-hour Level-1 files produced during the previous week of the mission. 6030.3 The SMOC shall ship the CD-ROMs/DVDs to the PI-selected investigators. 6030.4 The SMOC shall maintain a CD-ROM/DVD generation log. Response: Requirements will be met.
6100.1 The SMOC shall maintain a WWW-server for the IMAGE mission through EOM. 6100.2 The SMOC shall make the latest 2 weeks of Level-0 files available on the WWW-server for downloading. 6100.3 The SMOC shall make the latest 2 weeks of Level-1 files available on the WWW-server for downloading and browse/display. 6100.4 The SMOC shall make Mission Documentation and data processing history available on the WWW-server. 6100.5 The SMOC shall make all 'mission-composite' GIFs and/or MPEGs available on the www server for download and display. 6100.6 The SMOC shall make the latest 2 weeks of IDFS files available on the www server for downloading. Response: Requirements will be met.
During nominal science operations the DSN shall perform ranging operations during the last 5 minutes of every pass. Doppler radio metric data shall be collected for all contact periods. Ranging shall be done during all launch and early orbit supports. All of the raw radio metric data shall be collected by the DSN, and forwarded in near real-time to the SMOC and Flight Dynamics Facility (FDF) at GSFC for preprocessing. The DSN shall store no less than 48 hours of raw radio metric data to support possible retransmission of lost data. The FDF shall store at least 30 days of raw and preprocessed radio metric data, but shall have no further requirements for data storage or archival. The raw radio metric data sent to the SMOC and FDF shall be in the JPL DSN TRK-2-15A formats. While the IMAGE spacecraft is tracked by the 26-meter subnet, the Doppler (range-rate) data shall comply with the STDN 724 UTDF format as well.
The orbit determination will be performed by DSN and verification and permanent data archival functions are performed within the SMOC. The FDF shall provide raw radio metric data to the SMOC via FTP so that the data may be archived in the SMOC. The FDF shall also provide a capability to the SMOC for timely (less than 5 minutes) FTP retrieval of preprocessed data in a format usable by the Goddard Trajectory Determination System (GTDS). The SMOC will use GTDS to perform the orbit determination and propagation functions within the SMOC. The DSN shall generate all of the acquisition data and planning products required for antenna pointing and the SMOC shall have this capability as a backup.
The spacecraft performs attitude determination. The spacecraft attitude determination requirement is 0.1 degree based on data from the autonomous star tracker. The lack of sufficiently accurate redundant sensors on-board the spacecraft limits any ground calibration requirements though the ground can validate normal performance of the onboard attitude determination system.
During the early operations and deployment phase, the SMOC shall be responsible for monitoring the reorientation of the spacecraft and taking any necessary corrective actions prior to the deployment of the RPI antennas. The SMOC shall monitor and control the deployment of the RPI antennas, and calculate the observatory’s moments of inertia.
7100.1 The SMOC shall provide an attitude determination capability. 7100.2 The SMOC shall validate that the onboard attitude estimate is within 0.1 degree of its actual attitude. 7100.3 The SMOC shall provide a list of spin axes based on the ground ephemeris data. Response: Requirements will be met.
7200.1 The SMOC shall perform definitive orbit determination, definitive orbit propagation, and predictive orbit propagation. 7200.2 The maximum error permitted in the definitive orbit ephemeris shall be 50 kilometers of uncertainty, 3 sigma. 7200.3 The maximum error permitted in the predictive orbit ephemeris shall be 50 kilometers of uncertainty, 3 sigma. 7200.4 The SMOC shall perform orbit determination as necessary to meet the definitive and predictive requirements. 7200.5 The SMOC shall generate acquisition data in the JPL P-file format, and transmit the data to JPL. 7200.6 The SMOC shall generate short term planning products. 7200.7 The SMOC shall generate the acquisition data and short term planning products after each delivered orbit determination update. 7200.8 The SMOC shall generate long term planning products of 2 years duration every 3 months, and place those products on a website for retrieval by DSN personnel. The product will support DSN loading studies and long term scheduling activities. 7200.9 The SMOC shall provide a 3 week ephemeris for science data planning. 7200.10 The SMOC shall receive processed and raw radio metric data from the FDF. 7200.11 The SMOC shall permanently archive all radio metric data. Response: Requirements will be met.
7201.1 The FDF shall receive radio metric data from the DSN via NISN. 7201.2 The FDF shall receive the radio metric data in IP-encapsulated 4800 bit blocks. 7201.3 The FDF shall process the received data and provide the SMOC the capability to retrieve the latest received data within 5 minutes of receipt. 7201.4 The FDF shall provide the received data in a format directly usable in GTDS. 7201.5 The FDF shall archive at least 30 days of preprocessed radio metric data. 7201.6 The FDF shall archive at least 30 days of raw radio metric data. 7201.7 The FDF shall provide the SMOC the capability to retrieve the data in raw format as requested by the SMOC. Response: Requirements will be met
Author and Curator:
Dr. D.R. Williams, dwilliam@nssdc.gsfc.nasa.gov, +1-301-286-1258