A Conceptual Study of Visible Operations in satellite Operations

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A Conceptual Study of Visible Operations in
satellite Operations
Shinji Tokunaga, Tomohiro Kusunose Yoshihiko
Kakinuma, Akihiko Shinozaki

• Business Planning Division
• Space Engineering Development Co.,Ltd.

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Contents
1. Introduction 2. Operational information 3.
Consideration item 4. Visible operation
concept 5. Example of system configuration 6.
Conclusion
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1. Introduction
(1) The background of study for new utilization
of operational information
Due to development of information communications
technology and advancement of satellite System,
new utilization of (satellite) operational
information is necessary.
Development of information communications
technology
The new utilization of operational information
Advancement of Satellite System
Figure1 The background of study
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1. Introduction
(2) The concept study
The conceptual study is shown in the following
figures.
Consideration of Operational information

• Necessity
• -High reliability of operation
• -Management in an emergency
• etc.

The new utilization of operation information
Sharing and Visualization of operational
information
Classification of information
Definition of responsibility and understanding
range of informational level
Figure2 The process of concept study
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2. Operational Information
(1) The definition of operational information
Operational information can be defined 4
categories as the following.
1.Process information Operation
plan/Operation procedure/design
2.Operation result information The Telemetry
data sent from a satellite/ The command data to a
satellite/ Orbital determination value /
Satellite simulation data
Operational Information
3.Management information Personnel discernment
information / Personnel's schedule / Personnel
arrangement plan/ The connection procedure in an
emergency
4.Operation history information Operation
history / Fault
Figure3 The definition of operational information
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2. Operational Information
(2) Distribution of operational information
The operational information restricted to the
operation position in conventional satellite
operation was distributed, and, as for each other
information exchange, only necessary minimum was
carried out.
Ground system operation position
Satellite operation position
Orbital dynamics operation position
Restricted information interface
Restricted information interface
Ground system process information
Satellite process information
Orbital dynamics process information
Orbital dynamics operation result information
Satellite operation result information
Ground system operation result information
Orbital dynamics management information
Satellite management information
Ground system management information
Satellite operation history information
Orbital dynamics operation history information
Ground system operation history information
The interface of the operational information
restricted
Figure4 Conventional operational information
interface
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3. Consideration item
(1) For high reliability of operation
Satellite operation positions which operate a
satellite consist of satellite control, ground
network control, and orbital dynamics. In order
to perform reliable operation, Informational
sharing / visualization are needed for operation
by team.
Advancement of satellite
Reliable operation
Operation
-A lot of Information -Complicated Information
- Satellite control - ground Network control -
Orbital dynamics
- Satellite operations - Mission operations
- Earth observation etc
Sharing/Visualization of operational information
Figure5 Improvement of Operations Quality
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3. Consideration item
(2) For Management in emergency
In emergency, urgent correspondence becomes
complication because of a satellite complexity.
Moreover, the connection to several places etc.
becomes complicated. The level of state of
emergency is defined beforehand. In emergency,
the urgent level can be recognized with the
classified operational information. The
necessary information (Responsibility and
understanding range for information) of for
each position can be definition by classified
information.
Responsibility and understanding range for
information
-Gathering a lot of information at each
position -Recognition of urgent level with
information
Emergency
-Urgent operation of satellite -Urgent operation
of ground system -Urgent call/report
classified information
Figure 6 Management in emergency
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4. Visible operation concept
The new utilization of operational information -
Sharing and Visualization of operational
information - Classification of information -
Definition of Responsibility and understanding
range for information
Visible Operation
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4. Visible operation concept
(1) Sharing and visualization of information
Operational Information
Process information on a ground system
Operation history information on a ground system
Process information on a satellite
Operation result information on a satellite
Operation result information on a ground system
Management information
Operation history information on a satellite
Shared, visualized operational information
Information Management System
Non real-time information
Real-time information
Operator N
Operator B
Operator C
Operator D
Operator A
Operator A--N operation director, operator,
etc.
Figure8 Shared and visualization of informational
concept
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4. Visible operation concept
The operation information management system are
needed to share and visualize operational
information. Sharing and the visualized
operational information are distributed to the
necessary personnel including an operation staffs
in charge, an operator, and all the operation
staffs concerned if needed. Moreover, the
operation information for every operation
position is also sharable. By the operational
information management system, it is visualized
and, as for information required for operation,
sharing and the information according to an
operation staffs responsibility are distributed.
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4. Visible operation concept
(2) Classification of information

• The operational information can be classified as
  follows.

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4. Visible operation concept
- Operational information can be defined as
levels 1-4, and an operation information
management system offers information according to
the level.
- Operation process information is fundamental
directions information on operation. Therefore,
information is offered before operation to an
operation staffs . - Operation result information
is Telemetry data / command data, It is always
provided for an operation staffs. - Management
information is information, such as operation
staffs schedule change information and urgent
connection information. Those information is
effective in especially an off-nominal. -
Operation history information is the Operation
history / the fault information on past.
Especially those information is offered by demand
of the persons concerned.
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4. Visible operations concept
(3) Responsibility and understanding range for
information
The information understanding range is as wide as
a position with heavy responsibility. On the
contrary, the understanding range of
informational is as narrow as a position with
light responsibility. However, as for the
position with informational narrow understanding,
what the informational depth becomes deep is
expected. The necessary personnel only treating
the information that an information level is low
is an operator. An information level goes up
those who have taken the post of a responsible
position.
Responsibility
Informational level
Information understanding range
wide
heavy
high
A
B
A
- - -
B

N
N
narrow
low
light
Figure10 Responsibility range and information
understanding range
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5. Example of system configuration
As a system concept, for informational sharing /
visualization, a terminal will be installed in
the operation room, and information will be
displayed. In addition, this system concept is
considered for this the new utilization of
operational information. Therefore, the further
conceptual study also including implementability
is required.
?Requirements? (1) Correspondence to the
improvement in operation quality. (2) management
in emergency . (3) Rationalization and
validation of the whole operation.
Operation control rooms
Users/persons concerned
Operation control rooms
Terminal A
Terminal B
Terminal C
Terminal D
Terminal E
Terminal N

Communications networks
?System model concepts? -Inputting necessary
information into the server. (1), (2) -Displaying
necessary information on the terminal.(1),
(2) -The redundant configuration of the server.
(3)
Information Server
Process information
Operation result information
Management information
Operation history
Figure11 An example of the system concept
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6. Conclusions
Realization conceptual study of low cost has been
tackled we maintaining high operations quality
about a satellite operation system with
advancement of a satellite, and development of
information communication technology. In the
conceptual study process, informational sharing
and visualization were attained, and the new
operation concept Visible Operations" called in
it understanding range of an information level
setup / responsibility, and information in an
informational layered structure was created. The
further conceptual study is required so that a
new operation concept can be systematized as
reflection to future satellite operation systems
development.
Visible Operation
Development of information communications
technology
The new utilization of operational information
Advancement of Satellite System
Sharing and Visualization of operational
information
Classification of information
Responsibility range and information
understanding range
Figure12 The concept of new satellite operation
conclusion