sana space assigned numbers authority

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SANASpace Assigned Numbers Authority

The Space Assigned Numbers Authority (SANA) is the core registrar for the CCSDS Management Council’s activities. Many space mission protocols require that someone keep track of key protocol numbering assignments that were added after the protocol came out. Typical examples of the kinds of registries needed are:

Spacecraft Identifiers (GSCIDs)Protocol Version NumbersReserved Application Process Identifiers (APIDs)SFDU Control Authorities

The SANA provides this key configuration management service for CCSDS.

Likewise, there are many different data objects that need to be globally accessible within the CCSDS in order to support mission planning and operations and the activities of CCSDS itself. A “Data Object”, within this context, is defined as any known or imagined participant in mission communications, planning, and operations or trajectory propagation, tracking, attitude determination and orbit determination.

Examples are:Protocol entities and assigned numbersSLE port numbers, service providers and protocol numbersCCSDS global XML schema and related structuresGround and space tracking stations (individual antennas; maybe complexes)Orbiters, Rovers, Landers, balloons, airplanes, stations Multi-part spacecraft and constellations that substantially separate sometime during the mission

This web-site provides a single interface for accessing the CCSDS-controlled registries and CCSDS data objects required for supporting mission planning and operations as well as the activities of CCSDS itself.

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Overview of CCSDS Technical Areas

The following figure represents a conceptual mapping of the CCSDS’ six technical Areas to elements of an end-to-end space data system:

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In addition to the protocols and services identified in the protocol layer model, the CCSDS is developing a suite of Space Link Extension (SLE) services designed to extend the space link and enable spacecraft control and data acquisition from terrestrial locations remote from the ground station terminus of the space link. The organization has also developed Recommendations for a wide array of data description and archiving standards to support end-user handling and storage of telemetry data.

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CCSDS Space Communication Protocols

The model depicted here is a five-layer model sometimes used to represent the protocol layers of Internet-type data communication. It is a simplification of the OSI seven-layer model, with the OSI Session and Presentation layers omitted.

Existing CCSDS Recommendations for space data system protocols and services designed for use on the space link (the communications link between a spacecraft and ground station) are shown in blue. The Internet protocols, in gray, are included to show how they fit into the CCSDS protocol “stack” when used in conjunction with the CCSDS Link and Physical layers.

In addition to the protocols and services identified in the model, the CCSDS is developing a suite of Space Link Extension (SLE) services designed to extend the space link, specifically, to enable spacecraft control and data acquisition from terrestrial locations remote from the ground station terminus of the space link. The organization has also developed Recommendations for a wide array of data description and archiving standards to support end-user handling and storage of telemetry data.

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*Click on a protocol in the diagram for more information

Click on the “Telemetry”, “AOS” or “Telecommand” box or the “Data Link” layer.

Click on the “Telemetry”, “AOS” or “Telecommand” box or the “Data Link” layer.

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Telemetry (TM) Space Data Link Protocol

The Telemetry (TM) Space Data Link Protocol is one of four CCSDS developed protocols for the Data Link Protocol Sublayer of the Space Communication Protocols Data Link Layer.

The TM Space Data Link Protocol is usually used for (but not limited to) sending telemetry from a spacecraft to a ground station (I.e., on a return link).

Protocol Specification

For a detailed description of the TM Space Data Link Protocol, refer to the TM Space Data Link Protocol. Red Book and the TM Space Data Link Protocol. Blue Book.

Identifiers

Identifiers used by the TM Space Data Link Protocol are detailed in the Space Link Identifiers. Blue Book. and are also listed here.

Additional Related Documents and Links

Overview of Space Link Protocols. Green Book. The purpose of this report is to provide an architectural overview of the space link protocols recommended by CCSDS and to show how these protocols are used in space mission data systems.

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Telecommand (TC) Space Data Link Protocol

The Telecommand (TC) Space Data Link Protocol is one of four CCSDS developed protocols for the Data Link Protocol Sublayer of the Space Communication Protocols Data Link Layer.

The TC Space Data Link Protocol is usually used for (but not limited to) sending commands from a ground station to a spacecraft (i.e., on a return link).


For a detailed description of the TC Space Data Link Protocol, refer to the TC Space Data Link Protocol. Red Book and the TC Space Data Link Protocol. Blue Book.

Identifiers

Identifiers used by the TC Space Data Link Protocol are detailed in the Space Link Identifiers. Blue Book. and are also listed here.



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Advanced Orbiting Systems (AOS) Space Data Link Protocol

The Advanced Orbiting Systems (AOS) Space Data Link Protocol is one of four CCSDS developed protocols for the Data Link Protocol Sublayer of the Space Communication Protocols Data Link Layer.

The AOS Space Data Link Protocol may be used on a return link alone, or on both forward and return links if there is a need for two-way on-line communications (e.g., audio and video) between a spacecraft and the ground.


For a detailed description of the AOS Space Data Link Protocol, refer to the AOS Space Data Link Protocol. Red Book and the AOS Space Data Link Protocol. Blue Book.

Identifiers

Identifiers used by the AOS Space Data Link Protocol are detailed in the Space Link Identifiers. Blue Book. and are also listed here.



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Space Packet Protocol

The Space Packet Protocol is one of 2 CCSDS developed protocols for the Network Layer of the Space Communication Protocols.

The Space Packet Protocol provides the capability to efficiently transfer processed data over space links and the capability for routing data through a space data system.

The protocol data units of the Space Packet Protocol are called Space Packets.

This protocol does not provide a function for retransmitting lost or corrupted data, so retransmission should be done by a higher-layer protocol if complete delivery of data is required.

Over a space link, protocol data units of this protocol are transferred with Space Data Link Protocols.


For a detailed description of the Space Packet Protocol, refer to the Space Packet Protocol. Red Book.

Identifiers

Identifiers used by the Space Packet Protocol are detailed in the Space Link Identifiers. Blue Book. and are also listed here.


Space Packet Protocol–Summary of Concept and Rationale. Green Book.. The purpose of this report is to provide a summary of concept and rationale of the Space Packet Protocol.

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SCPS Network Protocol (SCPS-NP)

The SCPS Network Protocol (SCPS-NP) is one of 2 CCSDS developed protocols for the Network Layer of the Space Communication Protocols.

The SCPS-NP provides a variety of addressing and routing capabilities, some of which are compatible with the Internet, and can be used with SCPS or Internet upper-layer protocols.

The protocol data units of SCPS-NP are called datagrams.

This protocol does not provide a function for retransmitting lost or corrupted data, so retransmission should be done by a higher-layer protocol if complete delivery of data is required.

Over a space link, protocol data units of this protocol are transferred with Space Data Link Protocols.


For a detailed description of the SCPS-NP, refer to the Space Communications Protocol Specification (SCPS)–Network Protocol (SCPS-NP). Blue Book.

Identifiers

Identifiers used by the Space Packet Protocol are detailed in the Space Link Identifiers. Blue Book. and are also listed here.


Space Communications Protocol Specification (SCPS)–Rationale, Requirements, and Application Notes. Green Book.. The purpose of this report is to provide a summary of concept and rationale of the Space Communications Protocols.

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CCSDS IdentifiersCCSDS uses identifiers to identify protocols, addresses, and data formats it has developed. And even though some of these identifiers are defined in the Recommendations that specify the protocols, management of identifiers are performed independently of management of protocol specifications so that values of the identifiers can be defined (or re-defined) without changing the protocol specifications themselves.

Each identifier is managed by one of the three methods listed below depending on its characteristics:

a) defined by CCSDS as part of protocol specification;b) assigned by CCSDS upon request by Agencies;c) managed by individual projects.

CCSDS Identifiers include:

a) Space Link Protocol Identifiers,b) Control Authority Identifiers (CAIDs),c) Data Description Identifiers (ADIDs), andd) Spacecraft Identifiers (GSCIDs/SCIDs)

Some Identifiers managed by projects (not defined or assigned by CCSDS) have values reserved by CCSDS for special uses. The Identifiers with reserved values are:

a) Application Process Identifiers (APIDs)b) Virtual Channel Identifiers (VCIDs)

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The “Control Authority Identifiers (CAIDs)” link will be a direct link to: http://ssdoo.gsfc.nasa.gov/nost/caa/macao_list.html and will open in a second window.

The “Control Authority Identifiers (CAIDs)” link will be a direct link to: http://ssdoo.gsfc.nasa.gov/nost/caa/macao_list.html and will open in a second window.

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CCSDS Space Communication Protocol IdentifiersMost of the Space Communication Protocols developed by CCSDS use identifiers (or version numbers) to identify protocols, addresses, and data formats. Each identifier is managed by one of the three methods listed below depending on its characteristics:

a) defined by CCSDS as part of protocol specification;b) assigned by CCSDS upon request by Agencies;c) managed by individual projects.

The table below lists the Space Communication Protocols that use identifiers. For more information regarding the identifiers used by a specific protocol, click on the protocol name in the table.

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Protocol Has Reserved Values Protocol Layer(s)

CCSDS File Delivery (CFDP) No Application/Transport

SCPS-TP No Transport

Space Packet Yes Network

SCPS-NP No Network

Telemetry (TM) Yes Data Link

Telecommand (TC) Yes Data Link

Advanced Orbiting Systems (AOS) Yes Data Link

Proximity-1 YesData Link/Synch & Channel Coding/Physical

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Authority Data Description Identifiers (ADIDs)

All data descriptions registered with the SFDU Control Authority organization are uniquely identified by an Authority Data Description Identifier (ADID), where:

ADID = CAID + DDID

where CAID = the Control Authority Identifier, which uniquely identifies the MACAO; and DDID = the Data Description Identifier, which uniquely identifies the data description

within a given MACAO.

Data descriptions are available from both the Control Authority (CA) Agent and Member Agency Control Authority Organizations (MACAO). Those data descriptions which are available from the CA Agent have been assigned a CCSDS ADID. The CCSDS ADID is formulated as follows:

CCSDS ADID = CCSDzzzz

where CCSD = the CAID for the CA Agent; and zzzz = the DDID, composed of four Restricted ASCII characters (i.e., 0-9, A-Z) which,

combined with the CAID, make the CCSDS ADID unique in the CCSDS domain.

The MACAO ADID is formulated as follows:

MACAO ADID = xyyyzzzz

where xyyy = the CAID for that MACAO; and zzzz = the DDID, composed of four Restricted ASCII characters which, combined

with the CAID, make the MACAO ADID unique in the CCSDS domain.

Data Description Registration, Search and Retrieval

To register a new data description or retrieve a registered data description, click here.

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SFDU Control Authority Organization

The Control Authority organization is the mechanism within the SFDU concept for ensuring that the descriptions of data will always exist and that the location of the data description and software to interpret the data can readily be found from information contained in the data set.

Each data description within the Control Authority organization is given a unique identifier. This unique identifier (Authority Description Identifer or ADID) is part of the standardized label included with the application data and identifies both a particular Member Agency Control Authority Office (MACAO) as well as a particular data description within that MACAO. In this way, any user acquiring the application data is able to identify the particular MACAO where the data description is registered and obtain the data description.

Control Authority Organization Structure

The Control Authority Organization is made up of:

- the CCSDS Secretariat, supported by the Control Authority (CA) Agent ;- a number of Member Agency Control Authority Offices (MACAOs).

The CCSDS Secretariat, established by the CCSDS, is the Control Authority Office to which all MACAOs ultimately report.

Both Member and Observer Agencies of the CCSDS may participate in the Control Authority organization and are referred to as Participating Agencies. A Participating Agency must establish a Primary MACAO, which is the official Agency contact with the CCSDS Secretariat.

Related Documentation

For information regarding the Control Authority Procedures (including services provided by the Control Authority organization), refer to the Standard Formatted Data Units – Control Authority Procedures Tutorial. Green Book.

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CCSDS Standard Formatted Data Units (SFDUs)

<<< This might just open up to the NOST SFDU Support Office page, or whatever is deemed to be best source(s) of information regarding SFDUs.>>>

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*Click on one of the gray technical area , “WG” or “BOF” boxes for more information.

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IPSecSCPS-SP Security Protocol

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denotes service access point

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SE Technical AreaReference Architecture

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Cross Support Services Technical AreaSLE Reference Model

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• Identifies abstract model for subsequent definition of SLE Transfer services and SLE ServiceManagement (Data Exchange view shown below)

• Baseline document for all other SLE recommendations

• Identifies and provides definition (at a high level) for• Mapping between SLE Data Units, and SL Data Units• Transfer services and what they delivery• SLE System, MDOS, Complex Management, Utilization Management and Management Utilization

Entities• Service Management Scope

SLE management

data exchange

Space elementmanagement data

exchange

Space

Element

Space Link

Extension

System

Mission DataOperation

System

forward and return

data exchange

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POS I T I ON CH AI R DEPU T Y

CESG C h air A. Hooke/NASA N. Pecc i a/ESA

SE A rea Director P. Sha m es/NASA T. Ya m ad a /JAXA

1.1 Syste m s Arch i te c ture W G T.Ya m ada/JAXA E. Soerensen/ESA

1.2 Secur i ty W G H. W e i ss/NASA G. Kenney/BNSC

1.3 Inf o r m at io n Arch i tect u re W G D. Cr i chton/NASA

1.4 SANA BOF P. Sha m es/NASA

M O IM S A rea Director N. Pecc i a/ESA R. Tho m pson/BNSC

2.1 Data Arch i v e Ingest io n W G D. Sa w yer/NASA C. Huc/CNES

2.2 Nav i gat i on W G F. F lo res/NASA M . Pa ll aschke

2.3 Info. Pack . & Reg i str i es W G L. Re i ch/NASA S. Hughe s/NASA

2.4 S/C M on + Co n tro l W G M . M e r r i /ESA R. Tho m pson/BNSC

CSS A rea Director G, Lapa i a n /CNES

3.1 SLE Ref. M o d e l W G H. Ke lli her/BNSC

3.2 SLE Data T rans. Svcs W G Y. Doat/CNES

3.3 SLE Serv i ce M g m t. W G E. Bark l ey/NASA

3.4 SLE Nav. Svcs BOF

3.5 SLE RAD BOF

SO I S A rea Director P. P l ancke/ESA C. P l u mm er/ESA

4.1 Onb o ard Bus + LAN W G R. Schnurr/NASA C. P l u mm er/ESA

4.2 T i m e Cr i t O/B Net Svc W G S. Parkes/BNSC J. M arq u art/NASA

4.3 T i m e Cr i t O/B Apps. W G A. Sengupta/NASA S. Fo w e ll /BNSC

4.4 Onb o ard p lu g - p l ay B O F P. Dav i d/ESA

4.5 Onb o ard Tran s ducer B O F C. P l u mm er/ESA

4.6 W i re l ess BOF P. P l ancke/ESA A. Sengupta/NASA

SLS A rea Director J - L. Ge r ner/ESA G. M our y /CNES

5.1 RF & M o du l at i on W G E. Vassa ll o/ESA

5.2 Space L i nk C o de/Sync. W G G - P. Ca l zo l ar i /ESA

5.3 Data C o m p. W G P - S. Yeh/NASA

5.4 Space L i nk P r otoco l s W G G. Kazz/NASA

5.5 TC Ch a nne l Cod in g W G G - P. Ca l zo l ar i /ESA

5.6 Rang i ng W o rk i ng G roup E. Vassa ll o/ESA

5.7 Pro x - 1 Bu ild - 2 W G G. Kazz/NASA

5.8 Lon g Eras. Code s BOF G - P. Ca l zo l ar i /ESA

S I S A rea Director R. Durst/NASA D. Stanton/BNSC

6.1 CFDP Int e rop. Test i ng W G R. Carper/NASA M . C i ccone/ESA

6.2 Unack. CFDP E x tens io ns W G S. Bur l e i gh/NASA

6.3 Packet Proto c o l W G D. Stanton/ BNSC

6.4 C i s l unar W G K. Scott/NASA

6.5 DTN BOF S. Bur l e i g h/NASA

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Identifiers Used By Space Data Link Protocols

The following table lists the Identifiers used by the Space Data Link Protocols and indicates how they are managed. Click on the name of the Identifier in the table for information regarding defined, reserved or assigned values for that Identifier.

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Identifier Used byManagement

Method

Transfer Frame Version Number

TM, TC, AOS, Prox Defined by CCSDS

Spacecraft Identifier (SCID)

TM, TC, AOS, Prox Assigned by CCSDS

Virtual Channel Identifier (VCID)

TM, TC, AOS, Prox Managed by projects

Frame Secondary Header Version Number

TM Defined by CCSDS

MAP Identifier (MAP ID) TC Managed by projects

Port Identifier (Port ID) Prox Managed by projects

CLCW Version Number TC Defined by CCSDS

Packet Version TM, TC, AOS, Prox Defined by CCSDS

Protocol Identifier Encapsulation Packet Defined by CCSDS

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Identifiers Used By the TM Space Data Link ProtocolThe following table lists the Identifiers used by the TM Space Data Link Protocol and indicates how they are managed. Click on the name of the Identifier in the table for information regarding defined, reserved or assigned values for that Identifier.

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Identifier Also Used byManagement

Method


TC, AOS, Prox Defined by CCSDS


TC, AOS, Prox Assigned by CCSDS


TC, AOS, Prox Managed by projects

Frame Secondary Header Version Number

Defined by CCSDS

Packet Version TC, AOS, Prox Defined by CCSDS

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Identifiers Used By the TC Space Data Link ProtocolThe following table lists the Identifiers used by the TC Space Data Link Protocol and indicates how they are managed. Click on the name of the Identifier in the table for information regarding defined, reserved or assigned values for that Identifier.

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Method


TM, AOS, Prox Defined by CCSDS


TM, AOS, Prox Assigned by CCSDS


TM, AOS, Prox Managed by projects

MAP Identifier (MAP ID) Managed By projects

CLCW Version Number Defined by CCSDS

Packet Version TM, AOS, Prox Defined by CCSDS

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Identifiers Used By the AOS Space Data Link ProtocolThe following table lists the Identifiers used by the AOS Space Data Link Protocol and indicates how they are managed. Click on the name of the Identifier in the table for information regarding defined, reserved or assigned values for that Identifier.

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Method


TM, TC, Prox Defined by CCSDS


TM, TC, Prox Assigned by CCSDS


TM, TC, Prox Managed by projects

Packet Version TM, TC, Prox Defined by CCSDS

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Defined Transfer Frame Version Numbers

In the Transfer Frames defined by the Space Data Link Protocols and Proximity-1 Space Communication Protocol (see references in table below) , there is a field called the Transfer Frame Version Number to identify the Transfer Frame. This is a two-bit field and its values are defined by CCSDS as part of the protocol specifications.

The following table lists the Transfer Frame Version Numbers currently defined by CCSDS.

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Version Number

Binary Encoded Version Number

Transfer Frame Reference

1 00 TM Transfer Frame TM Space Data Link Protocol. Red Book.

1 00 TC Transfer Frame TC Space Data Link Protocol. Red Book.

2 01 AOS Transfer Frame AOS Space Data Link Protocol. Red Book.

3 10 Version 3 Transfer Frame Proximity-1 Space Link Protocol. Red Book.

NOTES

1 Version Number ‘1’ is assigned to both TM Transfer Frame and TC Transfer Frame. These two Transfer Frames are distinguished by the Attached Sync Marker defined in TM Synchronization and Channel Coding. Red Book or the Start Sequence defined in TC Synchronization and Channel Coding. Red Book.

2 In the field of Transfer Frame Version Number in the Transfer Frames, the Binary Encoded Version Number listed above must be used.

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Reserved Virtual Channel Identifier

Though Virtual Channel Identifiers (VCIDs) are managed by Projects, a value of the VCID is reserved by CCSDS for special use in the AOS Space Data Link Protocol. The following Table lists the VCID currently reserved by CCSDS.

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VCID (binary)

UtilizationReference

111111 Idle Transfer Frames AOS Space Data Link Protocol. Red Book.

No value of the VCID is reserved by CCSDS for the other Space Data Link Protocols.

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Defined Frame Secondary Header Version Numbers

In the optional Transfer Frame Secondary Header defined by the TM Space Data Link, there is a field called the Frame Secondary Header Version Number to identify the Transfer Frame Secondary Header. This is a two-bit field and its values are defined by CCSDS as part of the protocol specifications.

The following table lists the Frame Secondary Header Version Number currently defined by CCSDS.

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Version Number


Frame Secondary Header

Reference

1 00 Version 1 Frame Secondary Header

TM Space Data Link Protocol. Red Book.

NOTE - In the field of Frame Secondary Header Version Number in the Transfer Frame Secondary Header, the Binary Encoded Version Number listed above must be used.

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Defined CLCW Version Numbers

In the CLCW defined by the TC Space Data Link, there is a field called the CLCW Version Number to identify the CLCW. This is a two-bit field and its values are defined by CCSDS as part of the protocol specifications.

The following table lists the CLCW Version Number currently defined by CCSDS.

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Version Number


Frame Secondary Header

Reference

1 00 Version 1 CLCW TC Space Data Link Protocol. Red Book.

NOTE - In the field of CLCW Version Number in the CLCW, the Binary Encoded Version Number listed above must be used.

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Defined Packet Version Numbers

In the Packets carried by the Space Data Link Protocols , there is a field called the Packet Version Number to identify the Packets. This is a three-bit field (see NOTE 2 below) and its values are defined by CCSDS as part of the protocol specifications.

The following table lists the Packet Version Numbers currently defined by CCSDS.

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Version Number


Packet Reference

1 000 Space Packet Space Protocol. Red Book.

2 001 SCPS-NP Space Communications Protocol Specification - Network Protocol (SCPS-NP). Red Book.

3 010 (See NOTE 2 below) IP Version 4 Datagram Internet Protocol.

8 111 Encapsulation Packet Encapsulation Service. White Book.

NOTES

1 In the field of Packet Version Number in the Packets, the Binary Encoded Version Number listed above must be used.

2 The version number field of the IP version 4 Packet has four bits and contains binary values of ‘0100’. However, the CCSDS Space Data Link Protocols recognize only the first three bits of this field as the Packet Version Number.

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Identifier Used By the Space Packet ProtocolThe following table shows the identifier used by the Space Packet Protocol and how it is managed. Click on the name of the Identifier in the table for information regarding defined, reserved or assigned values for that Identifier.

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Identifier Management Method

Application Process Identifier (APID) Managed by projects

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Reserved Application Process Identifiers (APIDs)

Though Application Process Identifiers (APIDs) of the Space Packet Protocol are managed by Projects, some values of the APID are reserved by CCSDS for special uses. The following Table lists the APIDs currently reserved by CCSDS.

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APID (decimal)

UtilizationReference

2040-2044 Reserved for possible future use

2045 CFDP CCSDS File Delivery Protocol (CFDP). Blue Book.

2046 ISO 8473 Information Technology - Protocol for Providing the Connectionless-Mode Network Service: Protocol Specification.

2047 Idle Packet Space Packet Protocol. Red Book.

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Login Status:


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Graphical View

To navigate to the detailed information for a specific earth station based on its associated Tracking System or geographical location, click here for a graphical display of the distribution of CCSDS ground stations.

Database Search

To search the CCSDS Ground Station database for the list of stations that match a set of specified characteristics, click here.

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* Click on the Tracking System of interest for more information.

To show the concept, click on any of the “CNES”, “ESA” or “DLR” boxes.

To show the concept, click on any of the “CNES”, “ESA” or “DLR” boxes.

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* Click on the antenna of interest for more information.Click on “Kerguelen”

Click on “Kerguelen”

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* Click on the antenna of interest for more detailed information.

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Login Status:


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Location: Kerguelen IslandsAntenna Diameter: 10 meters

Summary information for Kerguelen Station:

For detailed characteristics, click on the area of interest below:

a) Earth-to-Space Linkb) Space-to-Earth Link c) Radio Metric d) Frequency and Timing Systeme) Geographical and Mechanical

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For additional detailed characteristics of the Kerguelen Station, click on the area of interest below:

a) Earth-to-Space Linkb) Space-to-Earth Link c) Radio Metric d) Frequency and Timing Systeme) Geographical and Mechanical

Return to the Kerguelen Station Summary.

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Define a set of specified characteristics and search the CCSDS Ground Stations database for the list of stations that match your criteria.

Simple Search

Note: Where no selection is specified, all values are considered acceptable for that parameter.

Advanced Search

To search on additional criteria, use the Advanced Search.

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CCRS

CLRC/RAL

CLTC

CNES

CRL

CSA

Agency/Subnetwork:

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4.6

6.1

9

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11

Antenna Size (meters):

VHF/UHF

L-band

C-band

X-band

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Ka-band

Frequency Band:

Submit

CCSDS Protocols



Click the “Submit” button to see results of the query containing the highlighted parameter values.

Click the “Submit” button to see results of the query containing the highlighted parameter values.

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CCSDS Earth Station Database Simple Search Results

Search Criteria Specified:

Agency/Subnetwork = “CNES” or “CSA”

Antenna Size = 10 meters

Frequency Band not specified

Results List, summary information:

*Click on the station of interest in the results list above for more detailed information about that station.

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Only the Kerguelen station is active for demonstration.

Only the Kerguelen station is active for demonstration.

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CCSDS Earth Station Database Advanced Search

<<<< The advanced search will look a lot like the CCSDS Docushare “Power Search” that gives the user the ability to define search criteria ousing boolean expressions no database fields not accessible in the simple search.>>>>

CCSDS Protocols

