NOAA COMMAND AND DATA ACQUISITION STATIONNOAA COMMAND AND DATA ACQUISITION STATION

WCDAS Numbers

• DCS Help Desk at 757-824-7450 or 7451

• Contact Phil Whaley at (757) 824-7331 or Al McMath at (757) 824-7316

Wallops LRGS Configuration• No real changes to the LRGS• We continue to use version 7.0 as the standard• The cdadata server is consider the primary LRGS• The cdabackup server is considered the secondary LRGS which

mirrors EDDN• The drot should be considered a troubleshooting tool to verify the

DOMSAT downlink. • Wallops with the ability to simultaneously stream the DCS data to

the NSOF primary, backup, and the OSDPD Backup Facility (OBF) LRIT servers (Oct 09)

• Accounts are built through NOAA and shared with USGS

Wallops LRGS Configuration• Analysis by Microcom showed that EDDN and NSOF were receiving

99.5% of the data that is received at Wallops.• No real changes to the LRGS configuration since the last meeting• Sites and IPs:

– http://cdadata.wcda.noaa.gov (205.156.2.174)– http://drot.wcda.noaa.gov (205.156.2.186)– http://cdabackup.wcda.noaa.gov (205.156.2.189)

LRIT Status• Files built and transmitted every 30 seconds• Wallops is working with OSDPD to use the backup at Wallops

during periods of outages.• The OSDPD failover would be manual – not automatic• The fix for the “flooding” issue has been installed and is working

properly.• The DCS component of LRIT is transferred from Wallops to Suitland

(via Internet) and then back to Wallops (via T-1). • 1 meter antenna receives full LRIT stream• There are no re-occurring costs associated with LRIT reception.• LRIT issues in Mar 10

– Mar 19 – 22 replication down due to account problems– Mar 24 - Five minute outage due to socket problems– Mar 26 - four hour outage due to T-1 failure– Mar 28 - five hour outage due to T-1 failure (Verizon frame problem)

GOES EAST GOES WEST

Wallops TelComm Interface

LRIT WestPTP

Domain 5

GOES EastRF Uplink

Wallops CDA StationLow Rate Information Transmission (LRIT)

Service Level

Philip WhaleyWallops CDA11 June 2008

GOES WestRF Uplink

LRIT EastPTP

Domain 5

Suitland TelComm Interface

East LRITData Quality

Monitor

1.2 meter 1.2 meter

Domain 4OSDPD Suitland

GOES Data Collection

System (DCS)

The OSDPD facility interleaves several products together to

form the LRIT stream.

NWSSilver Spring

EMWIN

OSDPDSuitland

GOES East ImageryGOES West Imagery

-LRIT Imagery-EMWIN Subset

-DCS Data-Admin Ops Messages

West LRITData Quality

Monitor

Wallops CDASDCS Data

DCS Data

DCS Data

Wallops sends GOES DCS data to the Suitland Domain 4 processor, via Internet, where it is interleaved with the NWS EMWIN data, the Imagery data and Admin messages to form the LRIT Product.

TelcommInterface

Legend:Blue = Individual ProductsRed = LRIT Service

T1

Inte

rne

t

-GOES East Imagery-GOES West Imagery

-EMWIN Subset-DCS Data

-Admin Ops Messages

GOES EAST GOES WEST

Cat-5 Port Network Hub

LRIT West PTPDomain 5

CISCO 2610 RouterPOES Rack 24A0

GOES EastRF Uplink

Wallops CDASGOES Low Rate Information Transmission

(LRIT)Rack Level

Philip WhaleyWallops CDA16 June 2008

GOES WestRF Uplink

BPSK ModulatorAgilent Signal Generator

Model E4430B

BPSK ModulatorAgilent Signal Generator

Model E4430B

LRIT East PTPDomain 5

GOES TIFDS Rack 5AZ1

Data

73 MHz IFLRIT East

Wallops Comm Interface

Telcom Room

1.2 meter1.2 meter

1691 MHzDownlink

ESPCNSOF Suitland

GOES LRITRack 16AZ3

The East receiver sends the LRGS an

acknowledgement of DCS file reception to close the loop on the LRGS retransmission

feature.

The filter ensures that the “harmonic

rich” modulator doesn’t interfere with other GOES

services.

LRIT is a satellite specific service

GOES East LRITGOES West LRIT

2033 MHzUplink

73 MHz IFLRIT West

137.5 MHz IF

2033 MHzUplink

2met! DSR II West Receiver

West Receive ProcessorPC

Min

i Circ

uit

Mod

el N

BP

-70

BPFilter

Min

i Circ

uit

Mod

el N

BP

-70

BPFilter

2met! DSR IIEast Receiver

East Receive ProcessorPC

4 Port Control & Monitor KVM

Clock ClockClockClock Data

GOES EMWIN Rack 26A4

EMWIN Reciever

AC AC The Bias T provides

15 VDC to the antenna LNB and blocks DC to

the receiver.

Bias TBias T

NO

AA

500

4D

CS

LA

N

GOES DCS Rack 46A1

CDADATALRGS

The LRGS Generates DCS LRIT files and sends them to the ESPC via the Internet.

1691 MHzDownlink

137.5 MHz IF

Red line is transmit pathGreen line is receive path

Verizon BusinessCkt MGBH5L040001

GOES EAST

GOES WEST

Wallops TelComm Interface

Prime LRIT WestPTP

Domain 5

GOES EastRF Uplink

Wallops CDA StationLow Rate Information Transmission (LRIT)

Primary and Backup Plan

Philip WhaleyWallops CDA19 Feb 2010

GOES WestRF Uplink

Prime LRIT East PTP

Domain 5

Suitland TelComm Interface

East LRITData Quality

Monitor

1.2 meter

1.2 meter

Suitland OSDPDLRIT Domains 2-4

GOES Data Collection

System (DCS)

NWSSilver Spring

Suitland OSDPDDomains 2-3

GOES East ImageryGOES West Imagery

-LRIT Imagery-EMWIN Subset

-DCS Data-Admin Ops Messages

West LRITData Quality

Monitor

Wallops CDAS

DCS Data

Wallops sends GOES DCS data to the Suitland OSDPD Domain processors, via Internet, where it is interleaved with the NWS EMWIN data, the Imagery data and Admin messages to form the Primary LRIT Product.

TelcommInterface

Legend:Blue = Individual ProductsRed = LRIT Service

T1Internet

-GOES East Imagery-GOES West Imagery

-EMWIN Subset-DCS Data

-Admin Ops Messages

Backup LRIT EastPTP

Domain 5

Backup LRIT WestPTP

Domain 5

Wallops OBFFiber Interface

OBF LRIT Domains 2-4

NWSSilver Spring

Juniper Switch

OBFFiber Interface

DCS DataEMWIN

EM

WIN

DC

S D

ata

DCS Data

EMWIN

EMWIN

DCS Data

Wallops sends GOES DCS data and EMWIN to the OSDPD Backup Facility (OBF) Domain processors, via fiber runs, where it is interleaved with the Imagery data and Admin messages to form the Backup LRIT Product.

LRIT EastLRIT East

Wallops OBF

LRIT WestLRIT West

LRIT

Eas

t

LRIT

Eas

t

LRIT

Wes

t

LRIT

Wes

t

Spacecraft Status• GOES-11 is the primary West (135W) spacecraft

and it will remain so.• Batteries on GOES-11 look OK. We did not

have to use GOES-13 for DCS/LRIT/EMWIN during Spring eclipse.

• However, GOES-11 has only one command receiver that is functional

• GOES-14 is positioned (105W) and will remain active to support the XRS instrument

Spacecraft Status• GOES-P (GOES-15) was launched successfully

on March 4, 2010• Post Launch Testing successfully completed at

Wallops during the Spring of 2010• GOES-P/15 will be placed in storage due to 5

year warranty of the instruments. No plans to activate S/C at this point.

Spacecraft Constellation• GOES-10 was de-commissioned in Dec 2009 • GOES-13 is now prime East S/C (as of Apr 26)• GOES-13 will be first spacecraft to support

750Hz channelization (function of S/C power)• GOES-11 remains prime West S/C• GOES-12 started its drift (27 Apr) to support the

South Americans (May 2010)• GOES-14 will be in “storage” but still support

XRS (X-Ray Sensor)• GOES-15 will be in storage (T&C only)

Certification• October’s slide Phil needs to speak to this one• Version 2 (channel splitting & tighter receive filtering) of

Cert Standards ratified by OSD in Oct 2009• Three certification test sets to support the new standards

have been upgraded and are being deployed to vendors upon request

• It is not expected that 100bps will not be supported for certification after ver 2 standards are adopted (this is policy, only 4 years left on 100bps support).

• It has been proposed that the Wallops 300 & 1200bps test channels, for East and West, be upgraded to be compliant with the ver 2 certification standard.

Wallops Backup

• A second pilot remains active (channel 0) at the WBU. The frequency is 401.7MHz.

• Wallops Backup has been re-positioned to support GOES-13 as the prime East S/C

• LRIT and EMWIN equipment is at WBU & FCDAS still waiting for connectivity to OSDPD – multicast issue.

DAPS/DADDS

• IT team is working security –later slide• DADDS on-line as the primary DCS processing

system in Jan 2010• Transition began on Oct 5 DAPS/DADDS operations

were in parallel until Jan.• All services are now through DADDS• Three test transmitters installed, tested, and

accepted during the week of Apr 26.• Three pilot transmitters installed, tested, and

accepted during the week of Apr 26.• Wallops Operations verifies and reports the DCS

pilot levels daily.

DADDS

• A complete backup resides at NSOF. This includes the RF front end (demods) and the associated demodulators.

• GOES Incident Reports have been generated• Software release 3.051.5 in Apr 2010 addressed many

of these issues

DCS - Security

• Certification and Accreditation efforts began on Oct 1.

• C&A was completed on Mar 31

• We now have a 3 year Authority To Operate

• This includes the WCDAS and the NSOF

• Boundaries include Wallops and NSOF

• All of DADDS security H/W in place

• HTTPS on Wallops and the NSOF systems is now in place

DOMSAT

• Aug 31, 2010 marks the end of Option Period-8• The current contract with Americom Government

Services (AGS) expires September 2011 (Option period-9 the final option).

• Wallops in discussion with DOMSAT provider to identify modem options for consideration in follow-on DOMSAT contract discussions (x25 and 56k bandwidth may not be practical after FY12)