Wallops report presentation (1)

NOAA COMMAND AND DATA ACQUISITION STATIONNOAA COMMAND AND DATA ACQUISITION STATION

DCS POINT OF CONTACT

• WCDA Station’s first point of contact for help is the DCS Help Desk at 757-824-7450 or 7451

• Email is [email protected] with copies to [email protected]

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

•Wallops supports 24/7 operations

DCS Configuration

• Wallops now supports demods for two complete spacecraft (120 channels each)

• One spare drawer on site (40 channels)

• To date three demod failures

• Preliminary testing has been conducted on the 100/300 baud concept (using the spare demods).

Wallops LRGS Configuration

• The demodulators for both East and West continue to feed the LRGS directly.

• This means that the primary LRGS (cdadata) is not dependent on DAPS. Use this as primary.

• The receive site (drot) gets its data from the DOMSAT downlink which is heritage DAPS data.

• We now have a third site (cdabackup).• Wallops supported the STWIG sub-committee

considering LRGS configuration, distribution, etc.• 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

• LRIT traffic to Suitland is dependent on the Internet• Transfer of data to Suitland continues to be a “double”

single point failure• LRIT data is returned to Wallops via T-1 lines. LRIT is an

advantage to international users because DOMSAT is limited to CONUS.

• LRIT now has full East/West data streams • An automatic re-transmission (one time) has been

implemented.• 1 meter antenna receives full LRIT stream• There are no re-occurring costs associated with LRIT

reception.

Current Spacecraft Status• GOES-12 remains primary (75) for East• GOES-11 has been transitioned as primary

West (135) spacecraft• GOES-10 is positioned (60) for the South

American mission. Imagery operations began in Nov 06

• GOES-9 was de-commissioned on 14 Jul 07• GOES-13 was tested and placed in storage. It

was brought out of storage in July 07 for testing. • GOES-O launch is scheduled for Summer 08.

Wallops Backup

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

• Wallops staff has remote control/status capability of the WBU systems including the pilot from Wallops.

DOMSAT Frequency Change

• The final transition to the new DOMSAT frequency was June 13, 2007

• New frequency is 11,817.5Mhz.• All other parameters (pointing angles, modem

settings, etc.) remain the same.• Transition went smoothly.

DAPS

• Wallops has experienced data base issues (mid November). Updates had to be re-entered.

• DAPS-B is now primary and has been since November.

• Still supporting telnet (205.156.2.173/178)• Working with OSDPD in the migration to 300/1200

baud channels. • The Weather Service link has been transitioned to

the MPLS (8 Jan 08). We are seeing fewer dropouts.

• Wallops Operations verifies the DCS pilot daily.• No problems during the end-of-year transition.

GOES-12 Anomaly

• A North/South maneuver in November resulted in an anomaly of GOES-12.

• A leak in a thruster line resulted in the spacecraft being out of service for more than a week.

• During this time GOES-10 was used for DCPR

• In addition EMWIN and LRIT products were transmitted through GOES-10

DADDS

• The DCS Alternate Data Distribution System (DADDS) provides a separate means to distribute data from the demods should DAPS A & B fail.

• Testing was conducted at Wallops Oct 07.• The system has been used on an as-needed

basis.• Currently DADDS will support NWSTG and

DOMSAT traffic.• Training for Wallops Operations staff is

scheduled for the week of 4 Feb.

Multiple Data Sources

• We currently support-– DOMSAT (primary)

– LRGS (cdadata, cdabackup, drot)– Telnet (data base updates)– LRIT– NWS Telecommunications Gateway– Dial-in