NPOESS Plans for McMurdo Station

1
NPOESS Plans for McMurdo Station

• Captain Gene Keselman
• NPOESS Integrated Program Office
• 24 October 06

2
Overview

• NPOESS Architecture
• System-Level Architecture
• Command, Communications and Control Segment
• SafetyNet
• McMurdo
• Overview of NPOESS IPO-National Science
  Foundation Agreement
• Receptor Details
• Satellite Communications Upgrade Plans
• Initial (low rate) service
• Final (high rate) service
• OPTUS D1 Satellite
• Coverage
• Schedule
• Summary

3
NPOESS System-level Architecture
GPS
SpaceSegment
NPOESS1330
NPOESS1730
Command ControlSegment
Svalbard
Field Terminal Segment
15 Globally DistributedReceptor Sites
CLASS
FNMOC
NAVOCEANO
AFWA
NESDIS/NCEP
Mission ManagementCenter (MMC)at Suitland
Alternate MMCat Schriever AFB
Interface Data Processing Segment
NOAA Comprehensive Large Array Data Stewardship
System
CLASS
NPOESS CMD/TLM
NPOESS HRD/LRD
NPOESS SMD
4
Command, Communications and Control Segment
Space
Segment
NPOESS
NPOESS
NPP
Svalbard
5
SafetyNet
McMurdo Station, Antarctica
6
System Latency (95)with McMurdo Receptor
7
System Latency (95)without McMurdo Receptor
8
McMurdo and Black Island

• McMurdo Station Ross Island
• 77.5S
• 166.6E (below Australia/New Zealand)

9
Overview of NPOESS IPO-National Science
Foundation Agreement

• NOAA/NESDIS/IPO (NPOESS) entered into an
  agreement with the National Science Foundation on
  Aug 9, 2006 to
• Host and maintain 2 NPOESS SafetyNet receptors
  in/around McMurdo
• Implement and maintain a shared satellite
  communications link into/out of McMurdo
• Why McMurdo? It is a vital SafetyNet site
  planned for NPOESS
• Location, location, location!!!
• High latitude location (77.5 S) is the most
  significant contributor to achieving data latency
  as specified in the NPOESS contract
• Only SafetyNet site in southern hemisphere that
  sees every orbit of polar-orbiting satellites
• Collaborative approach is best value for both
  agencies
• Each party does what they do best

10
Receptor Details

• Receptor will receive NPOESS environmental data
• Manufacturer/Model Number Titan System 1053
• Ground aperture size/type 4.06 meter diameter
  shaped paraboloid
• Gain to Noise Temperature (G/T) 32.6 dB/K
  nominal clear sky, 5 degrees above local horizon,
  17C 29.4 dB/K nominal with a rain/snow rate of
  80 mm/hr, 5 degrees above local horizon, 17C
• Maximum receive gain 58.2 dBi nominal, clear sky
  with radome
• Beamwidth 0.2 degrees nominal
• Bandwidth of system 500 MHz for 3dB BW centered
  at 26.70 GHz
• Antenna off-axis gain Per ITU-R Rec. S.465-5
  within /- 3 degrees of boresight see calculated
  3 pattern
• Pattern mask /- 180 degree co cross polarized
  calculated antenna patterns per ITU-R Rec.
  S.465-5 except for subreflector scatter 5 to
  10, 2 dB, feed spillover 26 to 45, 5 dB,
  and back lobe 180, 20 dB regions
• Height (including pedestal)
• Ground mount pedestal and antenna 5.2 meters.
• Ground mount including Ratech radome and
  ringwall 6.2 meters.

11
Communications Upgrade

• 2-Phase Upgrade
• LOW RATE - Initial satcomm service would begin in
  January 2008
• 10 Mbps bi-directional service
• HIGH RATE - Final satcomm solution in place by
  2010
• NPOESS allocated asymmetric
• 50 Mbps outbound (NPOESS Stored Mission Data)
• 256 Kbps inbound (receptor control)
• NSF allocated bandwidth
• 20 Mbps inbound/10Mbps outbound

12
Site Plans for McMurdo Receptor
To Australia Off-Continent SatCom Hop And End
Users
BANDWITH
NPOESS Spacecraft
OPTUS D-1 Spacecraft
MicroWave Radio
Black Island Satellite Comm Solution
MicroWave Radio
NPOESS Receptors (Ka-band)
McMurdo Station Operations
11-meter antenna
7-meter antenna
13
Black Island Antennas NSF 11-meter and NSF 7.2
meter
11-meter comm antenna
7.2-meter comm antenna
14
OPTUS D-1 Launch
The Optus D1 satellite   Launched from French
Guiana on Ariane 5 rocket on October 13, 2006  
Positioned in orbit at 160 degrees east
longitude  gt15 year life span
15
OPTUS D1 McMurdo Sound Beam EIRP G/T
McMurdo Sound
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High Level Schedule
05 06 07 08 09 10 11 12

• Receptors Site Implementation
• Site Surveys
• Roads Infrastructure (NSF)
• Pads Utilities (NSF)
• Pack Ship Receptors
• Receptors Installation
• Integration Test

1
2
3
Oct 09

• Shared SATCOM Solution
• Space Segment Reserved
• Black Island Antenna Upgrades
• SATCOM Service

Nov 05
Shared IPO/NSF Service
NSF Service
10/10 Mbps
60/20 Mbps
NPOESS C1 Launch (TBR)
17
Summary

• NPOESS Architecture
• System-Level
• Command, Communications and Control Segment
• SafetyNet
• McMurdo
• Overview of NPOESS IPO-National Science
  Foundation Agreement
• Receptor Details
• Satellite Communications Upgrade Plans
• Initial (low rate) service
• Final (high rate) service
• OPTUS D1 Satellite
• Coverage
• Schedule