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APPENDIX F TO CIVIL POSITIONING, VELOCITY, AND TIMING REQUIREMENTS

(U) APPENDIX F

Civil Positioning, Velocity, and Timing Requirements (U)

(U) The civil requirements shown in this appendix were collected during the Position, Velocity, and Time (PVT) Determination Capstone Requirements Document (CRD) and Global Positioning System (GPS) Operational Requirements Document (ORD) development effort. The CRD requirements were developed for a PNT systems approach.  These requirements were not identified to be satisfied by any particular system such as the Global Positioning System (GPS), Wide Area Augmentation Systems (WAAS), Local AAS (LAAS), National Differential GPS (NDGPS), Joint Precision Approach and Landing System (JPALS), etc.) The requirements listed in this appendix were validated by the IGEB on 13 January 1998. Reference numbers in this appendix match the references listed in Appendix B.

UNCLASSIFIED

POSITION ACCURACY - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

IA  LAND

IA1  SURFACE

HORIZONTAL

VERTICAL

HORIZONTAL

VERTICAL

IA1a HIGHWAYS

IA1a(1) NAV & ROUTE GUIDE

20 m

5 m

FRP

        (2) VEHICLE MONITORING

30 m

FRP

         (3) VEHICLE ID

30 m

FRP

         (4) PUBLIC SAFETY

10 m[IH1] 

FRP

         (5) RESOURCE  MGT

5[IH2]  m

REF 44

         (6) COLLISION AVOIDANCE

1 m

FRP

         (7) GEOPHYSICAL SURVEY

1 m[IH3] 

REF 44

         (8) GEODETIC CONTROL

< 1m

FRP

         (9)  INTELLIGENT VEHICLE INITIATIVE

0.1m

FHWA

IA1b RAIL

IA1b(1) POSITION LOCATION

30 m

10 m

FRP

          (2) TRAIN CONTROL

1 m

FRP

IA1c TRANSIT

IA1c(1) VEHICLE  C&C

50 m

30 m

FRP

         (2) BUS STOP AUTO VOICE

5 m

FRP

         (3) EMERGENCY RESP

100 m

75m

FRP

         (4) DATA COLLECTION

5 m

FRP

         (5) FLEET MONITORING

35 m

25 m

OSTP/P-7

IA1d SURVEYING

IA1d(1) Geodetic Survey

0.01 m

0.01 m

NGS/GIAC

         (2) Cadastral Survey

0.15 m

N/A

NGS/GIAC

         (3) Crustal Motion

0.001 m

0.001 m

0.001 m

NGS/GIAC

         (4) Deformation Monitoring

0.001 m

0.001 m

NGS/GIAC

         (5)  GIS (Facilities Management)

0.1 - 1.0 m

0.1 - 1.0 m

NGS/GIAC

         (6)  GIS (Natural Resource Management, Endangered Species Studies, etc.)

1.0 - 5.0 m

1.0 - 5.0 m

NGS/GIAC

         (7)  Real-time GIS Land Navigation

0.1 - 1.0 m

0.1 - 1.0 m

NGS/GIAC

         (8)  Airport Survey - Runway

Horizontal:  31 cm

Orthometric:  26 cm

Ellipsoidal: 16 cm

Horizontal:  31 cm

Orthometric:  26 cm

Ellipsoidal:  16 cm

Dept Of Commerce

IA1e PEDESTRIAN - AID TO BLIND

< 5 m

Individual

IA2 SUBTERRANEAN

IA2a TRAFFIC TUNNELS

1 m

USSS

IA3  ENVIRONMENTAL

[IH4] 

IA3a  SITES

30 m

25 m

EPA

IA3b  Stationary Sampling Pt

5 m

3 m

EPA

IA3c  Variable Sampling Pt

5 m

0.2 m - 0.5 m

EPA

IA3d  Water Level

1 m

5 mm

1 m

5 mm

EPA

IA3e  NAVIGATION

1 m

0.1 m

0.1 m

1 cm

EPA

IA3f  Sediment Survey (including Subsurface (water))

0.1 m

0.1 m

0.1 m

1 cm

EPA

IA4  HEALTH CARE

5 m[IH5] 

Individual

IA5  LAW ENFORCEMENT

1 m[IH6] 

USSS

IA6  RECREATION/SPORTS

2 m[IH7] 

2 m

1 m

1 m

Individual

IA7  FARMING

0.01 m[IH8] 

[IH9]  0.04 m

NASA/JPL

IA8  EARTHQUAKE RESEARCH

0.015 m (post process)

NASA/JPL

IA9  Disaster Management

4 m

0.5 m

USGS

IA10  METEOROLOGY/WEATHER

IA10a  GROUND-BASED SOUNDING OF TROPOSPHERE

< 20cm

USNO/U. of Hawaii

IA10b  Water Vapor Determination

0.2 m

FSL

IA10c  Met Balloons/Dropsondes

10 m

10 m

1 m

1 m

WHOI

IA10d  At-sea Wind Sensor

10 m

1 m

WHOI

IA11  OCEAN SCIENCE

IA11a  Acoustic Doppler Current Profiler

10 m

1 m

WHOI

IA11b  Drifters/Profilers

10 m

1 m

WHOI

IA11b  Autonomous Vehicles

10 m

1 m

WHOI

IB MARINE

All accuracies 2drms

IB1  Ocean

IB1a  Safety of Navigation

7.4 km

1.8 Km

FRP

IB1b  Large ships - efficiency

460 m

185 m

FRP

IB1c  Resource exploration

100 m

10 m

FRP

IB1d  Search Operations

460 m

185 m

FRP

IB2  Coastal

FRP

IB2a  Safety of Navigation

460 m

FRP

IB2b  Safety (Recreation/Small Vessels)

3.7 km

460 m

FRP

IB2c Fishing

460 m

FRP

IB2d  Resource Exploration

100 m

1.0 m

USCG

Ref 95

IB2e  Search Operations / Law Enforcement

460 m

FRP

IB3  Harbor Entrance/Approach

FRP

IB3a  Safety of Navigation

20 m

8 m

FRP

IB3b  Resource Exploration

5 m

1 m

USCG

Ref 95

IB3c  Engineering & Construction Vessels

5 m

5 m

0.1 m

0.1 m

USCG

Ref 95

IB3d  Recreational/Fishing

20 m

8 m

FRP

IB4  Inland Waterway

FRP

IB4a  Safety of Navigation

IB4a(1)  Ships & Tows

5 m

2 m

FRP

IB4a(2)  Recreation/Small Vessels

10 m

5 m [IH10] 

USCG

Ref 95

IB4b  Engineering & Construction Vessels

5 m

5 m

0.1 m

0.1 m

USCG

Ref 95

IB5  Precision Navigation

0.1m

0.1m[IH11] 

NGS/GIAC

IB6  Dredging

2 m

5 cm[IH12] 

NGS/GIAC

IB7  Marine LIFE Science

5 m[IH13] 

NGS/GIAC

IC AIR

95% NSE Horizontal

95% NSE Vertical

95% NSE Horizontal

95% NSE Vertical

IC1 Enroute through Nonprecision Approach

100 m

N/A

100 m

N/A

FAA

IC2 Category I (CAT I) Precision Approach

18.2 m

7.6 m

18.2 m

7.6 m

FAA

IC3  CATEGORY II (CAT II) PRECISION APPROACH

6.5 m

1.7 m

6.5 m

1.7 m

FAA

IC4  CATEGORY III (CAT III) PRECISION APPROACH

3.9 m

0.8 m

3.9 m

0.8 m

FAA

IC5  Airborne Research

TBS

USGS

II  SPACE

3D Position

Attitude

3D Position

Attitude

IIA  UP TO GEOSYNCH

IIA1  GLOBAL TOPOGRAPHIC SURVEY 

2 m (post processed)

NASA/JPL

IIA2  INTERFEROMETRIC SYNTHETIC APERTURE RADAR

0.2 m (post processed)

NASA/JPL

IIA3 GRAVITY FIELD RECOVERY FROM LEO

0.0001m (post processed)

NASA/JPL

IIA4 TOPEX ALTIMETRY MISSION

0.02 m (vertical)

NASA/JPL

IIA5  SATELLITE OPERATIONS (Near Real-time)

6 m

0.1 deg

20 cm

0.01 deg

SATOPS ADT

IIA6  SATELLITE OPERATIONS (Post-processed)

0.01 m (w/in 72 hrs)

0.001 deg (w/in 72 hrs)

0.01 m (w/in 1 hr)

0.001 deg (w/in 1 hr)

SATOPS ADT

IIA7  NPOESS Occultation

0.003m (post-process)

0.0003m (post-process)

NPOESS IORD

IIB  GEO AND BEYOND (Earth Orbiting)

IIB1  SATELLITE OPERATIONS (Near real-time)

25 m

0.1 deg

10 m

0.01 deg

SATOPS ADT

IIB2  SATELLITE OPERATIONS (Post-processed)

TBD

TBD

TBD

TBD

SATOPS ADT

UNCLASSIFIED

UNCLASSIFIED

VELOCITY ACCURACY - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

IA LAND

SPEED

DIRECTION

SPEED

DIRECTION

IA1 SURFACE

0.4 m/sec (real-time)

REF 44

IB MARINE

IB1a  Marine Life Sciences

0.05 m/sec

NGS/GIAC

IC AIR

2 m/s

2 m/s

FAA

II SPACE

IIA UP TO GEOSYNCH

IIA1 GPS/MET:UPPER ATMOSPHERE TEMPERATURE PROFILE RECIVERY

.001 m / sec (post-Processed)

NASA/JPL

IIA2  BISTATIC RADAR

0.0001 m / sec (real time)

NASA/JPL

IIA3  SATELLITE OPERATIONS

0.001 m/sec

< 0.0001 m/sec

SATOPS ADT

IIB GEO AND BEYOND (Earth Orbiting)

IiB1  SATELLITE OPERATIONS

0.001 m/sec

< 0.0001 m/sec

SATOPS ADT

UNCLASSIFIED

UNCLASSIFIED

INTEGRITY - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

IA LAND

IA1 SURFACE

10 sec to alarm

5 sec to alarm[IH14] 

Individual

IA1a(6)  Collision Avoidance

2 sec to alarm

Daimler-Benz

IB MARINE

10 sec to alarm

5 sec to alarm

USCG

IC AIR

IC1 Enroute through non-precision approach

1-10-5/hour

1-10-5/hour

FAA

IC1a TIME TO ALERT

10 seconds

10 seconds

FAA

IC2  CATEGORY I PRECISION APPROACH

1-3.5 x 10-7  per approach

1-3.5 x 10-7 per approach

FAA

IC2a  TIME TO ALERT  I

6 seconds

6 seconds

FAA

IC3  CATEGORY II PRECISION APPROACH

1 - 2.5 X 10-9 per approach

1 - 2.5 X 10-9 per approach

FAA

IC3a  TIME TO ALERT

1 second

1 second

FAA

IC4  CATEGORY III PRECISION APPROACH

1 - 2 X 10-9 per approach

1 - 2 X 10-9 per approach

FAA

IC4a  TIME TO ALERT

1 second

1 second

FAA

II SPACE

Monitor 24 hr/day up to geosynchronous altitude, 100% monitoring below 10,000 km altitude

Time to alarm 6 sec

Monitor 24 hr/day up to geosynchronous altitude

Time to alarm 3 sec

SATOPS ADT

IIA UP TO GEOSYNCH

IIB GEO AND BEYOND (Earth Orbiting)

UNCLASSIFIED

UNCLASSIFIED

AVAILABILITY - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

A LAND

IA1 SURFACE

100% over 24 hours[IH15] 

WAPA/BPA

IA2 SUBTERRANEAN

IB MARINE

99.9%[IH16] 

IB1 Ocean

IB1a  All Craft

99% fix at least every 12 hours

FRP

IB1b Large Ships

99%

FRP

IB1c Resource Exploration

99%

FRP

IB1d  Search Operations

99%

FRP

IB2 Coastal

IB2a All Ships

99.7%

FRP

IB2b Recreation Boats/Small Vessels

99%

FRP

IB2c Commercial Fishing

99%

FRP

IB2d Resource Exploration

99%

FRP

IB2e Search Operations, Law Enforcement

99.7%

FRP

IB2f Recreational Sports Fishing

99%

FRP

IB3 Harbor Entrance/ Approach

IB3a Large Ships and Tows

99.7%

FRP

IB3b Smaller Ships

99.9%

FRP

IB3c Resource Exploration

99%

FRP

IB3d Engineering & Construction Vessels

99%

FRP

IB3e Fishing, Recreation, Other Small Vessels

99.7%

FRP

IB4 Inland Waterway

IB4a All Ships and Tows

99.9%

FRP

IB4b Recreation Boats/Smaller Vessels

99%

FRP

IC AIR

IC1 ENROUTE THROUGH NON-PRECISION APPROACH

99.999% (3-dimensional), Mask angle 5 degrees above horizon

99.999% (3-dimensional), Mask angle 5 degrees above horizon

FAA

IC2 CATEGORY I PRECISION APPROACH

99.9% (3-dimensional), Mask angle 5 degrees above horizon

99.9% (3-dimensional), Mask angle 5 degrees above horizon

FAA

IC3  CATEGORY II PRECISION APPROACH

99.9% (3-dimensional), Mask angle 5 degrees above horizon

99.9% (3-dimensional), Mask angle 5 degrees above horizon

FAA

IC4  CATEGORY III PRECISION APPROACH

99.9% (3-dimensional), Mask angle 5 degrees above horizon

99.9% (3-dimensional), Mask angle 5 degrees above horizon

FAA

II  SPACE

100% over 24 hrs

100% over 24 hrs

SATOPS ADT

IIA UP TO GEOSYNCH

IIA1  NPOESS Occultation

98%

99.9%

NPOESS IORD

IIB GEO AND BEYOND (Earth Orbiting)

III PVT SYSTEM

IIIA SERVICE AVAILABILITY

98 %

99.999 %

Ref 12

IIIB SERVICE RELIABILITY

98 %

99.97 %

Ref 12

UNCLASSIFIED

UNCLASSIFIED

TIMING ACCURACY - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

IA LAND

IA1 SURFACE

10 ns

1 nsec[IH17] 

Ref 44

IA1a  POWER GRIDS

1 microsecond

WAPA/BPA

IA1b  Standards Maintenance

1 nsec

1 psec

NIST

IA1c  Communications

1 nsec

NIST/BIPM

IA1b  UTC TO USNO TIME DIFFERENTIAL

10 nsec

REF 44

IA1c ADVANCED SIGNAL PROCESSING

IA1c SEISMIC (OIL EXPLORATION)

IB MARINE

IC AIR

IC1  ADS * COMMUNICATIONS USING TDMA

5 msec

5 msec

FAA

II  SPACE

IIA SPS Time Transfer from UTC

340 nsec (95%)

340 nsec (95%)

Ref 12

IIB HYDROGEN MASER IN SPACE

1 nsec

NASA/JPL

IIC  MEASURE MASER STABILITY

0.2 nsec

NASA/JPL

IID  Satellite Operations

25 nsec

0.01 nsec (post-processed)

SATOPS ADT

IIE  NPOESS Occultation

1 microsecond

0.1 microsecond

NPOESS IORD

UNCLASSIFIED


UNCLASSIFIED

COVERAGE - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

I. EARTH AND ATMOSPHERE

THRESHOLD

OBJECTIVE

IA LAND

IA1 SURFACE

Worldwide through all operating environments[IH18] 

NGS/GIAC

IA2 SUBTERRANEAN

IB MARINE

Worldwide through all operating environments

USCG

IC AIR

Global (per availability and continuity of service requirements) [IH19] 

Global (per availability and continuity of service requirements)

FAA

II  SPACE

Worldwide to geostationary altitude

Worldwide to twice geostationary altitude (supporting highly elliptical orbit satellites)

SATOPS ADT

IIA UP TO GEOSYNCH

IIB GEO AND BEYOND (Earth Orbiting)

UNCLASSIFIED

  UNCLASSIFIED

CONTINUITY OF SERVICE - CIVIL

OPERATIONAL ENVIRONMENT/ MISSION

REQUIREMENTS

SOURCE

THRESHOLD

OBJECTIVE

I. EARTH AND ATMOSPHERE

IA LAND

IA1 SURFACE

IA2 SUBTERRANEAN

IB MARINE

IC AIR

IC1 ENROUTE THRU NON PRECISION APPROACH

1 - 10-4  per hour

1 - 10-4 per hour

FAA

IC2 CAT I PRECISION APPROACH

1 - 10-5 (in any 15 second time period)

1 - 10-5 (in any 15 second time period)

FAA

IC3 CAT II PRECISION APPROACH

1 - 8 x 10-6 (in any 15 second time period)

1 - 8 x 10-6 (in any 15 second time period)

FAA

IC4 CAT III PRECISION APPROACH

1 - 6 x 10-6 (in any 30 second time period)

1 - 6 x 10-6 (in any 30 second time period)

FAA

II  SPACE

IIA UP TO GEOSYNCH

IIB GEO AND BEYOND (Earth Orbiting)

UNCLASSIFIED


Page: 2
 [IH1]  Requirement #64 stipulates 10 m accuracy for all users without differential

Page: 2
 [IH2]  From Requirement #3

Page: 2
 [IH3]  Requirement #127

Page: 3
 [IH4]  Requirement #3 (100 m CEP).  #134  Within 5 minutes.  Superseded by #175.  Readings need to be made within 5 minutes.

Page: 3
 [IH5] Requirement #5

Page: 3
 [IH6]  Requirement #68, #69, #70

Page: 3
 [IH7]  Requirement #84, #97

Page: 3
 [IH8]  Requirement #176

Page: 3
 [IH9]  Requirement #125, #211

Page: 4
 [IH10]  Requirement #54, #60

Page: 4
 [IH11]  Requirement #174

Page: 4
 [IH12]  Requirement #174

Page: 4
 [IH13]  Requirement #25

Page: 7
 [IH14]  From EPA

Page: 8
 [IH15]  Requirement #114 addresses guaranteed access to all users (including international)  (Same requirements as military are probably reasonable for most categories.

Page: 8
 [IH16]  FRP

Page: 10
 [IH17]  Requirement #112.  Requirement is specified as 1 ns, but referenced clock capable of 1 picosecond.

Page: 11
 [IH18]  Several requirements identify coverage to overcome satellite masking.

Page: 11
 [IH19]  Requirement #13