J Listing Of Table s
MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1 259Table E-3 RT-2 Performance: Static ModeTable E-4 RT-2 Performance: Kinematic ModeTable E-5 RT-2 Degradation With Respect To Data Delay
1
Table E-6 RT-20 Performance
Baseline
length
Time since L2 lock-on
with at least 6 satellites
above mask angle
Horizontal accuracy at
the stated time
Runs meeting the stat-
ed accuracy at the
stated time
< 10 km 70 seconds + 1.5 sec/km 2 cm + 0.5 ppm 75.0%
< 10 km 5 minutes 1 cm + 1 ppm 75.0%
< 15 km 4 minutes 5 cm 66.7%
< 25 km 7 minutes 7 cm 66.7%
< 35 km 10 minutes 35 cm 66.7%
< 35 km 30 minutes 25 cm 66.7%
Baseline
length
Time since L2 lock-on
with at least 6 satellites
above mask angle
Horizontal accuracy at
the stated time
Runs meeting the
stated accuracy at
the stated time
< 10 km 120 seconds + 1.5 sec/km 2 cm + 0.5 ppm 75.0%
< 15 km 8 minutes 8 cm 66.7%
< 25 km 14 minutes 10 cm 66.7%
< 35 km 20 minutes 40 cm 66.7%
< 35 km 60 minutes 25 cm 66.7%
Data Delay (sec) Distance (km) Accuracy (CEP)
0 - 2 1+1 cm/sec
2 - 7 1+2 cm/sec
7 - 30 1+5 cm/sec
> 30 1 pseudorange or single point 3
Tracking Time (sec) Mode 1Data Delay (sec) Distance (km) Accuracy (CEP)
1 - 180 Static 0 1 100 to 25 cm
180 - 3000 Static 0 1 25 to 5 cm
> 3000 Static 0 1 5 cm or less 2
1 - 600 Kinem atic 0 1 100 to 25 cm
600 - 3000 Kinematic 0 1 25 to 5 cm
> 3000 Kinematic 0 1 5 cm or less 2
Either 0 - 2 1+1 cm/sec
Either 2 - 7 1+2 cm/sec
Either 7 - 30 1+5 cm/sec
Either > 30 1pseudorange or single point 3
1 Mode = Static or Kinematic
2 The accuracy specifications refer to the PRTKA/B logs which include about 3 cm extrapolation error. RTKA/B logs are more accurate
but have increased latency associated with them.
3After 30 seconds reverts to pseudorange positioning (single point or differential depending on messages previously
received from the base station).