Time-To-First-Fix (Measured Per Ion-Std 101); Signal Reacquisition; Measurement Performance; Table 21: Time-To-First-Fix - Oceaneering C-NavX1 User Manual

11.1.6 Time-To-First-Fix (measured per ION-STD 101)

Table 21: Time-To-First-Fix

Cold Start:
Warm Start:
Hot Start:

11.1.7 Signal Reacquisition

Table 22: Signal Reacquisition

< 30 second loss:

11.1.8 Measurement Performance

Table 23: Measurement Performance

C-Nav LEO (multi-constellation)
Position(H):
Position(V):
Enhanced SBAS (WAAS/EGNOS/MSAS/GAGAN) Position Accuracy
Position(H):
Position(V):
Velocity (f or all DGPS described above)
Velocity:
*
Please note:
•
The specif ications herein are based on the f ollowing: PDOP < 4, 2-sigma (95%; unless
otherwise noted), 24-hour averaged set of data. Further, perf ormance is dependent
upon, but not limited to, location, satellite geometry, atmospheric conditions (i.e., so lar
storm activity), local interf erence, DoD signal degradation (i.e., Selective Availability or
similar techniques), satellite messaging or timing errors, and augmentation correction
messages.
CNAV-MAN-061
Revision B
C-NavX1 GNSS Receiver User Manual
Old ephemeris >2hrs old, time error>10mS or position
< 65 seconds
unknown.
Position <60Km f rom last known position, time error
< 55 seconds
<0.5mS and current ephemeris
< 20 seconds Valid Ephemeris available (less than 4 hours old)
< 2 seconds
+ 10cm, 2σ; + 5cm, 1σ GNSS.
+ 15cm, 2σ, + 10cm, 1σ GNSS
+150cm,2σ;
+ 300cm, 2σ;
0.1 m/s*
DOC-TEM-28-NUM Rev A Uncontrolled copy when printed
C-Nav
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