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Chapter 5 Timing and 1 PPS Analysis Results
Satellite Results
T-BERD/MTS 5800 Timing Expansion Module User Manual
July 2017 22112315, Rev. 004 Page 53
Sky Plot
The Sky Plot (shown in Figure 9 ) illustrates the satellites that were identified using the
GNSS receiver attached to the TEM Module. The ID is provided for each satellite, and
colors are used to indicate the satellite’s status (No Signal, Signal, Ready, or Used).
Table 8 describes each color used to communicate the satellite status.
Figure 9 Sample Sky Plot, GPS Constellation
Table 8 Satellite Status
Color Status Indicates
Red No Signal A signal from the satellite is not available, but the sat-
ellite’s presence is known based on information pro-
vided in the Almanac (and broadcast by other
satellites within the constellation).
Dark Blue Signal The signal from the satellite has been acquired and
the GNSS receiver is receiving data.
Light Blue Ready The GNSS receiver is receiving position information
from the satellite, but the information is unusable
because the satellite is:
– below the Elevation Limit (specified as a GNSS
configuration setting), or
– less than the Minimum C/No (specified as a
GNSS configuration setting), or
– offline.