Satellites

The Satellites page details the data received from the different constellations. The information provided is split into six tabs: Status, GPS, GLONASS, GALILEO, SBAS, QZSS and Polar View.

Status:

Parameter

Designation

$PASHQ

GPS

Indicates whether the receiver has the GPS reception capability (On) or not (Off).

GPS

GLONASS

Indicates whether the receiver has the GLO­NASS reception capability (On) or not (Off).

GLO

GALILEO

Indicates whether the receiver has the GALIL­EO reception capability (On) or not (Off).

GAL

SBAS

Indicates whether the receiver has the SBAS re­ception capability (On) or not (Off).

SBA

QZSS

Indicates whether the receiver has the QZSS re­ception capability (On) or not (Off)

QZS

Recording and Out­put Elevation Mask

Gives the current value of elevation angle used in the data recording and output process.

ELM

Position Elevation Mask

Gives the current value of elevation angle used in the position computation process.

PEM

 

For each visible satellite of each constellation received (GPS, GLONASS, GALILEO, SBAS and QZSS):

Parameter

Designation

$PASHQ

ID

Satellite ID number.

SAT

Status

Gives status information for each satellite:

   Used: Satellite received and used. You may read “Used - SBAScorr”, “Used - DGPScorr”, “Used - L1RTKcorr” or “Used - L1L2RTKcorr” depending on which type of corrections are available for the satellite.

   Tracked: Satellite received but not used.

   Blank: Satellite in view.

   No ephemeris: Satellite does not provide ephemeris data.

   Unhealthy: Satellite declared unhealthy.

   Bad URA: Bad user range accuracy.

SAT

Azimuth

Azimuth angle, in degrees, of the satellite.

SAT

Elevation

Elevation angle, in degrees, of the satellite.

SAT

SNR (dB.Hz)

Signal-noise ratios, in dB.Hz:

- For L1C, L1P(Y), L2CS, LP2(Y) and L5 sig­nals (GPS)

- For L1C and L2C signals (GLONASS)

- For E1 and E5a signals (GALILEO)

- For L1C signal (SBAS)

- For L1C, L2CS and L5 (QZSS)

SAT

Smooth Count (s)

Smooth counts, in seconds:

- For L1C, L1P(Y), L2CS, LP2(Y) and L5 sig­nals (GPS)

- For L1C and L2C signals (GLONASS)

- For E1 and E5a signals (GALILEO)

- For L1C signal (SBAS).

- For L1C, L2CS and L5 (QZSS)

Smooth count refers to that period of time during which the signal phase is tracked smoothly without disruption (no cycle slip).

 

 

The Polar View shows the location in the sky of each of the visible satellites from the four different constellations. Different colors are used to display the numbers of the visible satellites:

     Green: GPS (dark green; satellite used; pale green: satellite not used)

     Red: GLONASS (dark red: satellite used; pale red: satellite not used)

     Orange: GALILEO (dark orange: satellite used; pale orange: satellite not used)

     Blue: SBAS (dark blue: satellite used; purple: satellite not used)

     Dark blue: QZSS (ink blue: satellite used; pale blue: satellite not used)

     For all constellations, the numbers of the satellites that are visible but not tracked are framed in dotted line.