Leica SpiderQC v4.4 Quality Report


Program Run: 2017/12/13 00:05:20.18

File Details:


Observation File: agui3460.17o
GPS Navigation File: agui3460.17n
GLONASS Navigation File: agui3460.17g
Quality Testing:  Pass 

Station Details:


Marker Name/Number:  AGUI  31322M001   
Observer/Agency:       
Receiver #/Type/Vers:  495473  LEICA GRX1200+GNSS  9.20/6.405 
Antenna #/Type:  09260119  LEIAX1203+GNSS NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5437265.719  -1502353.293  2967249.534 
Approx Position (plh):  27° 54' 13.95044" N  15° 26' 45.00924" W  329.038m 
Diff. Est-Header:  0.9 m dX  -6.5 m dY  2.7 m dZ 
Diff. Est-Header:  7.1 m (2880 estimates) 

Session Summary:


Time of first obs:  2017/12/12 00:00:00.00 GPS 
Time of last obs:  2017/12/12 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1979, day 2 
Observation interval:  30.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  55 
Num SVs with nav:  55 
Total GPS orbits:  187 
Total GLONASS orbits:  383 
Total Galileo orbits: 
SVs with obs:  G1 G2 G3 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without obs:  G4 E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26 E27 E28 E29 E30 E31 E32 E33 E34 E35 E36 E37 E38 E39 E40 E41 E42 E43 E44 E45 E46 E47 E48 E49 E50 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20  
SVs with nav:  G1 G2 G3 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without nav:  G4  
User Disabled SVs:  None 
Meteo epochs: 
Auxiliary epochs: 

Quality Testing:


  Pass/Fail   Details 
General Tests 
Epochs With Data:  Pass  Value 100.0 %, Threshold 99.0 % 
File Format:  Pass   
RX Clock:  Pass   
Other:  Pass   
     
GPS Specific Tests 
Cycle Slips:  Pass  Value 12 slips, Threshold 45 slips 
Multipath:  Pass  Value 0.30m MP1 / 0.30m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 45 slips, Threshold 103 slips 
Multipath:  Pass  Value 0.29m MP1 / 0.32m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 96.1 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  44666 
Num possible obs > 0°:  53041 
Num obs with invalid nav: 
Num obs without nav: 
Num obs to unhealthy SV: 
Num obs with WLF change: 
Num complete loss of lock: 

Num obs GPS > 0°:  25214 
Num obs GLONASS > 0°:  19452 
Num obs Galileo > 0°: 
Num obs All > 0°:  44666 

Epochs with < 5 SV > 15°:  (0.0 %) 
Epochs with all SV > 15°:  2865  (99.5 %) 
Epochs with full data > 15°:  2227  (77.3 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  5.2  3.4 
GDOP  3.2  6.2  4.1 

Data Gaps 
Num epochs with data:  2880 
Num epochs without data: 
Data Gaps:  0.00 seconds 

List of Data Gaps (-) 
Duration  Start Time  End Time 
None     

Non-tracked satellites > 15° (^): 
SV  Time (minutes)  Epoch Range  Elevation Range  Azimuth Range 
R8  2.500  1118 / 1123  15.79° / 16.81°  220.94° / 221.77° 
Total:  2.500 (4 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000042 ms (at 2017/12/12 16:29:30.00) 
Num of RX clock resets: 
Total clock drift:  +0.000000 ms 
Rate of clock drift:  +0.000 ms/hr 
Av time between resets:  0.000 minute(s) 

Quality Indicators by Satellite System:


  Total  GPS  GLONASS  Galileo 
Tracking 
Num obs > 15°:  39460  22302  17158 
% obs > 15°:   99.9 %  100.0 %  99.9 % 
Num possible obs > 15°:  39487  22311  17176 
Num complete obs > 15°:  38812  22301  16511 
% complete obs > 15°:   98.3 %  100.0 %  96.1 % 
Average # SV per Epoch:  13.7   7.7   6.0  
         
Obs L2 : Obs L1:  0.984   1.000   0.962  
Obs L5 : Obs L1: 

Cycle Slips         
Num cycle slips > 15°:  57  12  45 
% slips per complete obs:  0.147 %  0.054 %  0.273 % 
Num complete obs per slip:  68091   185842   36691  
IOD Slips > 15°:  653  653 
Outliers > 15°: 
LLI L1 : Obs L1: 
LLI L2 : Obs L2:  0.0002   0.0004  
LLI L5 : Obs L5: 

Multipath         
MP1 RMS:  0.294 m  0.300 m  0.287 m 
MP2 RMS:  0.308 m  0.298 m  0.321 m 
MP5 RMS: 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1 100.0 %
100.0 %
N/A N/A
L2 N/A 98.4 %
N/A N/A
L2P 98.4 %
N/A N/A N/A

Tracking by satellite > 15°: 
SV Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
G1 15.04° 54.46° 851 851 (100.0 %)
0 (0.0 %) 0
G2 15.01° 63.54° 583 583 (100.0 %)
0 (0.0 %) 0
G3 15.01° 78.50° 731 731 (100.0 %)
0 (0.0 %) 1
G5 15.04° 83.93° 708 708 (100.0 %)
0 (0.0 %) 0
G6 15.05° 84.59° 649 649 (100.0 %)
0 (0.0 %) 0
G7 15.00° 53.87° 711 711 (100.0 %)
0 (0.0 %) 0
G8 15.07° 65.63° 810 810 (100.0 %)
0 (0.0 %) 1
G9 15.08° 87.30° 665 662 (99.5 %)
0 (0.0 %) 1
G10 15.04° 41.86° 808 808 (100.0 %)
0 (0.0 %) 0
G11 15.06° 62.13° 819 819 (100.0 %)
0 (0.0 %) 2
G12 15.00° 85.00° 676 676 (100.0 %)
0 (0.0 %) 0
G13 15.08° 54.56° 851 851 (100.0 %)
0 (0.0 %) 0
G14 15.03° 51.53° 745 745 (100.0 %)
0 (0.0 %) 2
G15 15.04° 72.74° 774 774 (100.0 %)
0 (0.0 %) 0
G16 15.05° 77.23° 725 725 (100.0 %)
0 (0.0 %) 0
G17 15.05° 63.53° 570 568 (99.6 %)
0 (0.0 %) 2
G18 15.03° 39.49° 812 812 (100.0 %)
0 (0.0 %) 0
G19 15.06° 56.01° 707 707 (100.0 %)
0 (0.0 %) 0
G20 15.00° 66.35° 593 593 (100.0 %)
0 (0.0 %) 0
G21 15.05° 58.34° 582 582 (100.0 %)
0 (0.0 %) 0
G22 15.07° 88.05° 708 708 (100.0 %)
0 (0.0 %) 0
G23 15.13° 70.21° 617 617 (100.0 %)
0 (0.0 %) 1
G24 15.05° 56.82° 850 850 (100.0 %)
0 (0.0 %) 0
G25 15.07° 65.83° 802 802 (100.0 %)
0 (0.0 %) 0
G26 15.03° 69.31° 799 799 (100.0 %)
0 (0.0 %) 0
G27 15.09° 53.90° 854 854 (100.0 %)
0 (0.0 %) 0
G28 15.01° 38.34° 820 816 (99.5 %)
0 (0.0 %) 2
G29 15.06° 77.28° 623 623 (100.0 %)
0 (0.0 %) 0
G30 15.15° 65.73° 588 588 (100.0 %)
0 (0.0 %) 0
G31 15.01° 85.05° 669 669 (100.0 %)
0 (0.0 %) 0
G32 15.01° 57.90° 611 611 (100.0 %)
0 (0.0 %) 0
R1 15.09° 49.46° 758 757 (99.9 %)
0 (0.0 %) 1
R2 15.06° 72.81° 611 611 (100.0 %)
0 (0.0 %) 0
R3 15.02° 82.37° 686 686 (100.0 %)
0 (0.0 %) 0
R4 15.03° 57.48° 826 826 (100.0 %)
0 (0.0 %) 0
R5 15.02° 60.91° 817 816 (99.9 %)
0 (0.0 %) 10
R6 15.16° 87.21° 549 549 (100.0 %)
0 (0.0 %) 0
R7 15.08° 69.83° 627 627 (100.0 %)
0 (0.0 %) 0
R8 15.04° 48.95° 762 755 (99.1 %)
0 (0.0 %) 1
R9 15.02° 59.42° 591 591 (100.0 %)
0 (0.0 %) 0
R10 15.02° 38.12° 711 711 (100.0 %)
0 (0.0 %) 0
R11 15.01° 60.30° 583 583 (100.0 %)
0 (0.0 %) 1
R12 15.06° 84.16° 536 536 (100.0 %)
0 (0.0 %) 0
R13 15.05° 68.69° 626 626 (100.0 %)
0 (0.0 %) 0
R14 15.09° 49.21° 983 983 (100.0 %)
0 (0.0 %) 1
R15 15.00° 67.41° 993 993 (100.0 %)
0 (0.0 %) 0
R16 15.01° 82.80° 725 725 (100.0 %)
0 (0.0 %) 0
R17 15.02° 83.65° 835 835 (100.0 %)
0 (0.0 %) 0
R18 15.01° 82.78° 788 788 (100.0 %)
0 (0.0 %) 0
R19 15.04° 50.95° 822 822 (100.0 %)
0 (0.0 %) 0
R20 15.07° 47.48° 763 754 (98.8 %)
0 (0.0 %) 2
R21 15.05° 70.78° 613 613 (100.0 %)
0 (0.0 %) 0
R22 15.06° 83.89° 536 536 (100.0 %)
0 (0.0 %) 0
R23 15.00° 57.54° 634 634 (100.0 %)
0 (0.0 %) 0
R24 15.01° 37.95° 801 801 (100.0 %)
0 (0.0 %) 29

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 2.2 %
0.0 %
0.0 %
G2 1.5 %
0.0 %
0.0 %
G3 1.9 %
0.0 %
0.0 %
G5 1.8 %
0.0 %
0.0 %
G6 1.6 %
0.0 %
0.0 %
G7 1.8 %
0.0 %
0.0 %
G8 2.1 %
0.0 %
0.0 %
G9 1.7 %
0.2 %
0.2 %
G10 2.0 %
0.0 %
0.0 %
G11 2.1 %
0.0 %
0.0 %
G12 1.7 %
0.0 %
0.0 %
G13 2.2 %
0.0 %
0.0 %
G14 1.9 %
0.0 %
0.0 %
G15 2.0 %
0.0 %
0.0 %
G16 1.8 %
0.0 %
0.0 %
G17 1.4 %
0.0 %
0.0 %
G18 2.1 %
0.0 %
0.0 %
G19 1.8 %
0.0 %
0.0 %
G20 1.5 %
0.0 %
0.0 %
G21 1.5 %
0.0 %
0.0 %
G22 1.8 %
0.0 %
0.0 %
G23 1.6 %
0.0 %
0.0 %
G24 2.2 %
0.0 %
0.0 %
G25 2.0 %
0.0 %
0.0 %
G26 2.0 %
0.0 %
0.0 %
G27 2.2 %
0.0 %
0.0 %
G28 2.1 %
0.0 %
0.0 %
G29 1.6 %
0.0 %
0.0 %
G30 1.5 %
0.0 %
0.0 %
G31 1.7 %
0.0 %
0.0 %
G32 1.5 %
0.0 %
0.0 %
R1 1.9 %
0.0 %
0.0 %
R2 1.5 %
0.0 %
0.0 %
R3 1.7 %
0.0 %
0.0 %
R4 2.1 %
0.0 %
0.0 %
R5 2.1 %
0.0 %
0.7 %
R6 1.4 %
0.0 %
0.0 %
R7 1.6 %
0.0 %
0.0 %
R8 1.9 %
0.0 %
0.0 %
R9 1.5 %
0.0 %
0.0 %
R10 1.8 %
0.0 %
0.0 %
R11 1.5 %
0.0 %
0.0 %
R12 1.4 %
0.0 %
100.0 %
R13 1.6 %
0.0 %
0.0 %
R14 2.5 %
0.0 %
0.0 %
R15 2.5 %
0.0 %
0.0 %
R16 1.8 %
0.0 %
0.0 %
R17 2.1 %
0.0 %
0.0 %
R18 2.0 %
0.0 %
0.0 %
R19 2.1 %
0.0 %
0.0 %
R20 1.9 %
0.0 %
0.0 %
R21 1.6 %
0.0 %
0.0 %
R22 1.4 %
0.0 %
0.0 %
R23 1.6 %
0.0 %
0.0 %
R24 2.0 %
0.0 %
13.1 %

Missing code observations by satellite > 15°: 
SV Missing C1 Missing C2P
G1 0.0 %
0.0 %
G2 0.0 %
0.0 %
G3 0.0 %
0.0 %
G5 0.0 %
0.0 %
G6 0.0 %
0.0 %
G7 0.0 %
0.0 %
G8 0.0 %
0.0 %
G9 0.0 %
0.0 %
G10 0.0 %
0.0 %
G11 0.0 %
0.0 %
G12 0.0 %
0.0 %
G13 0.0 %
0.0 %
G14 0.0 %
0.0 %
G15 0.0 %
0.0 %
G16 0.0 %
0.0 %
G17 0.0 %
0.0 %
G18 0.0 %
0.0 %
G19 0.0 %
0.0 %
G20 0.0 %
0.0 %
G21 0.0 %
0.0 %
G22 0.0 %
0.0 %
G23 0.0 %
0.0 %
G24 0.0 %
0.0 %
G25 0.0 %
0.0 %
G26 0.0 %
0.0 %
G27 0.0 %
0.0 %
G28 0.0 %
0.0 %
G29 0.0 %
0.0 %
G30 0.0 %
0.0 %
G31 0.0 %
0.0 %
G32 0.0 %
0.0 %
R1 0.0 %
0.0 %
R2 0.0 %
0.0 %
R3 0.0 %
0.0 %
R4 0.0 %
0.0 %
R5 0.0 %
0.5 %
R6 0.0 %
0.0 %
R7 0.0 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
0.0 %
R10 0.0 %
0.0 %
R11 0.0 %
0.0 %
R12 0.0 %
100.0 %
R13 0.0 %
0.0 %
R14 0.0 %
0.0 %
R15 0.0 %
0.0 %
R16 0.0 %
0.0 %
R17 0.0 %
0.0 %
R18 0.0 %
0.0 %
R19 0.0 %
0.0 %
R20 0.0 %
0.0 %
R21 0.0 %
0.0 %
R22 0.0 %
0.0 %
R23 0.0 %
0.0 %
R24 0.0 %
11.5 %

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Observations
85 - 90 0
0
0
0.3 %
80 - 85 0
0
0
1.6 %
75 - 80 0
0
0
1.7 %
70 - 75 0
0
0
2.3 %
65 - 70 0
0
0
4.0 %
60 - 65 0
0
0
4.9 %
55 - 60 0
0
0
6.5 %
50 - 55 0
0
0
8.6 %
45 - 50 0
1
0
9.3 %
40 - 45 0
0
0
8.5 %
35 - 40 1
3
0
10.2 %
30 - 35 0
7
0
10.0 %
25 - 30 1
7
0
10.1 %
20 - 25 5
12
0
9.7 %
15 - 20 5
15
0
12.6 %
10 - 15 0
0
0
0.0 %
5 - 10 0
0
0
0.0 %
0 - 5 0
0
0
0.0 %

Signal to Noise Ratio by satellite > 15°: 
SV L1/E1 L2 L5/E5a E5b E5a+b
G1 8.5
7.1
- - -
G2 8.4
7.0
- - -
G3 8.6
7.3
- - -
G5 8.8
7.1
- - -
G6 8.5
7.6
- - -
G7 8.5
5.9
- - -
G8 8.5
7.2
- - -
G9 8.6
7.6
- - -
G10 8.0
6.4
- - -
G11 8.4
6.4
- - -
G12 8.7
6.9
- - -
G13 8.5
6.2
- - -
G14 7.6
5.6
- - -
G15 8.8
7.0
- - -
G16 8.5
6.7
- - -
G17 8.6
6.8
- - -
G18 7.7
5.1
- - -
G19 8.0
6.6
- - -
G20 8.4
6.7
- - -
G21 8.4
6.4
- - -
G22 8.5
7.0
- - -
G23 8.6
6.5
- - -
G24 8.4
7.3
- - -
G25 8.5
7.1
- - -
G26 8.5
7.2
- - -
G27 8.5
7.4
- - -
G28 7.8
5.3
- - -
G29 8.8
6.9
- - -
G30 8.6
7.2
- - -
G31 8.7
7.1
- - -
G32 8.4
6.9
- - -
R1 7.8
4.9
- - -
R2 8.3
6.7
- - -
R3 7.8
6.7
- - -
R4 7.8
6.5
- - -
R5 6.5
3.6
- - -
R6 7.0
4.9
- - -
R7 8.2
7.0
- - -
R8 7.7
6.5
- - -
R9 7.5
6.8
- - -
R10 7.7
4.7
- - -
R11 8.0
6.5
- - -
R12 7.7
- - - -
R13 6.6
5.1
- - -
R14 8.1
6.4
- - -
R15 7.6
4.7
- - -
R16 6.5
5.3
- - -
R17 7.8
6.6
- - -
R18 7.8
6.9
- - -
R19 7.3
6.5
- - -
R20 6.5
6.7
- - -
R21 7.9
6.7
- - -
R22 8.3
7.0
- - -
R23 7.8
4.7
- - -
R24 6.2
3.1
- - -
Average GPS: 8.4
6.8
- - -
Average GLONASS: 7.5
5.8
- - -
Average Galileo: - - - - -
Average All: 8.0
6.4
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 34.8 ° 0.29 m
0.29 m
- - -
G2 39.3 ° 0.26 m
0.27 m
- - -
G3 46.8 ° 0.26 m
0.29 m
- - -
G5 49.5 ° 0.23 m
0.26 m
- - -
G6 49.8 ° 0.26 m
0.28 m
- - -
G7 34.4 ° 0.32 m
0.36 m
- - -
G8 40.3 ° 0.30 m
0.30 m
- - -
G9 51.2 ° 0.21 m
0.25 m
- - -
G10 28.4 ° 0.43 m
0.43 m
- - -
G11 38.6 ° 0.28 m
0.32 m
- - -
G12 50.0 ° 0.26 m
0.32 m
- - -
G13 34.8 ° 0.33 m
0.28 m
- - -
G14 33.3 ° 0.38 m
0.36 m
- - -
G15 43.9 ° 0.30 m
0.29 m
- - -
G16 46.1 ° 0.28 m
0.28 m
- - -
G17 39.3 ° 0.35 m
0.31 m
- - -
G18 27.3 ° 0.41 m
0.33 m
- - -
G19 35.5 ° 0.35 m
0.31 m
- - -
G20 40.7 ° 0.28 m
0.29 m
- - -
G21 36.7 ° 0.30 m
0.32 m
- - -
G22 51.6 ° 0.24 m
0.24 m
- - -
G23 42.7 ° 0.26 m
0.25 m
- - -
G24 35.9 ° 0.29 m
0.29 m
- - -
G25 40.5 ° 0.27 m
0.30 m
- - -
G26 42.2 ° 0.33 m
0.29 m
- - -
G27 34.5 ° 0.33 m
0.30 m
- - -
G28 26.7 ° 0.40 m
0.38 m
- - -
G29 46.2 ° 0.30 m
0.24 m
- - -
G30 40.4 ° 0.27 m
0.25 m
- - -
G31 50.0 ° 0.25 m
0.23 m
- - -
G32 36.5 ° 0.28 m
0.32 m
- - -
R1 32.3 ° 0.35 m
0.37 m
- - -
R2 43.9 ° 0.22 m
0.26 m
- - -
R3 48.7 ° 0.27 m
0.33 m
- - -
R4 36.3 ° 0.33 m
0.35 m
- - -
R5 38.0 ° 0.33 m
0.30 m
- - -
R6 51.2 ° 0.23 m
0.28 m
- - -
R7 42.5 ° 0.24 m
0.28 m
- - -
R8 32.0 ° 0.33 m
0.30 m
- - -
R9 37.2 ° 0.32 m
0.36 m
- - -
R10 26.6 ° 0.35 m
0.38 m
- - -
R11 37.7 ° 0.27 m
0.35 m
- - -
R12 - - - - - -
R13 41.9 ° 0.25 m
0.30 m
- - -
R14 32.1 ° 0.30 m
0.32 m
- - -
R15 41.2 ° 0.25 m
0.31 m
- - -
R16 48.9 ° 0.27 m
0.35 m
- - -
R17 49.3 ° 0.32 m
0.35 m
- - -
R18 48.9 ° 0.21 m
0.31 m
- - -
R19 33.0 ° 0.31 m
0.32 m
- - -
R20 31.3 ° 0.32 m
0.37 m
- - -
R21 42.9 ° 0.28 m
0.29 m
- - -
R22 49.5 ° 0.21 m
0.28 m
- - -
R23 36.3 ° 0.33 m
0.32 m
- - -
R24 26.5 ° 0.32 m
0.31 m
- - -
Average GPS: - 0.30 m
0.30 m
- - -
Average GLONASS: - 0.29 m
0.32 m
- - -
Average Galileo: - - - - - -
Average All: - 0.29 m
0.31 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.16 m
0.29 m
- - -
80 - 85 0.16 m
0.28 m
- - -
75 - 80 0.17 m
0.22 m
- - -
70 - 75 0.18 m
0.26 m
- - -
65 - 70 0.18 m
0.22 m
- - -
60 - 65 0.22 m
0.21 m
- - -
55 - 60 0.21 m
0.24 m
- - -
50 - 55 0.23 m
0.26 m
- - -
45 - 50 0.24 m
0.27 m
- - -
40 - 45 0.28 m
0.28 m
- - -
35 - 40 0.32 m
0.30 m
- - -
30 - 35 0.34 m
0.33 m
- - -
25 - 30 0.36 m
0.37 m
- - -
20 - 25 0.41 m
0.38 m
- - -
15 - 20 0.41 m
0.44 m
- - -
10 - 15 - - - - -
5 - 10 - - - - -
0 - 5 - - - - -


Observation File Messages:





GPS Navigation File Messages:




GLONASS Navigation File Messages:




General Messages:



Notes:


(*)  Signal strength is mapped between 1 (worst) and 9 (best), 5 is the threshold for good SNR, 0 indicates value is unknown 
(#)  A complete GPS observation contains non-zero L1, L2 code and phase measurements with a SNR of at least 0 
(#)  A complete GLONASS observation contains non-zero L1, L2 code and phase measurements with a SNR of at least 0 
(#)  A complete Galileo observation contains non-zero code and phase measurements with a SNR of at least 0 
(-)  The minimum duration of a data gap to be reported is 5 seconds 
(^)  A satellite has to be above the elevation mask with no observations recorded for at least 120 seconds to be reported 
The elevation mask is set at 15° 
Abbreviations: Av=Average, IOD=Ionospheric delay, Num=Number, Obs=Observations, MP=Multipath, SV=Satellite vehicle, Elev=Elevation, Nav=Navigation data (ephemeris), WLF=Wavelength factor  
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This file was processed using version 4.4.0.1