Leica SpiderQC v4.4 Quality Report


Program Run: 2018/01/02 00:04:05.04

File Details:


Observation File: argu0010.18o
GPS Navigation File: argu0010.18n
GLONASS Navigation File: argu0010.18g
Quality Testing:  Pass 

Station Details:


Marker Name/Number:  ARGU  ARGU   
Observer/Agency:       
Receiver #/Type/Vers:  495472  LEICA GRX1200+GNSS  9.20/6.405 
Antenna #/Type:    LEIAX1203+GNSS NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5437937.473  -1526630.565  2953126.614 
Approx Position (plh):  27° 45' 39.63136" N  15° 40' 53.03670" W  67.753m 
Diff. Est-Header:  0.7 m dX  -6.4 m dY  3.0 m dZ 
Diff. Est-Header:  7.1 m (2880 estimates) 

Session Summary:


Time of first obs:  2018/01/01 00:00:00.00 GPS 
Time of last obs:  2018/01/01 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1982, day 1 
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:  375 
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 13 slips, Threshold 45 slips 
Multipath:  Pass  Value 0.23m MP1 / 0.25m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 22 slips, Threshold 99 slips 
Multipath:  Pass  Value 0.24m MP1 / 0.28m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 94.8 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  43604 
Num possible obs > 0°:  51774 
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°:  25234 
Num obs GLONASS > 0°:  18370 
Num obs Galileo > 0°: 
Num obs All > 0°:  43604 

Epochs with < 5 SV > 15°:  (0.0 %) 
Epochs with all SV > 15°:  2846  (98.8 %) 
Epochs with full data > 15°:  2040  (70.8 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  5.2  3.4 
GDOP  3.2  6.2  4.2 

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 
R6  10.500  1741 / 1762  38.28° / 42.37°  341.39° / 345.96° 
Total:  10.500 (21 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000037 ms (at 2018/01/01 22:36:30.00) 
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°:  38723  22254  16469 
% obs > 15°:   99.9 %  100.0 %  99.8 % 
Num possible obs > 15°:  38757  22254  16503 
Num complete obs > 15°:  37899  22254  15645 
% complete obs > 15°:   97.8 %  100.0 %  94.8 % 
Average # SV per Epoch:  13.4   7.7   5.7  
         
Obs L2 : Obs L1:  0.979   1.000   0.951  
Obs L5 : Obs L1: 

Cycle Slips         
Num cycle slips > 15°:  35  13  22 
% slips per complete obs:  0.092 %  0.058 %  0.141 % 
Num complete obs per slip:  108283   171185   71114  
IOD Slips > 15°:  816  816 
Outliers > 15°: 
LLI L1 : Obs L1:  0.0001   0.0001  
LLI L2 : Obs L2:  0.0001   0.0001  
LLI L5 : Obs L5: 

Multipath         
MP1 RMS:  0.234 m  0.228 m  0.243 m 
MP2 RMS:  0.264 m  0.250 m  0.284 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 97.9 %
N/A N/A
L2P 97.9 %
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 15.01° 54.32° 852 852 (100.0 %)
0 (0.0 %) 0
G2 15.04° 63.96° 585 585 (100.0 %)
0 (0.0 %) 1
G3 15.05° 79.06° 727 727 (100.0 %)
0 (0.0 %) 0
G5 15.05° 83.28° 711 711 (100.0 %)
0 (0.0 %) 1
G6 15.08° 85.10° 651 651 (100.0 %)
0 (0.0 %) 0
G7 15.03° 53.76° 710 710 (100.0 %)
0 (0.0 %) 0
G8 15.08° 65.57° 811 811 (100.0 %)
0 (0.0 %) 0
G9 15.03° 87.23° 665 665 (100.0 %)
0 (0.0 %) 0
G10 15.01° 41.54° 810 810 (100.0 %)
0 (0.0 %) 0
G11 15.02° 62.02° 820 820 (100.0 %)
0 (0.0 %) 0
G12 15.07° 85.20° 674 674 (100.0 %)
0 (0.0 %) 0
G13 15.11° 54.34° 852 852 (100.0 %)
0 (0.0 %) 0
G14 15.02° 51.56° 735 735 (100.0 %)
0 (0.0 %) 1
G15 15.05° 72.37° 776 776 (100.0 %)
0 (0.0 %) 0
G16 15.02° 76.39° 739 739 (100.0 %)
0 (0.0 %) 1
G17 15.05° 63.49° 570 570 (100.0 %)
0 (0.0 %) 1
G18 15.02° 39.89° 810 810 (100.0 %)
0 (0.0 %) 2
G19 15.00° 56.16° 706 706 (100.0 %)
0 (0.0 %) 2
G20 15.01° 66.24° 592 592 (100.0 %)
0 (0.0 %) 1
G21 15.11° 58.54° 582 582 (100.0 %)
0 (0.0 %) 0
G22 15.05° 88.43° 706 706 (100.0 %)
0 (0.0 %) 0
G23 15.01° 69.70° 616 616 (100.0 %)
0 (0.0 %) 0
G24 15.07° 56.77° 850 850 (100.0 %)
0 (0.0 %) 0
G25 15.09° 65.79° 794 794 (100.0 %)
0 (0.0 %) 1
G26 15.01° 68.63° 803 803 (100.0 %)
0 (0.0 %) 0
G27 15.14° 53.69° 863 863 (100.0 %)
0 (0.0 %) 0
G28 15.08° 38.56° 818 818 (100.0 %)
0 (0.0 %) 1
G29 15.06° 77.47° 616 616 (100.0 %)
0 (0.0 %) 0
G30 15.10° 65.10° 586 586 (100.0 %)
0 (0.0 %) 0
G31 15.01° 85.82° 672 672 (100.0 %)
0 (0.0 %) 0
G32 15.04° 58.44° 552 552 (100.0 %)
0 (0.0 %) 1
R1 15.00° 58.30° 825 825 (100.0 %)
0 (0.0 %) 0
R2 15.06° 84.93° 650 645 (99.2 %)
0 (0.0 %) 3
R3 15.05° 70.54° 624 624 (100.0 %)
0 (0.0 %) 0
R4 15.02° 48.27° 764 764 (100.0 %)
0 (0.0 %) 0
R5 15.09° 50.93° 750 750 (100.0 %)
0 (0.0 %) 2
R6 15.15° 74.85° 459 430 (93.7 %)
0 (0.0 %) 8
R7 15.02° 82.21° 686 686 (100.0 %)
0 (0.0 %) 0
R8 15.02° 58.65° 824 824 (100.0 %)
0 (0.0 %) 1
R9 15.04° 71.90° 618 618 (100.0 %)
0 (0.0 %) 0
R10 15.08° 48.44° 824 824 (100.0 %)
0 (0.0 %) 0
R11 15.05° 72.19° 971 971 (100.0 %)
0 (0.0 %) 0
R12 15.10° 84.52° 801 801 (100.0 %)
0 (0.0 %) 0
R13 15.01° 57.47° 710 710 (100.0 %)
0 (0.0 %) 1
R14 15.02° 37.09° 710 710 (100.0 %)
0 (0.0 %) 0
R15 15.01° 56.00° 644 644 (100.0 %)
0 (0.0 %) 0
R16 15.07° 84.85° 539 539 (100.0 %)
0 (0.0 %) 0
R17 15.06° 70.28° 617 617 (100.0 %)
0 (0.0 %) 0
R18 15.02° 86.26° 542 542 (100.0 %)
0 (0.0 %) 0
R19 15.03° 63.13° 558 558 (100.0 %)
0 (0.0 %) 1
R20 15.05° 39.22° 710 710 (100.0 %)
0 (0.0 %) 0
R21 15.19° 46.23° 136 136 (100.0 %)
0 (0.0 %) 0
R22 15.07° 84.85° 796 796 (100.0 %)
0 (0.0 %) 1
R23 15.06° 64.40° 973 973 (100.0 %)
0 (0.0 %) 1
R24 15.01° 48.74° 772 772 (100.0 %)
0 (0.0 %) 4

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 1.7 %
0.0 %
0.0 %
G7 1.8 %
0.0 %
0.0 %
G8 2.1 %
0.0 %
0.0 %
G9 1.7 %
0.0 %
0.0 %
G10 2.1 %
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 1.9 %
0.0 %
0.0 %
G17 1.5 %
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 2.1 %
0.0 %
0.0 %
G26 2.1 %
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 1.4 %
0.0 %
0.0 %
R1 2.1 %
0.0 %
0.0 %
R2 1.7 %
0.5 %
0.3 %
R3 1.6 %
0.0 %
0.0 %
R4 2.0 %
0.0 %
0.0 %
R5 1.9 %
0.0 %
0.1 %
R6 1.1 %
1.4 %
1.2 %
R7 1.8 %
0.0 %
0.0 %
R8 2.1 %
0.0 %
0.0 %
R9 1.6 %
0.0 %
0.0 %
R10 2.1 %
0.0 %
0.0 %
R11 2.5 %
0.0 %
0.0 %
R12 2.1 %
0.0 %
100.0 %
R13 1.8 %
0.0 %
0.0 %
R14 1.8 %
0.0 %
0.0 %
R15 1.7 %
0.0 %
0.0 %
R16 1.4 %
0.2 %
0.0 %
R17 1.6 %
0.0 %
0.0 %
R18 1.4 %
0.0 %
0.0 %
R19 1.4 %
0.0 %
0.0 %
R20 1.8 %
0.0 %
0.0 %
R21 0.4 %
0.0 %
0.0 %
R22 2.1 %
0.1 %
0.1 %
R23 2.5 %
0.0 %
0.0 %
R24 2.0 %
0.0 %
1.3 %

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 %
0.0 %
R6 0.0 %
0.2 %
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 %
1.0 %

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
1
0
2.7 %
65 - 70 0
0
0
3.9 %
60 - 65 0
2
0
5.0 %
55 - 60 0
0
0
6.2 %
50 - 55 0
1
0
8.6 %
45 - 50 1
0
0
9.3 %
40 - 45 1
0
0
8.3 %
35 - 40 1
1
0
10.3 %
30 - 35 1
0
0
9.9 %
25 - 30 2
2
0
10.1 %
20 - 25 2
4
0
9.8 %
15 - 20 5
11
0
12.4 %
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
7.0
- - -
G2 8.3
6.7
- - -
G3 8.5
7.1
- - -
G5 8.8
6.9
- - -
G6 8.5
7.3
- - -
G7 8.5
5.8
- - -
G8 8.5
7.0
- - -
G9 8.6
7.4
- - -
G10 8.0
6.2
- - -
G11 8.5
6.1
- - -
G12 8.7
6.6
- - -
G13 8.5
6.0
- - -
G14 7.5
5.3
- - -
G15 8.7
6.7
- - -
G16 8.5
6.5
- - -
G17 8.7
6.5
- - -
G18 7.7
4.9
- - -
G19 8.0
6.3
- - -
G20 8.3
6.5
- - -
G21 8.4
6.1
- - -
G22 8.5
6.8
- - -
G23 8.6
6.2
- - -
G24 8.4
7.2
- - -
G25 8.5
6.9
- - -
G26 8.5
7.0
- - -
G27 8.5
7.2
- - -
G28 7.8
5.1
- - -
G29 8.7
6.7
- - -
G30 8.6
7.0
- - -
G31 8.7
6.8
- - -
G32 8.5
7.0
- - -
R1 7.1
5.3
- - -
R2 7.5
7.0
- - -
R3 7.5
7.2
- - -
R4 7.5
6.9
- - -
R5 6.0
3.8
- - -
R6 6.4
5.6
- - -
R7 7.3
7.1
- - -
R8 6.7
6.9
- - -
R9 7.5
7.3
- - -
R10 7.3
5.2
- - -
R11 7.6
7.1
- - -
R12 7.3
- - - -
R13 5.5
5.1
- - -
R14 7.3
6.6
- - -
R15 6.7
4.4
- - -
R16 6.3
5.6
- - -
R17 7.5
7.0
- - -
R18 7.5
7.3
- - -
R19 6.8
6.6
- - -
R20 5.4
6.8
- - -
R21 7.1
6.4
- - -
R22 7.8
7.5
- - -
R23 7.5
5.3
- - -
R24 5.9
3.6
- - -
Average GPS: 8.4
6.5
- - -
Average GLONASS: 7.0
6.2
- - -
Average Galileo: - - - - -
Average All: 7.8
6.4
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 34.7 ° 0.21 m
0.23 m
- - -
G2 39.5 ° 0.23 m
0.23 m
- - -
G3 47.1 ° 0.24 m
0.26 m
- - -
G5 49.2 ° 0.17 m
0.20 m
- - -
G6 50.1 ° 0.21 m
0.24 m
- - -
G7 34.4 ° 0.25 m
0.27 m
- - -
G8 40.3 ° 0.20 m
0.21 m
- - -
G9 51.1 ° 0.22 m
0.25 m
- - -
G10 28.3 ° 0.24 m
0.27 m
- - -
G11 38.5 ° 0.20 m
0.20 m
- - -
G12 50.1 ° 0.22 m
0.32 m
- - -
G13 34.7 ° 0.20 m
0.23 m
- - -
G14 33.3 ° 0.34 m
0.35 m
- - -
G15 43.7 ° 0.19 m
0.22 m
- - -
G16 45.7 ° 0.15 m
0.18 m
- - -
G17 39.3 ° 0.24 m
0.23 m
- - -
G18 27.5 ° 0.31 m
0.32 m
- - -
G19 35.6 ° 0.29 m
0.29 m
- - -
G20 40.6 ° 0.20 m
0.22 m
- - -
G21 36.8 ° 0.23 m
0.28 m
- - -
G22 51.7 ° 0.22 m
0.27 m
- - -
G23 42.4 ° 0.23 m
0.27 m
- - -
G24 35.9 ° 0.22 m
0.26 m
- - -
G25 40.4 ° 0.29 m
0.27 m
- - -
G26 41.8 ° 0.18 m
0.20 m
- - -
G27 34.4 ° 0.21 m
0.23 m
- - -
G28 26.8 ° 0.27 m
0.31 m
- - -
G29 46.3 ° 0.22 m
0.25 m
- - -
G30 40.1 ° 0.24 m
0.28 m
- - -
G31 50.4 ° 0.17 m
0.21 m
- - -
G32 36.7 ° 0.26 m
0.22 m
- - -
R1 36.6 ° 0.21 m
0.27 m
- - -
R2 50.0 ° 0.18 m
0.30 m
- - -
R3 42.8 ° 0.27 m
0.32 m
- - -
R4 31.6 ° 0.33 m
0.31 m
- - -
R5 33.0 ° 0.21 m
0.22 m
- - -
R6 45.0 ° 0.15 m
0.22 m
- - -
R7 48.6 ° 0.29 m
0.29 m
- - -
R8 36.8 ° 0.36 m
0.32 m
- - -
R9 43.5 ° 0.24 m
0.27 m
- - -
R10 31.8 ° 0.30 m
0.33 m
- - -
R11 43.6 ° 0.19 m
0.21 m
- - -
R12 - - - - - -
R13 36.2 ° 0.29 m
0.34 m
- - -
R14 26.1 ° 0.21 m
0.31 m
- - -
R15 35.5 ° 0.22 m
0.28 m
- - -
R16 50.0 ° 0.23 m
0.32 m
- - -
R17 42.7 ° 0.21 m
0.26 m
- - -
R18 50.6 ° 0.19 m
0.24 m
- - -
R19 39.1 ° 0.31 m
0.34 m
- - -
R20 27.1 ° 0.23 m
0.28 m
- - -
R21 30.7 ° 0.26 m
0.31 m
- - -
R22 50.0 ° 0.18 m
0.26 m
- - -
R23 39.7 ° 0.31 m
0.30 m
- - -
R24 31.9 ° 0.22 m
0.22 m
- - -
Average GPS: - 0.23 m
0.25 m
- - -
Average GLONASS: - 0.24 m
0.28 m
- - -
Average Galileo: - - - - - -
Average All: - 0.23 m
0.26 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.08 m
0.15 m
- - -
80 - 85 0.11 m
0.15 m
- - -
75 - 80 0.13 m
0.17 m
- - -
70 - 75 0.13 m
0.18 m
- - -
65 - 70 0.14 m
0.18 m
- - -
60 - 65 0.15 m
0.19 m
- - -
55 - 60 0.16 m
0.20 m
- - -
50 - 55 0.17 m
0.20 m
- - -
45 - 50 0.17 m
0.21 m
- - -
40 - 45 0.21 m
0.24 m
- - -
35 - 40 0.23 m
0.26 m
- - -
30 - 35 0.25 m
0.28 m
- - -
25 - 30 0.28 m
0.30 m
- - -
20 - 25 0.33 m
0.35 m
- - -
15 - 20 0.40 m
0.41 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