Leica SpiderQC v4.4 Quality Report


Program Run: 2016/06/07 00:00:40.80

File Details:


Observation File: graf1580.16o
GPS Navigation File: graf1580.16n
GLONASS Navigation File: graf1580.16g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  GRAF  31327M001   
Observer/Agency:       
Receiver #/Type/Vers:  495479  LEICA GRX1200+GNSS  8.71/6.112 
Antenna #/Type:  09270069  LEIAX1203+GNSS NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5387360.552  -1572097.162  3020885.985 
Approx Position (plh):  28° 27' 13.82589" N  16° 16' 4.38766" W  138.392m 
Diff. Est-Header:  2.4 m dX  -6.8 m dY  2.1 m dZ 
Diff. Est-Header:  7.5 m (2880 estimates) 

Session Summary:


Time of first obs:  2016/06/06 00:00:00.00 GPS 
Time of last obs:  2016/06/06 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1900, day 1 
Observation interval:  30.00 seconds 
UTC leap seconds:  17 seconds 

Num SVs with obs:  55 
Num SVs with nav:  55 
Total GPS orbits:  185 
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 8 slips, Threshold 44 slips 
Multipath:  Pass  Value 0.41m MP1 / 0.41m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 27 slips, Threshold 103 slips 
Multipath:  Fail  Value 0.40m MP1 / 0.51m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 95.3 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  44425 
Num possible obs > 0°:  52808 
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°:  25148 
Num obs GLONASS > 0°:  19277 
Num obs Galileo > 0°: 
Num obs All > 0°:  44425 

Epochs with < 5 SV > 15°:  (0.0 %) 
Epochs with all SV > 15°:  2823  (98.0 %) 
Epochs with full data > 15°:  2111  (73.3 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.7  5.0  3.4 
GDOP  3.1  6.3  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 
R12  22.500  1501 / 1546  19.52° / 25.14°  316.51° / 324.87° 
Total:  22.500 (45 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000042 ms (at 2016/06/06 12:47:30.00) 
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°:  39301  22124  17177 
% obs > 15°:   99.9 %  100.0 %  99.7 % 
Num possible obs > 15°:  39358  22124  17234 
Num complete obs > 15°:  38543  22124  16419 
% complete obs > 15°:   97.9 %  100.0 %  95.3 % 
Average # SV per Epoch:  13.6   7.7   6.0  
         
Obs L2 : Obs L1:  0.981   1.000   0.956  
Obs L5 : Obs L1: 

Cycle Slips         
Num cycle slips > 15°:  35  27 
% slips per complete obs:  0.091 %  0.036 %  0.164 % 
Num complete obs per slip:  110123   276550   60811  
IOD Slips > 15°:  757  757 
Outliers > 15°: 
LLI L1 : Obs L1: 
LLI L2 : Obs L2: 
LLI L5 : Obs L5: 

Multipath         
MP1 RMS:  0.404 m  0.407 m  0.399 m 
MP2 RMS:  0.450 m  0.407 m  0.508 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 98.1 %
N/A N/A
L2P 98.1 %
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 15.06° 56.03° 855 855 (100.0 %)
0 (0.0 %) 0
G2 15.01° 63.29° 580 580 (100.0 %)
0 (0.0 %) 1
G3 15.01° 79.36° 737 737 (100.0 %)
0 (0.0 %) 1
G5 15.08° 85.13° 704 704 (100.0 %)
0 (0.0 %) 1
G6 15.05° 88.65° 676 676 (100.0 %)
0 (0.0 %) 1
G7 15.01° 53.07° 732 732 (100.0 %)
0 (0.0 %) 0
G8 15.05° 65.02° 814 814 (100.0 %)
0 (0.0 %) 0
G9 15.05° 84.28° 661 661 (100.0 %)
0 (0.0 %) 0
G10 15.01° 41.21° 810 810 (100.0 %)
0 (0.0 %) 0
G11 15.03° 60.97° 833 833 (100.0 %)
0 (0.0 %) 0
G12 15.06° 85.42° 674 674 (100.0 %)
0 (0.0 %) 0
G13 15.02° 54.78° 848 848 (100.0 %)
0 (0.0 %) 0
G14 15.00° 58.33° 585 585 (100.0 %)
0 (0.0 %) 1
G15 15.09° 72.13° 779 779 (100.0 %)
0 (0.0 %) 0
G16 15.02° 77.04° 727 727 (100.0 %)
0 (0.0 %) 1
G17 15.02° 64.74° 583 583 (100.0 %)
0 (0.0 %) 0
G18 15.02° 42.38° 797 797 (100.0 %)
0 (0.0 %) 0
G19 15.05° 54.83° 731 731 (100.0 %)
0 (0.0 %) 0
G20 15.07° 68.60° 602 602 (100.0 %)
0 (0.0 %) 1
G21 15.08° 58.18° 576 576 (100.0 %)
0 (0.0 %) 0
G22 15.00° 88.05° 701 701 (100.0 %)
0 (0.0 %) 0
G23 15.08° 69.21° 619 619 (100.0 %)
0 (0.0 %) 0
G24 15.14° 58.44° 842 842 (100.0 %)
0 (0.0 %) 0
G25 15.02° 67.35° 785 785 (100.0 %)
0 (0.0 %) 0
G26 15.06° 69.06° 789 789 (100.0 %)
0 (0.0 %) 0
G27 15.03° 54.97° 851 851 (100.0 %)
0 (0.0 %) 0
G28 15.02° 36.43° 822 822 (100.0 %)
0 (0.0 %) 0
G29 15.14° 76.50° 613 613 (100.0 %)
0 (0.0 %) 0
G30 15.16° 64.25° 578 578 (100.0 %)
0 (0.0 %) 0
G31 15.01° 86.43° 665 665 (100.0 %)
0 (0.0 %) 1
G32 15.02° 59.41° 555 555 (100.0 %)
0 (0.0 %) 0
R1 15.02° 37.36° 711 711 (100.0 %)
0 (0.0 %) 0
R2 15.02° 59.95° 632 632 (100.0 %)
0 (0.0 %) 1
R3 15.06° 84.18° 807 807 (100.0 %)
0 (0.0 %) 1
R4 15.09° 70.83° 976 976 (100.0 %)
0 (0.0 %) 0
R5 15.02° 50.91° 880 880 (100.0 %)
0 (0.0 %) 0
R6 15.06° 74.07° 609 609 (100.0 %)
0 (0.0 %) 0
R7 15.00° 82.96° 538 538 (100.0 %)
0 (0.0 %) 0
R8 15.05° 59.25° 604 604 (100.0 %)
0 (0.0 %) 0
R9 15.10° 72.16° 616 616 (100.0 %)
0 (0.0 %) 3
R10 15.00° 49.27° 751 751 (100.0 %)
0 (0.0 %) 0
R11 15.06° 49.54° 752 752 (100.0 %)
0 (0.0 %) 0
R12 15.32° 72.70° 573 517 (90.2 %)
0 (0.0 %) 7
R13 15.03° 82.86° 698 698 (100.0 %)
0 (0.0 %) 0
R14 15.09° 58.60° 823 823 (100.0 %)
0 (0.0 %) 1
R15 15.05° 57.72° 825 825 (100.0 %)
0 (0.0 %) 1
R16 15.04° 83.82° 681 680 (99.9 %)
0 (0.0 %) 9
R17 15.10° 52.46° 904 904 (100.0 %)
0 (0.0 %) 0
R18 15.04° 86.26° 812 812 (100.0 %)
0 (0.0 %) 0
R19 15.02° 70.13° 813 813 (100.0 %)
0 (0.0 %) 0
R20 15.07° 38.84° 714 714 (100.0 %)
0 (0.0 %) 0
R21 15.03° 58.60° 623 623 (100.0 %)
0 (0.0 %) 0
R22 15.05° 83.13° 531 531 (100.0 %)
0 (0.0 %) 0
R23 15.03° 70.85° 615 615 (100.0 %)
0 (0.0 %) 0
R24 15.05° 50.39° 746 746 (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 1.9 %
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 1.5 %
0.0 %
0.0 %
G15 2.0 %
0.0 %
0.0 %
G16 1.8 %
0.0 %
0.0 %
G17 1.5 %
0.0 %
0.0 %
G18 2.0 %
0.0 %
0.0 %
G19 1.9 %
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 2.1 %
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 1.4 %
0.0 %
0.0 %
R1 1.8 %
0.0 %
0.0 %
R2 1.6 %
0.0 %
0.0 %
R3 2.1 %
0.0 %
0.0 %
R4 2.5 %
0.0 %
0.0 %
R5 2.2 %
0.0 %
0.0 %
R6 1.5 %
0.0 %
0.0 %
R7 1.4 %
0.0 %
0.0 %
R8 1.5 %
0.0 %
0.0 %
R9 1.6 %
0.0 %
0.0 %
R10 1.9 %
0.0 %
0.0 %
R11 1.9 %
0.0 %
100.0 %
R12 1.3 %
0.0 %
0.0 %
R13 1.8 %
0.0 %
0.0 %
R14 2.1 %
0.0 %
0.0 %
R15 2.1 %
0.0 %
0.0 %
R16 1.7 %
0.0 %
0.3 %
R17 2.3 %
0.0 %
0.0 %
R18 2.1 %
0.0 %
0.0 %
R19 2.1 %
0.0 %
0.0 %
R20 1.8 %
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 1.9 %
0.0 %
0.5 %

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 %
0.0 %
R7 0.0 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
0.0 %
R10 0.0 %
0.0 %
R11 0.0 %
100.0 %
R12 0.0 %
0.0 %
R13 0.0 %
0.0 %
R14 0.0 %
0.0 %
R15 0.0 %
0.0 %
R16 0.0 %
0.1 %
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 %
0.4 %

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Observations
85 - 90 0
0
0
0.4 %
80 - 85 0
0
0
1.5 %
75 - 80 0
0
0
1.7 %
70 - 75 0
0
0
2.6 %
65 - 70 1
1
0
3.9 %
60 - 65 0
1
0
4.8 %
55 - 60 0
1
0
7.1 %
50 - 55 0
1
0
8.5 %
45 - 50 2
1
0
9.3 %
40 - 45 3
0
0
8.4 %
35 - 40 0
2
0
10.1 %
30 - 35 2
3
0
9.8 %
25 - 30 0
1
0
9.7 %
20 - 25 0
4
0
9.5 %
15 - 20 0
12
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 8.3
7.2
- - -
G2 8.4
7.1
- - -
G3 8.4
7.3
- - -
G5 8.6
7.5
- - -
G6 8.4
7.5
- - -
G7 8.1
6.5
- - -
G8 8.3
7.0
- - -
G9 8.5
7.4
- - -
G10 7.9
6.5
- - -
G11 8.4
6.6
- - -
G12 8.5
7.3
- - -
G13 8.5
6.2
- - -
G14 8.1
6.1
- - -
G15 8.5
7.2
- - -
G16 8.4
6.6
- - -
G17 8.6
7.3
- - -
G18 7.8
5.2
- - -
G19 8.0
6.7
- - -
G20 8.4
6.7
- - -
G21 8.3
6.5
- - -
G22 8.5
7.2
- - -
G23 8.6
6.6
- - -
G24 8.2
7.3
- - -
G25 8.2
7.0
- - -
G26 8.3
7.0
- - -
G27 8.4
7.5
- - -
G28 7.8
5.3
- - -
G29 8.5
7.3
- - -
G30 8.4
7.2
- - -
G31 8.5
7.4
- - -
G32 8.6
7.1
- - -
R1 7.3
5.2
- - -
R2 7.5
7.1
- - -
R3 7.7
7.5
- - -
R4 7.8
7.3
- - -
R5 6.4
6.3
- - -
R6 7.5
6.1
- - -
R7 8.0
7.6
- - -
R8 7.4
7.0
- - -
R9 7.7
7.6
- - -
R10 7.7
5.5
- - -
R11 7.3
- - - -
R12 4.7
6.8
- - -
R13 6.0
6.5
- - -
R14 5.8
5.5
- - -
R15 7.1
7.1
- - -
R16 6.2
4.2
- - -
R17 7.7
7.2
- - -
R18 8.1
7.6
- - -
R19 7.7
7.1
- - -
R20 5.9
7.0
- - -
R21 7.5
7.1
- - -
R22 7.8
7.6
- - -
R23 8.0
5.5
- - -
R24 6.4
3.7
- - -
Average GPS: 8.3
6.9
- - -
Average GLONASS: 7.1
6.5
- - -
Average Galileo: - - - - -
Average All: 7.8
6.7
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.5 ° 0.37 m
0.38 m
- - -
G2 39.1 ° 0.46 m
0.40 m
- - -
G3 47.2 ° 0.41 m
0.42 m
- - -
G5 50.1 ° 0.38 m
0.41 m
- - -
G6 51.8 ° 0.36 m
0.41 m
- - -
G7 34.0 ° 0.45 m
0.41 m
- - -
G8 40.0 ° 0.33 m
0.37 m
- - -
G9 49.7 ° 0.39 m
0.38 m
- - -
G10 28.1 ° 0.47 m
0.45 m
- - -
G11 38.0 ° 0.35 m
0.36 m
- - -
G12 50.2 ° 0.53 m
0.45 m
- - -
G13 34.9 ° 0.36 m
0.40 m
- - -
G14 36.7 ° 0.42 m
0.40 m
- - -
G15 43.6 ° 0.35 m
0.36 m
- - -
G16 46.0 ° 0.35 m
0.39 m
- - -
G17 39.9 ° 0.47 m
0.41 m
- - -
G18 28.7 ° 0.46 m
0.50 m
- - -
G19 34.9 ° 0.46 m
0.43 m
- - -
G20 41.8 ° 0.45 m
0.38 m
- - -
G21 36.6 ° 0.37 m
0.41 m
- - -
G22 51.5 ° 0.41 m
0.41 m
- - -
G23 42.1 ° 0.42 m
0.40 m
- - -
G24 36.8 ° 0.39 m
0.37 m
- - -
G25 41.2 ° 0.41 m
0.37 m
- - -
G26 42.1 ° 0.35 m
0.37 m
- - -
G27 35.0 ° 0.38 m
0.40 m
- - -
G28 25.7 ° 0.43 m
0.49 m
- - -
G29 45.8 ° 0.41 m
0.44 m
- - -
G30 39.7 ° 0.43 m
0.39 m
- - -
G31 50.7 ° 0.39 m
0.42 m
- - -
G32 37.2 ° 0.43 m
0.44 m
- - -
R1 26.2 ° 0.45 m
0.52 m
- - -
R2 37.5 ° 0.33 m
0.55 m
- - -
R3 49.6 ° 0.37 m
0.48 m
- - -
R4 43.0 ° 0.46 m
0.53 m
- - -
R5 33.0 ° 0.38 m
0.45 m
- - -
R6 44.6 ° 0.30 m
0.47 m
- - -
R7 49.0 ° 0.42 m
0.45 m
- - -
R8 37.2 ° 0.45 m
0.53 m
- - -
R9 43.6 ° 0.41 m
0.57 m
- - -
R10 32.1 ° 0.37 m
0.52 m
- - -
R11 - - - - - -
R12 44.0 ° 0.32 m
0.40 m
- - -
R13 48.9 ° 0.43 m
0.49 m
- - -
R14 36.8 ° 0.40 m
0.45 m
- - -
R15 36.4 ° 0.34 m
0.51 m
- - -
R16 49.4 ° 0.41 m
0.54 m
- - -
R17 33.8 ° 0.39 m
0.47 m
- - -
R18 50.7 ° 0.33 m
0.43 m
- - -
R19 42.6 ° 0.45 m
0.54 m
- - -
R20 27.0 ° 0.45 m
0.54 m
- - -
R21 36.8 ° 0.42 m
0.57 m
- - -
R22 49.1 ° 0.37 m
0.56 m
- - -
R23 42.9 ° 0.52 m
0.57 m
- - -
R24 32.7 ° 0.40 m
0.52 m
- - -
Average GPS: - 0.41 m
0.41 m
- - -
Average GLONASS: - 0.40 m
0.51 m
- - -
Average Galileo: - - - - - -
Average All: - 0.40 m
0.45 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.20 m
0.22 m
- - -
80 - 85 0.22 m
0.25 m
- - -
75 - 80 0.23 m
0.24 m
- - -
70 - 75 0.25 m
0.27 m
- - -
65 - 70 0.27 m
0.32 m
- - -
60 - 65 0.26 m
0.28 m
- - -
55 - 60 0.29 m
0.32 m
- - -
50 - 55 0.33 m
0.35 m
- - -
45 - 50 0.37 m
0.41 m
- - -
40 - 45 0.45 m
0.49 m
- - -
35 - 40 0.43 m
0.52 m
- - -
30 - 35 0.43 m
0.53 m
- - -
25 - 30 0.47 m
0.52 m
- - -
20 - 25 0.55 m
0.52 m
- - -
15 - 20 0.50 m
0.57 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