Leica SpiderQC v4.2 Quality Report


Program Run: 2014/02/03 00:06:05.79

File Details:


Observation File: snmg0330.14o
GPS Navigation File: snmg0330.14n
GLONASS Navigation File: snmg0330.14g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  SNMG  31319M001   
Observer/Agency:       
Receiver #/Type/Vers:  355503  LEICA GRX1200GGPRO  7.80/3.054 
Antenna #/Type:    LEIAX1202GG NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5396115.021  -1610235.359  2986234.459 
Approx Position (plh):  28° 05' 47.27675" N  16° 36' 55.58776" W  625.079m 
Diff. Est-Header:  2.9 m dX  -7.2 m dY  7.8 m dZ 
Diff. Est-Header:  11.0 m (2857 estimates) 

Session Summary:


Time of first obs:  2014/02/02 00:00:00.00 GPS 
Time of last obs:  2014/02/02 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1778, day 0 
Observation interval:  30.00 seconds 
UTC leap seconds:  16 seconds 

Num SVs with obs:  49 
Num SVs with nav:  56 
Total GPS orbits:  172 
Total GLONASS orbits:  376 
Total Galileo orbits:  0 
SVs with obs:  G1 G2 G3 G4 G6 G7 G8 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R13 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without obs:  G5 G9 G10 G30 R10 R14 R15 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 G4 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:   
User Disabled SVs:  None 
Meteo epochs:  0 
Auxiliary epochs:  0 

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 18 slips, Threshold 40 slips 
Multipath:  Pass  Value 0.16m MP1 / 0.22m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.3 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 15 slips, Threshold 90 slips 
Multipath:  Pass  Value 0.17m MP1 / 0.27m MP2, Threshold 0.5 m 
Data Completeness:  Fail  Value 85.1 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  39268 
Num possible obs > 0°:  49671 
Num obs with invalid nav:  0 
Num obs without nav:  0 
Num obs to unhealthy SV:  0 
Num obs with WLF change:  0 
Num complete loss of lock:  0 

Num obs GPS > 0°:  22630 
Num obs GLONASS > 0°:  16638 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  39268 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  1052  (36.5 %) 
Epochs with full data > 15°:  1002  (34.8 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.9  30.7  3.8 
GDOP  3.4  34.4  4.7 

Data Gaps 
Num epochs with data:  2880 
Num epochs without data:  0 
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 
R11  2.500  39 / 44  15.01° / 15.98°  326.56° / 327.25° 
R10  198.500  1 / 398  48.29° / 15.04°  359.55° / 163.78° 
R14  79.000  707 / 865  15.01° / 15.04°  320.94° / 279.36° 
R18  10.000  1654 / 1674  20.83° / 16.32°  208.45° / 205.79° 
G8  5.500  1877 / 1888  45.54° / 43.47°  41.41° / 40.35° 
G26  5.500  1877 / 1888  52.33° / 52.73°  319.39° / 323.40° 
G8  5.500  1896 / 1907  41.59° / 39.49°  39.56° / 38.85° 
G26  5.500  1896 / 1907  53.04° / 53.33°  327.05° / 331.12° 
G24  22.500  1908 / 1953  15.86° / 24.24°  223.60° / 229.65° 
G8  2.000  1954 / 1958  29.50° / 29.50°  37.46° / 37.46° 
G26  4.000  1954 / 1962  53.96° / 53.96°  350.87° / 350.87° 
R14  230.500  1516 / 1977  15.19° / 15.08°  151.34° / 27.70° 
R15  265.000  1664 / 2194  15.22° / 15.17°  174.44° / 32.42° 
R10  289.500  2301 / 2880  15.06° / 44.25°  253.88° / 88.19° 
Total:  1125.500 (2251 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000087 ms (at 2014/02/02 16:16:30.00) 
Num of RX clock resets:  0 
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°:  35266  20227  15039  - 
% obs > 15°:   93.8 %  99.3 %  87.2 %  - 
Num possible obs > 15°:  37600  20361  17239  - 
Num complete obs > 15°:  34879  20209  14670  - 
% complete obs > 15°:   92.8 %  99.3 %  85.1 %  - 
Average # SV per Epoch:  12.2   7.0   5.2   - 
         
Obs L2 : Obs L1:  0.989   0.999   0.977   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  33  18  15  - 
% slips per complete obs:  0.095 %  0.089 %  0.102 %  - 
Num complete obs per slip:  105694   112272   97800   - 
IOD Slips > 15°:  394  24  370  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0003   0.0003   0.0002   - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.163 m  0.158 m  0.169 m  - 
MP2 RMS:  0.240 m  0.220 m  0.267 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 98.9 %
N/A N/A
L2P 98.9 %
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 15.02° 55.41° 853 853 (100.0 %)
0 (0.0 %) 1
G2 15.05° 64.23° 580 580 (100.0 %)
0 (0.0 %) 0
G3 15.08° 62.29° 809 809 (100.0 %)
0 (0.0 %) 1
G4 15.03° 88.85° 673 673 (100.0 %)
0 (0.0 %) 1
G6 15.01° 56.51° 857 857 (100.0 %)
0 (0.0 %) 0
G7 15.02° 52.84° 739 739 (100.0 %)
0 (0.0 %) 0
G8 15.07° 64.73° 576 547 (95.0 %)
0 (0.0 %) 0
G11 15.04° 60.11° 834 834 (100.0 %)
0 (0.0 %) 0
G12 15.08° 84.25° 684 684 (100.0 %)
0 (0.0 %) 0
G13 15.16° 79.41° 623 623 (100.0 %)
0 (0.0 %) 0
G14 15.11° 65.50° 586 586 (100.0 %)
0 (0.0 %) 1
G15 15.04° 69.31° 796 794 (99.7 %)
0 (0.0 %) 0
G16 15.03° 78.62° 722 722 (100.0 %)
0 (0.0 %) 0
G17 15.02° 62.08° 565 565 (100.0 %)
0 (0.0 %) 1
G18 15.03° 44.76° 781 773 (99.0 %)
0 (0.0 %) 4
G19 15.03° 60.99° 828 828 (100.0 %)
0 (0.0 %) 0
G20 15.08° 78.10° 740 740 (100.0 %)
0 (0.0 %) 1
G21 15.00° 54.41° 622 610 (98.1 %)
0 (0.0 %) 4
G22 15.01° 38.92° 816 816 (100.0 %)
0 (0.0 %) 2
G23 15.05° 66.64° 596 596 (100.0 %)
0 (0.0 %) 0
G24 15.05° 58.27° 845 799 (94.6 %)
0 (0.0 %) 0
G25 15.11° 65.98° 807 804 (99.6 %)
0 (0.0 %) 0
G26 15.04° 53.96° 828 795 (96.0 %)
0 (0.0 %) 0
G27 15.01° 55.03° 855 855 (100.0 %)
0 (0.0 %) 0
G28 15.02° 37.80° 820 819 (99.9 %)
0 (0.0 %) 0
G29 15.02° 77.27° 630 630 (100.0 %)
0 (0.0 %) 0
G31 15.03° 86.64° 671 671 (100.0 %)
0 (0.0 %) 1
G32 15.11° 78.33° 625 625 (100.0 %)
0 (0.0 %) 1
R1 15.01° 84.08° 661 661 (100.0 %)
0 (0.0 %) 0
R2 15.04° 71.53° 618 618 (100.0 %)
0 (0.0 %) 0
R3 15.10° 49.83° 756 756 (100.0 %)
0 (0.0 %) 0
R4 15.11° 49.93° 754 753 (99.9 %)
0 (0.0 %) 0
R5 15.01° 71.95° 618 618 (100.0 %)
0 (0.0 %) 0
R6 15.05° 82.84° 678 677 (99.9 %)
0 (0.0 %) 1
R7 15.05° 59.42° 822 814 (99.0 %)
0 (0.0 %) 0
R8 15.02° 59.11° 824 819 (99.4 %)
0 (0.0 %) 3
R9 15.00° 49.67° 951 951 (100.0 %)
0 (0.0 %) 0
R10 - - 978 0 (0.0 %)
0 (0.0 %) 0
R11 15.06° 85.42° 764 758 (99.2 %)
0 (0.0 %) 0
R12 15.05° 60.50° 596 595 (99.8 %)
0 (0.0 %) 1
R13 15.02° 37.88° 711 704 (99.0 %)
0 (0.0 %) 0
R14 - - 621 0 (0.0 %)
0 (0.0 %) 0
R15 - - 531 0 (0.0 %)
0 (0.0 %) 0
R16 15.05° 70.99° 615 614 (99.8 %)
0 (0.0 %) 0
R17 15.24° 85.30° 540 538 (99.6 %)
0 (0.0 %) 2
R18 15.02° 62.08° 564 540 (95.7 %)
0 (0.0 %) 0
R19 15.06° 38.95° 801 801 (100.0 %)
0 (0.0 %) 0
R20 15.01° 85.50° 813 811 (99.8 %)
0 (0.0 %) 0
R21 15.06° 83.44° 797 790 (99.1 %)
0 (0.0 %) 3
R22 15.02° 50.82° 843 838 (99.4 %)
0 (0.0 %) 4
R23 15.04° 48.67° 759 759 (100.0 %)
0 (0.0 %) 0
R24 15.03° 69.39° 624 624 (100.0 %)
0 (0.0 %) 1

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 2.4 %
0.0 %
0.0 %
G2 1.6 %
0.0 %
0.0 %
G3 2.3 %
0.0 %
0.0 %
G4 1.9 %
0.0 %
0.0 %
G6 2.4 %
0.0 %
0.0 %
G7 2.1 %
0.0 %
0.0 %
G8 1.6 %
0.0 %
0.0 %
G11 2.4 %
0.0 %
0.0 %
G12 1.9 %
0.0 %
0.0 %
G13 1.8 %
0.0 %
0.0 %
G14 1.7 %
0.0 %
0.0 %
G15 2.3 %
0.0 %
0.0 %
G16 2.0 %
0.0 %
0.0 %
G17 1.6 %
0.0 %
0.0 %
G18 2.2 %
0.0 %
1.8 %
G19 2.3 %
0.0 %
0.0 %
G20 2.1 %
0.0 %
0.0 %
G21 1.7 %
0.0 %
0.5 %
G22 2.3 %
0.0 %
0.1 %
G23 1.7 %
0.0 %
0.0 %
G24 2.3 %
0.0 %
0.0 %
G25 2.3 %
0.0 %
0.0 %
G26 2.3 %
0.0 %
0.0 %
G27 2.4 %
0.0 %
0.0 %
G28 2.3 %
0.0 %
0.0 %
G29 1.8 %
0.0 %
0.0 %
G31 1.9 %
0.0 %
0.0 %
G32 1.8 %
0.0 %
0.0 %
R1 1.9 %
0.0 %
0.8 %
R2 1.8 %
0.0 %
0.0 %
R3 2.1 %
0.0 %
0.0 %
R4 2.1 %
0.0 %
0.0 %
R5 1.8 %
0.0 %
0.0 %
R6 1.9 %
0.0 %
0.0 %
R7 2.3 %
0.5 %
2.8 %
R8 2.3 %
0.4 %
3.2 %
R9 2.7 %
0.0 %
7.8 %
R11 2.1 %
0.0 %
4.4 %
R12 1.7 %
0.0 %
2.9 %
R13 2.0 %
0.0 %
2.6 %
R16 1.7 %
0.0 %
0.0 %
R17 1.5 %
0.0 %
0.0 %
R18 1.5 %
0.0 %
1.5 %
R19 2.3 %
0.0 %
2.6 %
R20 2.3 %
0.0 %
0.0 %
R21 2.2 %
0.1 %
10.8 %
R22 2.4 %
0.0 %
6.1 %
R23 2.2 %
0.0 %
0.0 %
R24 1.8 %
0.0 %
0.0 %

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 %
G4 0.0 %
0.0 %
G6 0.0 %
0.0 %
G7 0.0 %
0.0 %
G8 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 %
1.8 %
G19 0.0 %
0.0 %
G20 0.0 %
0.0 %
G21 0.0 %
0.5 %
G22 0.0 %
0.1 %
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 %
G31 0.0 %
0.0 %
G32 0.0 %
0.0 %
R1 0.0 %
0.8 %
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 0.5 %
2.8 %
R8 0.4 %
3.2 %
R9 0.0 %
7.8 %
R11 0.0 %
4.4 %
R12 0.0 %
2.9 %
R13 0.0 %
2.6 %
R16 0.0 %
0.0 %
R17 0.0 %
0.0 %
R18 0.0 %
1.5 %
R19 0.0 %
2.6 %
R20 0.0 %
0.0 %
R21 0.1 %
10.8 %
R22 0.0 %
6.1 %
R23 0.0 %
0.0 %
R24 0.0 %
0.0 %

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
1.1 %
75 - 80 0
0
0
1.9 %
70 - 75 0
0
0
2.2 %
65 - 70 0
0
0
3.4 %
60 - 65 0
1
0
5.2 %
55 - 60 0
0
0
7.2 %
50 - 55 0
1
0
8.7 %
45 - 50 0
0
0
9.5 %
40 - 45 1
0
0
8.4 %
35 - 40 0
0
0
10.5 %
30 - 35 1
1
0
10.1 %
25 - 30 0
2
0
9.9 %
20 - 25 6
2
0
10.0 %
15 - 20 10
8
0
11.7 %
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
6.8
- - -
G2 8.4
6.5
- - -
G3 8.4
6.0
- - -
G4 8.5
6.1
- - -
G6 8.3
6.1
- - -
G7 8.0
5.8
- - -
G8 8.4
6.0
- - -
G11 8.5
6.0
- - -
G12 8.5
6.8
- - -
G13 8.5
6.1
- - -
G14 8.2
5.9
- - -
G15 8.5
6.8
- - -
G16 8.5
6.3
- - -
G17 8.5
6.7
- - -
G18 7.7
4.7
- - -
G19 8.4
6.7
- - -
G20 8.3
6.3
- - -
G21 7.5
5.2
- - -
G22 7.8
5.5
- - -
G23 8.6
6.0
- - -
G24 8.3
6.9
- - -
G25 8.3
6.4
- - -
G26 8.4
6.0
- - -
G27 8.4
6.9
- - -
G28 7.7
4.8
- - -
G29 8.5
6.9
- - -
G31 8.6
6.9
- - -
G32 8.4
6.3
- - -
R1 7.3
3.4
- - -
R2 7.6
4.8
- - -
R3 7.2
4.8
- - -
R4 7.6
4.9
- - -
R5 7.7
5.2
- - -
R6 7.4
4.9
- - -
R7 7.5
5.0
- - -
R8 7.4
4.9
- - -
R9 5.8
3.5
- - -
R11 7.1
3.5
- - -
R12 6.0
4.0
- - -
R13 6.1
4.4
- - -
R16 7.3
5.0
- - -
R17 7.7
5.2
- - -
R18 7.2
4.8
- - -
R19 7.2
4.4
- - -
R20 6.1
5.1
- - -
R21 7.3
3.5
- - -
R22 7.5
5.0
- - -
R23 7.6
4.8
- - -
R24 7.7
5.2
- - -
Average GPS: 8.3
6.2
- - -
Average GLONASS: 7.2
4.6
- - -
Average Galileo: - - - - -
Average All: 7.8
5.5
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.2 ° 0.15 m
0.20 m
- - -
G2 39.6 ° 0.14 m
0.22 m
- - -
G3 38.7 ° 0.14 m
0.20 m
- - -
G4 51.9 ° 0.12 m
0.19 m
- - -
G6 35.8 ° 0.16 m
0.19 m
- - -
G7 33.9 ° 0.21 m
0.26 m
- - -
G8 39.9 ° 0.17 m
0.25 m
- - -
G11 37.6 ° 0.14 m
0.19 m
- - -
G12 49.7 ° 0.15 m
0.21 m
- - -
G13 47.3 ° 0.14 m
0.16 m
- - -
G14 40.3 ° 0.19 m
0.30 m
- - -
G15 42.2 ° 0.17 m
0.30 m
- - -
G16 46.8 ° 0.16 m
0.18 m
- - -
G17 38.5 ° 0.13 m
0.20 m
- - -
G18 29.9 ° 0.21 m
0.25 m
- - -
G19 38.0 ° 0.14 m
0.19 m
- - -
G20 46.6 ° 0.15 m
0.20 m
- - -
G21 34.7 ° 0.23 m
0.28 m
- - -
G22 27.0 ° 0.20 m
0.28 m
- - -
G23 40.8 ° 0.19 m
0.23 m
- - -
G24 36.7 ° 0.13 m
0.24 m
- - -
G25 40.5 ° 0.14 m
0.22 m
- - -
G26 34.5 ° 0.14 m
0.18 m
- - -
G27 35.0 ° 0.15 m
0.21 m
- - -
G28 26.4 ° 0.19 m
0.29 m
- - -
G29 46.1 ° 0.13 m
0.22 m
- - -
G31 50.8 ° 0.11 m
0.16 m
- - -
G32 46.7 ° 0.14 m
0.16 m
- - -
R1 49.5 ° 0.13 m
0.19 m
- - -
R2 43.3 ° 0.14 m
0.19 m
- - -
R3 32.5 ° 0.19 m
0.26 m
- - -
R4 32.5 ° 0.19 m
0.30 m
- - -
R5 43.5 ° 0.15 m
0.23 m
- - -
R6 48.9 ° 0.16 m
0.31 m
- - -
R7 37.2 ° 0.20 m
0.29 m
- - -
R8 37.1 ° 0.17 m
0.28 m
- - -
R9 32.3 ° 0.20 m
0.30 m
- - -
R11 50.2 ° 0.13 m
0.23 m
- - -
R12 37.8 ° 0.20 m
0.25 m
- - -
R13 26.4 ° 0.19 m
0.26 m
- - -
R16 43.0 ° 0.16 m
0.29 m
- - -
R17 50.3 ° 0.16 m
0.31 m
- - -
R18 38.5 ° 0.16 m
0.38 m
- - -
R19 27.0 ° 0.19 m
0.30 m
- - -
R20 50.3 ° 0.19 m
0.27 m
- - -
R21 49.3 ° 0.17 m
0.18 m
- - -
R22 32.9 ° 0.15 m
0.26 m
- - -
R23 31.9 ° 0.18 m
0.28 m
- - -
R24 42.2 ° 0.15 m
0.25 m
- - -
Average GPS: - 0.16 m
0.22 m
- - -
Average GLONASS: - 0.17 m
0.27 m
- - -
Average Galileo: - - - - - -
Average All: - 0.16 m
0.24 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.06 m
0.07 m
- - -
80 - 85 0.09 m
0.11 m
- - -
75 - 80 0.09 m
0.11 m
- - -
70 - 75 0.09 m
0.11 m
- - -
65 - 70 0.10 m
0.11 m
- - -
60 - 65 0.10 m
0.14 m
- - -
55 - 60 0.11 m
0.15 m
- - -
50 - 55 0.11 m
0.16 m
- - -
45 - 50 0.13 m
0.20 m
- - -
40 - 45 0.14 m
0.24 m
- - -
35 - 40 0.16 m
0.25 m
- - -
30 - 35 0.17 m
0.28 m
- - -
25 - 30 0.20 m
0.32 m
- - -
20 - 25 0.24 m
0.33 m
- - -
15 - 20 0.29 m
0.39 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  
-  It took 1.9 seconds to process this file 
-  This file was processed using version 4.2.0.10