Leica SpiderQC v4.4 Quality Report


Program Run: 2016/04/05 00:03:42.88

File Details:


Observation File: tias0950.16o
GPS Navigation File: tias0950.16n
GLONASS Navigation File: tias0950.16g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  TIAS  31320M001   
Observer/Agency:       
Receiver #/Type/Vers:  355494  LEICA GRX1200GGPRO  7.02/3.054 
Antenna #/Type:    LEIAX1202GG NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5427772.590  -1318560.286  3069385.170 
Approx Position (plh):  28° 57' 7.67645" N  13° 39' 15.39420" W  258.793m 
Diff. Est-Header:  1.8 m dX  -6.6 m dY  4.0 m dZ 
Diff. Est-Header:  7.9 m (2880 estimates) 

Session Summary:


Time of first obs:  2016/04/04 00:00:00.00 GPS 
Time of last obs:  2016/04/04 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1891, day 1 
Observation interval:  30.00 seconds 
UTC leap seconds:  17 seconds 

Num SVs with obs:  49 
Num SVs with nav:  56 
Total GPS orbits:  165 
Total GLONASS orbits:  367 
Total Galileo orbits:  0 
SVs with obs:  G1 G2 G3 G6 G7 G8 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 R11 R13 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without obs:  G4 G5 G9 G10 R10 R12 R14 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 5 slips, Threshold 40 slips 
Multipath:  Pass  Value 0.16m MP1 / 0.20m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 12 slips, Threshold 83 slips 
Multipath:  Pass  Value 0.16m MP1 / 0.21m MP2, Threshold 0.5 m 
Data Completeness:  Fail  Value 68.6 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  38156 
Num possible obs > 0°:  48669 
Num obs with invalid nav:  0 
Num obs without nav:  0 
Num obs to unhealthy SV:  110 
Num obs with WLF change:  0 
Num complete loss of lock:  0 

Num obs GPS > 0°:  22648 
Num obs GLONASS > 0°:  15508 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  38156 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  1074  (37.3 %) 
Epochs with full data > 15°:  556  (19.3 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.9  11.0  4.0 
GDOP  3.4  13.5  4.9 

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 
R14  14.000  1 / 29  21.27° / 15.12°  217.03° / 212.79° 
R2  15.000  1 / 31  49.61° / 54.20°  130.53° / 123.48° 
R2  3.000  33 / 39  56.19° / 56.19°  119.47° / 119.47° 
R15  29.000  55 / 113  25.38° / 15.03°  251.01° / 238.09° 
R4  18.500  679 / 716  34.86° / 30.06°  24.93° / 32.55° 
R4  55.000  718 / 828  29.06° / 15.07°  34.19° / 59.90° 
R14  104.500  662 / 871  15.11° / 15.11°  90.01° / 35.32° 
R20  14.500  875 / 904  39.79° / 34.91°  228.41° / 223.90° 
R15  78.000  905 / 1061  38.33° / 15.10°  65.14° / 28.76° 
R10  311.500  1145 / 1768  15.22° / 15.08°  197.47° / 55.74° 
R23  4.000  2102 / 2110  64.83° / 64.83°  174.17° / 174.17° 
R15  55.500  2421 / 2532  15.21° / 40.51°  331.74° / 326.21° 
R18  88.000  2572 / 2748  15.03° / 31.30°  258.87° / 305.40° 
R14  260.500  2242 / 2763  15.04° / 15.01°  327.92° / 189.31° 
R18  5.500  2752 / 2763  32.08° / 32.85°  308.38° / 311.38° 
R15  47.000  2786 / 2880  37.88° / 15.71°  224.52° / 209.26° 
Total:  1103.500 (2207 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000068 ms (at 2016/04/04 18:01:00.00) 
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°:  33750  19990  13760  - 
% obs > 15°:   93.1 %  100.0 %  84.6 %  - 
Num possible obs > 15°:  36257  19995  16262  - 
Num complete obs > 15°:  31136  19988  11148  - 
% complete obs > 15°:   85.9 %  100.0 %  68.6 %  - 
Average # SV per Epoch:  11.7   6.9   4.8   - 
         
Obs L2 : Obs L1:  0.925   1.000   0.816   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  17  5  12  - 
% slips per complete obs:  0.055 %  0.025 %  0.108 %  - 
Num complete obs per slip:  183153   399760   92900   - 
IOD Slips > 15°:  2609  2  2607  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0000   0.0001   -  - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.162 m  0.163 m  0.159 m  - 
MP2 RMS:  0.203 m  0.199 m  0.208 m  - 
MP5 RMS:  -  -  -  - 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1 99.9 %
99.9 %
N/A N/A
L2 N/A 92.4 %
N/A N/A
L2P 92.4 %
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 15.07° 55.99° 854 854 (100.0 %)
0 (0.0 %) 0
G2 15.05° 61.17° 570 570 (100.0 %)
0 (0.0 %) 0
G3 15.03° 77.30° 749 749 (100.0 %)
0 (0.0 %) 0
G6 15.09° 85.64° 655 655 (100.0 %)
0 (0.0 %) 0
G7 15.04° 56.18° 686 686 (100.0 %)
0 (0.0 %) 0
G8 15.01° 67.67° 808 808 (100.0 %)
0 (0.0 %) 0
G11 15.03° 62.87° 825 825 (100.0 %)
0 (0.0 %) 0
G12 15.08° 83.74° 682 682 (100.0 %)
0 (0.0 %) 0
G13 15.05° 55.90° 842 842 (100.0 %)
0 (0.0 %) 1
G14 15.03° 60.36° 559 559 (100.0 %)
0 (0.0 %) 0
G15 15.06° 76.16° 757 757 (100.0 %)
0 (0.0 %) 0
G16 15.08° 78.88° 725 725 (100.0 %)
0 (0.0 %) 0
G17 15.03° 61.93° 563 563 (100.0 %)
0 (0.0 %) 0
G18 15.01° 39.81° 810 810 (100.0 %)
0 (0.0 %) 0
G19 15.04° 51.16° 761 761 (100.0 %)
0 (0.0 %) 0
G20 15.00° 66.43° 593 593 (100.0 %)
0 (0.0 %) 0
G21 15.07° 61.83° 593 593 (100.0 %)
0 (0.0 %) 0
G22 15.03° 84.17° 683 683 (100.0 %)
0 (0.0 %) 2
G23 15.00° 71.93° 621 620 (99.8 %)
0 (0.0 %) 1
G24 15.05° 57.56° 844 844 (100.0 %)
0 (0.0 %) 0
G25 15.00° 66.36° 792 792 (100.0 %)
0 (0.0 %) 0
G26 15.07° 70.83° 778 778 (100.0 %)
0 (0.0 %) 1
G27 15.03° 56.68° 853 853 (100.0 %)
0 (0.0 %) 0
G28 15.02° 38.41° 820 820 (100.0 %)
0 (0.0 %) 0
G29 15.06° 80.73° 630 630 (100.0 %)
0 (0.0 %) 0
G30 15.05° 68.03° 593 593 (100.0 %)
0 (0.0 %) 0
G31 15.10° 84.40° 656 652 (99.4 %)
0 (0.0 %) 0
G32 15.06° 55.46° 693 693 (100.0 %)
0 (0.0 %) 0
R1 15.07° 56.92° 742 742 (100.0 %)
0 (0.0 %) 1
R2 15.04° 62.96° 931 886 (95.2 %)
0 (0.0 %) 0
R3 15.01° 87.21° 772 769 (99.6 %)
0 (0.0 %) 5
R4 15.23° 68.12° 637 488 (76.6 %)
0 (0.0 %) 0
R5 15.07° 48.02° 762 761 (99.9 %)
0 (0.0 %) 1
R6 15.01° 54.64° 727 727 (100.0 %)
0 (0.0 %) 0
R7 15.08° 75.56° 603 603 (100.0 %)
0 (0.0 %) 0
R8 15.01° 80.57° 532 532 (100.0 %)
0 (0.0 %) 1
R9 15.10° 86.20° 546 546 (100.0 %)
0 (0.0 %) 0
R10 - - 624 0 (0.0 %)
0 (0.0 %) 0
R11 15.04° 47.34° 761 761 (100.0 %)
0 (0.0 %) 0
R13 15.03° 75.63° 596 565 (94.8 %)
0 (0.0 %) 1
R14 - - 761 0 (0.0 %)
0 (0.0 %) 0
R15 15.17° 59.71° 932 483 (51.8 %)
0 (0.0 %) 0
R16 15.01° 62.42° 810 809 (99.9 %)
0 (0.0 %) 0
R17 15.14° 51.74° 1027 952 (92.7 %)
0 (0.0 %) 0
R18 15.04° 72.60° 921 723 (78.5 %)
0 (0.0 %) 0
R19 15.11° 82.80° 532 532 (100.0 %)
0 (0.0 %) 0
R20 15.01° 58.24° 636 605 (95.1 %)
0 (0.0 %) 3
R21 15.02° 39.17° 713 713 (100.0 %)
0 (0.0 %) 0
R22 15.03° 61.74° 593 593 (100.0 %)
0 (0.0 %) 0
R23 15.10° 64.83° 295 163 (55.3 %)
0 (0.0 %) 0
R24 15.01° 69.81° 809 807 (99.8 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 2.5 %
0.0 %
0.0 %
G2 1.7 %
0.0 %
0.0 %
G3 2.2 %
0.0 %
0.0 %
G6 1.9 %
0.0 %
0.0 %
G7 2.0 %
0.0 %
0.0 %
G8 2.4 %
0.0 %
0.0 %
G11 2.4 %
0.0 %
0.0 %
G12 2.0 %
0.0 %
0.0 %
G13 2.5 %
0.0 %
0.0 %
G14 1.7 %
0.0 %
0.0 %
G15 2.2 %
0.0 %
0.0 %
G16 2.1 %
0.0 %
0.0 %
G17 1.7 %
0.0 %
0.0 %
G18 2.4 %
0.0 %
0.0 %
G19 2.3 %
0.0 %
0.0 %
G20 1.8 %
0.0 %
0.0 %
G21 1.8 %
0.0 %
0.0 %
G22 2.0 %
0.0 %
0.1 %
G23 1.8 %
0.0 %
0.0 %
G24 2.5 %
0.0 %
0.0 %
G25 2.3 %
0.0 %
0.0 %
G26 2.3 %
0.0 %
0.0 %
G27 2.5 %
0.0 %
0.0 %
G28 2.4 %
0.0 %
0.0 %
G29 1.9 %
0.0 %
0.0 %
G30 1.8 %
0.0 %
0.0 %
G31 1.9 %
0.0 %
0.2 %
G32 2.1 %
0.0 %
0.0 %
R1 2.2 %
0.0 %
29.8 %
R2 2.6 %
0.0 %
1.7 %
R3 2.3 %
0.0 %
1.2 %
R4 1.4 %
0.0 %
0.0 %
R5 2.3 %
0.0 %
0.3 %
R6 2.2 %
0.0 %
19.5 %
R7 1.8 %
0.0 %
0.0 %
R8 1.6 %
0.0 %
0.0 %
R9 1.6 %
0.0 %
0.0 %
R11 2.3 %
0.0 %
100.0 %
R13 1.7 %
0.0 %
0.0 %
R15 1.4 %
0.0 %
0.0 %
R16 2.4 %
0.0 %
66.7 %
R17 2.8 %
0.0 %
0.0 %
R18 2.1 %
0.0 %
0.0 %
R19 1.6 %
0.0 %
0.0 %
R20 1.8 %
0.0 %
0.0 %
R21 2.1 %
0.0 %
0.0 %
R22 1.8 %
0.0 %
0.0 %
R23 0.5 %
25.8 %
44.8 %
R24 2.4 %
0.0 %
100.0 %

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 %
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 %
0.0 %
G19 0.0 %
0.0 %
G20 0.0 %
0.0 %
G21 0.0 %
0.0 %
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 %
G30 0.0 %
0.0 %
G31 0.0 %
0.2 %
G32 0.0 %
0.0 %
R1 0.0 %
29.8 %
R2 0.0 %
1.7 %
R3 0.0 %
1.2 %
R4 0.0 %
0.0 %
R5 0.0 %
0.3 %
R6 0.0 %
19.5 %
R7 0.0 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
0.0 %
R11 0.0 %
100.0 %
R13 0.0 %
0.0 %
R15 0.0 %
0.0 %
R16 0.0 %
66.7 %
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 25.8 %
44.8 %
R24 0.0 %
100.0 %

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Observations
85 - 90 0
0
0
0.2 %
80 - 85 0
0
0
1.2 %
75 - 80 0
0
0
1.9 %
70 - 75 0
0
0
2.6 %
65 - 70 0
0
0
4.0 %
60 - 65 0
0
0
5.4 %
55 - 60 0
0
0
7.9 %
50 - 55 0
0
0
8.7 %
45 - 50 0
0
0
9.1 %
40 - 45 1
0
0
8.3 %
35 - 40 0
0
0
9.9 %
30 - 35 0
0
0
9.8 %
25 - 30 0
0
0
9.4 %
20 - 25 0
5
0
9.5 %
15 - 20 4
7
0
12.0 %
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 8.2
6.1
- - -
G2 8.2
6.0
- - -
G3 8.2
6.4
- - -
G6 8.3
6.7
- - -
G7 8.0
5.6
- - -
G8 8.2
6.1
- - -
G11 8.3
5.6
- - -
G12 8.4
6.4
- - -
G13 8.3
5.3
- - -
G14 8.0
5.4
- - -
G15 8.4
6.5
- - -
G16 8.3
5.8
- - -
G17 8.3
6.2
- - -
G18 7.5
4.2
- - -
G19 7.6
5.6
- - -
G20 8.2
5.8
- - -
G21 8.2
5.6
- - -
G22 8.3
6.3
- - -
G23 8.5
5.6
- - -
G24 8.1
6.3
- - -
G25 8.1
6.0
- - -
G26 8.2
6.4
- - -
G27 8.3
6.5
- - -
G28 7.6
4.4
- - -
G29 8.4
6.5
- - -
G30 8.3
6.2
- - -
G31 8.5
6.6
- - -
G32 8.0
5.6
- - -
R1 7.0
2.8
- - -
R2 7.4
4.1
- - -
R3 7.4
4.3
- - -
R4 7.8
4.6
- - -
R5 6.1
3.7
- - -
R6 7.0
2.8
- - -
R7 7.7
4.6
- - -
R8 7.7
4.5
- - -
R9 7.5
4.6
- - -
R11 7.2
- - - -
R13 6.2
3.7
- - -
R15 7.1
4.1
- - -
R16 5.9
1.7
- - -
R17 7.7
4.4
- - -
R18 7.7
4.5
- - -
R19 7.7
4.5
- - -
R20 5.7
4.3
- - -
R21 7.5
4.1
- - -
R22 7.4
4.3
- - -
R23 7.3
3.0
- - -
R24 6.0
- - - -
Average GPS: 8.2
5.9
- - -
Average GLONASS: 7.1
3.9
- - -
Average Galileo: - - - - -
Average All: 7.7
5.1
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.5 ° 0.17 m
0.16 m
- - -
G2 38.1 ° 0.18 m
0.20 m
- - -
G3 46.2 ° 0.14 m
0.14 m
- - -
G6 50.4 ° 0.14 m
0.17 m
- - -
G7 35.6 ° 0.15 m
0.21 m
- - -
G8 41.3 ° 0.17 m
0.21 m
- - -
G11 38.9 ° 0.21 m
0.20 m
- - -
G12 49.4 ° 0.13 m
0.12 m
- - -
G13 35.5 ° 0.19 m
0.22 m
- - -
G14 37.7 ° 0.19 m
0.31 m
- - -
G15 45.6 ° 0.15 m
0.17 m
- - -
G16 47.0 ° 0.13 m
0.18 m
- - -
G17 38.5 ° 0.19 m
0.19 m
- - -
G18 27.4 ° 0.22 m
0.26 m
- - -
G19 33.1 ° 0.19 m
0.21 m
- - -
G20 40.7 ° 0.17 m
0.23 m
- - -
G21 38.5 ° 0.16 m
0.22 m
- - -
G22 49.6 ° 0.12 m
0.17 m
- - -
G23 43.5 ° 0.12 m
0.16 m
- - -
G24 36.3 ° 0.16 m
0.20 m
- - -
G25 40.7 ° 0.13 m
0.14 m
- - -
G26 43.0 ° 0.15 m
0.21 m
- - -
G27 35.9 ° 0.19 m
0.19 m
- - -
G28 26.7 ° 0.24 m
0.23 m
- - -
G29 47.9 ° 0.13 m
0.22 m
- - -
G30 41.5 ° 0.14 m
0.16 m
- - -
G31 49.7 ° 0.14 m
0.20 m
- - -
G32 35.3 ° 0.19 m
0.27 m
- - -
R1 36.0 ° 0.15 m
0.21 m
- - -
R2 39.0 ° 0.20 m
0.23 m
- - -
R3 51.1 ° 0.16 m
0.19 m
- - -
R4 41.7 ° 0.12 m
0.13 m
- - -
R5 31.5 ° 0.19 m
0.19 m
- - -
R6 34.8 ° 0.17 m
0.24 m
- - -
R7 45.3 ° 0.16 m
0.23 m
- - -
R8 47.8 ° 0.13 m
0.21 m
- - -
R9 50.6 ° 0.15 m
0.15 m
- - -
R11 - - - - - -
R13 45.3 ° 0.19 m
0.24 m
- - -
R15 37.4 ° 0.18 m
0.19 m
- - -
R16 38.7 ° 0.13 m
0.16 m
- - -
R17 33.4 ° 0.17 m
0.19 m
- - -
R18 43.8 ° 0.15 m
0.19 m
- - -
R19 49.0 ° 0.13 m
0.15 m
- - -
R20 36.6 ° 0.17 m
0.20 m
- - -
R21 27.1 ° 0.20 m
0.30 m
- - -
R22 38.4 ° 0.14 m
0.34 m
- - -
R23 40.0 ° 0.14 m
0.22 m
- - -
R24 - - - - - -
Average GPS: - 0.16 m
0.20 m
- - -
Average GLONASS: - 0.16 m
0.21 m
- - -
Average Galileo: - - - - - -
Average All: - 0.16 m
0.20 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.08 m
0.09 m
- - -
80 - 85 0.09 m
0.10 m
- - -
75 - 80 0.12 m
0.16 m
- - -
70 - 75 0.11 m
0.16 m
- - -
65 - 70 0.12 m
0.13 m
- - -
60 - 65 0.11 m
0.13 m
- - -
55 - 60 0.10 m
0.13 m
- - -
50 - 55 0.11 m
0.14 m
- - -
45 - 50 0.13 m
0.15 m
- - -
40 - 45 0.15 m
0.18 m
- - -
35 - 40 0.18 m
0.20 m
- - -
30 - 35 0.18 m
0.23 m
- - -
25 - 30 0.22 m
0.27 m
- - -
20 - 25 0.26 m
0.32 m
- - -
15 - 20 0.24 m
0.31 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 1.4 seconds to process this file 
-  This file was processed using version 4.4.0.1