Leica SpiderQC v4.2 Quality Report


Program Run: 2014/04/05 00:05:30.75

File Details:


Observation File: agui0940.14o
GPS Navigation File: agui0940.14n
GLONASS Navigation File: agui0940.14g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  AGUI  31322M001   
Observer/Agency:       
Receiver #/Type/Vers:  495473  LEICA GRX1200+GNSS  8.71/6.112 
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:  6.4 m dX  -9.4 m dY  9.3 m dZ 
Diff. Est-Header:  14.7 m (2880 estimates) 

Session Summary:


Time of first obs:  2014/04/04 00:00:00.00 GPS 
Time of last obs:  2014/04/04 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1786, day 5 
Observation interval:  30.00 seconds 
UTC leap seconds:  16 seconds 

Num SVs with obs:  54 
Num SVs with nav:  55 
Total GPS orbits:  181 
Total GLONASS orbits:  382 
Total Galileo orbits:  0 
SVs with obs:  G1 G2 G3 G4 G5 G7 G8 G9 G10 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 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without obs:  G6 G30 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 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:  G30  
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:  Fail  Value 56 slips, Threshold 43 slips 
Multipath:  Pass  Value 0.27m MP1 / 0.31m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.6 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 36 slips, Threshold 100 slips 
Multipath:  Pass  Value 0.26m MP1 / 0.35m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 98.6 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  43090 
Num possible obs > 0°:  51327 
Num obs with invalid nav:  0 
Num obs without nav:  0 
Num obs to unhealthy SV:  1 
Num obs with WLF change:  0 
Num complete loss of lock:  0 

Num obs GPS > 0°:  24300 
Num obs GLONASS > 0°:  18790 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  43090 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  2850  (99.0 %) 
Epochs with full data > 15°:  2624  (91.1 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  6.1  3.6 
GDOP  3.1  7.4  4.3 

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 
None   

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000118 ms (at 2014/04/04 15:13:00.00) 
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°:  38227  21566  16661  - 
% obs > 15°:   99.9 %  99.9 %  99.9 %  - 
Num possible obs > 15°:  38258  21585  16673  - 
Num complete obs > 15°:  37948  21504  16444  - 
% complete obs > 15°:   99.2 %  99.6 %  98.6 %  - 
Average # SV per Epoch:  13.3   7.5   5.8   - 
         
Obs L2 : Obs L1:  0.994   0.999   0.988   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  92  56  36  - 
% slips per complete obs:  0.242 %  0.260 %  0.219 %  - 
Num complete obs per slip:  41248   38400   45678   - 
IOD Slips > 15°:  270  53  217  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0003   0.0006   -  - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.266 m  0.273 m  0.257 m  - 
MP2 RMS:  0.327 m  0.311 m  0.349 m  - 
MP5 RMS:  -  -  -  - 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1 100.0 %
99.9 %
N/A N/A
L2 N/A 99.3 %
N/A N/A
L2P 99.6 %
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° 54.95° 856 855 (99.9 %)
0 (0.0 %) 2
G2 15.11° 63.73° 578 578 (100.0 %)
0 (0.0 %) 0
G3 15.03° 64.03° 809 809 (100.0 %)
0 (0.0 %) 1
G4 15.05° 87.20° 666 666 (100.0 %)
0 (0.0 %) 0
G5 15.09° 84.52° 706 706 (100.0 %)
0 (0.0 %) 0
G7 15.03° 53.76° 726 726 (100.0 %)
0 (0.0 %) 0
G8 15.04° 64.30° 575 575 (100.0 %)
0 (0.0 %) 0
G9 15.08° 74.56° 596 596 (100.0 %)
0 (0.0 %) 0
G10 15.07° 60.37° 827 827 (100.0 %)
0 (0.0 %) 1
G11 15.03° 60.10° 843 843 (100.0 %)
0 (0.0 %) 0
G12 15.09° 82.87° 689 689 (100.0 %)
0 (0.0 %) 0
G13 15.10° 80.05° 626 626 (100.0 %)
0 (0.0 %) 1
G14 15.05° 64.82° 576 576 (100.0 %)
0 (0.0 %) 2
G15 15.03° 70.08° 792 792 (100.0 %)
0 (0.0 %) 0
G16 15.09° 79.02° 727 727 (100.0 %)
0 (0.0 %) 0
G17 15.08° 60.94° 560 559 (99.8 %)
0 (0.0 %) 1
G18 15.05° 43.50° 798 796 (99.7 %)
0 (0.0 %) 10
G19 15.03° 60.83° 837 837 (100.0 %)
0 (0.0 %) 1
G20 15.06° 78.22° 739 739 (100.0 %)
0 (0.0 %) 4
G21 15.08° 57.02° 574 574 (100.0 %)
0 (0.0 %) 4
G22 15.01° 40.89° 817 817 (100.0 %)
0 (0.0 %) 6
G23 15.14° 66.66° 596 596 (100.0 %)
0 (0.0 %) 2
G24 15.07° 57.52° 848 848 (100.0 %)
0 (0.0 %) 0
G25 15.01° 64.98° 805 801 (99.5 %)
0 (0.0 %) 6
G26 15.01° 53.64° 830 830 (100.0 %)
0 (0.0 %) 1
G27 15.02° 54.91° 865 865 (100.0 %)
0 (0.0 %) 0
G28 15.00° 36.68° 821 821 (100.0 %)
0 (0.0 %) 0
G29 15.09° 79.68° 630 630 (100.0 %)
0 (0.0 %) 0
G31 15.05° 83.65° 651 644 (98.9 %)
0 (0.0 %) 9
G32 15.02° 77.32° 622 618 (99.4 %)
0 (0.0 %) 5
R1 15.05° 51.22° 749 749 (100.0 %)
0 (0.0 %) 0
R2 15.12° 72.80° 610 610 (100.0 %)
0 (0.0 %) 0
R3 15.03° 82.51° 609 609 (100.0 %)
0 (0.0 %) 0
R4 15.01° 57.84° 866 866 (100.0 %)
0 (0.0 %) 6
R5 15.08° 60.78° 874 873 (99.9 %)
0 (0.0 %) 2
R6 15.03° 86.05° 618 615 (99.5 %)
0 (0.0 %) 1
R7 15.08° 70.20° 624 624 (100.0 %)
0 (0.0 %) 0
R8 15.02° 48.79° 763 763 (100.0 %)
0 (0.0 %) 0
R9 15.01° 83.45° 837 832 (99.4 %)
0 (0.0 %) 5
R10 15.03° 60.21° 930 930 (100.0 %)
0 (0.0 %) 0
R11 15.00° 60.51° 636 635 (99.8 %)
0 (0.0 %) 2
R12 15.09° 85.06° 540 539 (99.8 %)
0 (0.0 %) 4
R13 15.10° 69.25° 618 618 (100.0 %)
0 (0.0 %) 0
R14 15.01° 47.69° 760 760 (100.0 %)
0 (0.0 %) 0
R15 15.02° 49.23° 753 752 (99.9 %)
0 (0.0 %) 5
R16 15.01° 72.69° 697 697 (100.0 %)
0 (0.0 %) 8
R17 15.05° 59.76° 599 599 (100.0 %)
0 (0.0 %) 0
R19 15.12° 68.45° 988 988 (100.0 %)
0 (0.0 %) 0
R20 15.06° 51.11° 1036 1036 (100.0 %)
0 (0.0 %) 0
R21 15.06° 72.00° 708 708 (100.0 %)
0 (0.0 %) 0
R22 15.03° 84.59° 541 541 (100.0 %)
0 (0.0 %) 0
R23 15.03° 59.23° 606 606 (100.0 %)
0 (0.0 %) 1
R24 15.02° 37.78° 711 711 (100.0 %)
0 (0.0 %) 2

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 2.1 %
0.0 %
0.0 %
G4 1.7 %
0.0 %
0.0 %
G5 1.8 %
0.0 %
0.0 %
G7 1.9 %
0.0 %
0.0 %
G8 1.5 %
0.0 %
0.0 %
G9 1.6 %
0.0 %
0.0 %
G10 2.2 %
0.0 %
0.0 %
G11 2.2 %
0.0 %
0.0 %
G12 1.8 %
0.0 %
0.0 %
G13 1.6 %
0.0 %
0.2 %
G14 1.5 %
0.0 %
0.0 %
G15 2.1 %
0.0 %
0.0 %
G16 1.9 %
0.0 %
0.1 %
G17 1.5 %
0.0 %
0.0 %
G18 2.1 %
0.3 %
0.4 %
G19 2.2 %
0.0 %
0.0 %
G20 1.9 %
0.1 %
0.1 %
G21 1.5 %
0.0 %
0.3 %
G22 2.1 %
0.6 %
1.6 %
G23 1.6 %
0.2 %
0.2 %
G24 2.2 %
0.0 %
0.0 %
G25 2.1 %
0.9 %
1.1 %
G26 2.2 %
0.0 %
0.0 %
G27 2.3 %
0.0 %
0.0 %
G28 2.1 %
0.0 %
0.0 %
G29 1.6 %
0.0 %
0.0 %
G31 1.7 %
2.2 %
3.4 %
G32 1.6 %
0.0 %
1.5 %
R1 2.0 %
0.0 %
0.0 %
R2 1.6 %
0.0 %
0.0 %
R3 1.6 %
0.0 %
0.0 %
R4 2.3 %
0.0 %
0.2 %
R5 2.3 %
0.3 %
6.3 %
R6 1.6 %
0.5 %
2.1 %
R7 1.6 %
0.0 %
0.0 %
R8 2.0 %
0.0 %
0.0 %
R9 2.2 %
0.6 %
6.1 %
R10 2.4 %
0.0 %
0.0 %
R11 1.7 %
0.0 %
0.0 %
R12 1.4 %
0.0 %
0.0 %
R13 1.6 %
0.0 %
0.0 %
R14 2.0 %
0.0 %
0.0 %
R15 2.0 %
0.3 %
3.3 %
R16 1.8 %
0.9 %
10.0 %
R17 1.6 %
0.0 %
0.0 %
R19 2.6 %
0.0 %
0.0 %
R20 2.7 %
0.0 %
0.0 %
R21 1.9 %
0.0 %
0.0 %
R22 1.4 %
0.0 %
0.0 %
R23 1.6 %
0.0 %
0.0 %
R24 1.9 %
0.0 %
0.1 %

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 %
G4 0.0 %
0.0 %
G5 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 %
0.2 %
G14 0.0 %
0.0 %
G15 0.0 %
0.0 %
G16 0.0 %
0.1 %
G17 0.0 %
0.0 %
G18 0.0 %
0.1 %
G19 0.0 %
0.0 %
G20 0.0 %
0.0 %
G21 0.0 %
0.3 %
G22 0.0 %
1.0 %
G23 0.0 %
0.0 %
G24 0.0 %
0.0 %
G25 0.0 %
0.2 %
G26 0.0 %
0.0 %
G27 0.0 %
0.0 %
G28 0.0 %
0.0 %
G29 0.0 %
0.0 %
G31 0.0 %
2.2 %
G32 0.0 %
1.5 %
R1 0.0 %
0.0 %
R2 0.0 %
0.0 %
R3 0.0 %
0.0 %
R4 0.0 %
0.0 %
R5 0.0 %
2.7 %
R6 0.0 %
0.8 %
R7 0.0 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
2.6 %
R10 0.0 %
0.0 %
R11 0.0 %
0.0 %
R12 0.0 %
0.0 %
R13 0.0 %
0.0 %
R14 0.0 %
0.0 %
R15 0.0 %
1.6 %
R16 0.0 %
4.7 %
R17 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 %
0.0 %

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Observations
85 - 90 0
0
0
0.1 %
80 - 85 1
0
0
1.2 %
75 - 80 2
0
0
2.0 %
70 - 75 1
0
0
2.4 %
65 - 70 0
1
0
3.3 %
60 - 65 0
0
0
5.3 %
55 - 60 4
1
0
7.3 %
50 - 55 0
2
0
8.9 %
45 - 50 0
0
0
9.2 %
40 - 45 1
4
0
8.6 %
35 - 40 2
1
0
10.1 %
30 - 35 2
6
0
10.1 %
25 - 30 6
6
0
9.6 %
20 - 25 19
6
0
10.0 %
15 - 20 18
9
0
11.9 %
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 8.4
7.2
- - -
G2 8.5
7.1
- - -
G3 8.5
6.8
- - -
G4 8.5
6.8
- - -
G5 8.6
7.6
- - -
G7 8.2
6.6
- - -
G8 8.4
6.6
- - -
G9 8.6
7.0
- - -
G10 8.4
6.7
- - -
G11 8.5
6.6
- - -
G12 8.6
7.4
- - -
G13 8.5
6.6
- - -
G14 8.3
6.5
- - -
G15 8.5
7.4
- - -
G16 8.5
6.8
- - -
G17 8.5
7.2
- - -
G18 7.9
5.3
- - -
G19 8.5
7.3
- - -
G20 8.4
6.8
- - -
G21 7.9
6.0
- - -
G22 7.9
6.2
- - -
G23 8.6
6.7
- - -
G24 8.3
7.3
- - -
G25 8.3
7.0
- - -
G26 8.5
6.7
- - -
G27 8.5
7.4
- - -
G28 7.9
5.5
- - -
G29 8.6
7.5
- - -
G31 8.6
7.4
- - -
G32 8.4
6.8
- - -
R1 7.7
5.6
- - -
R2 8.2
7.6
- - -
R3 7.4
7.4
- - -
R4 7.7
7.1
- - -
R5 8.0
7.3
- - -
R6 8.2
7.6
- - -
R7 8.1
7.5
- - -
R8 7.9
7.3
- - -
R9 6.5
4.7
- - -
R10 7.9
5.8
- - -
R11 7.3
5.4
- - -
R12 7.0
6.8
- - -
R13 7.3
7.5
- - -
R14 6.4
5.5
- - -
R15 7.3
7.1
- - -
R16 7.5
7.3
- - -
R17 7.8
7.2
- - -
R19 8.1
7.4
- - -
R20 6.6
7.7
- - -
R21 7.4
5.6
- - -
R22 8.4
7.7
- - -
R23 7.9
7.2
- - -
R24 7.8
7.3
- - -
Average GPS: 8.4
6.8
- - -
Average GLONASS: 7.6
6.8
- - -
Average Galileo: - - - - -
Average All: 8.0
6.8
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.0 ° 0.27 m
0.30 m
- - -
G2 39.4 ° 0.29 m
0.32 m
- - -
G3 39.5 ° 0.28 m
0.29 m
- - -
G4 51.1 ° 0.26 m
0.34 m
- - -
G5 49.8 ° 0.23 m
0.33 m
- - -
G7 34.4 ° 0.29 m
0.38 m
- - -
G8 39.7 ° 0.23 m
0.38 m
- - -
G9 44.8 ° 0.26 m
0.31 m
- - -
G10 37.7 ° 0.35 m
0.39 m
- - -
G11 37.6 ° 0.33 m
0.30 m
- - -
G12 49.0 ° 0.21 m
0.26 m
- - -
G13 47.6 ° 0.22 m
0.25 m
- - -
G14 39.9 ° 0.28 m
0.28 m
- - -
G15 42.6 ° 0.23 m
0.31 m
- - -
G16 47.1 ° 0.24 m
0.31 m
- - -
G17 38.0 ° 0.31 m
0.30 m
- - -
G18 29.3 ° 0.32 m
0.39 m
- - -
G19 37.9 ° 0.32 m
0.35 m
- - -
G20 46.6 ° 0.25 m
0.28 m
- - -
G21 36.1 ° 0.29 m
0.26 m
- - -
G22 27.9 ° 0.36 m
0.42 m
- - -
G23 40.9 ° 0.27 m
0.28 m
- - -
G24 36.3 ° 0.22 m
0.25 m
- - -
G25 40.0 ° 0.27 m
0.29 m
- - -
G26 34.3 ° 0.25 m
0.32 m
- - -
G27 35.0 ° 0.27 m
0.26 m
- - -
G28 25.8 ° 0.37 m
0.37 m
- - -
G29 47.4 ° 0.24 m
0.26 m
- - -
G31 49.3 ° 0.25 m
0.23 m
- - -
G32 46.2 ° 0.21 m
0.31 m
- - -
R1 33.1 ° 0.30 m
0.42 m
- - -
R2 44.0 ° 0.21 m
0.31 m
- - -
R3 48.8 ° 0.25 m
0.34 m
- - -
R4 36.4 ° 0.32 m
0.36 m
- - -
R5 37.9 ° 0.27 m
0.32 m
- - -
R6 50.5 ° 0.17 m
0.35 m
- - -
R7 42.6 ° 0.23 m
0.31 m
- - -
R8 31.9 ° 0.33 m
0.32 m
- - -
R9 49.2 ° 0.24 m
0.42 m
- - -
R10 37.6 ° 0.30 m
0.37 m
- - -
R11 37.8 ° 0.26 m
0.38 m
- - -
R12 50.1 ° 0.18 m
0.24 m
- - -
R13 42.2 ° 0.20 m
0.30 m
- - -
R14 31.4 ° 0.26 m
0.33 m
- - -
R15 32.1 ° 0.25 m
0.38 m
- - -
R16 43.9 ° 0.25 m
0.36 m
- - -
R17 37.4 ° 0.32 m
0.38 m
- - -
R19 41.8 ° 0.26 m
0.31 m
- - -
R20 33.1 ° 0.28 m
0.37 m
- - -
R21 43.5 ° 0.23 m
0.33 m
- - -
R22 49.8 ° 0.20 m
0.40 m
- - -
R23 37.1 ° 0.26 m
0.38 m
- - -
R24 26.4 ° 0.33 m
0.36 m
- - -
Average GPS: - 0.27 m
0.31 m
- - -
Average GLONASS: - 0.26 m
0.35 m
- - -
Average Galileo: - - - - - -
Average All: - 0.27 m
0.33 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.16 m
0.22 m
- - -
80 - 85 0.12 m
0.24 m
- - -
75 - 80 0.15 m
0.23 m
- - -
70 - 75 0.16 m
0.22 m
- - -
65 - 70 0.16 m
0.22 m
- - -
60 - 65 0.20 m
0.24 m
- - -
55 - 60 0.20 m
0.26 m
- - -
50 - 55 0.21 m
0.25 m
- - -
45 - 50 0.22 m
0.28 m
- - -
40 - 45 0.26 m
0.30 m
- - -
35 - 40 0.26 m
0.33 m
- - -
30 - 35 0.33 m
0.34 m
- - -
25 - 30 0.33 m
0.39 m
- - -
20 - 25 0.36 m
0.44 m
- - -
15 - 20 0.38 m
0.49 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 1.3 seconds to process this file 
-  This file was processed using version 4.2.0.10