Leica SpiderQC v4.2 Quality Report


Program Run: 2014/04/05 00:14:51.07

File Details:


Observation File: morj0940.14o
GPS Navigation File: morj0940.14n
GLONASS Navigation File: morj0940.14g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  MORJ  MORJ   
Observer/Agency:       
Receiver #/Type/Vers:  495462  LEICA GRX1200+GNSS  8.71/6.112 
Antenna #/Type:    LEIAX1203+GNSS NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5457088.583  -1397044.592  2981594.352 
Approx Position (plh):  28° 03' 6.28274" N  14° 21' 34.67271" W  57.667m 
Diff. Est-Header:  6.3 m dX  -9.2 m dY  9.1 m dZ 
Diff. Est-Header:  14.3 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:  53 
Num SVs with nav:  54 
Total GPS orbits:  180 
Total GLONASS orbits:  379 
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 R19 R20 R21 R22 R23 R24  
SVs without obs:  G6 G30 R18 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 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:  G6 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 52 slips, Threshold 43 slips 
Multipath:  Pass  Value 0.33m MP1 / 0.42m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.7 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 30 slips, Threshold 100 slips 
Multipath:  Fail  Value 0.34m MP1 / 0.51m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 98.3 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  42644 
Num possible obs > 0°:  50927 
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°:  24122 
Num obs GLONASS > 0°:  18522 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  42644 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  2862  (99.4 %) 
Epochs with full data > 15°:  2577  (89.5 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  6.5  3.6 
GDOP  3.1  8.0  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:  0.000116 ms (at 2014/04/04 14:55:00.00) 
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°:  38150  21550  16600  - 
% obs > 15°:   100.0 %  100.0 %  99.9 %  - 
Num possible obs > 15°:  38168  21557  16611  - 
Num complete obs > 15°:  37817  21491  16326  - 
% complete obs > 15°:   99.1 %  99.7 %  98.3 %  - 
Average # SV per Epoch:  13.2   7.5   5.8   - 
         
Obs L2 : Obs L1:  0.993   0.998   0.985   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  82  52  30  - 
% slips per complete obs:  0.217 %  0.242 %  0.184 %  - 
Num complete obs per slip:  46118   41329   54420   - 
IOD Slips > 15°:  321  49  272  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0003   0.0005   -  - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.335 m  0.333 m  0.338 m  - 
MP2 RMS:  0.459 m  0.417 m  0.514 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 99.1 %
N/A N/A
L2P 99.5 %
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 15.08° 55.07° 854 854 (100.0 %)
0 (0.0 %) 2
G2 15.05° 62.49° 573 573 (100.0 %)
0 (0.0 %) 0
G3 15.05° 65.07° 803 803 (100.0 %)
0 (0.0 %) 0
G4 15.07° 85.93° 661 661 (100.0 %)
0 (0.0 %) 0
G5 15.03° 85.77° 700 700 (100.0 %)
0 (0.0 %) 0
G7 15.00° 54.96° 711 711 (100.0 %)
0 (0.0 %) 0
G8 15.01° 65.53° 580 580 (100.0 %)
0 (0.0 %) 0
G9 15.03° 75.78° 600 600 (100.0 %)
0 (0.0 %) 0
G10 15.03° 61.30° 823 823 (100.0 %)
0 (0.0 %) 0
G11 15.02° 60.54° 841 841 (100.0 %)
0 (0.0 %) 0
G12 15.09° 81.73° 695 695 (100.0 %)
0 (0.0 %) 0
G13 15.02° 81.26° 631 631 (100.0 %)
0 (0.0 %) 0
G14 15.04° 63.59° 571 571 (100.0 %)
0 (0.0 %) 1
G15 15.08° 71.23° 785 785 (100.0 %)
0 (0.0 %) 1
G16 15.04° 80.27° 721 721 (100.0 %)
0 (0.0 %) 10
G17 15.07° 59.72° 555 555 (100.0 %)
0 (0.0 %) 0
G18 15.03° 42.37° 806 805 (99.9 %)
0 (0.0 %) 7
G19 15.03° 61.86° 832 832 (100.0 %)
0 (0.0 %) 0
G20 15.07° 77.19° 745 745 (100.0 %)
0 (0.0 %) 4
G21 15.04° 58.22° 580 580 (100.0 %)
0 (0.0 %) 2
G22 15.03° 42.05° 811 809 (99.8 %)
0 (0.0 %) 0
G23 15.07° 67.87° 601 601 (100.0 %)
0 (0.0 %) 1
G24 15.01° 57.06° 850 850 (100.0 %)
0 (0.0 %) 1
G25 15.06° 64.09° 809 809 (100.0 %)
0 (0.0 %) 1
G26 15.10° 53.86° 828 828 (100.0 %)
0 (0.0 %) 1
G27 15.03° 55.36° 863 863 (100.0 %)
0 (0.0 %) 0
G28 15.01° 35.62° 822 822 (100.0 %)
0 (0.0 %) 0
G29 15.06° 80.89° 635 635 (100.0 %)
0 (0.0 %) 0
G31 15.15° 82.38° 645 643 (99.7 %)
0 (0.0 %) 9
G32 15.09° 78.52° 626 624 (99.7 %)
0 (0.0 %) 12
R1 15.04° 52.32° 742 742 (100.0 %)
0 (0.0 %) 0
R2 15.07° 74.07° 605 605 (100.0 %)
0 (0.0 %) 0
R3 15.02° 81.23° 614 614 (100.0 %)
0 (0.0 %) 0
R4 15.01° 56.67° 875 875 (100.0 %)
0 (0.0 %) 3
R5 15.03° 62.03° 875 875 (100.0 %)
0 (0.0 %) 4
R6 15.00° 87.31° 562 560 (99.6 %)
0 (0.0 %) 1
R7 15.09° 69.04° 630 630 (100.0 %)
0 (0.0 %) 0
R8 15.05° 47.98° 766 766 (100.0 %)
0 (0.0 %) 0
R9 15.00° 82.17° 851 845 (99.3 %)
0 (0.0 %) 7
R10 15.08° 59.03° 930 930 (100.0 %)
0 (0.0 %) 1
R11 15.01° 61.75° 620 620 (100.0 %)
0 (0.0 %) 0
R12 15.04° 86.32° 544 544 (100.0 %)
0 (0.0 %) 4
R13 15.01° 68.08° 625 625 (100.0 %)
0 (0.0 %) 0
R14 15.08° 46.84° 763 763 (100.0 %)
0 (0.0 %) 0
R15 15.00° 50.34° 746 746 (100.0 %)
0 (0.0 %) 2
R16 15.04° 73.97° 691 688 (99.6 %)
0 (0.0 %) 7
R17 15.06° 61.00° 582 582 (100.0 %)
0 (0.0 %) 0
R19 15.09° 67.30° 993 993 (100.0 %)
0 (0.0 %) 0
R20 15.10° 52.23° 1034 1034 (100.0 %)
0 (0.0 %) 0
R21 15.05° 73.28° 694 694 (100.0 %)
0 (0.0 %) 0
R22 15.17° 83.31° 537 537 (100.0 %)
0 (0.0 %) 0
R23 15.05° 58.05° 621 621 (100.0 %)
0 (0.0 %) 0
R24 15.02° 37.85° 711 711 (100.0 %)
0 (0.0 %) 1

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 2.2 %
0.0 %
0.1 %
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 1.7 %
0.0 %
0.0 %
G14 1.5 %
0.0 %
0.2 %
G15 2.1 %
0.0 %
0.0 %
G16 1.9 %
0.0 %
0.0 %
G17 1.5 %
0.0 %
0.0 %
G18 2.1 %
0.2 %
0.9 %
G19 2.2 %
0.0 %
0.0 %
G20 2.0 %
0.0 %
0.3 %
G21 1.5 %
0.0 %
0.0 %
G22 2.1 %
0.7 %
1.1 %
G23 1.6 %
0.0 %
0.0 %
G24 2.2 %
0.0 %
0.0 %
G25 2.1 %
0.2 %
0.2 %
G26 2.2 %
0.1 %
0.1 %
G27 2.3 %
0.0 %
0.0 %
G28 2.2 %
0.0 %
0.0 %
G29 1.7 %
0.0 %
0.0 %
G31 1.7 %
0.9 %
2.8 %
G32 1.6 %
0.6 %
2.9 %
R1 1.9 %
0.0 %
0.0 %
R2 1.6 %
0.0 %
0.0 %
R3 1.6 %
0.0 %
0.0 %
R4 2.3 %
0.0 %
0.1 %
R5 2.3 %
0.2 %
4.2 %
R6 1.5 %
1.1 %
1.6 %
R7 1.7 %
0.0 %
0.0 %
R8 2.0 %
0.0 %
0.0 %
R9 2.2 %
0.8 %
7.0 %
R10 2.4 %
0.0 %
0.0 %
R11 1.6 %
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 %
5.8 %
R16 1.8 %
1.6 %
18.2 %
R17 1.5 %
0.0 %
0.0 %
R19 2.6 %
0.0 %
0.0 %
R20 2.7 %
0.0 %
0.0 %
R21 1.8 %
0.0 %
0.0 %
R22 1.4 %
0.0 %
0.0 %
R23 1.6 %
0.0 %
0.0 %
R24 1.9 %
0.0 %
0.0 %

Missing code observations by satellite > 15°: 
SV Missing C1 Missing C2P
G1 0.0 %
0.1 %
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 %
0.0 %
G14 0.0 %
0.2 %
G15 0.0 %
0.0 %
G16 0.0 %
0.0 %
G17 0.0 %
0.0 %
G18 0.0 %
0.6 %
G19 0.0 %
0.0 %
G20 0.0 %
0.3 %
G21 0.0 %
0.0 %
G22 0.0 %
0.7 %
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 %
2.6 %
G32 0.0 %
2.4 %
R1 0.0 %
0.0 %
R2 0.0 %
0.0 %
R3 0.0 %
0.0 %
R4 0.0 %
0.0 %
R5 0.0 %
2.6 %
R6 0.0 %
0.7 %
R7 0.0 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
4.0 %
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 %
2.1 %
R16 0.0 %
10.3 %
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
0.2 %
80 - 85 0
0
0
1.2 %
75 - 80 1
0
0
2.0 %
70 - 75 3
2
0
2.5 %
65 - 70 2
0
0
3.3 %
60 - 65 3
2
0
5.5 %
55 - 60 5
0
0
7.3 %
50 - 55 0
1
0
8.9 %
45 - 50 2
1
0
8.8 %
40 - 45 3
1
0
8.7 %
35 - 40 4
1
0
10.1 %
30 - 35 3
1
0
10.1 %
25 - 30 8
7
0
9.7 %
20 - 25 8
7
0
9.8 %
15 - 20 10
7
0
11.8 %
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
7.3
- - -
G2 8.5
7.2
- - -
G3 8.5
6.9
- - -
G4 8.5
6.9
- - -
G5 8.6
7.6
- - -
G7 8.3
6.7
- - -
G8 8.5
6.7
- - -
G9 8.6
7.1
- - -
G10 8.4
6.8
- - -
G11 8.5
6.6
- - -
G12 8.6
7.4
- - -
G13 8.6
6.7
- - -
G14 8.4
6.6
- - -
G15 8.6
7.4
- - -
G16 8.5
6.8
- - -
G17 8.5
7.3
- - -
G18 7.9
5.3
- - -
G19 8.5
7.4
- - -
G20 8.5
6.9
- - -
G21 8.0
6.2
- - -
G22 8.0
6.2
- - -
G23 8.6
6.8
- - -
G24 8.4
7.4
- - -
G25 8.4
7.0
- - -
G26 8.5
6.8
- - -
G27 8.5
7.5
- - -
G28 7.9
5.6
- - -
G29 8.6
7.6
- - -
G31 8.6
7.6
- - -
G32 8.4
6.8
- - -
R1 7.7
5.7
- - -
R2 8.4
7.6
- - -
R3 7.5
7.5
- - -
R4 7.8
7.2
- - -
R5 8.0
7.4
- - -
R6 8.4
7.6
- - -
R7 8.2
7.6
- - -
R8 8.0
7.3
- - -
R9 6.8
4.8
- - -
R10 8.0
5.8
- - -
R11 7.3
5.5
- - -
R12 7.0
6.9
- - -
R13 7.4
7.5
- - -
R14 6.6
5.7
- - -
R15 7.4
7.3
- - -
R16 7.6
7.4
- - -
R17 8.0
7.4
- - -
R19 8.2
7.5
- - -
R20 6.7
7.7
- - -
R21 7.5
5.8
- - -
R22 8.5
7.7
- - -
R23 8.0
7.4
- - -
R24 7.8
7.3
- - -
Average GPS: 8.4
6.9
- - -
Average GLONASS: 7.7
6.9
- - -
Average Galileo: - - - - -
Average All: 8.1
6.9
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.1 ° 0.33 m
0.42 m
- - -
G2 38.8 ° 0.27 m
0.46 m
- - -
G3 40.1 ° 0.30 m
0.40 m
- - -
G4 50.5 ° 0.29 m
0.40 m
- - -
G5 50.4 ° 0.30 m
0.46 m
- - -
G7 35.0 ° 0.35 m
0.49 m
- - -
G8 40.3 ° 0.36 m
0.43 m
- - -
G9 45.4 ° 0.34 m
0.45 m
- - -
G10 38.2 ° 0.34 m
0.38 m
- - -
G11 37.8 ° 0.35 m
0.41 m
- - -
G12 48.4 ° 0.29 m
0.38 m
- - -
G13 48.1 ° 0.29 m
0.34 m
- - -
G14 39.3 ° 0.28 m
0.36 m
- - -
G15 43.2 ° 0.33 m
0.36 m
- - -
G16 47.7 ° 0.27 m
0.39 m
- - -
G17 37.4 ° 0.30 m
0.35 m
- - -
G18 28.7 ° 0.40 m
0.47 m
- - -
G19 38.4 ° 0.35 m
0.41 m
- - -
G20 46.1 ° 0.29 m
0.41 m
- - -
G21 36.6 ° 0.41 m
0.42 m
- - -
G22 28.5 ° 0.46 m
0.59 m
- - -
G23 41.5 ° 0.41 m
0.44 m
- - -
G24 36.0 ° 0.35 m
0.42 m
- - -
G25 39.6 ° 0.25 m
0.38 m
- - -
G26 34.5 ° 0.36 m
0.43 m
- - -
G27 35.2 ° 0.40 m
0.39 m
- - -
G28 25.3 ° 0.46 m
0.53 m
- - -
G29 48.0 ° 0.28 m
0.35 m
- - -
G31 48.8 ° 0.30 m
0.36 m
- - -
G32 46.8 ° 0.29 m
0.39 m
- - -
R1 33.7 ° 0.36 m
0.62 m
- - -
R2 44.6 ° 0.37 m
0.51 m
- - -
R3 48.1 ° 0.34 m
0.48 m
- - -
R4 35.8 ° 0.37 m
0.51 m
- - -
R5 38.5 ° 0.38 m
0.56 m
- - -
R6 51.2 ° 0.27 m
0.49 m
- - -
R7 42.1 ° 0.31 m
0.46 m
- - -
R8 31.5 ° 0.38 m
0.51 m
- - -
R9 48.6 ° 0.29 m
0.48 m
- - -
R10 37.1 ° 0.36 m
0.52 m
- - -
R11 38.4 ° 0.35 m
0.57 m
- - -
R12 50.7 ° 0.28 m
0.40 m
- - -
R13 41.5 ° 0.28 m
0.47 m
- - -
R14 31.0 ° 0.32 m
0.48 m
- - -
R15 32.7 ° 0.30 m
0.53 m
- - -
R16 44.5 ° 0.36 m
0.58 m
- - -
R17 38.0 ° 0.35 m
0.54 m
- - -
R19 41.2 ° 0.36 m
0.48 m
- - -
R20 33.7 ° 0.36 m
0.53 m
- - -
R21 44.2 ° 0.40 m
0.52 m
- - -
R22 49.2 ° 0.28 m
0.49 m
- - -
R23 36.5 ° 0.29 m
0.53 m
- - -
R24 26.4 ° 0.42 m
0.56 m
- - -
Average GPS: - 0.33 m
0.42 m
- - -
Average GLONASS: - 0.34 m
0.51 m
- - -
Average Galileo: - - - - - -
Average All: - 0.34 m
0.46 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.11 m
0.22 m
- - -
80 - 85 0.15 m
0.25 m
- - -
75 - 80 0.17 m
0.25 m
- - -
70 - 75 0.20 m
0.29 m
- - -
65 - 70 0.22 m
0.30 m
- - -
60 - 65 0.22 m
0.31 m
- - -
55 - 60 0.23 m
0.34 m
- - -
50 - 55 0.28 m
0.36 m
- - -
45 - 50 0.31 m
0.40 m
- - -
40 - 45 0.35 m
0.46 m
- - -
35 - 40 0.33 m
0.50 m
- - -
30 - 35 0.37 m
0.52 m
- - -
25 - 30 0.42 m
0.57 m
- - -
20 - 25 0.46 m
0.64 m
- - -
15 - 20 0.48 m
0.59 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 1.6 seconds to process this file 
-  This file was processed using version 4.2.0.10