Leica SpiderQC v4.2 Quality Report


Program Run: 2013/05/06 00:08:12.61

File Details:


Observation File: snmg1250.13o
GPS Navigation File: snmg1250.13n
GLONASS Navigation File: snmg1250.13g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  SNMG  31319M001   
Observer/Agency:       
Receiver #/Type/Vers:  355503  LEICA GRX1200GGPRO  7.80/3.019 
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:  5.5 m dX  -7.8 m dY  7.6 m dZ 
Diff. Est-Header:  12.2 m (2852 estimates) 

Session Summary:


Time of first obs:  2013/05/05 00:00:00.00 GPS 
Time of last obs:  2013/05/05 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1739, day 0 
Observation interval:  30.00 seconds 
UTC leap seconds:  16 seconds 

Num SVs with obs:  51 
Num SVs with nav:  53 
Total GPS orbits:  176 
Total GLONASS orbits:  332 
Total Galileo orbits:  0 
SVs with obs:  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 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:  G27 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 R11 R12 R13 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without nav:  R10 R14 R15  
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 13 slips, Threshold 43 slips 
Multipath:  Pass  Value 0.15m MP1 / 0.21m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.4 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 9 slips, Threshold 91 slips 
Multipath:  Pass  Value 0.16m MP1 / 0.28m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.4 %, Threshold 90.0 % 
Navigation Data:  Fail   

General Quality Indicators:


Tracking   
Num obs > 0°:  41067 
Num possible obs > 0°:  49395 
Num obs with invalid nav:  0 
Num obs without nav:  7 
Num obs to unhealthy SV:  0 
Num obs with WLF change:  0 
Num complete loss of lock:  0 

Num obs GPS > 0°:  24313 
Num obs GLONASS > 0°:  16754 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  41067 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  2782  (96.6 %) 
Epochs with full data > 15°:  2731  (94.8 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  8.5  3.6 
GDOP  3.1  10.9  4.4 

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 
R19  11.500  2180 / 2203  70.34° / 76.76°  166.81° / 161.14° 
G25  2.500  2255 / 2260  29.66° / 29.66°  60.76° / 60.76° 
G29  27.500  2244 / 2299  59.83° / 48.70°  37.59° / 35.50° 
G31  28.500  2244 / 2301  56.85° / 68.29°  332.83° / 334.32° 
Total:  70.000 (140 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000111 ms (at 2013/05/05 19:04:00.00) 
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°:  36797  21639  15158  - 
% obs > 15°:   99.6 %  99.4 %  99.8 %  - 
Num possible obs > 15°:  36962  21768  15194  - 
Num complete obs > 15°:  36746  21637  15109  - 
% complete obs > 15°:   99.4 %  99.4 %  99.4 %  - 
Average # SV per Epoch:  12.8   7.5   5.3   - 
         
Obs L2 : Obs L1:  0.999   1.000   0.997   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  22  13  9  - 
% slips per complete obs:  0.060 %  0.060 %  0.060 %  - 
Num complete obs per slip:  167027   166438   167878   - 
IOD Slips > 15°:  51  2  49  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0002   0.0001   0.0003   - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.153 m  0.149 m  0.160 m  - 
MP2 RMS:  0.240 m  0.215 m  0.276 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 99.9 %
N/A N/A
L2P 99.9 %
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 15.01° 55.69° 862 862 (100.0 %)
0 (0.0 %) 0
G2 15.02° 67.51° 592 592 (100.0 %)
0 (0.0 %) 0
G3 15.04° 60.30° 829 829 (100.0 %)
0 (0.0 %) 0
G4 15.02° 86.61° 666 666 (100.0 %)
0 (0.0 %) 1
G5 15.07° 81.71° 720 720 (100.0 %)
0 (0.0 %) 0
G6 15.03° 56.81° 866 866 (100.0 %)
0 (0.0 %) 0
G7 15.02° 52.76° 749 749 (100.0 %)
0 (0.0 %) 0
G8 15.02° 63.47° 570 570 (100.0 %)
0 (0.0 %) 0
G9 15.01° 87.49° 657 657 (100.0 %)
0 (0.0 %) 0
G10 15.06° 59.92° 830 830 (100.0 %)
0 (0.0 %) 1
G11 15.07° 60.22° 844 844 (100.0 %)
0 (0.0 %) 0
G12 15.03° 85.30° 681 681 (100.0 %)
0 (0.0 %) 0
G13 15.02° 77.59° 616 616 (100.0 %)
0 (0.0 %) 2
G14 15.15° 64.80° 573 573 (100.0 %)
0 (0.0 %) 0
G15 15.05° 69.43° 795 795 (100.0 %)
0 (0.0 %) 0
G16 15.09° 76.04° 746 746 (100.0 %)
0 (0.0 %) 0
G17 15.03° 62.51° 567 567 (100.0 %)
0 (0.0 %) 0
G18 15.00° 42.27° 799 799 (100.0 %)
0 (0.0 %) 1
G19 15.11° 59.07° 846 846 (100.0 %)
0 (0.0 %) 1
G20 15.01° 77.82° 742 742 (100.0 %)
0 (0.0 %) 0
G21 15.04° 57.46° 576 576 (100.0 %)
0 (0.0 %) 0
G22 15.00° 40.48° 819 819 (100.0 %)
0 (0.0 %) 0
G23 15.02° 67.68° 598 596 (99.7 %)
0 (0.0 %) 4
G24 15.02° 57.80° 847 847 (100.0 %)
0 (0.0 %) 0
G25 15.01° 68.82° 783 773 (98.7 %)
0 (0.0 %) 1
G26 15.08° 53.86° 828 828 (100.0 %)
0 (0.0 %) 1
G28 15.01° 36.71° 821 821 (100.0 %)
0 (0.0 %) 0
G29 15.10° 78.75° 628 572 (91.1 %)
0 (0.0 %) 0
G31 15.07° 86.93° 663 602 (90.8 %)
0 (0.0 %) 1
G32 15.00° 83.31° 655 655 (100.0 %)
0 (0.0 %) 0
R1 15.05° 49.73° 756 756 (100.0 %)
0 (0.0 %) 0
R2 15.05° 51.29° 749 749 (100.0 %)
0 (0.0 %) 0
R3 15.09° 71.45° 618 618 (100.0 %)
0 (0.0 %) 0
R4 15.01° 83.79° 539 536 (99.4 %)
0 (0.0 %) 0
R5 15.02° 59.28° 755 755 (100.0 %)
3 (0.4 %) 0
R6 15.02° 59.84° 932 932 (100.0 %)
0 (0.0 %) 2
R7 15.01° 83.72° 778 778 (100.0 %)
0 (0.0 %) 2
R8 15.11° 71.91° 616 616 (100.0 %)
0 (0.0 %) 0
R9 15.03° 70.22° 619 619 (100.0 %)
0 (0.0 %) 0
R11 15.00° 61.27° 930 927 (99.7 %)
0 (0.0 %) 2
R12 15.01° 58.94° 804 802 (99.8 %)
0 (0.0 %) 0
R13 15.09° 84.38° 534 534 (100.0 %)
4 (0.7 %) 0
R16 15.00° 48.89° 755 755 (100.0 %)
0 (0.0 %) 0
R17 15.02° 38.16° 711 711 (100.0 %)
0 (0.0 %) 1
R18 15.08° 57.95° 621 620 (99.8 %)
0 (0.0 %) 0
R19 15.09° 85.61° 541 515 (95.2 %)
0 (0.0 %) 1
R20 15.02° 69.99° 883 883 (100.0 %)
0 (0.0 %) 0
R21 15.03° 50.27° 1035 1035 (100.0 %)
0 (0.0 %) 0
R22 15.02° 69.76° 903 903 (100.0 %)
0 (0.0 %) 0
R23 15.14° 85.06° 540 540 (100.0 %)
0 (0.0 %) 1
R24 15.04° 61.40° 575 574 (99.8 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 2.3 %
0.0 %
0.0 %
G2 1.6 %
0.0 %
0.0 %
G3 2.3 %
0.0 %
0.0 %
G4 1.8 %
0.0 %
0.0 %
G5 2.0 %
0.0 %
0.0 %
G6 2.4 %
0.0 %
0.0 %
G7 2.0 %
0.0 %
0.0 %
G8 1.5 %
0.0 %
0.0 %
G9 1.8 %
0.0 %
0.0 %
G10 2.3 %
0.0 %
0.0 %
G11 2.3 %
0.0 %
0.0 %
G12 1.9 %
0.0 %
0.0 %
G13 1.7 %
0.0 %
0.2 %
G14 1.6 %
0.0 %
0.0 %
G15 2.2 %
0.0 %
0.0 %
G16 2.0 %
0.0 %
0.0 %
G17 1.5 %
0.0 %
0.0 %
G18 2.2 %
0.0 %
0.0 %
G19 2.3 %
0.0 %
0.0 %
G20 2.0 %
0.0 %
0.0 %
G21 1.6 %
0.0 %
0.0 %
G22 2.2 %
0.0 %
0.0 %
G23 1.6 %
0.0 %
0.2 %
G24 2.3 %
0.0 %
0.0 %
G25 2.1 %
0.0 %
0.0 %
G26 2.3 %
0.0 %
0.0 %
G28 2.2 %
0.0 %
0.0 %
G29 1.6 %
0.0 %
0.0 %
G31 1.6 %
0.0 %
0.0 %
G32 1.8 %
0.0 %
0.0 %
R1 2.1 %
0.0 %
0.0 %
R2 2.0 %
0.0 %
0.0 %
R3 1.7 %
0.0 %
0.0 %
R4 1.5 %
0.0 %
0.0 %
R5 2.1 %
0.0 %
0.0 %
R6 2.5 %
0.0 %
0.0 %
R7 2.1 %
0.0 %
0.4 %
R8 1.7 %
0.0 %
0.0 %
R9 1.7 %
0.0 %
0.0 %
R11 2.5 %
0.0 %
2.9 %
R12 2.2 %
0.0 %
1.1 %
R13 1.5 %
0.0 %
0.0 %
R16 2.1 %
0.0 %
0.0 %
R17 1.9 %
0.0 %
0.0 %
R18 1.7 %
0.0 %
0.0 %
R19 1.4 %
0.0 %
0.0 %
R20 2.4 %
0.0 %
0.0 %
R21 2.8 %
0.0 %
0.0 %
R22 2.5 %
0.0 %
0.0 %
R23 1.5 %
0.2 %
0.4 %
R24 1.6 %
0.0 %
1.2 %

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 %
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 %
0.2 %
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 %
0.2 %
G24 0.0 %
0.0 %
G25 0.0 %
0.0 %
G26 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 %
0.0 %
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 %
0.4 %
R8 0.0 %
0.0 %
R9 0.0 %
0.0 %
R11 0.0 %
2.9 %
R12 0.0 %
1.1 %
R13 0.0 %
0.0 %
R16 0.0 %
0.0 %
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 0.2 %
0.4 %
R24 0.0 %
1.2 %

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
1.4 %
75 - 80 0
0
0
1.9 %
70 - 75 0
0
0
2.1 %
65 - 70 0
0
0
3.9 %
60 - 65 0
0
0
4.5 %
55 - 60 0
0
0
8.5 %
50 - 55 0
0
0
8.3 %
45 - 50 0
0
0
9.1 %
40 - 45 0
0
0
8.3 %
35 - 40 0
2
0
10.2 %
30 - 35 0
3
0
10.1 %
25 - 30 0
0
0
9.8 %
20 - 25 11
0
0
9.8 %
15 - 20 2
4
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 8.2
6.8
- - -
G2 8.4
6.4
- - -
G3 8.4
6.1
- - -
G4 8.4
6.3
- - -
G5 8.4
6.9
- - -
G6 8.2
6.2
- - -
G7 7.8
5.8
- - -
G8 8.2
5.9
- - -
G9 8.4
6.5
- - -
G10 8.2
6.1
- - -
G11 8.4
6.0
- - -
G12 8.4
6.7
- - -
G13 8.4
6.0
- - -
G14 8.1
5.9
- - -
G15 8.4
6.8
- - -
G16 8.4
6.3
- - -
G17 8.4
6.8
- - -
G18 7.5
4.6
- - -
G19 8.3
6.7
- - -
G20 8.2
6.3
- - -
G21 7.6
5.5
- - -
G22 7.7
5.5
- - -
G23 8.5
6.0
- - -
G24 8.1
6.7
- - -
G25 8.2
6.3
- - -
G26 8.3
6.1
- - -
G28 7.7
4.8
- - -
G29 8.4
6.9
- - -
G31 8.5
6.8
- - -
G32 8.3
6.2
- - -
R1 7.3
3.6
- - -
R2 7.7
3.6
- - -
R3 7.4
5.4
- - -
R4 7.8
5.4
- - -
R5 7.4
5.0
- - -
R6 7.5
5.0
- - -
R7 7.6
5.2
- - -
R8 7.7
5.4
- - -
R9 7.8
5.4
- - -
R11 6.9
3.4
- - -
R12 7.6
4.1
- - -
R13 7.5
5.2
- - -
R16 7.3
4.8
- - -
R17 7.4
4.8
- - -
R18 7.3
5.0
- - -
R19 7.8
5.3
- - -
R20 6.0
5.2
- - -
R21 7.5
3.8
- - -
R22 7.7
5.4
- - -
R23 7.8
5.5
- - -
R24 7.6
4.5
- - -
Average GPS: 8.2
6.2
- - -
Average GLONASS: 7.5
4.8
- - -
Average Galileo: - - - - -
Average All: 7.9
5.6
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 35.3 ° 0.14 m
0.19 m
- - -
G2 41.3 ° 0.13 m
0.21 m
- - -
G3 37.7 ° 0.15 m
0.23 m
- - -
G4 50.8 ° 0.13 m
0.16 m
- - -
G5 48.4 ° 0.13 m
0.16 m
- - -
G6 35.9 ° 0.14 m
0.24 m
- - -
G7 33.9 ° 0.19 m
0.26 m
- - -
G8 39.2 ° 0.17 m
0.20 m
- - -
G9 51.3 ° 0.15 m
0.22 m
- - -
G10 37.5 ° 0.13 m
0.18 m
- - -
G11 37.6 ° 0.12 m
0.18 m
- - -
G12 50.2 ° 0.13 m
0.18 m
- - -
G13 46.3 ° 0.15 m
0.17 m
- - -
G14 40.0 ° 0.14 m
0.29 m
- - -
G15 42.2 ° 0.16 m
0.27 m
- - -
G16 45.6 ° 0.13 m
0.25 m
- - -
G17 38.8 ° 0.13 m
0.21 m
- - -
G18 28.6 ° 0.20 m
0.28 m
- - -
G19 37.1 ° 0.13 m
0.20 m
- - -
G20 46.4 ° 0.15 m
0.20 m
- - -
G21 36.3 ° 0.22 m
0.25 m
- - -
G22 27.7 ° 0.21 m
0.31 m
- - -
G23 41.3 ° 0.16 m
0.20 m
- - -
G24 36.4 ° 0.12 m
0.17 m
- - -
G25 41.9 ° 0.13 m
0.20 m
- - -
G26 34.5 ° 0.14 m
0.20 m
- - -
G28 25.9 ° 0.19 m
0.22 m
- - -
G29 46.9 ° 0.14 m
0.21 m
- - -
G31 51.0 ° 0.11 m
0.17 m
- - -
G32 49.2 ° 0.14 m
0.23 m
- - -
R1 32.4 ° 0.16 m
0.25 m
- - -
R2 33.2 ° 0.17 m
0.29 m
- - -
R3 43.3 ° 0.17 m
0.28 m
- - -
R4 49.4 ° 0.16 m
0.34 m
- - -
R5 37.2 ° 0.17 m
0.34 m
- - -
R6 37.4 ° 0.16 m
0.27 m
- - -
R7 49.4 ° 0.16 m
0.26 m
- - -
R8 43.5 ° 0.17 m
0.21 m
- - -
R9 42.6 ° 0.13 m
0.31 m
- - -
R11 38.1 ° 0.18 m
0.27 m
- - -
R12 37.0 ° 0.15 m
0.23 m
- - -
R13 49.7 ° 0.13 m
0.19 m
- - -
R16 31.9 ° 0.17 m
0.40 m
- - -
R17 26.6 ° 0.16 m
0.27 m
- - -
R18 36.5 ° 0.15 m
0.31 m
- - -
R19 50.4 ° 0.15 m
0.20 m
- - -
R20 42.5 ° 0.22 m
0.26 m
- - -
R21 32.6 ° 0.17 m
0.28 m
- - -
R22 42.4 ° 0.15 m
0.32 m
- - -
R23 50.1 ° 0.12 m
0.22 m
- - -
R24 38.2 ° 0.15 m
0.31 m
- - -
Average GPS: - 0.15 m
0.21 m
- - -
Average GLONASS: - 0.16 m
0.28 m
- - -
Average Galileo: - - - - - -
Average All: - 0.15 m
0.24 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.07 m
0.10 m
- - -
80 - 85 0.07 m
0.08 m
- - -
75 - 80 0.08 m
0.10 m
- - -
70 - 75 0.09 m
0.12 m
- - -
65 - 70 0.11 m
0.12 m
- - -
60 - 65 0.10 m
0.13 m
- - -
55 - 60 0.09 m
0.15 m
- - -
50 - 55 0.11 m
0.17 m
- - -
45 - 50 0.12 m
0.19 m
- - -
40 - 45 0.14 m
0.23 m
- - -
35 - 40 0.15 m
0.25 m
- - -
30 - 35 0.16 m
0.28 m
- - -
25 - 30 0.20 m
0.30 m
- - -
20 - 25 0.23 m
0.36 m
- - -
15 - 20 0.26 m
0.41 m
- - -
10 - 15 - - - - -
5 - 10 - - - - -
0 - 5 - - - - -


Observation File Messages:





GPS Navigation File Messages:




GLONASS Navigation File Messages:




General Messages:


- Orbit missing or expired for SV R13 starting 2013/05/05 13:01:00.00.
- Orbit missing or expired for SV R5 starting 2013/05/05 23:31:30.00.

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 2.2 seconds to process this file 
-  This file was processed using version 4.2.0.10