Leica SpiderQC v4.4 Quality Report


Program Run: 2014/11/12 01:12:16.10

File Details:


Observation File: tara3150.14o
GPS Navigation File: tara3150.14n
GLONASS Navigation File: tara3150.14g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  TARA  TARA   
Observer/Agency:       
Receiver #/Type/Vers:  495476  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):  5455788.946  -1371934.054  2995511.124 
Approx Position (plh):  28° 11' 38.83882" N  14° 06' 54.57082" W  59.962m 
Diff. Est-Header:  4.3 m dX  -7.3 m dY  8.7 m dZ 
Diff. Est-Header:  12.2 m (2880 estimates) 

Session Summary:


Time of first obs:  2014/11/11 00:00:00.00 GPS 
Time of last obs:  2014/11/11 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1818, day 2 
Observation interval:  30.00 seconds 
UTC leap seconds:  16 seconds 

Num SVs with obs:  54 
Num SVs with nav:  56 
Total GPS orbits:  178 
Total GLONASS orbits:  385 
Total Galileo orbits:  0 
SVs with obs:  G1 G2 G4 G5 G6 G7 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 obs:  G3 G8 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:  Fail  Value 52 slips, Threshold 44 slips 
Multipath:  Pass  Value 0.18m MP1 / 0.30m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.3 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 36 slips, Threshold 103 slips 
Multipath:  Pass  Value 0.20m MP1 / 0.38m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.3 %, Threshold 90.0 % 
Navigation Data:  Fail   

General Quality Indicators:


Tracking   
Num obs > 0°:  43555 
Num possible obs > 0°:  51646 
Num obs with invalid nav:  0 
Num obs without nav:  1 
Num obs to unhealthy SV:  0 
Num obs with WLF change:  0 
Num complete loss of lock:  0 

Num obs GPS > 0°:  24185 
Num obs GLONASS > 0°:  19370 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  43555 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  2832  (98.3 %) 
Epochs with full data > 15°:  2665  (92.5 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  5.9  3.5 
GDOP  3.1  7.3  4.2 

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:  0.000066 ms (at 2014/11/11 19:01:30.00) 
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°:  38941  21784  17157  - 
% obs > 15°:   99.9 %  99.8 %  99.9 %  - 
Num possible obs > 15°:  38989  21817  17172  - 
Num complete obs > 15°:  38714  21660  17054  - 
% complete obs > 15°:   99.3 %  99.3 %  99.3 %  - 
Average # SV per Epoch:  13.5   7.6   6.0   - 
         
Obs L2 : Obs L1:  0.996   0.997   0.995   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  88  52  36  - 
% slips per complete obs:  0.227 %  0.240 %  0.211 %  - 
Num complete obs per slip:  43993   41654   47372   - 
IOD Slips > 15°:  242  129  113  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  0.0004   0.0006   0.0002   - 
LLI L2 : Obs L2:  0.0013   0.0017   0.0009   - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.190 m  0.181 m  0.200 m  - 
MP2 RMS:  0.335 m  0.301 m  0.377 m  - 
MP5 RMS:  -  -  -  - 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1 100.0 %
99.8 %
N/A N/A
L2 N/A 99.4 %
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 15.08° 55.22° 852 852 (100.0 %)
0 (0.0 %) 0
G2 15.11° 63.81° 579 578 (99.8 %)
0 (0.0 %) 0
G4 15.02° 60.18° 826 826 (100.0 %)
0 (0.0 %) 0
G5 15.07° 84.38° 707 700 (99.0 %)
0 (0.0 %) 14
G6 15.14° 86.04° 656 656 (100.0 %)
0 (0.0 %) 0
G7 15.02° 52.71° 739 739 (100.0 %)
0 (0.0 %) 0
G9 15.09° 86.96° 662 662 (100.0 %)
0 (0.0 %) 0
G10 15.13° 61.36° 820 814 (99.3 %)
0 (0.0 %) 6
G11 15.04° 61.18° 828 828 (100.0 %)
0 (0.0 %) 0
G12 15.00° 85.01° 687 683 (99.4 %)
0 (0.0 %) 16
G13 15.08° 72.75° 755 755 (100.0 %)
0 (0.0 %) 0
G14 15.05° 62.21° 566 566 (100.0 %)
0 (0.0 %) 0
G15 15.06° 74.31° 776 776 (100.0 %)
0 (0.0 %) 0
G16 15.04° 78.45° 721 721 (100.0 %)
0 (0.0 %) 0
G17 15.03° 62.18° 565 565 (100.0 %)
0 (0.0 %) 0
G18 15.07° 40.30° 815 815 (100.0 %)
0 (0.0 %) 0
G19 15.05° 60.51° 827 827 (100.0 %)
0 (0.0 %) 0
G20 15.04° 73.57° 766 766 (100.0 %)
0 (0.0 %) 0
G21 15.05° 60.84° 591 591 (100.0 %)
0 (0.0 %) 0
G22 15.05° 44.66° 786 786 (100.0 %)
0 (0.0 %) 0
G23 15.01° 70.61° 614 614 (100.0 %)
0 (0.0 %) 0
G24 15.05° 56.22° 860 846 (98.4 %)
0 (0.0 %) 15
G25 15.00° 65.87° 806 806 (100.0 %)
0 (0.0 %) 0
G26 15.08° 54.31° 835 835 (100.0 %)
0 (0.0 %) 0
G27 15.10° 55.45° 852 851 (99.9 %)
0 (0.0 %) 1
G28 15.01° 36.17° 822 822 (100.0 %)
0 (0.0 %) 0
G29 15.05° 81.03° 634 634 (100.0 %)
0 (0.0 %) 0
G30 15.07° 65.59° 582 582 (100.0 %)
0 (0.0 %) 0
G31 15.02° 85.38° 659 659 (100.0 %)
0 (0.0 %) 0
G32 15.12° 79.74° 629 629 (100.0 %)
0 (0.0 %) 0
R1 15.02° 80.65° 855 855 (100.0 %)
0 (0.0 %) 1
R2 15.01° 42.74° 830 830 (100.0 %)
0 (0.0 %) 0
R3 15.00° 62.25° 545 545 (100.0 %)
0 (0.0 %) 0
R4 15.01° 87.22° 548 548 (100.0 %)
0 (0.0 %) 0
R5 15.07° 68.74° 633 633 (100.0 %)
0 (0.0 %) 0
R6 15.07° 47.11° 767 767 (100.0 %)
0 (0.0 %) 0
R7 15.10° 52.26° 774 773 (99.9 %)
0 (0.0 %) 9
R8 15.10° 74.30° 789 787 (99.7 %)
0 (0.0 %) 8
R9 15.01° 62.38° 565 565 (100.0 %)
0 (0.0 %) 3
R10 15.02° 86.53° 700 700 (100.0 %)
0 (0.0 %) 1
R11 15.03° 68.81° 983 983 (100.0 %)
0 (0.0 %) 5
R12 15.09° 51.35° 992 980 (98.8 %)
0 (0.0 %) 6
R13 15.01° 74.34° 598 598 (100.0 %)
1 (0.2 %) 0
R14 15.01° 81.69° 525 525 (100.0 %)
0 (0.0 %) 0
R15 15.01° 58.54° 633 633 (100.0 %)
0 (0.0 %) 0
R16 15.01° 40.60° 709 709 (100.0 %)
0 (0.0 %) 0
R17 15.06° 48.15° 762 762 (100.0 %)
0 (0.0 %) 0
R18 15.05° 50.62° 749 749 (100.0 %)
0 (0.0 %) 1
R19 15.10° 74.42° 600 600 (100.0 %)
0 (0.0 %) 1
R20 15.05° 81.13° 711 711 (100.0 %)
0 (0.0 %) 0
R21 15.01° 58.14° 824 824 (100.0 %)
0 (0.0 %) 0
R22 15.13° 60.74° 817 817 (100.0 %)
0 (0.0 %) 1
R23 15.01° 86.30° 645 645 (100.0 %)
0 (0.0 %) 0
R24 15.01° 70.43° 618 618 (100.0 %)
0 (0.0 %) 0

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 %
G4 2.1 %
0.0 %
0.0 %
G5 1.8 %
2.3 %
4.9 %
G6 1.7 %
0.0 %
0.0 %
G7 1.9 %
0.0 %
0.0 %
G9 1.7 %
0.0 %
0.0 %
G10 2.1 %
0.7 %
1.5 %
G11 2.1 %
0.0 %
0.0 %
G12 1.8 %
1.9 %
6.4 %
G13 1.9 %
0.0 %
0.0 %
G14 1.5 %
0.0 %
0.0 %
G15 2.0 %
0.0 %
0.0 %
G16 1.9 %
0.0 %
0.0 %
G17 1.5 %
0.0 %
0.0 %
G18 2.1 %
0.0 %
0.0 %
G19 2.1 %
0.0 %
0.0 %
G20 2.0 %
0.0 %
0.0 %
G21 1.5 %
0.0 %
0.0 %
G22 2.0 %
0.0 %
0.0 %
G23 1.6 %
0.0 %
0.0 %
G24 2.2 %
1.5 %
4.0 %
G25 2.1 %
0.0 %
0.0 %
G26 2.1 %
0.0 %
0.0 %
G27 2.2 %
0.0 %
0.0 %
G28 2.1 %
0.0 %
0.0 %
G29 1.6 %
0.0 %
0.0 %
G30 1.5 %
0.0 %
0.0 %
G31 1.7 %
0.0 %
0.0 %
G32 1.6 %
0.0 %
0.0 %
R1 2.2 %
0.0 %
0.0 %
R2 2.1 %
0.0 %
0.0 %
R3 1.4 %
0.0 %
0.0 %
R4 1.4 %
0.0 %
0.0 %
R5 1.6 %
0.0 %
0.0 %
R6 2.0 %
0.0 %
0.0 %
R7 2.0 %
0.4 %
3.8 %
R8 2.0 %
0.4 %
2.3 %
R9 1.5 %
0.0 %
0.5 %
R10 1.8 %
0.0 %
0.0 %
R11 2.5 %
0.0 %
0.3 %
R12 2.5 %
0.6 %
5.1 %
R13 1.5 %
0.0 %
0.0 %
R14 1.3 %
0.0 %
0.0 %
R15 1.6 %
0.0 %
0.0 %
R16 1.8 %
0.0 %
0.0 %
R17 2.0 %
0.0 %
0.0 %
R18 1.9 %
0.0 %
0.0 %
R19 1.5 %
0.0 %
0.0 %
R20 1.8 %
0.0 %
0.0 %
R21 2.1 %
0.0 %
0.0 %
R22 2.1 %
0.0 %
0.0 %
R23 1.7 %
0.0 %
0.0 %
R24 1.6 %
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 %
G4 0.0 %
0.0 %
G5 0.0 %
3.7 %
G6 0.0 %
0.0 %
G7 0.0 %
0.0 %
G9 0.0 %
0.0 %
G10 0.0 %
1.2 %
G11 0.0 %
0.0 %
G12 0.0 %
5.6 %
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 %
0.0 %
G23 0.0 %
0.0 %
G24 0.0 %
3.3 %
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 %
0.0 %
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 %
2.2 %
R8 0.0 %
1.5 %
R9 0.0 %
0.4 %
R10 0.0 %
0.0 %
R11 0.0 %
0.1 %
R12 0.0 %
3.3 %
R13 0.0 %
0.0 %
R14 0.0 %
0.0 %
R15 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 0.0 %
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
0.4 %
80 - 85 0
0
0
1.3 %
75 - 80 0
0
0
1.7 %
70 - 75 0
0
0
3.1 %
65 - 70 0
4
0
3.5 %
60 - 65 0
2
0
5.4 %
55 - 60 0
0
0
7.3 %
50 - 55 0
0
0
8.7 %
45 - 50 0
3
0
8.9 %
40 - 45 4
0
0
8.7 %
35 - 40 3
5
0
9.8 %
30 - 35 7
2
0
10.1 %
25 - 30 8
10
0
9.6 %
20 - 25 14
4
0
10.0 %
15 - 20 16
6
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 8.4
7.3
- - -
G2 8.5
7.2
- - -
G4 8.6
6.9
- - -
G5 8.6
7.6
- - -
G6 8.5
7.6
- - -
G7 8.3
6.7
- - -
G9 8.5
7.4
- - -
G10 8.5
6.8
- - -
G11 8.6
6.8
- - -
G12 8.6
7.4
- - -
G13 8.6
6.6
- - -
G14 8.3
6.6
- - -
G15 8.6
7.4
- - -
G16 8.5
6.9
- - -
G17 8.5
7.3
- - -
G18 7.9
5.3
- - -
G19 8.5
7.4
- - -
G20 8.5
6.9
- - -
G21 8.2
6.2
- - -
G22 8.2
6.3
- - -
G23 8.6
6.8
- - -
G24 8.4
7.4
- - -
G25 8.4
7.1
- - -
G26 8.5
6.8
- - -
G27 8.6
7.5
- - -
G28 7.9
5.5
- - -
G29 8.6
7.6
- - -
G30 8.5
7.2
- - -
G31 8.6
7.6
- - -
G32 8.5
6.9
- - -
R1 7.8
5.8
- - -
R2 7.8
7.3
- - -
R3 7.6
7.5
- - -
R4 8.3
7.6
- - -
R5 8.3
7.5
- - -
R6 8.0
6.8
- - -
R7 8.0
7.5
- - -
R8 8.1
7.5
- - -
R9 7.5
4.5
- - -
R10 8.2
5.9
- - -
R11 7.7
5.8
- - -
R12 7.2
6.7
- - -
R13 7.5
7.6
- - -
R14 6.8
6.0
- - -
R15 7.3
7.1
- - -
R16 7.5
6.8
- - -
R17 8.0
7.4
- - -
R18 8.2
7.6
- - -
R19 8.3
7.5
- - -
R20 6.5
7.4
- - -
R21 7.9
7.2
- - -
R22 8.1
7.6
- - -
R23 8.1
7.5
- - -
R24 7.6
6.1
- - -
Average GPS: 8.4
7.0
- - -
Average GLONASS: 7.8
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 35.2 ° 0.16 m
0.29 m
- - -
G2 39.5 ° 0.20 m
0.46 m
- - -
G4 37.6 ° 0.16 m
0.27 m
- - -
G5 49.7 ° 0.14 m
0.33 m
- - -
G6 50.6 ° 0.16 m
0.40 m
- - -
G7 33.9 ° 0.24 m
0.33 m
- - -
G9 51.0 ° 0.15 m
0.34 m
- - -
G10 38.2 ° 0.15 m
0.26 m
- - -
G11 38.1 ° 0.16 m
0.24 m
- - -
G12 50.0 ° 0.14 m
0.20 m
- - -
G13 43.9 ° 0.18 m
0.30 m
- - -
G14 38.6 ° 0.20 m
0.21 m
- - -
G15 44.7 ° 0.16 m
0.25 m
- - -
G16 46.7 ° 0.17 m
0.23 m
- - -
G17 38.6 ° 0.19 m
0.40 m
- - -
G18 27.7 ° 0.34 m
0.40 m
- - -
G19 37.8 ° 0.16 m
0.24 m
- - -
G20 44.3 ° 0.17 m
0.27 m
- - -
G21 37.9 ° 0.19 m
0.30 m
- - -
G22 29.9 ° 0.25 m
0.33 m
- - -
G23 42.8 ° 0.19 m
0.32 m
- - -
G24 35.6 ° 0.17 m
0.25 m
- - -
G25 40.4 ° 0.17 m
0.26 m
- - -
G26 34.7 ° 0.16 m
0.29 m
- - -
G27 35.3 ° 0.17 m
0.25 m
- - -
G28 25.6 ° 0.24 m
0.45 m
- - -
G29 48.0 ° 0.16 m
0.27 m
- - -
G30 40.3 ° 0.21 m
0.34 m
- - -
G31 50.2 ° 0.16 m
0.24 m
- - -
G32 47.4 ° 0.15 m
0.31 m
- - -
R1 47.8 ° 0.23 m
0.30 m
- - -
R2 28.9 ° 0.24 m
0.36 m
- - -
R3 38.6 ° 0.20 m
0.42 m
- - -
R4 51.1 ° 0.17 m
0.39 m
- - -
R5 41.9 ° 0.17 m
0.39 m
- - -
R6 31.1 ° 0.22 m
0.41 m
- - -
R7 33.7 ° 0.22 m
0.34 m
- - -
R8 44.7 ° 0.22 m
0.32 m
- - -
R9 38.7 ° 0.18 m
0.53 m
- - -
R10 50.8 ° 0.18 m
0.56 m
- - -
R11 41.9 ° 0.21 m
0.46 m
- - -
R12 33.2 ° 0.18 m
0.31 m
- - -
R13 44.7 ° 0.16 m
0.28 m
- - -
R14 48.3 ° 0.17 m
0.32 m
- - -
R15 36.8 ° 0.27 m
0.38 m
- - -
R16 27.8 ° 0.21 m
0.49 m
- - -
R17 31.6 ° 0.24 m
0.31 m
- - -
R18 32.8 ° 0.17 m
0.33 m
- - -
R19 44.8 ° 0.17 m
0.33 m
- - -
R20 48.1 ° 0.25 m
0.38 m
- - -
R21 36.6 ° 0.23 m
0.47 m
- - -
R22 37.9 ° 0.19 m
0.34 m
- - -
R23 50.7 ° 0.17 m
0.35 m
- - -
R24 42.7 ° 0.17 m
0.27 m
- - -
Average GPS: - 0.18 m
0.30 m
- - -
Average GLONASS: - 0.20 m
0.38 m
- - -
Average Galileo: - - - - - -
Average All: - 0.19 m
0.34 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.08 m
0.21 m
- - -
80 - 85 0.08 m
0.18 m
- - -
75 - 80 0.09 m
0.22 m
- - -
70 - 75 0.10 m
0.20 m
- - -
65 - 70 0.10 m
0.20 m
- - -
60 - 65 0.12 m
0.22 m
- - -
55 - 60 0.12 m
0.24 m
- - -
50 - 55 0.12 m
0.24 m
- - -
45 - 50 0.15 m
0.26 m
- - -
40 - 45 0.17 m
0.29 m
- - -
35 - 40 0.20 m
0.33 m
- - -
30 - 35 0.21 m
0.39 m
- - -
25 - 30 0.26 m
0.45 m
- - -
20 - 25 0.28 m
0.49 m
- - -
15 - 20 0.31 m
0.49 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 2014/11/11 23:59:30.00.

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 1.4 seconds to process this file 
-  This file was processed using version 4.4.0.1