Leica SpiderQC v4.2 Quality Report


Program Run: 2014/01/24 01:00:42.97

File Details:


Observation File: 02na0230.14o
GPS Navigation File: 02na0230.14n
GLONASS Navigation File: 02na0230.14g
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  Tiwi_RDH  02NA   
Observer/Agency:       
Receiver #/Type/Vers:  355552  LEICA GRX1200GGPRO  5.62/3.014 
Antenna #/Type:    LEIAX1202GG NONE   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  -4078495.928  4711380.453  -1355916.133 
Approx Position (plh):  12° 21' 21.35483" S  130° 52' 54.20363" E  117.758m 
Diff. Est-Header:  -1.5 m dX  10.9 m dY  -4.0 m dZ 
Diff. Est-Header:  11.7 m (2165 estimates) 

Session Summary:


Time of first obs:  2014/01/23 00:00:00.00 GPS 
Time of last obs:  2014/01/23 23:59:30.00 GPS 
Session length:  23.99 hours 
GPS week:  1776, day 4 
Observation interval:  30.00 seconds 
UTC leap seconds:  16 seconds 

Num SVs with obs:  53 
Num SVs with nav:  54 
Total GPS orbits:  186 
Total GLONASS orbits:  309 
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 G27 G28 G29 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R11 R12 R13 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without obs:  G30 R10 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 R11 R12 R13 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24  
SVs without nav:  R10 R14  
User Disabled SVs:  None 
Meteo epochs:  0 
Auxiliary epochs:  0 

Quality Testing:


  Pass/Fail   Details 
General Tests 
Epochs With Data:  Fail  Value 75.2 %, Threshold 99.0 % 
File Format:  Pass   
RX Clock:  Pass   
Other:  Fail  (See Error Messages) 
     
GPS Specific Tests 
Cycle Slips:  Pass  Value 4 slips, Threshold 35 slips 
Multipath:  Pass  Value 0.21m MP1 / 0.25m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 7 slips, Threshold 70 slips 
Multipath:  Pass  Value 0.19m MP1 / 0.32m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  33260 
Num possible obs > 0°:  39799 
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°:  19984 
Num obs GLONASS > 0°:  13276 
Num obs Galileo > 0°:  0 
Num obs All > 0°:  33260 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  2165  (100.0 %) 
Epochs with full data > 15°:  2165  (100.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  4.9  3.4 
GDOP  3.1  6.0  4.1 

Data Gaps 
Num epochs with data:  2165 
Num epochs without data:  715 
Data Gaps:  60.00 minutes 

List of Data Gaps (-) 
Duration  Start Time  End Time 
60.00 minutes  2014/01/23 12:59:30.00  2014/01/23 14:00:00.00 
Total:  60.00 minutes   

Non-tracked satellites > 15° (^): 
SV  Time (minutes)  Epoch Range  Elevation Range  Azimuth Range 
None   

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000094 ms (at 2014/01/23 03:38:30.00) 
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°:  28989  17374  11615  - 
% obs > 15°:   100.0 %  100.0 %  100.0 %  - 
Num possible obs > 15°:  28989  17374  11615  - 
Num complete obs > 15°:  28989  17374  11615  - 
% complete obs > 15°:   100.0 %  100.0 %  100.0 %  - 
Average # SV per Epoch:  13.4   8.0   5.4   - 
         
Obs L2 : Obs L1:  1.000   1.000   1.000   - 
Obs L5 : Obs L1:  -  -  -  - 

Cycle Slips         
Num cycle slips > 15°:  11  4  7  - 
% slips per complete obs:  0.038 %  0.023 %  0.060 %  - 
Num complete obs per slip:  263536   434350   165929   - 
IOD Slips > 15°:  -  -  -  - 
Outliers > 15°:  -  -  -  - 
LLI L1 : Obs L1:  -  -  -  - 
LLI L2 : Obs L2:  0.0001   -  0.0002   - 
LLI L5 : Obs L5:  -  -  -  - 

Multipath         
MP1 RMS:  0.198 m  0.206 m  0.188 m  - 
MP2 RMS:  0.277 m  0.247 m  0.318 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 100.0 %
N/A N/A
L2P 100.0 %
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 15.04° 71.73° 122 122 (100.0 %)
0 (0.0 %) 0
G2 15.01° 68.34° 614 614 (100.0 %)
0 (0.0 %) 1
G3 15.08° 55.13° 179 179 (100.0 %)
0 (0.0 %) 0
G4 15.02° 42.92° 865 865 (100.0 %)
0 (0.0 %) 0
G5 15.04° 34.91° 931 931 (100.0 %)
0 (0.0 %) 0
G6 15.04° 72.97° 291 291 (100.0 %)
0 (0.0 %) 0
G7 15.03° 56.06° 719 719 (100.0 %)
0 (0.0 %) 0
G8 15.06° 44.05° 954 954 (100.0 %)
0 (0.0 %) 0
G9 15.16° 38.38° 1003 1003 (100.0 %)
0 (0.0 %) 0
G10 15.05° 60.04° 608 608 (100.0 %)
0 (0.0 %) 0
G11 15.05° 64.72° 32 32 (100.0 %)
0 (0.0 %) 0
G12 15.02° 61.35° 820 820 (100.0 %)
0 (0.0 %) 0
G13 15.15° 44.76° 647 647 (100.0 %)
0 (0.0 %) 1
G14 15.12° 69.62° 340 340 (100.0 %)
0 (0.0 %) 0
G15 15.02° 46.86° 814 814 (100.0 %)
0 (0.0 %) 0
G16 15.08° 34.77° 504 504 (100.0 %)
0 (0.0 %) 0
G17 15.10° 72.80° 623 623 (100.0 %)
0 (0.0 %) 1
G18 15.07° 89.18° 663 663 (100.0 %)
0 (0.0 %) 0
G19 15.06° 54.92° 60 60 (100.0 %)
0 (0.0 %) 0
G20 15.12° 72.65° 329 329 (100.0 %)
0 (0.0 %) 1
G21 15.11° 52.15° 867 867 (100.0 %)
0 (0.0 %) 0
G22 15.08° 70.60° 559 559 (100.0 %)
0 (0.0 %) 0
G23 15.02° 41.96° 465 465 (100.0 %)
0 (0.0 %) 0
G24 15.04° 82.24° 644 644 (100.0 %)
0 (0.0 %) 0
G25 15.10° 83.95° 667 667 (100.0 %)
0 (0.0 %) 0
G26 15.05° 72.85° 628 628 (100.0 %)
0 (0.0 %) 0
G27 15.03° 65.62° 246 246 (100.0 %)
0 (0.0 %) 0
G28 15.06° 76.90° 674 674 (100.0 %)
0 (0.0 %) 0
G29 15.04° 43.24° 977 977 (100.0 %)
0 (0.0 %) 0
G31 15.01° 45.31° 280 280 (100.0 %)
0 (0.0 %) 0
G32 15.08° 46.73° 249 249 (100.0 %)
0 (0.0 %) 0
R1 15.06° 82.11° 659 659 (100.0 %)
0 (0.0 %) 1
R2 15.05° 71.14° 850 850 (100.0 %)
0 (0.0 %) 0
R3 15.00° 45.08° 848 848 (100.0 %)
0 (0.0 %) 0
R4 15.11° 69.45° 512 512 (100.0 %)
0 (0.0 %) 2
R5 15.21° 83.37° 509 509 (100.0 %)
0 (0.0 %) 0
R6 15.07° 55.76° 311 311 (100.0 %)
0 (0.0 %) 0
R7 15.05° 31.65° 192 192 (100.0 %)
0 (0.0 %) 0
R8 15.06° 54.30° 341 341 (100.0 %)
0 (0.0 %) 0
R9 15.01° 42.25° 235 235 (100.0 %)
0 (0.0 %) 0
R11 15.09° 81.48° 272 272 (100.0 %)
0 (0.0 %) 1
R12 15.06° 57.27° 982 982 (100.0 %)
0 (0.0 %) 1
R13 15.02° 54.63° 1047 1047 (100.0 %)
0 (0.0 %) 0
R15 15.06° 71.47° 507 507 (100.0 %)
0 (0.0 %) 0
R16 15.01° 45.03° 434 434 (100.0 %)
0 (0.0 %) 0
R17 15.03° 57.65° 593 593 (100.0 %)
0 (0.0 %) 0
R18 15.05° 33.78° 906 906 (100.0 %)
0 (0.0 %) 0
R19 15.01° 56.53° 470 470 (100.0 %)
0 (0.0 %) 0
R20 15.11° 70.17° 231 231 (100.0 %)
0 (0.0 %) 0
R21 15.07° 69.27° 49 49 (100.0 %)
0 (0.0 %) 0
R22 15.00° 46.77° 390 390 (100.0 %)
0 (0.0 %) 0
R23 15.05° 68.18° 640 640 (100.0 %)
0 (0.0 %) 1
R24 15.03° 85.61° 637 637 (100.0 %)
0 (0.0 %) 1

Missing phase observations by satellite > 15°: 
SV Observations Missing L1 Missing L2
G1 0.4 %
0.0 %
0.0 %
G2 2.1 %
0.0 %
0.0 %
G3 0.6 %
0.0 %
0.0 %
G4 3.0 %
0.0 %
0.0 %
G5 3.2 %
0.0 %
0.0 %
G6 1.0 %
0.0 %
0.0 %
G7 2.5 %
0.0 %
0.0 %
G8 3.3 %
0.0 %
0.0 %
G9 3.5 %
0.0 %
0.0 %
G10 2.1 %
0.0 %
0.0 %
G11 0.1 %
0.0 %
0.0 %
G12 2.8 %
0.0 %
0.0 %
G13 2.2 %
0.0 %
0.0 %
G14 1.2 %
0.0 %
0.0 %
G15 2.8 %
0.0 %
0.0 %
G16 1.7 %
0.0 %
0.0 %
G17 2.1 %
0.0 %
0.0 %
G18 2.3 %
0.0 %
0.0 %
G19 0.2 %
0.0 %
0.0 %
G20 1.1 %
0.0 %
0.0 %
G21 3.0 %
0.0 %
0.0 %
G22 1.9 %
0.0 %
0.0 %
G23 1.6 %
0.0 %
0.0 %
G24 2.2 %
0.0 %
0.0 %
G25 2.3 %
0.0 %
0.0 %
G26 2.2 %
0.0 %
0.0 %
G27 0.8 %
0.0 %
0.0 %
G28 2.3 %
0.0 %
0.0 %
G29 3.4 %
0.0 %
0.0 %
G31 1.0 %
0.0 %
0.0 %
G32 0.9 %
0.0 %
0.0 %
R1 2.3 %
0.0 %
0.0 %
R2 2.9 %
0.0 %
0.0 %
R3 2.9 %
0.0 %
0.0 %
R4 1.8 %
0.0 %
0.0 %
R5 1.8 %
0.0 %
0.0 %
R6 1.1 %
0.0 %
0.0 %
R7 0.7 %
0.0 %
0.0 %
R8 1.2 %
0.0 %
0.0 %
R9 0.8 %
0.0 %
0.0 %
R11 0.9 %
0.0 %
0.0 %
R12 3.4 %
0.0 %
0.0 %
R13 3.6 %
0.0 %
0.0 %
R15 1.7 %
0.0 %
0.0 %
R16 1.5 %
0.0 %
0.0 %
R17 2.0 %
0.0 %
0.0 %
R18 3.1 %
0.0 %
0.0 %
R19 1.6 %
0.0 %
0.0 %
R20 0.8 %
0.0 %
0.0 %
R21 0.2 %
0.0 %
0.0 %
R22 1.3 %
0.0 %
0.0 %
R23 2.2 %
0.0 %
0.0 %
R24 2.2 %
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 %
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 %
0.0 %
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 %
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 %
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 %
0.0 %
R8 0.0 %
0.0 %
R9 0.0 %
0.0 %
R11 0.0 %
0.0 %
R12 0.0 %
0.0 %
R13 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
0.2 %
80 - 85 0
0
0
1.0 %
75 - 80 0
0
0
1.1 %
70 - 75 0
0
0
2.3 %
65 - 70 0
0
0
3.5 %
60 - 65 0
0
0
3.1 %
55 - 60 0
0
0
4.7 %
50 - 55 0
0
0
5.9 %
45 - 50 0
0
0
5.4 %
40 - 45 0
0
0
9.3 %
35 - 40 0
0
0
10.7 %
30 - 35 0
0
0
13.1 %
25 - 30 2
0
0
12.6 %
20 - 25 1
3
0
13.2 %
15 - 20 1
4
0
13.9 %
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 7.5
6.0
- - -
G2 8.5
6.9
- - -
G3 8.0
5.8
- - -
G4 7.8
5.1
- - -
G5 7.9
6.1
- - -
G6 8.4
6.6
- - -
G7 8.3
6.6
- - -
G8 8.2
5.8
- - -
G9 8.0
5.9
- - -
G10 8.3
6.3
- - -
G11 6.8
4.3
- - -
G12 8.4
6.7
- - -
G13 8.3
5.8
- - -
G14 8.2
6.5
- - -
G15 8.0
6.2
- - -
G16 7.9
5.4
- - -
G17 8.6
7.1
- - -
G18 8.5
6.4
- - -
G19 7.5
5.8
- - -
G20 8.5
6.8
- - -
G21 7.9
5.6
- - -
G22 8.7
7.2
- - -
G23 8.3
5.7
- - -
G24 8.3
7.1
- - -
G25 8.3
6.8
- - -
G26 8.5
6.6
- - -
G27 8.3
7.1
- - -
G28 8.5
6.4
- - -
G29 8.1
6.6
- - -
G31 7.6
5.5
- - -
G32 7.5
5.3
- - -
R1 7.9
5.5
- - -
R2 7.9
6.9
- - -
R3 7.3
6.7
- - -
R4 8.1
7.3
- - -
R5 8.3
7.6
- - -
R6 8.3
7.4
- - -
R7 7.0
6.4
- - -
R8 8.2
7.5
- - -
R9 6.6
4.7
- - -
R11 7.5
5.5
- - -
R12 6.3
6.2
- - -
R13 6.8
6.9
- - -
R15 7.5
7.0
- - -
R16 7.4
6.7
- - -
R17 8.1
7.0
- - -
R18 7.6
6.6
- - -
R19 8.1
7.3
- - -
R20 6.8
7.3
- - -
R21 6.4
4.5
- - -
R22 7.4
6.6
- - -
R23 8.2
7.2
- - -
R24 8.2
7.2
- - -
Average GPS: 8.1
6.2
- - -
Average GLONASS: 7.5
6.6
- - -
Average Galileo: - - - - -
Average All: 7.9
6.4
- - -

Code multipath by satellite > 15°: 
SV Av Elev MP1 MP2 MP5 MP5b MP5a+b
G1 43.4 ° 0.24 m
0.24 m
- - -
G2 41.7 ° 0.19 m
0.19 m
- - -
G3 35.1 ° 0.21 m
0.23 m
- - -
G4 29.0 ° 0.22 m
0.30 m
- - -
G5 25.0 ° 0.24 m
0.28 m
- - -
G6 44.0 ° 0.16 m
0.19 m
- - -
G7 35.5 ° 0.18 m
0.24 m
- - -
G8 29.6 ° 0.18 m
0.25 m
- - -
G9 26.8 ° 0.18 m
0.22 m
- - -
G10 37.5 ° 0.19 m
0.22 m
- - -
G11 39.9 ° 0.47 m
0.46 m
- - -
G12 38.2 ° 0.18 m
0.27 m
- - -
G13 30.0 ° 0.17 m
0.17 m
- - -
G14 42.4 ° 0.18 m
0.21 m
- - -
G15 30.9 ° 0.18 m
0.31 m
- - -
G16 24.9 ° 0.21 m
0.26 m
- - -
G17 44.0 ° 0.21 m
0.20 m
- - -
G18 52.1 ° 0.21 m
0.23 m
- - -
G19 35.0 ° 0.39 m
0.41 m
- - -
G20 43.9 ° 0.17 m
0.15 m
- - -
G21 33.6 ° 0.17 m
0.33 m
- - -
G22 42.8 ° 0.17 m
0.19 m
- - -
G23 28.5 ° 0.16 m
0.20 m
- - -
G24 48.6 ° 0.14 m
0.20 m
- - -
G25 49.5 ° 0.16 m
0.23 m
- - -
G26 43.9 ° 0.18 m
0.21 m
- - -
G27 40.3 ° 0.15 m
0.18 m
- - -
G28 46.0 ° 0.23 m
0.24 m
- - -
G29 29.1 ° 0.17 m
0.23 m
- - -
G31 30.2 ° 0.20 m
0.36 m
- - -
G32 30.9 ° 0.25 m
0.28 m
- - -
R1 48.6 ° 0.15 m
0.22 m
- - -
R2 43.1 ° 0.15 m
0.30 m
- - -
R3 30.0 ° 0.26 m
0.42 m
- - -
R4 42.3 ° 0.22 m
0.23 m
- - -
R5 49.3 ° 0.14 m
0.25 m
- - -
R6 35.4 ° 0.17 m
0.28 m
- - -
R7 23.3 ° 0.23 m
0.28 m
- - -
R8 34.7 ° 0.13 m
0.16 m
- - -
R9 28.6 ° 0.25 m
0.74 m
- - -
R11 48.3 ° 0.16 m
0.21 m
- - -
R12 36.2 ° 0.21 m
0.34 m
- - -
R13 34.8 ° 0.22 m
0.37 m
- - -
R15 43.3 ° 0.18 m
0.29 m
- - -
R16 30.0 ° 0.17 m
0.35 m
- - -
R17 36.3 ° 0.21 m
0.30 m
- - -
R18 24.4 ° 0.21 m
0.50 m
- - -
R19 35.8 ° 0.16 m
0.26 m
- - -
R20 42.6 ° 0.16 m
0.28 m
- - -
R21 42.2 ° 0.24 m
0.37 m
- - -
R22 30.9 ° 0.16 m
0.32 m
- - -
R23 41.6 ° 0.19 m
0.22 m
- - -
R24 50.3 ° 0.18 m
0.29 m
- - -
Average GPS: - 0.21 m
0.25 m
- - -
Average GLONASS: - 0.19 m
0.32 m
- - -
Average Galileo: - - - - - -
Average All: - 0.20 m
0.28 m
- - -

Code multipath by satellite elevation > 15°: 
Elevation MP1 MP2 MP5 MP5b MP5a+b
85 - 90 0.14 m
0.14 m
- - -
80 - 85 0.08 m
0.14 m
- - -
75 - 80 0.10 m
0.16 m
- - -
70 - 75 0.10 m
0.15 m
- - -
65 - 70 0.10 m
0.14 m
- - -
60 - 65 0.12 m
0.14 m
- - -
55 - 60 0.12 m
0.17 m
- - -
50 - 55 0.13 m
0.20 m
- - -
45 - 50 0.12 m
0.21 m
- - -
40 - 45 0.14 m
0.21 m
- - -
35 - 40 0.17 m
0.24 m
- - -
30 - 35 0.19 m
0.27 m
- - -
25 - 30 0.23 m
0.32 m
- - -
20 - 25 0.26 m
0.40 m
- - -
15 - 20 0.30 m
0.42 m
- - -
10 - 15 - - - - -
5 - 10 - - - - -
0 - 5 - - - - -


Observation File Messages:





GPS Navigation File Messages:




GLONASS Navigation File Messages:




General Messages:


- Change in observation interval detected at 2014/01/23 14:00:00.00
- Change in observation interval detected at 2014/01/23 15:00:00.00
- Change in observation interval detected at 2014/01/23 19:00:30.00

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