Leica SpiderQC v7.5 Quality Report


Program Run: 2021/04/16 11:02:10.76

File Details:


Observation File: motr106k.21o
GPS Navigation File: motr106k.21n
GLONASS Navigation File: motr106k.21g
Galileo Navigation File: motr106k.21l
BeiDou Navigation File: motr106k.21f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  MOTR  13478M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1832496  LEICA GR50  4.20/7.300 
Antenna #/Type:  21102003  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5106803.433  -314181.572  3795722.987 
Approx Position (plh):  36° 45' 17.14633" N  3° 31' 13.88217" W  166.943m 
Diff. Est-Header:  2.4 m dX  -3.9 m dY  4.3 m dZ 
Diff. Est-Header:  6.3 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/04/16 10:00:00.00 GPS 
Time of last obs:  2021/04/16 10:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2153, day 5 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  35 
Num SVs with nav:  101 
Total GPS orbits:  42 
Total GLONASS orbits:  42 
Total Galileo orbits:  104 
Total BeiDou orbits:  31 
Total QZSS orbits: 
Total NavIC orbits: 
SVs with obs:  G2 G6 G10 G12 G15 G25 G29 G31 G32 R3 R4 R5 R13 R14 R15 R17 R18 R23 R24 E7 E8 E13 E15 E19 E21 E27 E30 C5 C13 C19 C20 C23 C27 C28 C30  
SVs without obs:  G1 G3 G4 G5 G7 G8 G9 G11 G13 G14 G16 G17 G18 G19 G20 G21 G22 G23 G24 G26 G27 G28 G30 R1 R2 R6 R7 R8 R9 R10 R11 R12 R16 R19 R20 R21 R22 E1 E2 E3 E4 E5 E6 E9 E10 E11 E12 E14 E16 E17 E18 E20 E22 E23 E24 E25 E26 E28 E29 E31 E32 E33 E34 E35 E36 C1 C2 C3 C4 C6 C7 C8 C9 C10 C11 C12 C14 C15 C16 C17 C18 C21 C22 C24 C25 C26 C29 C31 C32 C33 C34 C35 C36 C37 J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 I1 I2 I3 I4 I5 I6 I7  
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 E1 E2 E3 E4 E5 E7 E8 E9 E11 E12 E13 E14 E15 E19 E21 E24 E25 E26 E27 E30 E31 E33 C5 C6 C8 C9 C10 C11 C12 C13 C14 C16 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30  
SVs without nav:  E6 E10 E16 E17 E18 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C7 C15 C17 C31 C32 C33 C34 C35 C36 C37  
User Disabled SVs:  None 
Meteo epochs: 
Auxiliary epochs: 

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 0 slips, Threshold 40 slips 
Multipath:  Pass  Value 0.12m MP1 / 0.13m MP2 / 0.14m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 5 slips, Threshold 159 slips 
Multipath:  Pass  Value 0.19m MP1 / 0.20m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 2 slips, Threshold 111 slips 
Multipath:  Pass  Value 0.18m MP1 / 0.33m MP5a / 0.33m MP5b / 0.10m MP5a+b, Threshold 0.5 m 
Data Completeness:  Fail  Value 88.7 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 90 slips 
Multipath:  Fail  Value 0.68m MP1 / 0.37m MP2b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  100798 
Num possible obs > 0°:  111052 
Num obs with invalid nav: 
Num obs without nav: 
Num obs to unhealthy SV: 
Num obs with WLF change: 
Num complete loss of lock: 

Epochs with < 5 SV > 15°:  (0.0 %) 
Epochs with all SV > 15°:  1235  (34.3 %) 
Epochs with full data > 15°:  1233  (34.3 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.4  3.2  2.9 
GDOP  3.0  4.0  3.5 

Data Gaps 
Num epochs with data:  3600 
Num epochs without data: 
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 
E19  39.400  222 / 2586  15.00° / 21.63°  318.97° / 307.98° 
Total:  39.400 (2364 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000031 ms (at 2021/04/16 10:08:58.00) 
Num of RX clock resets: 
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  BeiDou  QZSS  NavIC 
Tracking information over 0° 
Num obs > 0°:  100798  23988  30519  19962  26329 
Num possible obs > 0°:  111052  26538  30635  26101  27778 
Num obs with invalid nav: 
Num obs without nav: 
Num obs to unhealthy SV: 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  79832  19776  26489  18500  15067 
% obs > 15°:   97.1 %  100.0 %  100.0 %  88.7 %  100.0 % 
Num possible obs > 15°:  82199  19776  26491  20865  15067 
Num complete obs > 15°:  79825  19776  26484  18498  15067 
% complete obs > 15°:   97.1 %  100.0 %  100.0 %  88.7 %  100.0 % 
Num obs with WLF change:  
Average # SV per Epoch:  22.2   5.5   7.4   5.1   4.2  
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.767   1.818   1.728  
Obs E5b/B2I:  0.610   1.000   0.132  
Obs L5/E5a/B2a:  0.671   0.364   1.000  
Obs E5a+b/B2a+b:  1.000   1.000  
Obs L6/E6/B3I/G2a: 
Obs G3: 

Cycle Slips               
Num cycle slips > 15°: 
% slips per complete obs:  0.009 %  0.019 %  0.011 % 
Num complete obs per slip:  11403   5296   9249  
IOD Slips > 15°: 
Outliers > 15°: 
LLI : Obs L1/E1/B1I:  0.0000   0.0000   0.0001  
LLI : Obs L2/B1C:  0.0001   0.0001  
LLI : Obs E5b/B2I:  0.0000   0.0001  
LLI : Obs L5/E5a/B2a:  0.0000   0.0001  
LLI : Obs E5a+b/B2a+b:  0.0001   0.0001  
LLI : Obs L6/E6/B3I/G2a: 
LLI : Obs G3: 

Multipath               
MP (L1/E1/B1I) RMS:  0.304 m  0.122 m  0.187 m  0.179 m  0.684 m 
MP (L2/B1C) RMS:  0.168 m  0.133 m  0.199 m 
MP (L5/E5a/B2a) RMS:  0.279 m  0.138 m  0.326 m 
MP (E5b/B2I) RMS:  0.339 m  0.333 m  0.374 m 
MP (E5a+b/B2a+b) RMS:  0.098 m  0.098 m 
MP (L6/E6/B3I/G2a) RMS: 
MP (G3) RMS: 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1C 100.0 %
100.0 %
100.0 %
100.0 %
L1I 100.0 %
100.0 %
100.0 %
100.0 %
L2C 86.4 %
86.4 %
86.4 %
86.4 %
L2P 86.4 %
86.4 %
86.4 %
86.4 %
L2S 81.8 %
81.8 %
81.8 %
81.8 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 67.1 %
67.1 %
67.1 %
67.1 %
L7I 13.2 %
13.2 %
13.2 %
13.2 %
L7Q 100.0 %
100.0 %
100.0 %
100.0 %
L8Q 100.0 %
100.0 %
100.0 %
100.0 %

Tracking by satellite > 15°: 
SV GPS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
G2 19.08° 22.55° 3600 3600 (100.0 %)
0 (0.0 %) 0
G12 35.08° 56.29° 3600 3600 (100.0 %)
0 (0.0 %) 0
G25 63.89° 67.46° 3600 3600 (100.0 %)
0 (0.0 %) 0
G29 34.91° 65.39° 3600 3600 (100.0 %)
0 (0.0 %) 0
G31 15.00° 26.38° 1776 1776 (100.0 %)
0 (0.0 %) 0
G32 44.06° 47.80° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R4 15.00° 33.78° 2640 2640 (100.0 %)
0 (0.0 %) 0
R5 23.15° 30.22° 3600 3600 (100.0 %)
0 (0.0 %) 0
R13 15.00° 25.24° 2251 2249 (99.9 %)
0 (0.0 %) 5
R14 50.29° 54.34° 3600 3600 (100.0 %)
0 (0.0 %) 0
R15 26.10° 44.23° 3600 3600 (100.0 %)
0 (0.0 %) 0
R17 15.48° 47.84° 3600 3600 (100.0 %)
0 (0.0 %) 0
R23 18.50° 36.51° 3600 3600 (100.0 %)
0 (0.0 %) 0
R24 42.92° 51.46° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E7 17.33° 39.05° 3600 3600 (100.0 %)
0 (0.0 %) 0
E13 15.01° 15.33° 56 56 (100.0 %)
0 (0.0 %) 0
E15 21.62° 41.08° 3600 3600 (100.0 %)
0 (0.0 %) 0
E19 21.64° 23.13° 3379 1014 (30.0 %)
0 (0.0 %) 2
E21 15.00° 25.68° 3030 3030 (100.0 %)
0 (0.0 %) 0
E27 57.90° 64.83° 3600 3600 (100.0 %)
0 (0.0 %) 0
E30 34.26° 47.67° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C13 15.00° 19.09° 1994 1994 (100.0 %)
0 (0.0 %) 0
C19 15.00° 20.08° 2453 2453 (100.0 %)
0 (0.0 %) 0
C20 15.00° 21.65° 1317 1317 (100.0 %)
0 (0.0 %) 0
C23 15.00° 23.47° 1942 1942 (100.0 %)
0 (0.0 %) 0
C27 31.66° 57.85° 3600 3600 (100.0 %)
0 (0.0 %) 0
C28 44.47° 49.98° 3600 3600 (100.0 %)
0 (0.0 %) 0
C30 15.01° 16.05° 161 161 (100.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV GPS Observations Missing L1C Missing L2S Missing L2W Missing L5Q
G2 4.5 %
0.0 %
100.0 %
0.0 %
100.0 %
G12 4.5 %
0.0 %
0.0 %
0.0 %
100.0 %
G25 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %
G29 4.5 %
0.0 %
0.0 %
0.0 %
100.0 %
G31 2.2 %
0.0 %
0.0 %
0.0 %
100.0 %
G32 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R4 3.3 %
0.0 %
0.0 %
0.0 %
R5 4.5 %
0.0 %
0.0 %
0.0 %
R13 2.8 %
0.2 %
0.0 %
0.2 %
R14 4.5 %
0.0 %
0.0 %
0.0 %
R15 4.5 %
0.0 %
0.0 %
0.0 %
R17 4.5 %
0.0 %
0.0 %
0.0 %
R23 4.5 %
0.0 %
100.0 %
100.0 %
R24 4.5 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E7 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %
E13 0.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E15 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %
E19 1.3 %
0.0 %
0.2 %
0.2 %
0.2 %
E21 3.8 %
0.0 %
0.0 %
0.0 %
0.0 %
E27 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %
E30 4.5 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I
C13 2.5 %
0.0 %
0.0 %
C19 3.1 %
0.0 %
100.0 %
C20 1.6 %
0.0 %
100.0 %
C23 2.4 %
0.0 %
100.0 %
C27 4.5 %
0.0 %
100.0 %
C28 4.5 %
0.0 %
100.0 %
C30 0.2 %
0.0 %
100.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G2 0.0 %
100.0 %
0.0 %
100.0 %
G12 0.0 %
0.0 %
0.0 %
100.0 %
G25 0.0 %
0.0 %
0.0 %
0.0 %
G29 0.0 %
0.0 %
0.0 %
100.0 %
G31 0.0 %
0.0 %
0.0 %
100.0 %
G32 0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Missing C1C Missing C2C Missing C2P
R4 0.0 %
0.0 %
0.0 %
R5 0.0 %
0.0 %
0.0 %
R13 0.0 %
0.0 %
0.0 %
R14 0.0 %
0.0 %
0.0 %
R15 0.0 %
0.0 %
0.0 %
R17 0.0 %
0.0 %
0.0 %
R23 0.0 %
100.0 %
100.0 %
R24 0.0 %
0.0 %
0.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E7 0.0 %
0.0 %
0.0 %
0.0 %
E13 0.0 %
0.0 %
0.0 %
0.0 %
E15 0.0 %
0.0 %
0.0 %
0.0 %
E19 0.0 %
0.2 %
0.2 %
0.2 %
E21 0.0 %
0.0 %
0.0 %
0.0 %
E27 0.0 %
0.0 %
0.0 %
0.0 %
E30 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C7I
C13 0.0 %
0.0 %
C19 0.0 %
100.0 %
C20 0.0 %
100.0 %
C23 0.0 %
100.0 %
C27 0.0 %
100.0 %
C28 0.0 %
100.0 %
C30 0.0 %
100.0 %

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Cycle Slips BeiDou Cycle Slips QZSS Cycle Slips NavIC Observations
85 - 90 0
0
0
0
0
0
0.0 %
80 - 85 0
0
0
0
0
0
0.0 %
75 - 80 0
0
0
0
0
0
0.0 %
70 - 75 0
0
0
0
0
0
0.0 %
65 - 70 0
0
0
0
0
0
4.1 %
60 - 65 0
0
0
0
0
0
4.6 %
55 - 60 0
0
0
0
0
0
2.6 %
50 - 55 0
0
0
0
0
0
9.6 %
45 - 50 0
0
0
0
0
0
14.0 %
40 - 45 0
0
0
0
0
0
7.3 %
35 - 40 0
0
0
0
0
0
9.1 %
30 - 35 0
0
0
0
0
0
8.3 %
25 - 30 0
0
0
0
0
0
9.2 %
20 - 25 0
0
2
0
0
0
15.9 %
15 - 20 0
5
0
0
0
0
15.5 %
10 - 15 0
0
0
0
0
0
0.0 %
5 - 10 0
0
0
0
0
0
0.0 %
0 - 5 0
0
0
0
0
0
0.0 %

Signal to Noise Ratio by satellite > 15°: 
SV GPS L1 L2 L5
G2 42.9
41.3
-
G12 50.3
48.6
-
G25 53.4
53.6
58.0
G29 50.7
49.4
-
G31 43.2
43.5
-
G32 52.3
51.8
54.9
Average GPS: 48.8
48.0
56.5

SV GLONASS G1 G2
R4 44.6
42.7
R5 47.8
44.7
R13 33.9
36.7
R14 52.9
48.6
R15 49.7
46.1
R17 46.9
43.9
R23 46.8
-
R24 51.9
47.3
Average GLONASS: 46.8
44.3

SV Galileo E1 E5a E5b E5a+b
E7 45.7
48.7
49.0
51.9
E13 39.9
44.1
44.7
47.3
E15 46.4
49.3
49.6
52.5
E19 39.5
43.8
43.6
46.9
E21 43.5
46.8
46.7
49.8
E27 54.5
56.0
56.8
59.5
E30 50.2
51.8
52.3
55.1
Average Galileo: 45.7
48.7
49.0
51.9

SV BeiDou B1I B2I
C13 38.7
40.7
C19 41.7
-
C20 42.5
-
C23 41.7
-
C27 49.8
-
C28 50.8
-
C30 39.6
-
Average BeiDou: 43.5
40.7

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G2 20.8 ° 0.20 m
0.27 m
-
G12 45.7 ° 0.14 m
0.11 m
-
G25 65.7 ° 0.07 m
0.08 m
0.13 m
G29 50.2 ° 0.07 m
0.05 m
-
G31 20.7 ° 0.17 m
0.21 m
-
G32 45.9 ° 0.08 m
0.07 m
0.15 m
Average GPS: - 0.12 m
0.13 m
0.14 m

SV GLONASS Av Elev MP (G1) MP (G2)
R4 24.4 ° 0.24 m
0.21 m
R5 26.7 ° 0.18 m
0.19 m
R13 20.1 ° 0.36 m
0.27 m
R14 52.3 ° 0.07 m
0.10 m
R15 35.2 ° 0.13 m
0.17 m
R17 31.7 ° 0.17 m
0.24 m
R23 - - -
R24 47.2 ° 0.17 m
0.21 m
Average GLONASS: - 0.19 m
0.20 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E7 28.2 ° 0.13 m
0.28 m
0.24 m
0.05 m
E13 - - - - -
E15 31.3 ° 0.10 m
0.27 m
0.25 m
0.05 m
E19 22.4 ° 0.33 m
0.44 m
0.56 m
0.30 m
E21 20.3 ° 0.25 m
0.30 m
0.38 m
0.12 m
E27 61.4 ° 0.15 m
0.37 m
0.30 m
0.02 m
E30 41.0 ° 0.11 m
0.29 m
0.28 m
0.05 m
Average Galileo: - 0.18 m
0.33 m
0.33 m
0.10 m

SV BeiDou Av Elev MP (B1I) MP (B2I)
C13 17.0 ° 0.47 m
0.37 m
C19 17.5 ° 0.88 m
-
C20 18.3 ° 0.94 m
-
C23 19.2 ° 1.58 m
-
C27 44.8 ° 0.62 m
-
C28 47.2 ° 0.19 m
-
C30 15.5 ° 0.11 m
-
Average BeiDou: - 0.68 m
0.37 m

Code multipath by satellite elevation > 15°: 
Elevation MP (L1/E1/B1I) MP (L2/B1C) MP (L5/E5a/B2a) MP (E5b/B2I) MP (E5a+b/B2a+b) MP (L6/E6/B3I/G2a) MP (G3)
85 - 90 - - - - - - -
80 - 85 - - - - - - -
75 - 80 - - - - - - -
70 - 75 - - - - - - -
65 - 70 0.06 m
0.08 m
0.13 m
- - - -
60 - 65 0.13 m
0.06 m
0.38 m
0.33 m
0.02 m
- -
55 - 60 0.26 m
0.08 m
0.23 m
0.23 m
0.02 m
- -
50 - 55 0.17 m
0.11 m
- - - - -
45 - 50 0.14 m
0.11 m
0.18 m
0.26 m
0.05 m
- -
40 - 45 0.13 m
0.14 m
0.18 m
0.24 m
0.03 m
- -
35 - 40 0.18 m
0.14 m
0.29 m
0.25 m
0.05 m
- -
30 - 35 0.21 m
0.17 m
0.25 m
0.26 m
0.05 m
- -
25 - 30 0.18 m
0.23 m
0.30 m
0.22 m
0.07 m
- -
20 - 25 0.38 m
0.25 m
0.34 m
0.40 m
0.15 m
- -
15 - 20 0.56 m
0.26 m
0.33 m
0.37 m
0.09 m
- -
10 - 15 - - - - - - -
5 - 10 - - - - - - -
0 - 5 - - - - - - -


Observation File Messages:





GPS Navigation File Messages:




GLONASS Navigation File Messages:




Galileo Navigation File Messages:




BeiDou Navigation File Messages:




General Messages:


- Updated header information or comments after epoch 2021/04/16 10:59:59.00

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 code and phase measurements with a SNR of at least 0 
(#)  A complete GLONASS observation contains non-zero G1 code and phase measurements with a SNR of at least 0 
(#)  A complete Galileo observation contains non-zero E1, E5a code and phase measurements with a SNR of at least 0 
(#)  A complete BeiDou observation contains non-zero B1I code and phase measurements with a SNR of at least 0 
(#)  A complete QZSS observation contains non-zero L1 code and phase measurements with a SNR of at least 0 
(#)  A complete NavIC observation contains non-zero L5 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  
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