Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 11:48:28.02

File Details:


Observation File: metr072l15.24o
GPS Navigation File: metr072l15.24n
GLONASS Navigation File: metr072l15.24g
Galileo Navigation File: metr072l15.24l
BeiDou Navigation File: metr072l15.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  AUBURN HILLS  METR   
Observer/Agency:  Shawn Roy  Michigan DOT   
Receiver #/Type/Vers:  1834991  LEICA GR50  4.70/7.813 
Antenna #/Type:  20031013  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  552539.804  -4663339.741  4302000.329 
Approx Position (plh):  42° 41' 5.07979" N  83° 14' 33.95163" W  261.602m 
Diff. Est-Header:  -6.7 m dX  0.4 m dY  1.6 m dZ 
Diff. Est-Header:  6.9 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 11:15:00.00 GPS 
Time of last obs:  2024/03/12 11:29:59.00 GPS 
Session length:  14.98 minutes 
GPS week:  2305, day 2 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  31 
Num SVs with nav:  80 
Total GPS orbits:  38 
Total GLONASS orbits:  29 
Total Galileo orbits:  228 
Total BeiDou orbits:  28 
SVs with obs:  G3 G4 G16 G25 G26 G28 G29 G31 G32 R5 R6 R7 R9 R15 R16 R23 R24 E2 E7 E8 E21 E27 E30 E33 C19 C20 C21 C22 C36 C45 C46  
SVs without obs:  G1 G2 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G17 G18 G19 G20 G21 G22 G23 G24 G27 G30 R1 R2 R3 R4 R8 R10 R11 R12 R13 R14 R17 R18 R19 R20 R21 R22 E1 E3 E4 E5 E6 E9 E10 E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E22 E23 E24 E25 E26 E28 E29 E31 E32 E34 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C37 C38 C39 C40 C41 C42 C43 C44 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 I1 I2 I3 I4 I5 I6 I7 I8 I9  
SVs with nav:  G2 G3 G4 G5 G6 G8 G10 G12 G13 G15 G16 G18 G21 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R2 R3 R4 R5 R6 R7 R9 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 E2 E3 E5 E7 E8 E10 E13 E15 E21 E24 E25 E26 E27 E30 E33 E34 C12 C19 C20 C21 C22 C23 C25 C27 C28 C29 C30 C32 C35 C36 C37 C40 C41 C44 C45 C46  
SVs without nav:  G1 G7 G9 G11 G14 G17 G19 G20 G22 R1 R8 R10 E1 E4 E6 E9 E11 E12 E14 E16 E17 E18 E19 E20 E22 E23 E28 E29 E31 E32 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C13 C14 C15 C16 C17 C18 C24 C26 C31 C33 C34 C38 C39 C42 C43 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63  
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 0 slips, Threshold 13 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.02m MP2 / 0.02m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 32 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.02m MP2, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 20 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.02m MP5a / 0.02m MP5b / 0.01m MP5a+b, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 30 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.02m MP3, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  24862 
Num possible obs > 0°:  30032 
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 

Epochs with < 5 SV > 15°:  0  (0.0 %) 
Epochs with all SV > 15°:  900  (100.0 %) 
Epochs with full data > 15°:  0  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.8  3.0  2.9 
GDOP  3.4  3.8  3.6 

Data Gaps 
Num epochs with data:  900 
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:  0.000008 ms (at 2024/03/12 11:20:44.00) 
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  BeiDou  QZSS  NavIC 
Tracking information over 0° 
Num obs > 0°:  24862  7281  6510  5115  5956  -  - 
Num possible obs > 0°:  30032  7815  7174  7057  7986  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  -  -  -  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  20462  6638  5400  3347  5077  -  - 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 %  -  - 
Num possible obs > 15°:  20462  6638  5400  3347  5077  -  - 
Num complete obs > 15°:  6638  6638  -  -  -  -  - 
% complete obs > 15°:   32.4 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  22.7   7.4   6.0   3.7   5.6   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.776   1.864   1.667   -  -  -  - 
Obs E5b/B2I:  1.000   -  -  1.000   -  -  - 
Obs L5/E5a/B2a:  0.730   0.593   -  1.000   -  -  - 
Obs E5a+b/B2a+b:  1.000   -  -  1.000   -  -  - 
Obs L6/E6/B3I/G2a:  1.000   -  -  -  1.000   -  - 
Obs G3:  -  -  -  -  -  -  - 

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

Multipath               
MP (L1/E1/B1I) RMS:  0.015 m  0.020 m  0.012 m  0.013 m  0.013 m  -  - 
MP (L2/B1C) RMS:  0.020 m  0.022 m  0.016 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.022 m  0.022 m  -  0.023 m  -  -  - 
MP (E5b/B2I) RMS:  0.022 m  -  -  0.022 m  -  -  - 
MP (E5a+b/B2a+b) RMS:  0.014 m  -  -  0.014 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.019 m  -  -  -  0.019 m  -  - 
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 83.3 %
83.3 %
83.3 %
83.3 %
L2P 83.3 %
83.3 %
83.3 %
83.3 %
L2S 86.4 %
86.4 %
86.4 %
86.4 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 73.0 %
73.0 %
73.0 %
73.0 %
L7Q 100.0 %
100.0 %
100.0 %
100.0 %
L8Q 100.0 %
100.0 %
100.0 %
100.0 %
L6I 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
G3 47.00° 49.03° 900 900 (100.0 %)
0 (0.0 %) 0
G4 36.24° 42.49° 900 900 (100.0 %)
0 (0.0 %) 0
G16 39.31° 46.90° 900 900 (100.0 %)
0 (0.0 %) 0
G26 71.22° 75.68° 900 900 (100.0 %)
0 (0.0 %) 0
G28 36.99° 42.49° 900 900 (100.0 %)
0 (0.0 %) 0
G29 15.96° 16.61° 900 900 (100.0 %)
0 (0.0 %) 0
G31 63.43° 68.92° 900 900 (100.0 %)
0 (0.0 %) 0
G32 15.00° 17.13° 338 338 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R5 33.74° 41.43° 900 900 (100.0 %)
0 (0.0 %) 0
R6 68.73° 76.29° 900 900 (100.0 %)
0 (0.0 %) 0
R7 17.48° 24.49° 900 900 (100.0 %)
0 (0.0 %) 0
R9 25.01° 31.52° 900 900 (100.0 %)
0 (0.0 %) 0
R15 30.75° 37.98° 900 900 (100.0 %)
0 (0.0 %) 0
R16 79.56° 80.68° 900 900 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E7 66.21° 70.98° 900 900 (100.0 %)
0 (0.0 %) 0
E8 15.00° 18.11° 647 647 (100.0 %)
0 (0.0 %) 0
E27 50.42° 56.68° 900 900 (100.0 %)
0 (0.0 %) 0
E30 57.91° 61.01° 900 900 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C19 45.53° 52.45° 900 900 (100.0 %)
0 (0.0 %) 0
C21 15.00° 18.32° 577 577 (100.0 %)
0 (0.0 %) 0
C22 61.00° 64.06° 900 900 (100.0 %)
0 (0.0 %) 0
C36 75.88° 81.00° 900 900 (100.0 %)
0 (0.0 %) 0
C45 21.92° 27.04° 900 900 (100.0 %)
0 (0.0 %) 0
C46 43.48° 49.19° 900 900 (100.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV GPS Observations Missing L1C Missing L2S Missing L2W Missing L5Q
G3 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G4 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G16 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G26 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G28 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G29 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G31 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G32 1.7 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R5 4.4 %
0.0 %
0.0 %
0.0 %
R6 4.4 %
0.0 %
100.0 %
100.0 %
R7 4.4 %
0.0 %
0.0 %
0.0 %
R9 4.4 %
0.0 %
0.0 %
0.0 %
R15 4.4 %
0.0 %
0.0 %
0.0 %
R16 4.4 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E7 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E8 3.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E27 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E30 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L6I
C19 4.4 %
0.0 %
0.0 %
C21 2.8 %
0.0 %
0.0 %
C22 4.4 %
0.0 %
0.0 %
C36 4.4 %
0.0 %
0.0 %
C45 4.4 %
0.0 %
0.0 %
C46 4.4 %
0.0 %
0.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G3 0.0 %
0.0 %
0.0 %
0.0 %
G4 0.0 %
0.0 %
0.0 %
0.0 %
G16 0.0 %
100.0 %
0.0 %
100.0 %
G26 0.0 %
0.0 %
0.0 %
0.0 %
G28 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
R5 0.0 %
0.0 %
0.0 %
R6 0.0 %
100.0 %
100.0 %
R7 0.0 %
0.0 %
0.0 %
R9 0.0 %
0.0 %
0.0 %
R15 0.0 %
0.0 %
0.0 %
R16 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 %
E8 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 C6I
C19 0.0 %
0.0 %
C21 0.0 %
0.0 %
C22 0.0 %
0.0 %
C36 0.0 %
0.0 %
C45 0.0 %
0.0 %
C46 0.0 %
0.0 %

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
4.7 %
75 - 80 0
0
0
0
0
0
5.8 %
70 - 75 0
0
0
0
0
0
7.3 %
65 - 70 0
0
0
0
0
0
7.3 %
60 - 65 0
0
0
0
0
0
7.3 %
55 - 60 0
0
0
0
0
0
4.0 %
50 - 55 0
0
0
0
0
0
4.8 %
45 - 50 0
0
0
0
0
0
11.5 %
40 - 45 0
0
0
0
0
0
8.6 %
35 - 40 0
0
0
0
0
0
10.1 %
30 - 35 0
0
0
0
0
0
4.4 %
25 - 30 0
0
0
0
0
0
5.1 %
20 - 25 0
0
0
0
0
0
5.4 %
15 - 20 0
0
0
0
0
0
13.6 %
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
G3 50.5
50.5
55.9
G4 47.1
50.1
52.7
G16 48.7
46.6
-
G26 54.1
54.3
58.9
G28 47.6
50.5
53.5
G29 39.6
42.6
-
G31 53.2
53.7
-
G32 40.9
42.7
45.7
Average GPS: 47.7
48.9
53.3

SV GLONASS G1 G2
R5 49.5
48.1
R6 42.7
-
R7 43.6
43.5
R9 46.4
45.7
R15 49.5
46.6
R16 55.0
52.6
Average GLONASS: 47.8
47.3

SV Galileo E1 E5a E5b E5a+b
E7 54.3
56.4
56.9
59.8
E8 41.6
44.7
45.3
48.2
E27 52.7
54.6
54.9
57.9
E30 53.9
55.5
55.9
58.9
Average Galileo: 50.6
52.8
53.3
56.2

SV BeiDou B1I B3I
C19 50.9
52.1
C21 41.1
43.7
C22 53.9
53.8
C36 54.0
54.8
C45 43.5
45.7
C46 50.1
51.2
Average BeiDou: 48.9
50.2

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G3 48.0 ° 0.01 m
0.01 m
0.01 m
G4 39.4 ° 0.01 m
0.02 m
0.02 m
G16 43.1 ° 0.01 m
0.02 m
-
G26 73.4 ° 0.01 m
0.03 m
0.05 m
G28 39.7 ° 0.01 m
0.01 m
0.02 m
G29 16.3 ° 0.07 m
0.03 m
-
G31 66.2 ° 0.01 m
0.02 m
-
G32 16.1 ° 0.02 m
0.03 m
0.01 m
Average GPS: - 0.02 m
0.02 m
0.02 m

SV GLONASS Av Elev MP (G1) MP (G2)
R5 37.6 ° 0.01 m
0.02 m
R6 - - -
R7 21.0 ° 0.02 m
0.02 m
R9 28.3 ° 0.01 m
0.02 m
R15 34.4 ° 0.01 m
0.02 m
R16 80.1 ° 0.02 m
0.01 m
Average GLONASS: - 0.01 m
0.02 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E7 68.6 ° 0.01 m
0.02 m
0.03 m
0.02 m
E8 16.6 ° 0.02 m
0.02 m
0.03 m
0.02 m
E27 53.5 ° 0.01 m
0.01 m
0.01 m
0.01 m
E30 59.5 ° 0.01 m
0.03 m
0.02 m
0.01 m
Average Galileo: - 0.01 m
0.02 m
0.02 m
0.01 m

SV BeiDou Av Elev MP (B1I) MP (B3I)
C19 49.0 ° 0.01 m
0.01 m
C21 16.7 ° 0.02 m
0.02 m
C22 62.5 ° 0.01 m
0.02 m
C36 78.4 ° 0.01 m
0.02 m
C45 24.5 ° 0.01 m
0.02 m
C46 46.3 ° 0.01 m
0.02 m
Average BeiDou: - 0.01 m
0.02 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 0.02 m
0.01 m
- - - 0.02 m
-
75 - 80 0.01 m
0.03 m
0.07 m
- - 0.02 m
-
70 - 75 0.01 m
0.03 m
0.04 m
0.05 m
0.01 m
- -
65 - 70 0.01 m
0.02 m
0.02 m
0.03 m
0.02 m
- -
60 - 65 0.01 m
0.03 m
0.04 m
0.02 m
0.01 m
0.02 m
-
55 - 60 0.01 m
- 0.02 m
0.01 m
0.01 m
- -
50 - 55 0.01 m
- 0.02 m
0.01 m
0.01 m
0.01 m
-
45 - 50 0.01 m
0.01 m
0.01 m
- - 0.01 m
-
40 - 45 0.01 m
0.01 m
0.01 m
- - 0.02 m
-
35 - 40 0.01 m
0.02 m
0.02 m
- - - -
30 - 35 0.01 m
0.02 m
- - - - -
25 - 30 0.01 m
0.02 m
- - - 0.03 m
-
20 - 25 0.02 m
0.01 m
- - - 0.02 m
-
15 - 20 0.04 m
0.03 m
0.02 m
0.03 m
0.02 m
0.02 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 2024/03/12 11:29:59.00

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, L2 code and phase measurements with a SNR of at least 0 
(#)  A complete GLONASS observation contains non-zero G1, G2, G2a code and phase measurements with a SNR of at least 0 
(#)  A complete Galileo observation contains non-zero E1, E5a, E5b, E5a+b, E6 code and phase measurements with a SNR of at least 0 
(#)  A complete BeiDou observation contains non-zero B1I, B1C, B2a, B2I, B2a+b code and phase measurements with a SNR of at least 0 
(#)  A complete QZSS observation contains non-zero code and phase measurements with a SNR of at least 0 
(#)  A complete NavIC 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  
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