Leica SpiderQC v7.5 Quality Report


Program Run: 2021/08/02 02:01:25.75

File Details:


Observation File: algc214b.21o
GPS Navigation File: algc214b.21n
GLONASS Navigation File: algc214b.21g
Galileo Navigation File: algc214b.21l
BeiDou Navigation File: algc214b.21f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  ALGC  13456M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1832466  LEICA GR50  4.31/7.403 
Antenna #/Type:  2110213  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5135570.619  -489449.771  3738221.713 
Approx Position (plh):  36° 06' 39.74829" N  5° 26' 39.03897" W  117.170m 
Diff. Est-Header:  2.4 m dX  -3.2 m dY  3.9 m dZ 
Diff. Est-Header:  5.6 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/08/02 01:00:00.00 GPS 
Time of last obs:  2021/08/02 01:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2169, day 1 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  38 
Num SVs with nav:  102 
Total GPS orbits:  37 
Total GLONASS orbits:  41 
Total Galileo orbits:  99 
Total BeiDou orbits:  30 
Total QZSS orbits: 
Total NavIC orbits: 
SVs with obs:  G2 G6 G10 G12 G13 G15 G17 G19 G23 G24 G25 G29 G32 R1 R6 R7 R8 R9 R10 R16 R18 R19 E3 E4 E5 E9 E24 E25 E31 E33 C5 C12 C14 C21 C24 C25 C26 C29  
SVs without obs:  G1 G3 G4 G5 G7 G8 G9 G11 G14 G16 G18 G20 G21 G22 G26 G27 G28 G30 G31 R2 R3 R4 R5 R11 R12 R13 R14 R15 R17 R20 R21 R22 R23 R24 E1 E2 E6 E7 E8 E10 E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E26 E27 E28 E29 E30 E32 E34 E35 E36 C1 C2 C3 C4 C6 C7 C8 C9 C10 C11 C13 C15 C16 C17 C18 C19 C20 C22 C23 C27 C28 C30 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 E18 E19 E21 E24 E25 E26 E27 E30 E31 E33 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C16 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30  
SVs without nav:  E6 E10 E16 E17 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C15 C17 C18 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 54 slips 
Multipath:  Pass  Value 0.10m MP1 / 0.10m MP2 / 0.12m 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 118 slips 
Multipath:  Pass  Value 0.11m MP1 / 0.17m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 95.6 %, Threshold 90.0 % 
Navigation Data:  Fail   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 3 slips, Threshold 130 slips 
Multipath:  Pass  Value 0.07m MP1 / 0.13m MP5a / 0.12m MP5b / 0.05m MP5a+b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 1 slips, Threshold 78 slips 
Multipath:  Pass  Value 0.21m MP1 / 0.08m MP2b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  117651 
Num possible obs > 0°:  123304 
Num obs with invalid nav: 
Num obs without nav:  28 
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°:  2703  (75.1 %) 
Epochs with full data > 15°:  2703  (75.1 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.2  2.6  2.3 
GDOP  2.6  3.2  2.8 

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 
R19  14.933  1 / 897  17.97° / 22.02°  91.79° / 84.41° 
Total:  14.933 (896 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000027 ms (at 2021/08/02 01:43:57.00) 
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°:  117651  38956  28880  25472  24343 
Num possible obs > 0°:  123304  40605  31090  25669  25940 
Num obs with invalid nav: 
Num obs without nav:  28  28 
Num obs to unhealthy SV: 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  81556  27188  19709  21600  13059 
% obs > 15°:   98.9 %  100.0 %  95.6 %  100.0 %  100.0 % 
Num possible obs > 15°:  82454  27188  20607  21600  13059 
Num complete obs > 15°:  81551  27188  19704  21600  13059 
% complete obs > 15°:   98.9 %  100.0 %  95.6 %  100.0 %  100.0 % 
Num obs with WLF change:  
Average # SV per Epoch:  22.7   7.6   5.5   6.0   3.6  
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.753   1.891   1.564  
Obs E5b/B2I:  0.735   1.000   0.296  
Obs L5/E5a/B2a:  0.778   0.601   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:  0.011 %  0.025 %  0.014 %  0.008 % 
Num complete obs per slip:  9061   3940   7200   13059  
IOD Slips > 15°: 
Outliers > 15°: 
LLI : Obs L1/E1/B1I:  0.0000   0.0002  
LLI : Obs L2/B1C:  0.0000   0.0000  
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:  0.119 m  0.098 m  0.113 m  0.067 m  0.213 m 
MP (L2/B1C) RMS:  0.128 m  0.104 m  0.169 m 
MP (L5/E5a/B2a) RMS:  0.128 m  0.125 m  0.131 m 
MP (E5b/B2I) RMS:  0.110 m  0.119 m  0.082 m 
MP (E5a+b/B2a+b) RMS:  0.045 m  0.045 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 78.2 %
78.2 %
78.2 %
78.2 %
L2P 78.2 %
78.2 %
78.2 %
78.2 %
L2S 89.1 %
89.1 %
89.1 %
89.1 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 77.8 %
77.8 %
77.8 %
77.8 %
L7I 29.6 %
29.6 %
29.6 %
29.6 %
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
G10 15.00° 24.74° 3573 3573 (100.0 %)
0 (0.0 %) 0
G12 72.29° 80.17° 3600 3600 (100.0 %)
0 (0.0 %) 0
G13 15.00° 16.95° 303 303 (100.0 %)
0 (0.0 %) 0
G15 15.90° 42.28° 3600 3600 (100.0 %)
0 (0.0 %) 0
G19 15.00° 25.68° 2667 2667 (100.0 %)
0 (0.0 %) 0
G23 15.00° 26.32° 2269 2269 (100.0 %)
0 (0.0 %) 0
G24 53.53° 66.68° 3600 3600 (100.0 %)
0 (0.0 %) 0
G25 36.84° 58.45° 3600 3600 (100.0 %)
0 (0.0 %) 0
G29 15.00° 19.84° 667 667 (100.0 %)
0 (0.0 %) 0
G32 15.01° 35.57° 3309 3309 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R1 15.00° 24.50° 1685 1685 (100.0 %)
0 (0.0 %) 0
R6 15.00° 20.98° 701 700 (99.9 %)
28 (4.0 %) 2
R7 29.52° 61.21° 3600 3600 (100.0 %)
0 (0.0 %) 1
R8 41.11° 49.86° 3600 3600 (100.0 %)
0 (0.0 %) 0
R9 36.63° 53.60° 3600 3600 (100.0 %)
0 (0.0 %) 0
R10 43.11° 51.96° 3600 3600 (100.0 %)
0 (0.0 %) 0
R16 15.00° 16.19° 221 221 (100.0 %)
0 (0.0 %) 0
R19 22.03° 27.66° 3600 2703 (75.1 %)
0 (0.0 %) 2

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E3 16.48° 32.73° 3600 3600 (100.0 %)
0 (0.0 %) 0
E5 60.26° 66.32° 3600 3600 (100.0 %)
0 (0.0 %) 2
E9 27.06° 50.99° 3600 3600 (100.0 %)
0 (0.0 %) 0
E24 64.75° 76.65° 3600 3600 (100.0 %)
0 (0.0 %) 0
E25 28.95° 42.94° 3600 3600 (100.0 %)
0 (0.0 %) 0
E31 22.07° 38.82° 3600 3600 (100.0 %)
0 (0.0 %) 1

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C12 15.00° 16.66° 263 263 (100.0 %)
0 (0.0 %) 0
C14 34.51° 45.03° 3600 3600 (100.0 %)
0 (0.0 %) 1
C21 15.00° 20.01° 770 770 (100.0 %)
0 (0.0 %) 0
C24 41.26° 55.70° 3600 3600 (100.0 %)
0 (0.0 %) 0
C26 55.02° 66.26° 3600 3600 (100.0 %)
0 (0.0 %) 0
C29 15.00° 16.80° 1226 1226 (100.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV GPS Observations Missing L1C Missing L2S Missing L2W Missing L5Q
G10 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G12 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G13 0.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G15 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 3.3 %
0.0 %
100.0 %
0.0 %
100.0 %
G23 2.8 %
0.0 %
0.0 %
0.0 %
0.0 %
G24 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G25 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G29 0.8 %
0.0 %
0.0 %
0.0 %
100.0 %
G32 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R1 2.1 %
0.0 %
0.0 %
0.0 %
R6 0.9 %
0.7 %
100.0 %
100.0 %
R7 4.4 %
0.0 %
0.0 %
0.0 %
R8 4.4 %
0.0 %
0.0 %
0.0 %
R9 4.4 %
0.0 %
0.0 %
0.0 %
R10 4.4 %
0.0 %
100.0 %
100.0 %
R16 0.3 %
0.0 %
0.0 %
0.0 %
R19 3.3 %
0.0 %
0.1 %
0.1 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E3 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E5 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E9 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E24 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E25 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E31 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I
C12 0.3 %
0.0 %
0.0 %
C14 4.4 %
0.0 %
0.0 %
C21 0.9 %
0.0 %
100.0 %
C24 4.4 %
0.0 %
100.0 %
C26 4.4 %
0.0 %
100.0 %
C29 1.5 %
0.0 %
100.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G10 0.0 %
0.0 %
0.0 %
0.0 %
G12 0.0 %
0.0 %
0.0 %
100.0 %
G13 0.0 %
100.0 %
0.0 %
100.0 %
G15 0.0 %
0.0 %
0.0 %
100.0 %
G19 0.0 %
100.0 %
0.0 %
100.0 %
G23 0.0 %
0.0 %
0.0 %
0.0 %
G24 0.0 %
0.0 %
0.0 %
0.0 %
G25 0.0 %
0.0 %
0.0 %
0.0 %
G29 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
R1 0.0 %
0.0 %
0.0 %
R6 0.0 %
100.0 %
100.0 %
R7 0.0 %
0.0 %
0.0 %
R8 0.0 %
0.0 %
0.0 %
R9 0.0 %
0.0 %
0.0 %
R10 0.0 %
100.0 %
100.0 %
R16 0.0 %
0.0 %
0.0 %
R19 0.0 %
0.0 %
0.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E3 0.0 %
0.0 %
0.0 %
0.0 %
E5 0.0 %
0.0 %
0.0 %
0.0 %
E9 0.0 %
0.0 %
0.0 %
0.0 %
E24 0.0 %
0.0 %
0.0 %
0.0 %
E25 0.0 %
0.0 %
0.0 %
0.0 %
E31 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C7I
C12 0.0 %
0.0 %
C14 0.0 %
0.0 %
C21 0.0 %
100.0 %
C24 0.0 %
100.0 %
C26 0.0 %
100.0 %
C29 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
0.6 %
75 - 80 0
0
0
0
0
0
3.9 %
70 - 75 0
0
0
0
0
0
2.7 %
65 - 70 0
0
0
0
0
0
5.7 %
60 - 65 0
0
2
0
0
0
5.9 %
55 - 60 0
0
0
0
0
0
4.9 %
50 - 55 0
0
0
0
0
0
6.3 %
45 - 50 0
0
0
0
0
0
11.3 %
40 - 45 0
0
0
0
0
0
10.6 %
35 - 40 0
0
0
1
0
0
8.0 %
30 - 35 0
1
0
0
0
0
7.2 %
25 - 30 0
0
0
0
0
0
8.4 %
20 - 25 0
2
1
0
0
0
11.8 %
15 - 20 0
2
0
0
0
0
12.7 %
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
G10 42.9
45.1
47.8
G12 54.8
54.5
-
G13 39.6
36.4
-
G15 45.3
44.6
-
G19 41.6
40.9
-
G23 41.9
45.1
48.7
G24 52.5
54.2
58.1
G25 50.1
50.8
55.2
G29 41.7
41.8
-
G32 44.6
45.8
48.8
Average GPS: 45.5
45.9
51.7

SV GLONASS G1 G2
R1 40.2
36.4
R6 32.0
-
R7 50.6
48.6
R8 50.2
48.5
R9 50.6
48.8
R10 49.9
-
R16 37.3
35.1
R19 35.8
40.8
Average GLONASS: 43.3
43.0

SV Galileo E1 E5a E5b E5a+b
E3 44.8
47.6
47.9
50.9
E5 54.7
55.9
56.4
59.3
E9 49.6
51.4
51.6
54.7
E24 55.0
56.2
56.7
59.6
E25 48.6
51.0
51.0
54.2
E31 46.3
48.6
48.7
51.9
Average Galileo: 49.8
51.8
52.1
55.1

SV BeiDou B1I B2I
C12 36.9
43.3
C14 47.2
51.5
C21 41.9
-
C24 51.8
-
C26 53.2
-
C29 40.2
-
Average BeiDou: 45.2
47.4

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G10 19.9 ° 0.07 m
0.09 m
0.13 m
G12 76.2 ° 0.03 m
0.03 m
-
G13 16.0 ° 0.11 m
0.13 m
-
G15 29.1 ° 0.11 m
0.10 m
-
G19 20.3 ° 0.17 m
0.19 m
-
G23 20.7 ° 0.10 m
0.11 m
0.10 m
G24 60.1 ° 0.05 m
0.03 m
0.08 m
G25 47.6 ° 0.05 m
0.05 m
0.08 m
G29 17.4 ° 0.12 m
0.18 m
-
G32 25.3 ° 0.16 m
0.13 m
0.23 m
Average GPS: - 0.10 m
0.10 m
0.12 m

SV GLONASS Av Elev MP (G1) MP (G2)
R1 19.8 ° 0.15 m
0.25 m
R6 - - -
R7 45.4 ° 0.08 m
0.11 m
R8 45.5 ° 0.05 m
0.08 m
R9 45.1 ° 0.05 m
0.10 m
R10 - - -
R16 15.6 ° 0.14 m
0.24 m
R19 24.8 ° 0.21 m
0.23 m
Average GLONASS: - 0.11 m
0.17 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E3 24.6 ° 0.16 m
0.32 m
0.24 m
0.07 m
E5 63.3 ° 0.04 m
0.08 m
0.10 m
0.03 m
E9 39.0 ° 0.08 m
0.14 m
0.13 m
0.08 m
E24 70.7 ° 0.02 m
0.05 m
0.05 m
0.01 m
E25 35.9 ° 0.05 m
0.07 m
0.08 m
0.04 m
E31 30.4 ° 0.05 m
0.13 m
0.11 m
0.03 m
Average Galileo: - 0.07 m
0.13 m
0.12 m
0.05 m

SV BeiDou Av Elev MP (B1I) MP (B2I)
C12 15.8 ° 0.15 m
0.09 m
C14 39.8 ° 0.07 m
0.07 m
C21 17.5 ° 0.33 m
-
C24 48.5 ° 0.31 m
-
C26 60.6 ° 0.04 m
-
C29 15.9 ° 0.37 m
-
Average BeiDou: - 0.21 m
0.08 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
0.03 m
- - - - -
75 - 80 0.03 m
0.03 m
0.05 m
0.05 m
0.01 m
- -
70 - 75 0.03 m
0.03 m
0.05 m
0.04 m
0.01 m
- -
65 - 70 0.03 m
0.03 m
0.05 m
0.06 m
0.02 m
- -
60 - 65 0.04 m
0.04 m
0.12 m
0.15 m
0.06 m
- -
55 - 60 0.06 m
0.05 m
0.07 m
- - - -
50 - 55 0.12 m
0.05 m
0.05 m
0.13 m
0.04 m
- -
45 - 50 0.07 m
0.09 m
0.06 m
0.09 m
0.04 m
- -
40 - 45 0.12 m
0.09 m
0.12 m
0.08 m
0.06 m
- -
35 - 40 0.07 m
0.10 m
0.10 m
0.08 m
0.04 m
- -
30 - 35 0.08 m
0.09 m
0.14 m
0.14 m
0.06 m
- -
25 - 30 0.14 m
0.16 m
0.19 m
0.16 m
0.06 m
- -
20 - 25 0.13 m
0.15 m
0.21 m
0.23 m
0.06 m
- -
15 - 20 0.19 m
0.17 m
0.18 m
0.23 m
0.08 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:


- Orbit missing or expired for SV R6 starting 2021/08/02 01:31:13.00.
- Updated header information or comments after epoch 2021/08/02 01:59:59.00

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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This file was processed using version 7.5.2.8679