Leica SpiderQC v7.5 Quality Report


Program Run: 2021/11/02 06:01:24.86

File Details:


Observation File: algc306f.21o
GPS Navigation File: algc306f.21n
GLONASS Navigation File: algc306f.21g
Galileo Navigation File: algc306f.21l
BeiDou Navigation File: algc306f.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:  1.4 m dX  -6.6 m dY  2.0 m dZ 
Diff. Est-Header:  7.0 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/11/02 05:00:00.00 GPS 
Time of last obs:  2021/11/02 05:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2182, day 2 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  39 
Num SVs with nav:  101 
Total GPS orbits:  33 
Total GLONASS orbits:  39 
Total Galileo orbits:  131 
Total BeiDou orbits:  34 
Total QZSS orbits: 
Total NavIC orbits: 
SVs with obs:  G1 G8 G10 G14 G16 G17 G21 G22 G27 G32 R4 R5 R6 R7 R10 R12 R19 R20 R21 E1 E7 E8 E12 E19 E24 E26 E31 E33 C5 C6 C9 C11 C12 C14 C16 C21 C23 C27 C28  
SVs without obs:  G2 G3 G4 G5 G6 G7 G9 G11 G12 G13 G15 G18 G19 G20 G23 G24 G25 G26 G28 G29 G30 G31 R1 R2 R3 R8 R9 R11 R13 R14 R15 R16 R17 R18 R22 R23 R24 E2 E3 E4 E5 E6 E9 E10 E11 E13 E14 E15 E16 E17 E18 E20 E21 E22 E23 E25 E27 E28 E29 E30 E32 E34 E35 E36 C1 C2 C3 C4 C7 C8 C10 C13 C15 C17 C18 C19 C20 C22 C24 C25 C26 C29 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 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:  R11 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 2 slips, Threshold 52 slips 
Multipath:  Pass  Value 0.10m MP1 / 0.08m MP2 / 0.17m 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 95 slips 
Multipath:  Pass  Value 0.08m MP1 / 0.13m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Fail   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 9 slips, Threshold 143 slips 
Multipath:  Pass  Value 0.09m MP1 / 0.14m MP5a / 0.14m MP5b / 0.05m MP5a+b, Threshold 0.5 m 
Data Completeness:  Pass  Value 91.8 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 74 slips 
Multipath:  Pass  Value 0.13m MP1 / 0.13m MP2b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  115773 
Num possible obs > 0°:  125363 
Num obs with invalid nav: 
Num obs without nav:  283 
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°:  1481  (41.1 %) 
Epochs with full data > 15°:  1476  (41.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.2  2.7  2.5 
GDOP  2.7  3.4  3.1 

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 
E12  24.117  1 / 1448  16.78° / 21.69°  276.20° / 284.19° 
E19  11.167  1880 / 2550  15.00° / 18.85°  171.29° / 170.17° 
Total:  35.283 (2117 observations) 

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000018 ms (at 2021/11/02 05:58:18.00) 
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°:  115773  32510  25474  25985  31804 
Num possible obs > 0°:  125363  32929  26935  30454  35045 
Num obs with invalid nav: 
Num obs without nav:  283  283 
Num obs to unhealthy SV: 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  77945  25899  15769  23866  12411 
% obs > 15°:   97.4 %  100.0 %  100.0 %  91.8 %  100.0 % 
Num possible obs > 15°:  80064  25899  15769  25985  12411 
Num complete obs > 15°:  77940  25899  15769  23861  12411 
% complete obs > 15°:   97.3 %  100.0 %  100.0 %  91.8 %  100.0 % 
Num obs with WLF change:  
Average # SV per Epoch:  21.7   7.2   4.4   6.6   3.4  
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.619   1.706   1.476  
Obs E5b/B2I:  0.856   1.000   0.580  
Obs L5/E5a/B2a:  0.847   0.706   1.000  
Obs E5a+b/B2a+b:  1.000   1.000  
Obs L6/E6/B3I/G2a: 
Obs G3: 

Cycle Slips               
Num cycle slips > 15°:  11 
% slips per complete obs:  0.014 %  0.008 %  0.038 % 
Num complete obs per slip:  7085   12949   2651  
IOD Slips > 15°: 
Outliers > 15°: 
LLI : Obs L1/E1/B1I:  0.0001   0.0002  
LLI : Obs L2/B1C: 
LLI : Obs E5b/B2I:  0.0001   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:  0.098 m  0.097 m  0.082 m  0.088 m  0.131 m 
MP (L2/B1C) RMS:  0.098 m  0.081 m  0.128 m 
MP (L5/E5a/B2a) RMS:  0.154 m  0.170 m  0.141 m 
MP (E5b/B2I) RMS:  0.139 m  0.141 m  0.129 m 
MP (E5a+b/B2a+b) RMS:  0.046 m  0.046 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 73.8 %
73.8 %
73.8 %
73.8 %
L2P 73.8 %
73.8 %
73.8 %
73.8 %
L2S 70.6 %
70.6 %
70.6 %
70.6 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 84.7 %
84.7 %
84.7 %
84.7 %
L7I 58.0 %
58.0 %
58.0 %
58.0 %
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
G1 41.46° 56.76° 3600 3600 (100.0 %)
0 (0.0 %) 0
G8 58.59° 78.92° 3600 3600 (100.0 %)
0 (0.0 %) 0
G10 15.00° 23.40° 1302 1302 (100.0 %)
0 (0.0 %) 0
G14 15.00° 24.56° 2594 2594 (100.0 %)
0 (0.0 %) 1
G16 15.01° 17.82° 403 403 (100.0 %)
0 (0.0 %) 0
G21 62.07° 65.55° 3600 3600 (100.0 %)
0 (0.0 %) 0
G22 44.95° 72.93° 3600 3600 (100.0 %)
0 (0.0 %) 1
G27 26.47° 49.19° 3600 3600 (100.0 %)
0 (0.0 %) 0
G32 22.69° 25.93° 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° 17.00° 327 327 (100.0 %)
0 (0.0 %) 0
R5 36.17° 49.73° 3600 3600 (100.0 %)
0 (0.0 %) 0
R6 29.62° 63.00° 3600 3600 (100.0 %)
0 (0.0 %) 0
R7 15.00° 19.33° 511 511 (100.0 %)
0 (0.0 %) 0
R10 15.00° 18.80° 531 531 (100.0 %)
0 (0.0 %) 0
R19 - - 0 0 (-)
283 (-) 0
R20 35.65° 46.84° 3600 3600 (100.0 %)
0 (0.0 %) 0
R21 34.08° 51.80° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E1 15.00° 32.21° 2884 2884 (100.0 %)
0 (0.0 %) 1
E7 26.28° 29.11° 3600 3600 (100.0 %)
0 (0.0 %) 0
E12 21.70° 29.32° 3600 2152 (59.8 %)
0 (0.0 %) 2
E19 18.85° 25.14° 1721 1050 (61.0 %)
0 (0.0 %) 4
E24 15.00° 21.42° 3380 3380 (100.0 %)
0 (0.0 %) 0
E26 35.02° 47.22° 3600 3600 (100.0 %)
0 (0.0 %) 2
E31 30.87° 42.04° 3600 3600 (100.0 %)
0 (0.0 %) 0
E33 58.63° 64.00° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C11 36.00° 50.94° 3600 3600 (100.0 %)
0 (0.0 %) 0
C14 53.60° 68.27° 3600 3600 (100.0 %)
0 (0.0 %) 0
C21 15.00° 21.20° 1248 1248 (100.0 %)
0 (0.0 %) 0
C23 15.00° 16.69° 363 363 (100.0 %)
0 (0.0 %) 0
C28 33.56° 53.32° 3600 3600 (100.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV GPS Observations Missing L1C Missing L2S Missing L2W Missing L5Q
G1 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
G8 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
G10 1.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G14 3.3 %
0.0 %
0.0 %
0.0 %
0.0 %
G16 0.5 %
0.0 %
100.0 %
0.0 %
100.0 %
G21 4.6 %
0.0 %
100.0 %
0.0 %
100.0 %
G22 4.6 %
0.0 %
100.0 %
0.0 %
100.0 %
G27 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
G32 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R4 0.4 %
0.0 %
0.0 %
0.0 %
R5 4.6 %
0.0 %
0.0 %
0.0 %
R6 4.6 %
0.0 %
100.0 %
100.0 %
R7 0.7 %
0.0 %
0.0 %
0.0 %
R10 0.7 %
0.0 %
100.0 %
100.0 %
R20 4.6 %
0.0 %
0.0 %
0.0 %
R21 4.6 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E1 3.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E7 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
E12 2.8 %
0.0 %
0.1 %
0.1 %
0.1 %
E19 1.3 %
0.1 %
0.2 %
0.2 %
0.2 %
E24 4.3 %
0.0 %
0.0 %
0.0 %
0.0 %
E26 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
E31 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
E33 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I
C11 4.6 %
0.0 %
0.0 %
C14 4.6 %
0.0 %
0.0 %
C21 1.6 %
0.0 %
100.0 %
C23 0.5 %
0.0 %
100.0 %
C28 4.6 %
0.0 %
100.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G1 0.0 %
0.0 %
0.0 %
0.0 %
G8 0.0 %
0.0 %
0.0 %
0.0 %
G10 0.0 %
0.0 %
0.0 %
0.0 %
G14 0.0 %
0.0 %
0.0 %
0.0 %
G16 0.0 %
100.0 %
0.0 %
100.0 %
G21 0.0 %
100.0 %
0.0 %
100.0 %
G22 0.0 %
100.0 %
0.0 %
100.0 %
G27 0.0 %
0.0 %
0.0 %
0.0 %
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 %
R6 0.0 %
100.0 %
100.0 %
R7 0.0 %
0.0 %
0.0 %
R10 0.0 %
100.0 %
100.0 %
R20 0.0 %
0.0 %
0.0 %
R21 0.0 %
0.0 %
0.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E1 0.0 %
0.0 %
0.0 %
0.0 %
E7 0.0 %
0.0 %
0.0 %
0.0 %
E12 0.0 %
0.1 %
0.1 %
0.1 %
E19 0.1 %
0.2 %
0.2 %
0.2 %
E24 0.0 %
0.0 %
0.0 %
0.0 %
E26 0.0 %
0.0 %
0.0 %
0.0 %
E31 0.0 %
0.0 %
0.0 %
0.0 %
E33 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C7I
C11 0.0 %
0.0 %
C14 0.0 %
0.0 %
C21 0.0 %
100.0 %
C23 0.0 %
100.0 %
C28 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
1.5 %
70 - 75 0
0
0
0
0
0
1.6 %
65 - 70 1
0
0
0
0
0
6.4 %
60 - 65 0
0
0
0
0
0
9.2 %
55 - 60 0
0
0
0
0
0
4.3 %
50 - 55 0
0
0
0
0
0
4.9 %
45 - 50 0
0
0
0
0
0
12.4 %
40 - 45 0
0
2
0
0
0
13.2 %
35 - 40 0
0
0
0
0
0
11.5 %
30 - 35 0
0
0
0
0
0
4.1 %
25 - 30 0
0
0
0
0
0
11.1 %
20 - 25 0
0
3
0
0
0
9.4 %
15 - 20 1
0
4
0
0
0
10.5 %
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
G1 50.5
51.9
56.1
G8 53.7
54.9
57.8
G10 41.5
43.9
46.9
G14 41.7
45.1
48.3
G16 39.4
37.1
-
G21 51.8
51.0
-
G22 51.8
50.5
-
G27 47.5
49.2
52.4
G32 44.6
45.9
48.2
Average GPS: 47.0
47.7
51.6

SV GLONASS G1 G2
R4 40.6
40.0
R5 51.0
48.2
R6 39.8
-
R7 42.3
42.0
R10 40.4
-
R20 40.4
47.3
R21 50.2
47.8
Average GLONASS: 43.6
45.1

SV Galileo E1 E5a E5b E5a+b
E1 44.1
46.8
46.8
50.1
E7 45.4
48.3
48.4
51.6
E12 40.7
44.4
44.4
47.7
E19 39.2
41.6
42.1
45.1
E24 42.6
45.6
45.6
48.9
E26 49.5
51.3
51.6
54.7
E31 48.5
50.8
50.7
54.0
E33 53.8
55.4
55.6
58.7
Average Galileo: 45.5
48.0
48.1
51.3

SV BeiDou B1I B2I
C11 48.4
51.7
C14 50.3
55.0
C21 41.3
-
C23 40.9
-
C28 50.7
-
Average BeiDou: 46.3
53.3

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G1 49.1 ° 0.03 m
0.05 m
0.08 m
G8 68.8 ° 0.04 m
0.04 m
0.06 m
G10 19.2 ° 0.12 m
0.06 m
0.17 m
G14 19.8 ° 0.19 m
0.16 m
0.25 m
G16 16.4 ° 0.09 m
0.11 m
-
G21 63.8 ° 0.05 m
0.04 m
-
G22 58.9 ° 0.06 m
0.05 m
-
G27 37.8 ° 0.08 m
0.09 m
0.21 m
G32 24.3 ° 0.22 m
0.13 m
0.25 m
Average GPS: - 0.10 m
0.08 m
0.17 m

SV GLONASS Av Elev MP (G1) MP (G2)
R4 16.0 ° 0.14 m
0.21 m
R5 42.9 ° 0.07 m
0.12 m
R6 - - -
R7 17.2 ° 0.05 m
0.09 m
R10 - - -
R20 41.2 ° 0.09 m
0.12 m
R21 42.9 ° 0.07 m
0.10 m
Average GLONASS: - 0.08 m
0.13 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E1 23.6 ° 0.08 m
0.08 m
0.08 m
0.06 m
E7 27.7 ° 0.14 m
0.20 m
0.25 m
0.04 m
E12 25.5 ° 0.07 m
0.17 m
0.16 m
0.04 m
E19 22.0 ° 0.15 m
0.14 m
0.11 m
0.10 m
E24 18.2 ° 0.18 m
0.32 m
0.32 m
0.06 m
E26 41.1 ° 0.03 m
0.11 m
0.10 m
0.02 m
E31 36.5 ° 0.04 m
0.07 m
0.06 m
0.03 m
E33 61.3 ° 0.02 m
0.05 m
0.05 m
0.01 m
Average Galileo: - 0.09 m
0.14 m
0.14 m
0.05 m

SV BeiDou Av Elev MP (B1I) MP (B2I)
C11 43.5 ° 0.09 m
0.13 m
C14 60.9 ° 0.18 m
0.13 m
C21 18.1 ° 0.19 m
-
C23 15.8 ° 0.07 m
-
C28 43.4 ° 0.12 m
-
Average BeiDou: - 0.13 m
0.13 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 0.02 m
0.02 m
0.06 m
- - - -
70 - 75 0.05 m
0.03 m
0.05 m
- - - -
65 - 70 0.10 m
0.04 m
0.06 m
0.12 m
- - -
60 - 65 0.04 m
0.05 m
0.06 m
0.05 m
0.01 m
- -
55 - 60 0.10 m
0.05 m
0.06 m
0.12 m
0.01 m
- -
50 - 55 0.09 m
0.05 m
0.08 m
0.19 m
- - -
45 - 50 0.07 m
0.09 m
0.12 m
0.10 m
0.02 m
- -
40 - 45 0.06 m
0.10 m
0.13 m
0.11 m
0.02 m
- -
35 - 40 0.07 m
0.12 m
0.10 m
0.10 m
0.03 m
- -
30 - 35 0.10 m
0.08 m
0.09 m
0.05 m
0.04 m
- -
25 - 30 0.13 m
0.12 m
0.20 m
0.21 m
0.04 m
- -
20 - 25 0.17 m
0.15 m
0.22 m
0.20 m
0.06 m
- -
15 - 20 0.15 m
0.11 m
0.23 m
0.24 m
0.07 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 R19 starting 2021/11/02 05:01:00.00.
- Updated header information or comments after epoch 2021/11/02 05:59:59.00

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