Leica SpiderQC v7.7 Quality Report


Program Run: 2022/01/20 15:01:39.82

File Details:


Observation File: mlga020o.22o
GPS Navigation File: mlga020o.22n
GLONASS Navigation File: mlga020o.22g
Galileo Navigation File: mlga020o.22l
BeiDou Navigation File: mlga020o.22f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  MLGA  13460M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1834192  LEICA GR50  4.31/7.403 
Antenna #/Type:  23035023  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.077  0.000  0.000 
Approx Position (XYZ):  5103686.778  -395880.368  3792209.003 
Approx Position (plh):  36° 42' 56.14758" N  4° 26' 7.47844" W  115.740m 
Diff. Est-Header:  4.4 m dX  -4.0 m dY  4.9 m dZ 
Diff. Est-Header:  7.7 m (3600 estimates) 

Session Summary:


Time of first obs:  2022/01/20 14:00:00.00 GPS 
Time of last obs:  2022/01/20 14:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2193, day 4 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  40 
Num SVs with nav:  100 
Total GPS orbits:  44 
Total GLONASS orbits:  43 
Total Galileo orbits:  100 
Total BeiDou orbits:  31 
Total QZSS orbits: 
Total NavIC orbits: 
SVs with obs:  G2 G6 G10 G12 G13 G15 G19 G23 G24 G25 G29 G31 G32 R3 R4 R5 R12 R13 R14 R15 R17 R22 R23 R24 E2 E7 E8 E15 E21 E27 E30 E36 C5 C11 C13 C19 C20 C23 C27 C28  
SVs without obs:  G1 G3 G4 G5 G7 G8 G9 G11 G14 G16 G17 G18 G20 G21 G22 G26 G27 G28 G30 R1 R2 R6 R7 R8 R9 R10 R11 R16 R18 R19 R20 R21 E1 E3 E4 E5 E6 E9 E10 E11 E12 E13 E14 E16 E17 E18 E19 E20 E22 E23 E24 E25 E26 E28 E29 E31 E32 E33 E34 E35 C1 C2 C3 C4 C6 C7 C8 C9 C10 C12 C14 C15 C16 C17 C18 C21 C22 C24 C25 C26 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 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  
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 E15 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 E14 E16 E17 E18 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C15 C17 C18 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63  
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 43 slips 
Multipath:  Pass  Value 0.17m MP1 / 0.25m MP2 / 0.23m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 1 slips, Threshold 160 slips 
Multipath:  Pass  Value 0.19m MP1 / 0.30m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Fail   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 86 slips 
Multipath:  Pass  Value 0.14m MP1 / 0.29m MP5a / 0.23m MP5b / 0.09m 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 0 slips, Threshold 100 slips 
Multipath:  Fail  Value 0.83m MP1 / 0.20m MP2b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  121957 
Num possible obs > 0°:  124768 
Num obs with invalid nav: 
Num obs without nav:  3612 
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°:  3600  (100.0 %) 
Epochs with full data > 15°:  3600  (100.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.7  3.5  3.2 
GDOP  3.3  4.3  4.0 

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 
None   

Receiver Clock 
Clock Slips > 15°: 
Max RX clock offset:  0.000040 ms (at 2022/01/20 14:58:17.00) 
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°:  121957  38421  32371  25186  25979 
Num possible obs > 0°:  124768  39534  33567  24845  26822 
Num obs with invalid nav: 
Num obs without nav:  3612  12  3600 
Num obs to unhealthy SV: 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  79012  21388  26723  14265  16636 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 % 
Num possible obs > 15°:  79012  21388  26723  14265  16636 
Num complete obs > 15°:  79012  21388  26723  14265  16636 
% complete obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 % 
Num obs with WLF change:  
Average # SV per Epoch:  21.9   5.9   7.4   4.0   4.6  
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.817   1.925   1.731  
Obs E5b/B2I:  0.469   1.000   0.013  
Obs L5/E5a/B2a:  0.724   0.539   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:  0.001 %  0.004 % 
Num complete obs per slip:  79012   26723  
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:  0.313 m  0.174 m  0.195 m  0.143 m  0.828 m 
MP (L2/B1C) RMS:  0.273 m  0.249 m  0.304 m 
MP (L5/E5a/B2a) RMS:  0.266 m  0.228 m  0.291 m 
MP (E5b/B2I) RMS:  0.229 m  0.234 m  0.204 m 
MP (E5a+b/B2a+b) RMS:  0.089 m  0.089 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 86.5 %
86.5 %
86.5 %
86.5 %
L2P 86.5 %
86.5 %
86.5 %
86.5 %
L2S 92.5 %
92.5 %
92.5 %
92.5 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 72.4 %
72.4 %
72.4 %
72.4 %
L7I 1.3 %
1.3 %
1.3 %
1.3 %
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 15.00° 19.91° 1423 1423 (100.0 %)
0 (0.0 %) 0
G10 15.00° 17.73° 732 732 (100.0 %)
0 (0.0 %) 0
G12 55.80° 78.10° 3600 3600 (100.0 %)
0 (0.0 %) 0
G15 15.00° 22.89° 1133 1133 (100.0 %)
0 (0.0 %) 0
G19 15.00° 15.95° 185 185 (100.0 %)
0 (0.0 %) 0
G24 42.01° 61.24° 3600 3600 (100.0 %)
0 (0.0 %) 0
G25 49.98° 66.35° 3600 3600 (100.0 %)
0 (0.0 %) 0
G29 15.00° 42.29° 3515 3515 (100.0 %)
0 (0.0 %) 0
G32 25.21° 43.64° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R3 15.01° 38.18° 2695 2695 (100.0 %)
0 (0.0 %) 0
R4 35.21° 49.56° 3600 3600 (100.0 %)
0 (0.0 %) 0
R5 15.00° 30.52° 3555 3555 (100.0 %)
0 (0.0 %) 0
R13 24.03° 40.72° 3600 3600 (100.0 %)
0 (0.0 %) 1
R14 48.42° 54.20° 3600 3600 (100.0 %)
0 (0.0 %) 0
R15 15.00° 26.39° 2473 2473 (100.0 %)
0 (0.0 %) 0
R17 - - 0 0 (-)
10 (-) 0
R22 - - 0 0 (-)
2 (-) 0
R23 29.30° 35.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
R24 16.03° 41.73° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E2 15.00° 18.53° 832 832 (100.0 %)
0 (0.0 %) 0
E7 42.79° 64.29° 3600 3600 (100.0 %)
0 (0.0 %) 0
E8 15.00° 27.23° 2005 2005 (100.0 %)
0 (0.0 %) 0
E15 15.00° 18.33° 628 628 (100.0 %)
0 (0.0 %) 0
E27 45.86° 57.34° 3600 3600 (100.0 %)
0 (0.0 %) 0
E30 48.86° 64.98° 3600 3600 (100.0 %)
0 (0.0 %) 0
E36 - - 0 0 (-)
3600 (-) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C11 15.00° 15.60° 223 223 (100.0 %)
0 (0.0 %) 0
C19 15.38° 20.20° 3600 3600 (100.0 %)
0 (0.0 %) 0
C20 23.66° 37.97° 3600 3600 (100.0 %)
0 (0.0 %) 0
C23 25.54° 41.20° 3600 3600 (100.0 %)
0 (0.0 %) 0
C27 15.00° 28.32° 2013 2013 (100.0 %)
0 (0.0 %) 0
C28 31.93° 48.74° 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
G2 1.8 %
0.0 %
100.0 %
0.0 %
100.0 %
G10 0.9 %
0.0 %
0.0 %
0.0 %
0.0 %
G12 4.6 %
0.0 %
0.0 %
0.0 %
100.0 %
G15 1.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 0.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G24 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
G25 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
G29 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G32 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R3 3.4 %
0.0 %
0.0 %
0.0 %
R4 4.6 %
0.0 %
0.0 %
0.0 %
R5 4.5 %
0.0 %
0.0 %
0.0 %
R13 4.6 %
0.0 %
0.0 %
0.0 %
R14 4.6 %
0.0 %
0.0 %
0.0 %
R15 3.1 %
0.0 %
0.0 %
0.0 %
R23 4.6 %
0.0 %
100.0 %
100.0 %
R24 4.6 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E2 1.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E7 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
E8 2.5 %
0.0 %
0.0 %
0.0 %
0.0 %
E15 0.8 %
0.0 %
0.0 %
0.0 %
0.0 %
E27 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %
E30 4.6 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I
C11 0.3 %
0.0 %
0.0 %
C19 4.6 %
0.0 %
100.0 %
C20 4.6 %
0.0 %
100.0 %
C23 4.6 %
0.0 %
100.0 %
C27 2.5 %
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
G2 0.0 %
100.0 %
0.0 %
100.0 %
G10 0.0 %
0.0 %
0.0 %
0.0 %
G12 0.0 %
0.0 %
0.0 %
100.0 %
G15 0.0 %
0.0 %
0.0 %
100.0 %
G19 0.0 %
100.0 %
0.0 %
100.0 %
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
R3 0.0 %
0.0 %
0.0 %
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 %
R23 0.0 %
100.0 %
100.0 %
R24 0.0 %
0.0 %
0.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E2 0.0 %
0.0 %
0.0 %
0.0 %
E7 0.0 %
0.0 %
0.0 %
0.0 %
E8 0.0 %
0.0 %
0.0 %
0.0 %
E15 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
C11 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 %

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
0.8 %
70 - 75 0
0
0
0
0
0
1.0 %
65 - 70 0
0
0
0
0
0
1.6 %
60 - 65 0
0
0
0
0
0
5.3 %
55 - 60 0
0
0
0
0
0
6.9 %
50 - 55 0
0
0
0
0
0
10.6 %
45 - 50 0
0
0
0
0
0
8.5 %
40 - 45 0
0
0
0
0
0
6.0 %
35 - 40 0
1
0
0
0
0
11.4 %
30 - 35 0
0
0
0
0
0
11.6 %
25 - 30 0
0
0
0
0
0
11.0 %
20 - 25 0
0
0
0
0
0
9.6 %
15 - 20 0
0
0
0
0
0
15.9 %
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 42.7
41.3
-
G10 42.1
43.6
46.6
G12 54.3
53.5
-
G15 42.6
42.4
-
G19 41.0
40.5
-
G24 51.7
53.5
57.1
G25 52.9
53.4
57.6
G29 45.7
45.4
-
G32 48.9
49.0
51.4
Average GPS: 46.9
47.0
53.2

SV GLONASS G1 G2
R3 45.7
45.6
R4 51.5
49.5
R5 46.4
45.4
R13 38.9
43.1
R14 53.4
51.3
R15 44.5
44.4
R23 47.3
-
R24 47.2
46.3
Average GLONASS: 46.9
46.5

SV Galileo E1 E5a E5b E5a+b
E2 42.9
45.7
46.8
49.1
E7 53.6
55.0
56.3
58.5
E8 44.0
46.6
47.7
50.0
E15 42.2
45.9
46.4
49.0
E27 53.3
54.6
55.7
58.0
E30 54.6
55.6
56.9
59.1
Average Galileo: 48.4
50.6
51.6
54.0

SV BeiDou B1I B2I
C11 38.1
45.2
C19 41.9
-
C20 47.5
-
C23 47.7
-
C27 44.6
-
C28 50.2
-
Average BeiDou: 45.0
45.2

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G2 17.5 ° 0.31 m
0.46 m
-
G10 16.4 ° 0.15 m
0.16 m
0.24 m
G12 67.0 ° 0.07 m
0.07 m
-
G15 18.9 ° 0.18 m
0.37 m
-
G19 15.5 ° 0.24 m
0.63 m
-
G24 51.6 ° 0.12 m
0.08 m
0.17 m
G25 58.2 ° 0.13 m
0.09 m
0.20 m
G29 28.6 ° 0.21 m
0.29 m
-
G32 34.4 ° 0.17 m
0.09 m
0.30 m
Average GPS: - 0.17 m
0.25 m
0.23 m

SV GLONASS Av Elev MP (G1) MP (G2)
R3 26.6 ° 0.22 m
0.25 m
R4 42.4 ° 0.15 m
0.24 m
R5 22.8 ° 0.18 m
0.33 m
R13 32.4 ° 0.17 m
0.47 m
R14 51.3 ° 0.11 m
0.14 m
R15 20.7 ° 0.29 m
0.32 m
R23 - - -
R24 28.9 ° 0.24 m
0.39 m
Average GLONASS: - 0.19 m
0.30 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E2 16.8 ° 0.24 m
0.47 m
0.41 m
0.19 m
E7 53.5 ° 0.11 m
0.14 m
0.20 m
0.05 m
E8 21.1 ° 0.13 m
0.27 m
0.30 m
0.08 m
E15 16.7 ° 0.22 m
0.55 m
0.22 m
0.14 m
E27 51.6 ° 0.10 m
0.18 m
0.14 m
0.03 m
E30 56.9 ° 0.07 m
0.14 m
0.13 m
0.04 m
Average Galileo: - 0.14 m
0.29 m
0.23 m
0.09 m

SV BeiDou Av Elev MP (B1I) MP (B2I)
C11 15.3 ° 0.14 m
0.20 m
C19 17.8 ° 0.32 m
-
C20 30.8 ° 0.56 m
-
C23 33.4 ° 0.69 m
-
C27 21.7 ° 2.47 m
-
C28 40.3 ° 0.78 m
-
Average BeiDou: - 0.83 m
0.20 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 0.06 m
0.08 m
- - - - -
70 - 75 0.05 m
0.07 m
- - - - -
65 - 70 0.08 m
0.11 m
0.14 m
- - - -
60 - 65 0.08 m
0.08 m
0.17 m
0.20 m
0.05 m
- -
55 - 60 0.11 m
0.09 m
0.13 m
0.13 m
0.04 m
- -
50 - 55 0.11 m
0.11 m
0.18 m
0.13 m
0.04 m
- -
45 - 50 0.22 m
0.15 m
0.20 m
0.20 m
0.05 m
- -
40 - 45 0.26 m
0.15 m
0.16 m
0.18 m
0.03 m
- -
35 - 40 0.37 m
0.25 m
0.29 m
- - - -
30 - 35 0.36 m
0.29 m
0.47 m
- - - -
25 - 30 0.47 m
0.40 m
0.25 m
0.36 m
0.04 m
- -
20 - 25 0.39 m
0.26 m
0.25 m
0.32 m
0.07 m
- -
15 - 20 0.45 m
0.38 m
0.39 m
0.29 m
0.14 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 R17 starting 2022/01/20 14:29:13.00.
- Orbit missing or expired for SV R22 starting 2022/01/20 14:32:15.00.
- Updated header information or comments after epoch 2022/01/20 14:59:59.00

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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