Leica SpiderQC v7.5 Quality Report


Program Run: 2021/07/20 17:01:22.16

File Details:


Observation File: algc201q.21o
GPS Navigation File: algc201q.21n
GLONASS Navigation File: algc201q.21g
Galileo Navigation File: algc201q.21l
BeiDou Navigation File: algc201q.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:  -0.4 m dX  -6.8 m dY  3.1 m dZ 
Diff. Est-Header:  7.5 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/07/20 16:00:00.00 GPS 
Time of last obs:  2021/07/20 16:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2167, day 2 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  38 
Num SVs with nav:  102 
Total GPS orbits:  44 
Total GLONASS orbits:  40 
Total Galileo orbits:  83 
Total BeiDou orbits:  31 
Total QZSS orbits:  0 
Total NavIC orbits:  0 
SVs with obs:  G1 G2 G3 G4 G6 G7 G9 G17 G19 G21 G22 G31 R5 R6 R7 R8 R9 R15 R16 R20 R21 R22 R23 E3 E5 E7 E8 E13 E15 C5 C9 C14 C23 C24 C25 C27 C28 C30  
SVs without obs:  G5 G8 G10 G11 G12 G13 G14 G15 G16 G18 G20 G23 G24 G25 G26 G27 G28 G29 G30 G32 R1 R2 R3 R4 R10 R11 R12 R13 R14 R17 R18 R19 R24 E1 E2 E4 E6 E9 E10 E11 E12 E14 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26 E27 E28 E29 E30 E31 E32 E33 E34 E35 E36 C1 C2 C3 C4 C6 C7 C8 C10 C11 C12 C13 C15 C16 C17 C18 C19 C20 C21 C22 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 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:  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 62 slips 
Multipath:  Pass  Value 0.09m 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 22 slips, Threshold 105 slips 
Multipath:  Pass  Value 0.09m MP1 / 0.09m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 99.8 %, Threshold 90.0 % 
Navigation Data:  Fail   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 2 slips, Threshold 99 slips 
Multipath:  Pass  Value 0.05m MP1 / 0.10m MP5a / 0.11m MP5b / 0.03m 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 70 slips 
Multipath:  Fail  Value 0.52m MP1 / 0.10m MP2b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Fail   

General Quality Indicators:


Tracking   
Num obs > 0°:  112123 
Num possible obs > 0°:  112596 
Num obs with invalid nav:  0 
Num obs without nav:  3658 
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°:  3597  (99.9 %) 
Epochs with full data > 15°:  3563  (99.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.2  2.4  2.3 
GDOP  2.6  3.0  2.8 

Data Gaps 
Num epochs with data:  3600 
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:  0.000015 ms (at 2021/07/20 16:59:55.00) 
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°:  112123  39442  25029  19256  28396  -  - 
Num possible obs > 0°:  112596  40218  26623  20629  25126  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  3658  -  58  -  3600  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  76430  30826  17478  16471  11655  -  - 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 %  -  - 
Num possible obs > 15°:  76433  30826  17481  16471  11655  -  - 
Num complete obs > 15°:  76396  30826  17444  16471  11655  -  - 
% complete obs > 15°:   100.0 %  100.0 %  99.8 %  100.0 %  100.0 %  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  21.2   8.6   4.9   4.6   3.2   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.668   1.711   1.591   -  -  -  - 
Obs E5b/B2I:  0.603   -  -  1.000   0.042   -  - 
Obs L5/E5a/B2a:  0.729   0.584   -  1.000   -  -  - 
Obs E5a+b/B2a+b:  1.000   -  -  1.000   -  -  - 
Obs L6/E6/B3I/G2a:  -  -  -  -  -  -  - 
Obs G3:  -  -  -  -  -  -  - 

Cycle Slips               
Num cycle slips > 15°:  24  -  22  2  -  -  - 
% slips per complete obs:  0.031 %  -  0.126 %  0.012 %  -  -  - 
Num complete obs per slip:  3183   -  792   8235   -  -  - 
IOD Slips > 15°:  -  -  -  -  -  -  - 
Outliers > 15°:  -  -  -  -  -  -  - 
LLI : Obs L1/E1/B1I:  0.0002   -  0.0006   0.0001   -  -  - 
LLI : Obs L2/B1C:  0.0001   -  0.0004   -  -  -  - 
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:  0.169 m  0.092 m  0.087 m  0.052 m  0.521 m  -  - 
MP (L2/B1C) RMS:  0.094 m  0.097 m  0.090 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.111 m  0.121 m  -  0.102 m  -  -  - 
MP (E5b/B2I) RMS:  0.106 m  -  -  0.107 m  0.102 m  -  - 
MP (E5a+b/B2a+b) RMS:  0.034 m  -  -  0.034 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 %
99.9 %
100.0 %
100.0 %
L1I 100.0 %
100.0 %
100.0 %
100.0 %
L2C 79.4 %
79.4 %
79.4 %
79.4 %
L2P 79.4 %
79.4 %
79.4 %
79.4 %
L2S 71.1 %
71.1 %
71.1 %
71.1 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 72.9 %
72.9 %
72.9 %
72.9 %
L7I 4.2 %
4.2 %
4.2 %
4.2 %
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
G1 20.01° 41.72° 3600 3600 (100.0 %)
0 (0.0 %) 0
G3 31.24° 50.05° 3600 3600 (100.0 %)
0 (0.0 %) 0
G4 61.57° 75.11° 3600 3600 (100.0 %)
0 (0.0 %) 0
G6 19.15° 43.24° 3600 3600 (100.0 %)
0 (0.0 %) 0
G7 15.01° 17.04° 323 323 (100.0 %)
0 (0.0 %) 0
G9 47.51° 77.68° 3600 3600 (100.0 %)
0 (0.0 %) 0
G17 38.26° 56.67° 3600 3600 (100.0 %)
0 (0.0 %) 0
G19 45.55° 49.03° 3600 3600 (100.0 %)
0 (0.0 %) 0
G21 15.00° 25.29° 1722 1722 (100.0 %)
0 (0.0 %) 0
G22 15.00° 32.66° 3581 3581 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R6 35.18° 62.44° 3600 3600 (100.0 %)
0 (0.0 %) 0
R7 52.87° 63.49° 3600 3600 (100.0 %)
0 (0.0 %) 0
R8 15.00° 28.19° 2310 2310 (100.0 %)
0 (0.0 %) 0
R16 - - 0 0 (-)
44 (-) 0
R20 15.00° 20.91° 771 768 (99.6 %)
14 (1.8 %) 22
R21 46.80° 82.23° 3600 3600 (100.0 %)
0 (0.0 %) 0
R22 43.51° 72.42° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E3 58.58° 78.18° 3600 3600 (100.0 %)
0 (0.0 %) 0
E5 15.00° 25.55° 2071 2071 (100.0 %)
0 (0.0 %) 1
E8 43.08° 63.53° 3600 3600 (100.0 %)
0 (0.0 %) 1
E13 29.22° 49.20° 3600 3600 (100.0 %)
0 (0.0 %) 0
E15 73.19° 86.85° 3600 3600 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C5 - - 0 0 (-)
3600 (-) 0
C9 15.00° 15.79° 495 495 (100.0 %)
0 (0.0 %) 0
C25 15.00° 16.40° 360 360 (100.0 %)
0 (0.0 %) 0
C27 60.11° 67.59° 3600 3600 (100.0 %)
0 (0.0 %) 0
C28 23.02° 49.31° 3600 3600 (100.0 %)
0 (0.0 %) 0
C30 16.70° 35.06° 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 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G3 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G4 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G6 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G7 0.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G9 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G17 4.7 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 4.7 %
0.0 %
100.0 %
0.0 %
100.0 %
G21 2.3 %
0.0 %
100.0 %
0.0 %
100.0 %
G22 4.7 %
0.0 %
100.0 %
0.0 %
100.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R6 4.7 %
0.0 %
100.0 %
100.0 %
R7 4.7 %
0.0 %
0.0 %
0.0 %
R8 3.0 %
0.0 %
0.0 %
0.0 %
R20 1.0 %
4.4 %
0.4 %
0.4 %
R21 4.7 %
0.0 %
0.0 %
0.0 %
R22 4.7 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E3 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E5 2.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E8 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E13 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E15 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I
C9 0.6 %
0.0 %
0.0 %
C25 0.5 %
0.0 %
100.0 %
C27 4.7 %
0.0 %
100.0 %
C28 4.7 %
0.0 %
100.0 %
C30 4.7 %
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 %
G3 0.0 %
0.0 %
0.0 %
0.0 %
G4 0.0 %
0.0 %
0.0 %
0.0 %
G6 0.0 %
0.0 %
0.0 %
0.0 %
G7 0.0 %
0.0 %
0.0 %
100.0 %
G9 0.0 %
0.0 %
0.0 %
0.0 %
G17 0.0 %
0.0 %
0.0 %
100.0 %
G19 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 %

SV GLONASS Missing C1C Missing C2C Missing C2P
R6 0.0 %
100.0 %
100.0 %
R7 0.0 %
0.0 %
0.0 %
R8 0.0 %
0.0 %
0.0 %
R20 0.0 %
0.0 %
0.0 %
R21 0.0 %
0.0 %
0.0 %
R22 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 %
E8 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 %

SV BeiDou Missing C2I Missing C7I
C9 0.0 %
0.0 %
C25 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
1.5 %
80 - 85 0
0
0
0
0
0
2.2 %
75 - 80 0
0
0
0
0
0
3.6 %
70 - 75 0
0
0
0
0
0
6.1 %
65 - 70 0
0
0
0
0
0
7.8 %
60 - 65 0
0
1
0
0
0
9.4 %
55 - 60 0
0
0
0
0
0
6.6 %
50 - 55 0
0
0
0
0
0
6.1 %
45 - 50 0
0
0
0
0
0
12.3 %
40 - 45 0
0
0
0
0
0
6.8 %
35 - 40 0
0
0
0
0
0
6.7 %
30 - 35 0
0
0
0
0
0
7.3 %
25 - 30 0
0
0
0
0
0
6.7 %
20 - 25 0
0
0
0
0
0
8.7 %
15 - 20 0
22
1
0
0
0
8.2 %
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 43.7
46.4
50.8
G3 47.2
49.2
53.5
G4 51.5
55.5
58.1
G6 44.4
47.6
50.6
G7 40.4
40.7
-
G9 52.9
53.8
57.0
G17 50.6
49.6
-
G19 49.9
49.2
-
G21 40.8
39.2
-
G22 42.2
41.2
-
Average GPS: 46.4
47.2
54.0

SV GLONASS G1 G2
R6 41.3
-
R7 52.9
50.7
R8 43.2
42.6
R20 30.7
41.5
R21 52.8
50.6
R22 42.1
37.9
Average GLONASS: 43.8
44.7

SV Galileo E1 E5a E5b E5a+b
E3 54.0
55.3
56.1
58.8
E5 41.9
45.1
45.6
48.6
E8 52.5
53.8
54.3
57.2
E13 48.9
50.8
51.1
54.1
E15 54.4
56.3
56.9
59.7
Average Galileo: 50.3
52.3
52.8
55.7

SV BeiDou B1I B2I
C9 35.7
40.7
C25 40.3
-
C27 54.2
-
C28 47.2
-
C30 44.4
-
Average BeiDou: 44.4
40.7

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G1 30.9 ° 0.12 m
0.10 m
0.19 m
G3 40.6 ° 0.05 m
0.05 m
0.10 m
G4 68.3 ° 0.03 m
0.04 m
0.07 m
G6 31.2 ° 0.13 m
0.10 m
0.18 m
G7 16.0 ° 0.17 m
0.11 m
-
G9 62.6 ° 0.06 m
0.06 m
0.07 m
G17 47.5 ° 0.05 m
0.07 m
-
G19 47.3 ° 0.05 m
0.07 m
-
G21 20.1 ° 0.14 m
0.21 m
-
G22 23.8 ° 0.11 m
0.17 m
-
Average GPS: - 0.09 m
0.10 m
0.12 m

SV GLONASS Av Elev MP (G1) MP (G2)
R6 - - -
R7 58.2 ° 0.04 m
0.07 m
R8 21.6 ° 0.09 m
0.12 m
R20 18.0 ° 0.17 m
0.13 m
R21 64.5 ° 0.05 m
0.06 m
R22 58.0 ° 0.07 m
0.07 m
Average GLONASS: - 0.09 m
0.09 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E3 68.4 ° 0.02 m
0.05 m
0.05 m
0.01 m
E5 20.3 ° 0.09 m
0.20 m
0.20 m
0.04 m
E8 53.3 ° 0.04 m
0.09 m
0.08 m
0.06 m
E13 39.2 ° 0.06 m
0.13 m
0.17 m
0.04 m
E15 80.0 ° 0.05 m
0.05 m
0.04 m
0.02 m
Average Galileo: - 0.05 m
0.10 m
0.11 m
0.03 m

SV BeiDou Av Elev MP (B1I) MP (B2I)
C9 15.4 ° 0.12 m
0.10 m
C25 15.7 ° 0.28 m
-
C27 63.8 ° 0.11 m
-
C28 36.2 ° 1.42 m
-
C30 25.9 ° 0.67 m
-
Average BeiDou: - 0.52 m
0.10 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 0.05 m
- 0.04 m
0.03 m
0.01 m
- -
80 - 85 0.06 m
0.12 m
0.04 m
0.05 m
0.02 m
- -
75 - 80 0.04 m
0.05 m
0.06 m
0.03 m
0.01 m
- -
70 - 75 0.04 m
0.04 m
0.07 m
0.03 m
0.01 m
- -
65 - 70 0.06 m
0.05 m
0.05 m
0.05 m
0.01 m
- -
60 - 65 0.06 m
0.05 m
0.06 m
0.11 m
0.03 m
- -
55 - 60 0.05 m
0.06 m
0.09 m
0.06 m
0.04 m
- -
50 - 55 0.06 m
0.09 m
0.10 m
0.08 m
0.07 m
- -
45 - 50 0.20 m
0.07 m
0.09 m
0.09 m
0.03 m
- -
40 - 45 0.27 m
0.07 m
0.10 m
0.10 m
0.04 m
- -
35 - 40 0.17 m
0.08 m
0.13 m
0.18 m
0.05 m
- -
30 - 35 0.29 m
0.10 m
0.18 m
0.25 m
0.06 m
- -
25 - 30 0.42 m
0.12 m
0.18 m
0.18 m
0.06 m
- -
20 - 25 0.24 m
0.14 m
0.20 m
0.18 m
0.03 m
- -
15 - 20 0.25 m
0.17 m
0.25 m
0.18 m
0.06 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 C5 starting 2021/07/20 16:00:00.00.
- Orbit missing or expired for SV R16 starting 2021/07/20 16:24:01.00.
- Orbit missing or expired for SV R20 starting 2021/07/20 16:44:07.00.
- Updated header information or comments after epoch 2021/07/20 16:59:59.00

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  
-  It took 1.6 seconds to process this file 
-  This file was processed using version 7.5.2.8679