Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 09:01:52.26

File Details:


Observation File: clre072i30.24o
GPS Navigation File: clre072i30.24n
GLONASS Navigation File: clre072i30.24g
Galileo Navigation File: clre072i30.24l
BeiDou Navigation File: clre072i30.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  MARINE CITY  49556S001   
Observer/Agency:  Shawn Roy  Michigan DOT   
Receiver #/Type/Vers:  1870875  LEICA GR50  4.61/7.811 
Antenna #/Type:  18274005  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  604778.586  -4653802.201  4305122.114 
Approx Position (plh):  42° 43' 25.91607" N  82° 35' 44.51772" W  155.543m 
Diff. Est-Header:  -5.9 m dX  -0.7 m dY  1.2 m dZ 
Diff. Est-Header:  6.0 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 08:30:00.00 GPS 
Time of last obs:  2024/03/12 08:44:59.00 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:  36 
Num SVs with nav:  80 
Total GPS orbits:  45 
Total GLONASS orbits:  29 
Total Galileo orbits:  292 
Total BeiDou orbits:  29 
SVs with obs:  G2 G3 G10 G12 G21 G23 G25 G28 G31 G32 R3 R4 R5 R13 R14 R15 R16 R20 R21 E2 E3 E7 E8 E13 E25 E26 E30 E33 C19 C20 C22 C23 C32 C36 C37 C46  
SVs without obs:  G1 G4 G5 G6 G7 G8 G9 G11 G13 G14 G15 G16 G17 G18 G19 G20 G22 G24 G26 G27 G29 G30 R1 R2 R6 R7 R8 R9 R10 R11 R12 R17 R18 R19 R22 R23 R24 E1 E4 E5 E6 E9 E10 E11 E12 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E27 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 C21 C24 C25 C26 C27 C28 C29 C30 C31 C33 C34 C35 C38 C39 C40 C41 C42 C43 C44 C45 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 G5 G7 G8 G10 G11 G12 G13 G15 G16 G18 G20 G21 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R1 R2 R3 R4 R5 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R23 R24 E2 E3 E5 E7 E8 E9 E13 E15 E24 E25 E26 E27 E30 E33 E34 C12 C19 C20 C22 C23 C24 C25 C27 C28 C29 C30 C32 C33 C35 C36 C37 C40 C41 C44 C46  
SVs without nav:  G1 G4 G6 G9 G14 G17 G19 G22 R6 R7 R22 E1 E4 E6 E10 E11 E12 E14 E16 E17 E18 E19 E20 E21 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 C21 C26 C31 C34 C38 C39 C42 C43 C45 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 15 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.03m MP2 / 0.04m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 7 slips, Threshold 33 slips 
Multipath:  Pass  Value 0.03m MP1 / 0.05m 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 37 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.03m MP5a / 0.04m MP5b / 0.03m 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 22 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°:  30311 
Num possible obs > 0°:  34296 
Num obs with invalid nav: 
Num obs without nav: 
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°:  898  (99.8 %) 
Epochs with full data > 15°:  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.3  2.5  2.4 
GDOP  2.8  3.1  3.0 

Data Gaps 
Num epochs with data:  900 
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:  0.000011 ms (at 2024/03/12 08:35:50.00) 
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°:  30311  8167  6858  8097  7189 
Num possible obs > 0°:  34296  9539  7657  8100  9000 
Num obs with invalid nav: 
Num obs without nav: 
Num obs to unhealthy SV: 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  23084  7727  5536  6140  3681 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 % 
Num possible obs > 15°:  23086  7727  5538  6140  3681 
Num complete obs > 15°:  7727  7727 
% complete obs > 15°:   33.5 %  100.0 % 
Num obs with WLF change:  
Average # SV per Epoch:  25.6   8.6   6.2   6.8   4.1  
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.865   1.767   2.001  
Obs E5b/B2I:  1.000   1.000  
Obs L5/E5a/B2a:  0.740   0.534   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:  0.091 % 
Num complete obs per slip:  1103  
IOD Slips > 15°: 
Outliers > 15°: 
LLI : Obs L1/E1/B1I:  0.0002   0.0009  
LLI : Obs L2/B1C:  0.0002   0.0005  
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:  0.022 m  0.019 m  0.029 m  0.025 m  0.010 m 
MP (L2/B1C) RMS:  0.038 m  0.032 m  0.047 m 
MP (L5/E5a/B2a) RMS:  0.035 m  0.036 m  0.035 m 
MP (E5b/B2I) RMS:  0.040 m  0.040 m 
MP (E5a+b/B2a+b) RMS:  0.025 m  0.025 m 
MP (L6/E6/B3I/G2a) RMS:  0.017 m  0.017 m 
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 100.0 %
99.8 %
100.0 %
100.0 %
L2P 100.0 %
99.8 %
100.0 %
100.0 %
L2S 76.7 %
76.7 %
76.7 %
76.7 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 74.0 %
74.0 %
74.0 %
74.0 %
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
G2 23.37° 23.65° 900 900 (100.0 %)
0 (0.0 %) 0
G10 48.65° 56.12° 900 900 (100.0 %)
0 (0.0 %) 0
G12 24.83° 26.33° 900 900 (100.0 %)
0 (0.0 %) 0
G21 25.74° 27.71° 900 900 (100.0 %)
0 (0.0 %) 0
G23 15.01° 18.70° 527 527 (100.0 %)
0 (0.0 %) 0
G25 37.37° 39.41° 900 900 (100.0 %)
0 (0.0 %) 0
G28 62.82° 70.00° 900 900 (100.0 %)
0 (0.0 %) 0
G31 31.71° 38.39° 900 900 (100.0 %)
0 (0.0 %) 0
G32 69.62° 72.47° 900 900 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R3 15.00° 15.78° 138 138 (100.0 %)
0 (0.0 %) 0
R4 54.07° 57.74° 900 900 (100.0 %)
0 (0.0 %) 0
R5 47.99° 53.93° 900 900 (100.0 %)
0 (0.0 %) 0
R14 56.42° 59.19° 900 900 (100.0 %)
0 (0.0 %) 0
R15 40.85° 49.51° 900 900 (100.0 %)
0 (0.0 %) 0
R20 16.82° 21.85° 900 898 (99.8 %)
0 (0.0 %) 7
R21 15.28° 16.00° 900 900 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E2 37.04° 39.06° 900 900 (100.0 %)
0 (0.0 %) 0
E3 15.00° 15.06° 15 15 (100.0 %)
0 (0.0 %) 0
E7 52.98° 56.90° 900 900 (100.0 %)
0 (0.0 %) 0
E8 58.49° 62.08° 900 900 (100.0 %)
0 (0.0 %) 0
E13 20.46° 25.87° 900 900 (100.0 %)
0 (0.0 %) 0
E25 15.00° 16.55° 547 547 (100.0 %)
0 (0.0 %) 0
E26 32.95° 34.90° 900 900 (100.0 %)
0 (0.0 %) 0
E30 22.56° 27.99° 900 900 (100.0 %)
0 (0.0 %) 0
E33 15.00° 15.43° 178 178 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C19 53.46° 59.29° 900 900 (100.0 %)
0 (0.0 %) 0
C20 64.83° 69.60° 900 900 (100.0 %)
0 (0.0 %) 0
C32 15.00° 15.42° 81 81 (100.0 %)
0 (0.0 %) 0
C37 48.54° 52.06° 900 900 (100.0 %)
0 (0.0 %) 0
C46 50.23° 56.98° 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
G2 3.9 %
0.0 %
100.0 %
0.0 %
100.0 %
G10 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
G12 3.9 %
0.0 %
0.0 %
0.0 %
100.0 %
G21 3.9 %
0.0 %
100.0 %
0.0 %
100.0 %
G23 2.3 %
0.0 %
0.0 %
0.0 %
0.0 %
G25 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
G28 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
G31 3.9 %
0.0 %
0.0 %
0.0 %
100.0 %
G32 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R3 0.6 %
0.0 %
0.0 %
0.0 %
R4 3.9 %
0.0 %
0.0 %
0.0 %
R5 3.9 %
0.0 %
0.0 %
0.0 %
R14 3.9 %
0.0 %
0.0 %
0.0 %
R15 3.9 %
0.0 %
0.0 %
0.0 %
R20 3.9 %
1.7 %
1.2 %
1.2 %
R21 3.9 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E2 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E3 0.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E7 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E8 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E13 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E25 2.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E26 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E30 3.9 %
0.0 %
0.0 %
0.0 %
0.0 %
E33 0.8 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L6I
C19 3.9 %
0.0 %
0.0 %
C20 3.9 %
0.0 %
0.0 %
C32 0.4 %
0.0 %
0.0 %
C37 3.9 %
0.0 %
0.0 %
C46 3.9 %
0.0 %
0.0 %

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 %
G21 0.0 %
100.0 %
0.0 %
100.0 %
G23 0.0 %
0.0 %
0.0 %
0.0 %
G25 0.0 %
0.0 %
0.0 %
0.0 %
G28 0.0 %
0.0 %
0.0 %
0.0 %
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
R3 0.0 %
0.0 %
0.0 %
R4 0.0 %
0.0 %
0.0 %
R5 0.0 %
0.0 %
0.0 %
R14 0.0 %
0.0 %
0.0 %
R15 0.0 %
0.0 %
0.0 %
R20 0.0 %
0.0 %
0.0 %
R21 0.0 %
0.0 %
0.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E2 0.0 %
0.0 %
0.0 %
0.0 %
E3 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 %
E13 0.0 %
0.0 %
0.0 %
0.0 %
E25 0.0 %
0.0 %
0.0 %
0.0 %
E26 0.0 %
0.0 %
0.0 %
0.0 %
E30 0.0 %
0.0 %
0.0 %
0.0 %
E33 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C6I
C19 0.0 %
0.0 %
C20 0.0 %
0.0 %
C32 0.0 %
0.0 %
C37 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
0.0 %
75 - 80 0
0
0
0
0
0
0.0 %
70 - 75 0
0
0
0
0
0
3.5 %
65 - 70 0
0
0
0
0
0
6.9 %
60 - 65 0
0
0
0
0
0
3.6 %
55 - 60 0
0
0
0
0
0
15.0 %
50 - 55 0
0
0
0
0
0
14.3 %
45 - 50 0
0
0
0
0
0
5.5 %
40 - 45 0
0
0
0
0
0
1.9 %
35 - 40 0
0
0
0
0
0
9.8 %
30 - 35 0
0
0
0
0
0
5.8 %
25 - 30 0
0
0
0
0
0
10.2 %
20 - 25 0
0
0
0
0
0
10.8 %
15 - 20 0
7
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
G2 40.1
39.7
-
G10 50.1
50.8
55.3
G12 42.0
43.9
-
G21 41.2
39.7
-
G23 37.7
43.4
46.4
G25 44.5
46.5
52.5
G28 49.2
55.0
57.7
G31 44.4
46.5
-
G32 53.4
53.9
56.1
Average GPS: 44.7
46.6
53.6

SV GLONASS G1 G2
R3 37.9
40.1
R4 50.0
49.1
R5 49.9
48.8
R14 51.8
49.0
R15 48.4
47.5
R20 30.1
33.5
R21 39.0
37.9
Average GLONASS: 43.9
43.7

SV Galileo E1 E5a E5b E5a+b
E2 46.7
50.5
51.1
53.9
E3 38.0
45.1
43.9
47.8
E7 50.5
53.7
54.5
57.2
E8 51.5
54.3
55.1
57.8
E13 40.7
45.9
46.2
49.1
E25 38.9
44.3
44.3
47.3
E26 44.9
48.8
49.5
52.3
E30 41.7
46.4
46.9
49.8
E33 36.9
43.7
46.6
48.5
Average Galileo: 43.3
48.1
48.7
51.5

SV BeiDou B1I B3I
C19 50.6
52.1
C20 52.8
52.7
C32 37.3
40.6
C37 49.6
51.0
C46 49.7
51.1
Average BeiDou: 48.0
49.5

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G2 23.5 ° 0.02 m
0.04 m
-
G10 52.4 ° 0.01 m
0.01 m
0.01 m
G12 25.6 ° 0.05 m
0.03 m
-
G21 26.7 ° 0.02 m
0.07 m
-
G23 16.9 ° 0.04 m
0.07 m
0.03 m
G25 38.4 ° 0.01 m
0.03 m
0.06 m
G28 66.4 ° 0.01 m
0.01 m
0.01 m
G31 35.1 ° 0.01 m
0.01 m
-
G32 71.0 ° 0.01 m
0.01 m
0.06 m
Average GPS: - 0.02 m
0.03 m
0.04 m

SV GLONASS Av Elev MP (G1) MP (G2)
R3 15.4 ° 0.02 m
0.01 m
R4 55.9 ° 0.01 m
0.02 m
R5 51.0 ° 0.01 m
0.01 m
R14 57.8 ° 0.01 m
0.03 m
R15 45.2 ° 0.01 m
0.02 m
R20 19.3 ° 0.09 m
0.03 m
R21 15.6 ° 0.05 m
0.21 m
Average GLONASS: - 0.03 m
0.05 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E2 38.0 ° 0.02 m
0.05 m
0.06 m
0.02 m
E3 - - - - -
E7 54.9 ° 0.01 m
0.02 m
0.02 m
0.01 m
E8 60.3 ° 0.01 m
0.02 m
0.02 m
0.01 m
E13 23.2 ° 0.03 m
0.03 m
0.03 m
0.03 m
E25 15.8 ° 0.03 m
0.04 m
0.03 m
0.03 m
E26 33.9 ° 0.02 m
0.03 m
0.05 m
0.05 m
E30 25.3 ° 0.02 m
0.03 m
0.02 m
0.01 m
E33 15.2 ° 0.06 m
0.06 m
0.08 m
0.04 m
Average Galileo: - 0.02 m
0.03 m
0.04 m
0.03 m

SV BeiDou Av Elev MP (B1I) MP (B3I)
C19 56.4 ° 0.01 m
0.01 m
C20 67.2 ° 0.01 m
0.02 m
C32 - - -
C37 50.3 ° 0.01 m
0.02 m
C46 53.6 ° 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 - - - - - - -
75 - 80 - - - - - - -
70 - 75 0.01 m
0.01 m
0.06 m
- - - -
65 - 70 0.01 m
0.02 m
0.01 m
- - 0.02 m
-
60 - 65 0.01 m
0.01 m
0.02 m
0.02 m
0.01 m
- -
55 - 60 0.01 m
0.02 m
0.02 m
0.02 m
0.01 m
0.01 m
-
50 - 55 0.01 m
0.01 m
0.01 m
0.02 m
0.01 m
0.02 m
-
45 - 50 0.01 m
0.02 m
0.01 m
- - 0.02 m
-
40 - 45 0.01 m
0.02 m
- - - - -
35 - 40 0.01 m
0.03 m
0.06 m
0.06 m
0.02 m
- -
30 - 35 0.01 m
0.01 m
0.03 m
0.05 m
0.05 m
- -
25 - 30 0.03 m
0.05 m
0.03 m
0.02 m
0.02 m
- -
20 - 25 0.02 m
0.04 m
0.03 m
0.02 m
0.02 m
- -
15 - 20 0.06 m
0.13 m
0.04 m
0.04 m
0.03 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 08:44:59.00

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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