Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 18:28:04.62

File Details:


Observation File: mimc072s00.24o
GPS Navigation File: mimc072s00.24n
GLONASS Navigation File: mimc072s00.24g
Galileo Navigation File: mimc072s00.24l
BeiDou Navigation File: mimc072s00.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  MACKINAW CITY  DN2580   
Observer/Agency:  Shawn Roy  Michigan DOT   
Receiver #/Type/Vers:  1870599  LEICA GR50  4.52/7.711 
Antenna #/Type:  19067003  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  409996.787  -4437283.733  4548135.205 
Approx Position (plh):  45° 46' 38.77586" N  84° 43' 15.47508" W  148.425m 
Diff. Est-Header:  -7.2 m dX  -2.6 m dY  2.3 m dZ 
Diff. Est-Header:  8.0 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 18:00:00.00 GPS 
Time of last obs:  2024/03/12 18:14:59.00 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:  35 
Num SVs with nav:  90 
Total GPS orbits:  54 
Total GLONASS orbits:  30 
Total Galileo orbits:  272 
Total BeiDou orbits:  45 
SVs with obs:  G2 G7 G8 G10 G13 G14 G15 G17 G19 G21 G22 G30 R2 R3 R4 R10 R11 R12 R20 R21 R22 E4 E9 E13 E21 E26 E31 E33 C24 C25 C26 C29 C34 C44 C45  
SVs without obs:  G1 G3 G4 G5 G6 G9 G11 G12 G16 G18 G20 G23 G24 G25 G26 G27 G28 G29 G31 G32 R1 R5 R6 R7 R8 R9 R13 R14 R15 R16 R17 R18 R19 R23 R24 E1 E2 E3 E5 E6 E7 E8 E10 E11 E12 E14 E15 E16 E17 E18 E19 E20 E22 E23 E24 E25 E27 E28 E29 E30 E32 E34 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C27 C28 C30 C31 C32 C33 C35 C36 C37 C38 C39 C40 C41 C42 C43 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 I8 I9  
SVs with nav:  G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G25 G26 G27 G28 G29 G30 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R15 R16 R17 R18 R19 R20 R21 R22 R24 E4 E5 E7 E9 E10 E13 E15 E19 E21 E26 E27 E30 E31 E33 E34 C8 C12 C13 C14 C19 C21 C22 C24 C25 C26 C27 C28 C29 C30 C33 C34 C35 C36 C38 C41 C42 C44 C45 C46 C57  
SVs without nav:  G1 G23 G24 R13 R14 R23 E1 E2 E3 E6 E8 E11 E12 E14 E16 E17 E18 E20 E22 E23 E24 E25 E28 E29 E32 E35 E36 C1 C2 C3 C4 C5 C6 C7 C9 C10 C11 C15 C16 C17 C18 C20 C23 C31 C32 C37 C39 C40 C43 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C58 C59 C60 C61 C62 C63  
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 17 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.03m MP2 / 0.03m 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 29 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.03m 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 33 slips 
Multipath:  Pass  Value 0.05m MP1 / 0.06m MP5a / 0.06m 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 16 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°:  30619 
Num possible obs > 0°:  33207 
Num obs with invalid nav:  0 
Num obs without nav:  0 
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°:  0  (0.0 %) 
Epochs with full data > 15°:  0  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.6  2.7  2.6 
GDOP  3.2  3.3  3.2 

Data Gaps 
Num epochs with data:  900 
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 
C12  14.983  1 / 900  28.90° / 33.01°  211.91° / 213.79° 
Total:  14.983 (899 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000005 ms (at 2024/03/12 18:02:39.00) 
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°:  30619  10755  7805  6288  5771  -  - 
Num possible obs > 0°:  33207  10800  7979  7228  7200  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  -  -  -  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  21589  8628  4803  5458  2700  -  - 
% obs > 15°:   96.0 %  100.0 %  100.0 %  100.0 %  75.0 %  -  - 
Num possible obs > 15°:  22489  8628  4803  5458  3600  -  - 
Num complete obs > 15°:  8628  8628  -  -  -  -  - 
% complete obs > 15°:   38.4 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  24.0   9.6   5.3   6.1   3.0   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.620   1.478   1.874   -  -  -  - 
Obs E5b/B2I:  1.000   -  -  1.000   -  -  - 
Obs L5/E5a/B2a:  0.553   0.270   -  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:  -  -  -  -  -  -  - 
Num complete obs per slip:  -  -  -  -  -  -  - 
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:  0.027 m  0.021 m  0.021 m  0.046 m  0.014 m  -  - 
MP (L2/B1C) RMS:  0.031 m  0.029 m  0.035 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.052 m  0.028 m  -  0.062 m  -  -  - 
MP (E5b/B2I) RMS:  0.061 m  -  -  0.061 m  -  -  - 
MP (E5a+b/B2a+b) RMS:  0.028 m  -  -  0.028 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.019 m  -  -  -  0.019 m  -  - 
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 93.7 %
93.7 %
93.7 %
93.7 %
L2P 93.7 %
93.7 %
93.7 %
93.7 %
L2S 47.8 %
47.8 %
47.8 %
47.8 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 55.3 %
55.3 %
55.3 %
55.3 %
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 51.53° 53.29° 900 900 (100.0 %)
0 (0.0 %) 0
G7 27.26° 34.48° 900 900 (100.0 %)
0 (0.0 %) 0
G8 15.01° 18.25° 528 528 (100.0 %)
0 (0.0 %) 0
G13 19.96° 22.72° 900 900 (100.0 %)
0 (0.0 %) 0
G14 71.54° 77.74° 900 900 (100.0 %)
0 (0.0 %) 0
G17 50.40° 56.68° 900 900 (100.0 %)
0 (0.0 %) 0
G19 20.98° 26.72° 900 900 (100.0 %)
0 (0.0 %) 0
G21 38.48° 42.46° 900 900 (100.0 %)
0 (0.0 %) 0
G22 50.08° 56.04° 900 900 (100.0 %)
0 (0.0 %) 0
G30 52.17° 58.66° 900 900 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R10 15.00° 17.10° 303 303 (100.0 %)
0 (0.0 %) 0
R11 64.32° 70.60° 900 900 (100.0 %)
0 (0.0 %) 0
R12 41.91° 49.45° 900 900 (100.0 %)
0 (0.0 %) 0
R20 16.90° 24.00° 900 900 (100.0 %)
0 (0.0 %) 0
R21 73.68° 78.10° 900 900 (100.0 %)
0 (0.0 %) 0
R22 38.60° 47.08° 900 900 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E4 15.00° 15.96° 208 208 (100.0 %)
0 (0.0 %) 0
E9 15.37° 16.75° 900 900 (100.0 %)
0 (0.0 %) 0
E13 39.10° 41.85° 900 900 (100.0 %)
0 (0.0 %) 0
E21 40.88° 45.22° 900 900 (100.0 %)
0 (0.0 %) 0
E26 49.06° 54.51° 900 900 (100.0 %)
0 (0.0 %) 0
E31 24.37° 28.73° 900 900 (100.0 %)
0 (0.0 %) 0
E33 15.00° 19.72° 750 750 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C12 - - 900 0 (0.0 %)
0 (0.0 %) 0
C24 58.94° 64.31° 900 900 (100.0 %)
0 (0.0 %) 0
C26 56.85° 63.55° 900 900 (100.0 %)
0 (0.0 %) 0
C44 52.51° 59.20° 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 4.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G7 4.2 %
0.0 %
0.0 %
0.0 %
100.0 %
G8 2.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G13 4.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G14 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
G17 4.2 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 4.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G21 4.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G22 4.2 %
0.0 %
100.0 %
0.0 %
100.0 %
G30 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R10 1.4 %
0.0 %
100.0 %
100.0 %
R11 4.2 %
0.0 %
0.0 %
0.0 %
R12 4.2 %
0.0 %
0.0 %
0.0 %
R20 4.2 %
0.0 %
0.0 %
0.0 %
R21 4.2 %
0.0 %
0.0 %
0.0 %
R22 4.2 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E4 1.0 %
0.0 %
0.0 %
0.0 %
0.0 %
E9 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E13 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E21 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E26 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E31 4.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E33 3.5 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L6I
C24 4.2 %
0.0 %
0.0 %
C26 4.2 %
0.0 %
0.0 %
C44 4.2 %
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 %
G7 0.0 %
0.0 %
0.0 %
100.0 %
G8 0.0 %
0.0 %
0.0 %
0.0 %
G13 0.0 %
100.0 %
0.0 %
100.0 %
G14 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 %
G30 0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Missing C1C Missing C2C Missing C2P
R10 0.0 %
100.0 %
100.0 %
R11 0.0 %
0.0 %
0.0 %
R12 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
E4 0.0 %
0.0 %
0.0 %
0.0 %
E9 0.0 %
0.0 %
0.0 %
0.0 %
E13 0.0 %
0.0 %
0.0 %
0.0 %
E21 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 C6I
C24 0.0 %
0.0 %
C26 0.0 %
0.0 %
C44 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
5.1 %
70 - 75 0
0
0
0
0
0
3.7 %
65 - 70 0
0
0
0
0
0
3.3 %
60 - 65 0
0
0
0
0
0
6.0 %
55 - 60 0
0
0
0
0
0
9.6 %
50 - 55 0
0
0
0
0
0
17.5 %
45 - 50 0
0
0
0
0
0
4.4 %
40 - 45 0
0
0
0
0
0
13.8 %
35 - 40 0
0
0
0
0
0
3.4 %
30 - 35 0
0
0
0
0
0
2.6 %
25 - 30 0
0
0
0
0
0
6.4 %
20 - 25 0
0
0
0
0
0
10.0 %
15 - 20 0
0
0
0
0
0
14.3 %
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 51.3
49.5
-
G7 45.7
44.8
-
G8 39.9
41.5
46.8
G13 41.9
39.0
-
G14 52.7
56.7
59.5
G17 50.8
50.1
-
G19 42.6
42.1
-
G21 48.5
45.4
-
G22 51.3
48.2
-
G30 51.6
50.4
56.2
Average GPS: 47.6
46.8
54.2

SV GLONASS G1 G2
R10 36.6
-
R11 54.2
52.6
R12 48.7
45.1
R20 31.6
35.4
R21 53.4
51.0
R22 50.0
48.2
Average GLONASS: 45.8
46.5

SV Galileo E1 E5a E5b E5a+b
E4 40.3
42.1
43.8
46.0
E9 40.5
43.5
43.3
46.5
E13 49.4
51.3
51.2
54.3
E21 50.0
51.9
51.9
55.0
E26 52.2
53.3
53.7
56.6
E31 45.3
45.8
46.2
49.1
E33 41.7
44.3
44.2
47.3
Average Galileo: 45.6
47.5
47.7
50.7

SV BeiDou B1I B3I
C24 53.3
52.8
C26 52.6
51.4
C44 52.0
50.8
Average BeiDou: 52.7
51.6

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G2 52.4 ° 0.02 m
0.03 m
-
G7 30.9 ° 0.03 m
0.03 m
-
G8 16.6 ° 0.03 m
0.04 m
0.05 m
G13 21.3 ° 0.05 m
0.05 m
-
G14 74.6 ° 0.01 m
0.01 m
0.01 m
G17 53.5 ° 0.01 m
0.01 m
-
G19 23.9 ° 0.04 m
0.04 m
-
G21 40.5 ° 0.01 m
0.05 m
-
G22 53.1 ° 0.01 m
0.01 m
-
G30 55.4 ° 0.01 m
0.02 m
0.02 m
Average GPS: - 0.02 m
0.03 m
0.03 m

SV GLONASS Av Elev MP (G1) MP (G2)
R10 - - -
R11 67.5 ° 0.01 m
0.01 m
R12 45.7 ° 0.01 m
0.02 m
R20 20.5 ° 0.04 m
0.08 m
R21 75.9 ° 0.03 m
0.02 m
R22 42.8 ° 0.02 m
0.05 m
Average GLONASS: - 0.02 m
0.03 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E4 15.5 ° 0.03 m
0.02 m
0.06 m
0.02 m
E9 16.1 ° 0.09 m
0.11 m
0.11 m
0.04 m
E13 40.5 ° 0.01 m
0.01 m
0.03 m
0.03 m
E21 43.1 ° 0.03 m
0.07 m
0.05 m
0.03 m
E26 51.8 ° 0.02 m
0.03 m
0.05 m
0.02 m
E31 26.5 ° 0.02 m
0.04 m
0.04 m
0.02 m
E33 17.4 ° 0.12 m
0.15 m
0.09 m
0.04 m
Average Galileo: - 0.05 m
0.06 m
0.06 m
0.03 m

SV BeiDou Av Elev MP (B1I) MP (B3I)
C24 61.6 ° 0.01 m
0.01 m
C26 60.2 ° 0.02 m
0.01 m
C44 55.9 ° 0.01 m
0.03 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 0.02 m
0.01 m
0.01 m
- - - -
70 - 75 0.01 m
0.01 m
0.01 m
- - - -
65 - 70 0.01 m
0.01 m
- - - - -
60 - 65 0.01 m
- - - - 0.01 m
-
55 - 60 0.01 m
0.01 m
0.01 m
- - 0.02 m
-
50 - 55 0.01 m
0.02 m
0.02 m
0.05 m
0.02 m
0.04 m
-
45 - 50 0.02 m
0.03 m
0.02 m
0.10 m
0.02 m
- -
40 - 45 0.02 m
0.04 m
0.05 m
0.04 m
0.03 m
- -
35 - 40 0.01 m
0.06 m
0.01 m
0.04 m
0.01 m
- -
30 - 35 0.03 m
0.02 m
- - - - -
25 - 30 0.02 m
0.04 m
0.04 m
0.04 m
0.02 m
- -
20 - 25 0.04 m
0.06 m
0.05 m
0.03 m
0.03 m
- -
15 - 20 0.08 m
0.05 m
0.10 m
0.10 m
0.04 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 18:14:59.00

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  
-  It took 0.5 seconds to process this file 
-  This file was processed using version 7.8.0.9445