Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/13 04:27:55.04

File Details:


Observation File: mimc073e00.24o
GPS Navigation File: mimc073e00.24n
GLONASS Navigation File: mimc073e00.24g
Galileo Navigation File: mimc073e00.24l
BeiDou Navigation File: mimc073e00.24f
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:  -5.6 m dX  -1.1 m dY  -1.6 m dZ 
Diff. Est-Header:  5.9 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/13 04:00:00.00 GPS 
Time of last obs:  2024/03/13 04:14:59.00 GPS 
Session length:  14.98 minutes 
GPS week:  2305, day 3 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  37 
Num SVs with nav:  90 
Total GPS orbits:  55 
Total GLONASS orbits:  31 
Total Galileo orbits:  293 
Total BeiDou orbits:  44 
SVs with obs:  G5 G10 G13 G15 G18 G23 G24 G27 G29 G30 R2 R3 R4 R5 R11 R12 R17 R18 R19 E4 E5 E9 E10 E11 E12 E34 E36 C14 C24 C26 C27 C28 C30 C32 C33 C41 C42  
SVs without obs:  G1 G2 G3 G4 G6 G7 G8 G9 G11 G12 G14 G16 G17 G19 G20 G21 G22 G25 G26 G28 G31 G32 R1 R6 R7 R8 R9 R10 R13 R14 R15 R16 R20 R21 R22 R23 R24 E1 E2 E3 E6 E7 E8 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26 E27 E28 E29 E30 E31 E32 E33 E35 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C15 C16 C17 C18 C19 C20 C21 C22 C23 C25 C29 C31 C34 C35 C36 C37 C38 C39 C40 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 I8 I9  
SVs with nav:  G3 G4 G5 G6 G7 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R22 R23 R24 E2 E4 E5 E7 E9 E10 E11 E12 E19 E24 E25 E26 E30 E31 E33 E34 C6 C11 C12 C14 C16 C21 C22 C23 C24 C25 C26 C27 C28 C30 C32 C33 C34 C37 C39 C41 C42 C43 C44 C46 C58  
SVs without nav:  G1 G2 G8 G21 G32 R20 R21 E1 E3 E6 E8 E13 E14 E15 E16 E17 E18 E20 E21 E22 E23 E27 E28 E29 E32 E35 E36 C1 C2 C3 C4 C5 C7 C8 C9 C10 C13 C15 C17 C18 C19 C20 C29 C31 C35 C36 C38 C40 C45 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 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 16 slips 
Multipath:  Pass  Value 0.03m MP1 / 0.04m 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 0 slips, Threshold 29 slips 
Multipath:  Pass  Value 0.03m MP1 / 0.02m 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 22 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.04m MP5a / 0.03m MP5b / 0.01m 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 34 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.07m MP2b / 0.03m MP3, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  32272 
Num possible obs > 0°:  33845 
Num obs with invalid nav:  0 
Num obs without nav:  900 
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°:  900  (100.0 %) 
Epochs with full data > 15°:  0  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.7  2.8  2.7 
GDOP  3.3  3.4  3.3 

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 
None   

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000007 ms (at 2024/03/13 04:00:41.00) 
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°:  32272  8956  7825  6491  9000  -  - 
Num possible obs > 0°:  33845  9000  8100  7200  9545  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  900  -  -  900  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  22090  8036  4796  3600  5658  -  - 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 %  -  - 
Num possible obs > 15°:  22090  8036  4796  3600  5658  -  - 
Num complete obs > 15°:  8036  8036  -  -  -  -  - 
% complete obs > 15°:   36.4 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  24.5   8.9   5.3   4.0   6.3   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.930   1.888   2.000   -  -  -  - 
Obs E5b/B2I:  0.486   -  -  1.000   0.159   -  - 
Obs L5/E5a/B2a:  0.696   0.560   -  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:  0.025 m  0.030 m  0.027 m  0.014 m  0.025 m  -  - 
MP (L2/B1C) RMS:  0.031 m  0.041 m  0.016 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.039 m  0.036 m  -  0.041 m  -  -  - 
MP (E5b/B2I) RMS:  0.040 m  -  -  0.034 m  0.067 m  -  - 
MP (E5a+b/B2a+b) RMS:  0.015 m  -  -  0.015 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.032 m  -  -  -  0.032 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 100.0 %
100.0 %
100.0 %
100.0 %
L2P 100.0 %
100.0 %
100.0 %
100.0 %
L2S 88.8 %
88.8 %
88.8 %
88.8 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 69.6 %
69.6 %
69.6 %
69.6 %
L7I 15.9 %
15.9 %
15.9 %
15.9 %
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
G5 21.85° 27.16° 900 900 (100.0 %)
0 (0.0 %) 0
G10 15.27° 20.24° 900 900 (100.0 %)
0 (0.0 %) 0
G13 33.86° 39.82° 900 900 (100.0 %)
0 (0.0 %) 0
G15 66.34° 72.23° 900 900 (100.0 %)
0 (0.0 %) 0
G18 79.86° 83.49° 900 900 (100.0 %)
0 (0.0 %) 0
G23 48.69° 54.19° 900 900 (100.0 %)
0 (0.0 %) 0
G24 22.26° 28.05° 900 900 (100.0 %)
0 (0.0 %) 0
G27 16.32° 19.64° 900 900 (100.0 %)
0 (0.0 %) 0
G29 15.00° 20.98° 836 836 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R2 15.01° 21.38° 885 885 (100.0 %)
0 (0.0 %) 0
R3 65.00° 72.40° 900 900 (100.0 %)
0 (0.0 %) 0
R4 47.01° 53.38° 900 900 (100.0 %)
0 (0.0 %) 0
R17 15.01° 17.57° 311 311 (100.0 %)
0 (0.0 %) 0
R18 56.85° 65.96° 900 900 (100.0 %)
0 (0.0 %) 0
R19 62.02° 68.90° 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 60.19° 64.17° 900 900 (100.0 %)
0 (0.0 %) 0
E9 54.69° 60.82° 900 900 (100.0 %)
0 (0.0 %) 0
E10 33.29° 38.51° 900 900 (100.0 %)
0 (0.0 %) 0
E11 61.98° 67.76° 900 900 (100.0 %)
0 (0.0 %) 0
E36 - - 0 0 (-)
900 (-) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C14 25.26° 30.48° 900 900 (100.0 %)
0 (0.0 %) 0
C27 55.76° 56.78° 900 900 (100.0 %)
0 (0.0 %) 0
C28 43.23° 49.91° 900 900 (100.0 %)
0 (0.0 %) 0
C30 15.32° 20.07° 900 900 (100.0 %)
0 (0.0 %) 0
C32 15.00° 16.38° 258 258 (100.0 %)
0 (0.0 %) 0
C33 52.02° 57.83° 900 900 (100.0 %)
0 (0.0 %) 0
C41 65.36° 70.49° 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
G5 4.1 %
0.0 %
0.0 %
0.0 %
100.0 %
G10 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
G13 4.1 %
0.0 %
100.0 %
0.0 %
100.0 %
G15 4.1 %
0.0 %
0.0 %
0.0 %
100.0 %
G18 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
G23 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
G24 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
G27 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
G29 3.8 %
0.0 %
0.0 %
0.0 %
100.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R2 4.0 %
0.0 %
0.0 %
0.0 %
R3 4.1 %
0.0 %
0.0 %
0.0 %
R4 4.1 %
0.0 %
0.0 %
0.0 %
R17 1.4 %
0.0 %
0.0 %
0.0 %
R18 4.1 %
0.0 %
0.0 %
0.0 %
R19 4.1 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E4 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E9 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E10 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %
E11 4.1 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I Missing L6I
C14 4.1 %
0.0 %
0.0 %
0.0 %
C27 4.1 %
0.0 %
100.0 %
0.0 %
C28 4.1 %
0.0 %
100.0 %
0.0 %
C30 4.1 %
0.0 %
100.0 %
0.0 %
C32 1.2 %
0.0 %
100.0 %
0.0 %
C33 4.1 %
0.0 %
100.0 %
0.0 %
C41 4.1 %
0.0 %
100.0 %
0.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G5 0.0 %
0.0 %
0.0 %
100.0 %
G10 0.0 %
0.0 %
0.0 %
0.0 %
G13 0.0 %
100.0 %
0.0 %
100.0 %
G15 0.0 %
0.0 %
0.0 %
100.0 %
G18 0.0 %
0.0 %
0.0 %
0.0 %
G23 0.0 %
0.0 %
0.0 %
0.0 %
G24 0.0 %
0.0 %
0.0 %
0.0 %
G27 0.0 %
0.0 %
0.0 %
0.0 %
G29 0.0 %
0.0 %
0.0 %
100.0 %

SV GLONASS Missing C1C Missing C2C Missing C2P
R2 0.0 %
0.0 %
0.0 %
R3 0.0 %
0.0 %
0.0 %
R4 0.0 %
0.0 %
0.0 %
R17 0.0 %
0.0 %
0.0 %
R18 0.0 %
0.0 %
0.0 %
R19 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 %
E10 0.0 %
0.0 %
0.0 %
0.0 %
E11 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C7I Missing C6I
C14 0.0 %
0.0 %
0.0 %
C27 0.0 %
100.0 %
0.0 %
C28 0.0 %
100.0 %
0.0 %
C30 0.0 %
100.0 %
0.0 %
C32 0.0 %
100.0 %
0.0 %
C33 0.0 %
100.0 %
0.0 %
C41 0.0 %
100.0 %
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
4.0 %
75 - 80 0
0
0
0
0
0
0.1 %
70 - 75 0
0
0
0
0
0
3.4 %
65 - 70 0
0
0
0
0
0
13.6 %
60 - 65 0
0
0
0
0
0
10.6 %
55 - 60 0
0
0
0
0
0
10.8 %
50 - 55 0
0
0
0
0
0
7.6 %
45 - 50 0
0
0
0
0
0
5.8 %
40 - 45 0
0
0
0
0
0
1.1 %
35 - 40 0
0
0
0
0
0
6.0 %
30 - 35 0
0
0
0
0
0
2.5 %
25 - 30 0
0
0
0
0
0
7.5 %
20 - 25 0
0
0
0
0
0
6.1 %
15 - 20 0
0
0
0
0
0
20.9 %
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
G5 43.3
43.7
-
G10 41.0
41.3
46.2
G13 47.6
43.2
-
G15 53.2
53.3
-
G18 53.9
58.1
60.9
G23 50.0
52.5
55.1
G24 41.8
43.6
49.1
G27 38.0
41.7
46.4
G29 40.5
41.3
-
Average GPS: 45.5
46.5
51.5

SV GLONASS G1 G2
R2 43.3
42.1
R3 53.1
51.8
R4 51.1
49.4
R17 41.5
41.1
R18 52.6
51.1
R19 41.6
49.5
Average GLONASS: 47.2
47.5

SV Galileo E1 E5a E5b E5a+b
E4 53.9
55.1
55.3
58.4
E9 53.4
54.4
54.9
57.8
E10 48.2
50.4
50.5
53.6
E11 50.9
51.2
51.7
54.7
Average Galileo: 51.6
52.8
53.1
56.1

SV BeiDou B1I B2I B3I
C14 42.3
48.4
45.3
C27 52.3
- 51.2
C28 50.6
- 48.4
C30 39.8
- 40.6
C32 40.6
- 42.1
C33 52.1
- 52.1
C41 53.0
- 53.4
Average BeiDou: 47.2
48.4
47.6

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G5 24.5 ° 0.02 m
0.04 m
-
G10 17.8 ° 0.07 m
0.11 m
0.05 m
G13 36.8 ° 0.02 m
0.03 m
-
G15 69.3 ° 0.01 m
0.02 m
-
G18 81.7 ° 0.01 m
0.01 m
0.01 m
G23 51.4 ° 0.01 m
0.01 m
0.01 m
G24 25.2 ° 0.05 m
0.05 m
0.06 m
G27 18.0 ° 0.05 m
0.05 m
0.05 m
G29 18.0 ° 0.02 m
0.04 m
-
Average GPS: - 0.03 m
0.04 m
0.04 m

SV GLONASS Av Elev MP (G1) MP (G2)
R2 18.2 ° 0.05 m
0.03 m
R3 68.7 ° 0.01 m
0.02 m
R4 50.2 ° 0.02 m
0.01 m
R17 16.3 ° 0.05 m
0.02 m
R18 61.4 ° 0.01 m
0.01 m
R19 65.5 ° 0.01 m
0.01 m
Average GLONASS: - 0.03 m
0.02 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E4 62.2 ° 0.01 m
0.04 m
0.03 m
0.02 m
E9 57.8 ° 0.01 m
0.01 m
0.01 m
0.01 m
E10 35.9 ° 0.03 m
0.07 m
0.07 m
0.02 m
E11 64.9 ° 0.01 m
0.04 m
0.02 m
0.01 m
Average Galileo: - 0.01 m
0.04 m
0.03 m
0.01 m

SV BeiDou Av Elev MP (B1I) MP (B2I) MP (B3I)
C14 27.9 ° 0.05 m
0.07 m
0.07 m
C27 56.3 ° 0.01 m
- 0.01 m
C28 46.6 ° 0.02 m
- 0.03 m
C30 17.7 ° 0.04 m
- 0.05 m
C32 15.7 ° 0.03 m
- 0.01 m
C33 54.9 ° 0.01 m
- 0.02 m
C41 67.9 ° 0.01 m
- 0.02 m
Average BeiDou: - 0.02 m
0.07 m
0.03 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 0.01 m
0.01 m
0.01 m
- - - -
75 - 80 - - - - - - -
70 - 75 0.01 m
0.02 m
- - - - -
65 - 70 0.01 m
0.02 m
0.03 m
0.03 m
0.01 m
0.02 m
-
60 - 65 0.01 m
0.01 m
0.04 m
0.03 m
0.01 m
- -
55 - 60 0.01 m
0.01 m
0.01 m
0.01 m
0.01 m
0.01 m
-
50 - 55 0.01 m
0.01 m
0.01 m
- - 0.02 m
-
45 - 50 0.02 m
0.01 m
0.01 m
- - 0.03 m
-
40 - 45 0.02 m
- - - - 0.04 m
-
35 - 40 0.02 m
0.03 m
0.08 m
0.07 m
0.03 m
- -
30 - 35 0.04 m
0.05 m
0.05 m
0.08 m
0.02 m
0.06 m
-
25 - 30 0.04 m
0.05 m
0.06 m
0.07 m
- 0.08 m
-
20 - 25 0.03 m
0.04 m
0.07 m
- - - -
15 - 20 0.05 m
0.06 m
0.05 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 2024/03/13 04:14:59.00

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