Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 19:01:30.25

File Details:


Observation File: mibx072s30.24o
GPS Navigation File: mibx072s30.24n
GLONASS Navigation File: mibx072s30.24g
Galileo Navigation File: mibx072s30.24l
BeiDou Navigation File: mibx072s30.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  BARAGA  MIBX   
Observer/Agency:  Shawn Roy  Michigan DOT   
Receiver #/Type/Vers:  2091024  LEICA GR50  4.61/7.811 
Antenna #/Type:  18274009  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  113581.947  -4375489.383  4623982.371 
Approx Position (plh):  46° 45' 50.77595" N  88° 30' 46.83926" W  194.707m 
Diff. Est-Header:  -6.2 m dX  -2.0 m dY  2.7 m dZ 
Diff. Est-Header:  7.1 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 18:30:00.00 GPS 
Time of last obs:  2024/03/12 18:44:59.00 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:  33 
Num SVs with nav:  87 
Total GPS orbits:  54 
Total GLONASS orbits:  31 
Total Galileo orbits:  276 
Total BeiDou orbits:  33 
SVs with obs:  G2 G3 G6 G7 G8 G13 G14 G17 G19 G21 G22 G30 R3 R4 R10 R11 R12 R20 R21 R22 R23 E4 E9 E13 E21 E26 E31 E33 C24 C25 C26 C34 C44  
SVs without obs:  G1 G4 G5 G9 G10 G11 G12 G15 G16 G18 G20 G23 G24 G25 G26 G27 G28 G29 G31 G32 R1 R2 R5 R6 R7 R8 R9 R13 R14 R15 R16 R17 R18 R19 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 C29 C30 C31 C32 C33 C35 C36 C37 C38 C39 C40 C41 C42 C43 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:  G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G24 G26 G27 G28 G29 G30 G31 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 E4 E5 E7 E9 E13 E15 E19 E21 E26 E27 E30 E31 E33 E34 C8 C12 C13 C14 C19 C21 C22 C24 C25 C26 C27 C29 C30 C33 C34 C35 C36 C38 C41 C42 C44 C45 C46 C57  
SVs without nav:  G1 G12 G23 G25 G32 R13 R14 E1 E2 E3 E6 E8 E10 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 C28 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 15 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.03m MP2 / 0.02m 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 22 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.01m 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 30 slips 
Multipath:  Pass  Value 0.03m MP1 / 0.05m MP5a / 0.04m MP5b / 0.02m 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 26 slips 
Multipath:  Pass  Value 0.02m MP1 / 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°:  24850 
Num possible obs > 0°:  33140 
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  2.5  2.6  2.6 
GDOP  3.1  3.2  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  42.13° / 46.45°  212.02° / 214.15° 
Total:  14.983 (898 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000004 ms (at 2024/03/12 18:30:09.00) 
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°:  24850  9146  4931  6273  4500  -  - 
Num possible obs > 0°:  33140  12507  7494  7200  5939  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  -  -  -  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  20574  7684  3600  4979  4311  -  - 
% obs > 15°:   95.8 %  100.0 %  100.0 %  100.0 %  82.7 %  -  - 
Num possible obs > 15°:  21474  7684  3600  4979  5211  -  - 
Num complete obs > 15°:  7684  7684  -  -  -  -  - 
% complete obs > 15°:   35.8 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  22.9   8.5   4.0   5.5   4.8   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.601   1.414   2.000   -  -  -  - 
Obs E5b/B2I:  1.000   -  -  1.000   -  -  - 
Obs L5/E5a/B2a:  0.535   0.234   -  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:  0.018 m  0.014 m  0.013 m  0.026 m  0.022 m  -  - 
MP (L2/B1C) RMS:  0.028 m  0.034 m  0.014 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.042 m  0.020 m  -  0.049 m  -  -  - 
MP (E5b/B2I) RMS:  0.035 m  -  -  0.035 m  -  -  - 
MP (E5a+b/B2a+b) RMS:  0.016 m  -  -  0.016 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.030 m  -  -  -  0.030 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 41.4 %
41.4 %
41.4 %
41.4 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 53.5 %
53.5 %
53.5 %
53.5 %
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 41.85° 45.88° 900 900 (100.0 %)
0 (0.0 %) 0
G7 15.00° 18.65° 484 484 (100.0 %)
0 (0.0 %) 0
G13 15.13° 19.23° 900 900 (100.0 %)
0 (0.0 %) 0
G14 81.70° 84.30° 900 900 (100.0 %)
0 (0.0 %) 0
G17 65.56° 71.73° 900 900 (100.0 %)
0 (0.0 %) 0
G19 34.66° 40.70° 900 900 (100.0 %)
0 (0.0 %) 0
G21 27.21° 32.13° 900 900 (100.0 %)
0 (0.0 %) 0
G22 65.62° 71.85° 900 900 (100.0 %)
0 (0.0 %) 0
G30 37.72° 44.83° 900 900 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R11 46.45° 53.75° 900 900 (100.0 %)
0 (0.0 %) 0
R12 60.31° 68.53° 900 900 (100.0 %)
0 (0.0 %) 0
R21 57.16° 64.82° 900 900 (100.0 %)
0 (0.0 %) 0
R22 55.50° 64.44° 900 900 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E9 15.00° 16.32° 479 479 (100.0 %)
0 (0.0 %) 0
E13 30.28° 34.08° 900 900 (100.0 %)
0 (0.0 %) 0
E21 28.90° 33.29° 900 900 (100.0 %)
0 (0.0 %) 0
E26 56.19° 60.06° 900 900 (100.0 %)
0 (0.0 %) 0
E31 36.43° 41.13° 900 900 (100.0 %)
0 (0.0 %) 0
E33 24.61° 30.58° 900 900 (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 72.44° 75.04° 900 900 (100.0 %)
0 (0.0 %) 0
C25 19.78° 25.12° 900 900 (100.0 %)
0 (0.0 %) 0
C26 41.18° 47.63° 900 900 (100.0 %)
0 (0.0 %) 0
C34 15.00° 19.39° 711 711 (100.0 %)
0 (0.0 %) 0
C44 66.33° 73.14° 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 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G7 2.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G13 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G14 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
G17 4.4 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G21 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G22 4.4 %
0.0 %
100.0 %
0.0 %
100.0 %
G30 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R11 4.4 %
0.0 %
0.0 %
0.0 %
R12 4.4 %
0.0 %
0.0 %
0.0 %
R21 4.4 %
0.0 %
0.0 %
0.0 %
R22 4.4 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E9 2.3 %
0.0 %
0.0 %
0.0 %
0.0 %
E13 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E21 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E26 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E31 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %
E33 4.4 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L6I
C24 4.4 %
0.0 %
0.0 %
C25 4.4 %
0.0 %
0.0 %
C26 4.4 %
0.0 %
0.0 %
C34 3.5 %
0.0 %
0.0 %
C44 4.4 %
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 %
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
R11 0.0 %
0.0 %
0.0 %
R12 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
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 %
C25 0.0 %
0.0 %
C26 0.0 %
0.0 %
C34 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
4.4 %
75 - 80 0
0
0
0
0
0
0.1 %
70 - 75 0
0
0
0
0
0
8.8 %
65 - 70 0
0
0
0
0
0
10.4 %
60 - 65 0
0
0
0
0
0
7.5 %
55 - 60 0
0
0
0
0
0
8.1 %
50 - 55 0
0
0
0
0
0
2.3 %
45 - 50 0
0
0
0
0
0
4.9 %
40 - 45 0
0
0
0
0
0
10.4 %
35 - 40 0
0
0
0
0
0
8.4 %
30 - 35 0
0
0
0
0
0
10.3 %
25 - 30 0
0
0
0
0
0
7.3 %
20 - 25 0
0
0
0
0
0
4.4 %
15 - 20 0
0
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 49.1
47.5
-
G7 40.0
41.2
-
G13 39.5
36.9
-
G14 52.9
58.1
60.5
G17 51.9
53.1
-
G19 46.8
46.4
-
G21 44.3
42.6
-
G22 51.4
51.2
-
G30 47.7
47.7
53.5
Average GPS: 47.1
47.2
57.0

SV GLONASS G1 G2
R11 51.5
49.7
R12 53.7
50.8
R21 52.8
50.2
R22 53.1
51.2
Average GLONASS: 52.8
50.5

SV Galileo E1 E5a E5b E5a+b
E9 40.6
44.0
43.9
47.2
E13 46.1
48.8
49.4
52.3
E21 45.5
48.8
48.7
51.9
E26 52.7
54.3
54.6
57.7
E31 48.2
50.7
50.7
53.9
E33 44.5
47.9
47.7
51.0
Average Galileo: 46.3
49.1
49.2
52.3

SV BeiDou B1I B3I
C24 54.2
54.2
C25 42.3
44.0
C26 49.8
48.7
C34 40.5
41.5
C44 53.7
53.3
Average BeiDou: 48.1
48.3

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G2 43.9 ° 0.01 m
0.02 m
-
G7 16.8 ° 0.01 m
0.02 m
-
G13 17.2 ° 0.02 m
0.08 m
-
G14 83.0 ° 0.01 m
0.04 m
0.01 m
G17 68.6 ° 0.01 m
0.01 m
-
G19 37.7 ° 0.01 m
0.03 m
-
G21 29.7 ° 0.03 m
0.06 m
-
G22 68.7 ° 0.01 m
0.01 m
-
G30 41.3 ° 0.01 m
0.02 m
0.03 m
Average GPS: - 0.01 m
0.03 m
0.02 m

SV GLONASS Av Elev MP (G1) MP (G2)
R11 50.1 ° 0.01 m
0.01 m
R12 64.4 ° 0.02 m
0.02 m
R21 61.0 ° 0.02 m
0.01 m
R22 60.0 ° 0.01 m
0.01 m
Average GLONASS: - 0.01 m
0.01 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E9 15.7 ° 0.04 m
0.06 m
0.06 m
0.04 m
E13 32.2 ° 0.06 m
0.11 m
0.05 m
0.01 m
E21 31.1 ° 0.01 m
0.02 m
0.03 m
0.01 m
E26 58.1 ° 0.01 m
0.02 m
0.02 m
0.01 m
E31 38.8 ° 0.02 m
0.04 m
0.03 m
0.01 m
E33 27.6 ° 0.02 m
0.04 m
0.03 m
0.01 m
Average Galileo: - 0.03 m
0.05 m
0.04 m
0.02 m

SV BeiDou Av Elev MP (B1I) MP (B3I)
C24 73.7 ° 0.02 m
0.03 m
C25 22.4 ° 0.03 m
0.04 m
C26 44.4 ° 0.01 m
0.02 m
C34 17.2 ° 0.03 m
0.02 m
C44 69.7 ° 0.01 m
0.03 m
Average BeiDou: - 0.02 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
0.04 m
0.01 m
- - - -
75 - 80 - - - - - - -
70 - 75 0.02 m
0.01 m
- - - 0.04 m
-
65 - 70 0.01 m
0.01 m
- - - 0.02 m
-
60 - 65 0.01 m
0.02 m
- - - - -
55 - 60 0.01 m
0.02 m
0.02 m
0.02 m
0.01 m
- -
50 - 55 0.01 m
0.01 m
- - - - -
45 - 50 0.01 m
0.02 m
- - - 0.02 m
-
40 - 45 0.01 m
0.02 m
0.03 m
0.03 m
0.01 m
0.03 m
-
35 - 40 0.01 m
0.03 m
0.04 m
0.03 m
0.01 m
- -
30 - 35 0.04 m
0.04 m
0.07 m
0.04 m
0.01 m
- -
25 - 30 0.02 m
0.08 m
0.04 m
0.03 m
0.01 m
- -
20 - 25 0.03 m
- - - - 0.04 m
-
15 - 20 0.02 m
0.06 m
0.06 m
0.06 m
0.04 m
0.02 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 18:44:59.00

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