Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 14:52:07.59

File Details:


Observation File: ohwi072o15.24o
GPS Navigation File: ohwi072o15.24n
GLONASS Navigation File: ohwi072o15.24g
Galileo Navigation File: ohwi072o15.24l
BeiDou Navigation File: ohwi072o15.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  WILLIAMS  OHWI   
Observer/Agency:  Dave Beiter  OHIO DOT   
Receiver #/Type/Vers:  1294-13873  TPS NET-G5  0.00 
Antenna #/Type:  76213593  TPSCR.G5 TPSH   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  453189.334  -4756591.876  4211143.963 
Approx Position (plh):  41° 34' 54.79455" N  84° 33' 27.04425" W  247.756m 
Diff. Est-Header:  -6.5 m dX  0.8 m dY  -2.5 m dZ 
Diff. Est-Header:  7.0 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 14:15:00.00 GPS 
Time of last obs:  2024/03/12 14:29:59.00 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:  83 
Total GPS orbits:  47 
Total GLONASS orbits:  31 
Total Galileo orbits:  210 
Total BeiDou orbits:  34 
SVs with obs:  G4 G7 G8 G9 G16 G26 G27 G30 G31 R1 R7 R8 R9 R11 R16 R18 R19 R20 E4 E7 E15 E19 E21 E27 E30 E34 C14 C21 C22 C26 C29 C30 C36  
SVs without obs:  G1 G2 G3 G5 G6 G10 G11 G12 G13 G14 G15 G17 G18 G19 G20 G21 G22 G23 G24 G25 G28 G29 G32 R2 R3 R4 R5 R6 R10 R12 R13 R14 R15 R17 R21 R22 R23 R24 E1 E2 E3 E5 E6 E8 E9 E10 E11 E12 E13 E14 E16 E17 E18 E20 E22 E23 E24 E25 E26 E28 E29 E31 E32 E33 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C15 C16 C17 C18 C19 C20 C23 C24 C25 C27 C28 C31 C32 C33 C34 C35 C37 C38 C39 C40 C41 C42 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:  G2 G3 G4 G6 G7 G8 G9 G10 G12 G16 G18 G20 G21 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R1 R3 R4 R5 R6 R7 R8 R9 R10 R11 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 E2 E3 E4 E7 E8 E10 E13 E15 E19 E21 E25 E26 E27 E30 E33 E34 C8 C12 C13 C14 C19 C20 C21 C22 C26 C27 C28 C29 C30 C32 C35 C36 C37 C38 C42 C44 C45 C46  
SVs without nav:  G1 G5 G11 G13 G14 G15 G17 G19 G22 R2 R12 E1 E5 E6 E9 E11 E12 E14 E16 E17 E18 E20 E22 E23 E24 E28 E29 E31 E32 E35 E36 C1 C2 C3 C4 C5 C6 C7 C9 C10 C11 C15 C16 C17 C18 C23 C24 C25 C31 C33 C34 C39 C40 C41 C43 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 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 11 slips 
Multipath:  Pass  Value 0.14m MP1 / 0.20m MP2 / 0.08m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Pass   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 1 slips, Threshold 27 slips 
Multipath:  Pass  Value 0.15m MP1 / 0.08m MP2, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Fail   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 16 slips 
Multipath:  Pass  Value 0.14m MP1 / 0.07m MP5a / 0.07m MP5b / 0.04m 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 28 slips 
Multipath:  Pass  Value 0.20m MP1 / 0.10m MP3, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  27840 
Num possible obs > 0°:  36351 
Num obs with invalid nav:  0 
Num obs without nav:  899 
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  4.4  4.7  4.7 
GDOP  5.5  5.9  5.8 

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 
R10  14.983  1 / 900  49.63° / 52.10°  302.77° / 310.60° 
C42  14.983  1 / 900  23.09° / 24.47°  307.75° / 301.72° 
C45  14.983  1 / 900  73.03° / 73.33°  348.54° / 2.75° 
Total:  44.950 (2697 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000012 ms (at 2024/03/12 14:27:23.00) 
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°:  27840  7231  8099  6210  6300  -  - 
Num possible obs > 0°:  36351  9900  8719  7769  9963  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  899  -  899  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  17411  5598  4500  2700  4613  -  - 
% obs > 15°:   86.6 %  100.0 %  83.3 %  100.0 %  71.9 %  -  - 
Num possible obs > 15°:  20111  5598  5400  2700  6413  -  - 
Num complete obs > 15°:  5598  5598  -  -  -  -  - 
% complete obs > 15°:   27.8 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  19.3   6.2   5.0   3.0   5.1   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.000   1.000   1.000   -  -  -  - 
Obs E5b/B2I:  0.369   -  -  1.000   -  -  - 
Obs L5/E5a/B2a:  0.500   0.369   -  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°:  1  -  1  -  -  -  - 
% slips per complete obs:  0.018 %  -  -  -  -  -  - 
Num complete obs per slip:  5598   -  -  -  -  -  - 
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:  0.156 m  0.140 m  0.147 m  0.143 m  0.197 m  -  - 
MP (L2/B1C) RMS:  0.150 m  0.199 m  0.083 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.077 m  0.082 m  -  0.068 m  -  -  - 
MP (E5b/B2I) RMS:  0.070 m  -  -  0.070 m  -  -  - 
MP (E5a+b/B2a+b) RMS:  0.042 m  -  -  0.042 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.103 m  -  -  -  0.103 m  -  - 
MP (G3) RMS:  -  -  -  -  -  -  - 

Extended Quality Information:


Tracking by observation type > 15°: 
Type Code Phase SNR Doppler
L1C 100.0 %
100.0 %
100.0 %
0.0 %
L1P 100.0 %
100.0 %
100.0 %
0.0 %
L1W 83.9 %
83.9 %
83.9 %
0.0 %
L1I 100.0 %
100.0 %
100.0 %
0.0 %
L1X 100.0 %
100.0 %
100.0 %
0.0 %
L2C 100.0 %
100.0 %
100.0 %
0.0 %
L2P 100.0 %
100.0 %
100.0 %
0.0 %
L2W 100.0 %
100.0 %
100.0 %
0.0 %
L2X 83.9 %
83.9 %
83.9 %
0.0 %
L5X 78.3 %
78.3 %
78.3 %
0.0 %
L7I 0.0 %
0.0 %
0.0 %
0.0 %
L7X 100.0 %
100.0 %
100.0 %
0.0 %
L8X 100.0 %
100.0 %
100.0 %
0.0 %
L6I 100.0 %
100.0 %
100.0 %
0.0 %

Tracking by satellite > 15°: 
SV GPS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
G4 42.74° 50.20° 900 900 (100.0 %)
0 (0.0 %) 0
G7 34.11° 39.61° 900 900 (100.0 %)
0 (0.0 %) 0
G8 47.25° 54.49° 900 900 (100.0 %)
0 (0.0 %) 0
G9 58.57° 59.24° 900 900 (100.0 %)
0 (0.0 %) 0
G16 39.54° 45.86° 900 900 (100.0 %)
0 (0.0 %) 0
G26 15.00° 16.15° 198 198 (100.0 %)
0 (0.0 %) 0
G27 57.57° 57.91° 900 900 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R7 33.75° 41.51° 900 900 (100.0 %)
0 (0.0 %) 0
R8 45.57° 45.98° 900 900 (100.0 %)
0 (0.0 %) 0
R9 51.70° 55.80° 900 900 (100.0 %)
0 (0.0 %) 1
R10 - - 900 0 (0.0 %)
0 (0.0 %) 0
R18 18.05° 20.85° 900 900 (100.0 %)
0 (0.0 %) 0
R19 29.32° 32.46° 900 900 (100.0 %)
0 (0.0 %) 0
R20 - - 0 0 (-)
899 (-) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E19 57.97° 58.93° 900 900 (100.0 %)
0 (0.0 %) 0
E21 62.99° 66.71° 900 900 (100.0 %)
0 (0.0 %) 0
E27 51.73° 56.59° 900 900 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C21 32.62° 36.79° 900 900 (100.0 %)
0 (0.0 %) 0
C22 15.00° 15.71° 113 113 (100.0 %)
0 (0.0 %) 0
C26 27.44° 31.91° 900 900 (100.0 %)
0 (0.0 %) 0
C29 33.30° 38.23° 900 900 (100.0 %)
0 (0.0 %) 0
C30 27.37° 28.64° 900 900 (100.0 %)
0 (0.0 %) 0
C36 30.93° 35.38° 900 900 (100.0 %)
0 (0.0 %) 0
C42 - - 900 0 (0.0 %)
0 (0.0 %) 0
C45 - - 900 0 (0.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV GPS Observations Missing L1C Missing L1W Missing L2W Missing L2X Missing L5X
G4 5.2 %
0.0 %
100.0 %
0.0 %
0.0 %
0.0 %
G7 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
100.0 %
G8 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G9 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G16 5.2 %
0.0 %
0.0 %
0.0 %
100.0 %
100.0 %
G26 1.1 %
0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G27 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L1P Missing L2C Missing L2P
R7 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
R8 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
R9 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
R18 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
R19 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %

SV Galileo Observations Missing L1X Missing L5X Missing L7X Missing L8X
E19 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E21 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %
E27 5.2 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I Missing L6I
C21 5.2 %
0.0 %
100.0 %
0.0 %
C22 0.6 %
0.0 %
100.0 %
0.0 %
C26 5.2 %
0.0 %
100.0 %
0.0 %
C29 5.2 %
0.0 %
100.0 %
0.0 %
C30 5.2 %
0.0 %
100.0 %
0.0 %
C36 5.2 %
0.0 %
100.0 %
0.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C1W Missing C2W Missing C2X Missing C5X
G4 0.0 %
100.0 %
0.0 %
0.0 %
0.0 %
G7 0.0 %
0.0 %
0.0 %
0.0 %
100.0 %
G8 0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G9 0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G16 0.0 %
0.0 %
0.0 %
100.0 %
100.0 %
G26 0.0 %
0.0 %
0.0 %
0.0 %
0.0 %
G27 0.0 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Missing C1C Missing C1P Missing C2C Missing C2P
R7 0.0 %
0.0 %
0.0 %
0.0 %
R8 0.0 %
0.0 %
0.0 %
0.0 %
R9 0.0 %
0.0 %
0.0 %
0.0 %
R18 0.0 %
0.0 %
0.0 %
0.0 %
R19 0.0 %
0.0 %
0.0 %
0.0 %

SV Galileo Missing C1X Missing C5X Missing C7X Missing C8X
E19 0.0 %
0.0 %
0.0 %
0.0 %
E21 0.0 %
0.0 %
0.0 %
0.0 %
E27 0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Missing C2I Missing C7I Missing C6I
C21 0.0 %
100.0 %
0.0 %
C22 0.0 %
100.0 %
0.0 %
C26 0.0 %
100.0 %
0.0 %
C29 0.0 %
100.0 %
0.0 %
C30 0.0 %
100.0 %
0.0 %
C36 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
0.0 %
75 - 80 0
0
0
0
0
0
0.0 %
70 - 75 0
0
0
0
0
0
0.0 %
65 - 70 0
0
0
0
0
0
2.5 %
60 - 65 0
0
0
0
0
0
2.7 %
55 - 60 0
0
0
0
0
0
18.2 %
50 - 55 0
1
0
0
0
0
11.0 %
45 - 50 0
0
0
0
0
0
11.3 %
40 - 45 0
0
0
0
0
0
6.7 %
35 - 40 0
0
0
0
0
0
14.2 %
30 - 35 0
0
0
0
0
0
17.4 %
25 - 30 0
0
0
0
0
0
9.1 %
20 - 25 0
0
0
0
0
0
1.8 %
15 - 20 0
0
0
0
0
0
5.1 %
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
G4 48.2
51.3
53.3
G7 48.1
47.1
-
G8 49.7
51.6
55.3
G9 50.8
52.4
56.6
G16 48.2
39.3
-
G26 39.4
41.3
46.0
G27 51.1
52.2
56.8
Average GPS: 47.9
47.9
53.6

SV GLONASS G1 G2
R7 52.8
51.6
R8 53.6
53.8
R9 54.7
55.2
R18 48.3
46.7
R19 38.6
47.0
Average GLONASS: 49.6
50.9

SV Galileo E1 E5a E5b E5a+b
E19 45.0
49.9
50.2
50.0
E21 49.4
55.2
56.1
55.7
E27 49.5
53.8
54.3
54.1
Average Galileo: 47.9
53.0
53.5
53.3

SV BeiDou B1I B3I
C21 49.3
51.8
C22 42.9
47.0
C26 47.9
49.3
C29 49.7
51.3
C30 48.4
49.0
C36 48.7
51.8
Average BeiDou: 47.8
50.0

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G4 46.5 ° 0.12 m
0.18 m
0.07 m
G7 36.9 ° 0.13 m
0.36 m
-
G8 50.9 ° 0.11 m
0.14 m
0.05 m
G9 58.9 ° 0.12 m
0.14 m
0.05 m
G16 42.7 ° 0.12 m
0.15 m
-
G26 15.6 ° 0.27 m
0.32 m
0.18 m
G27 57.7 ° 0.09 m
0.12 m
0.04 m
Average GPS: - 0.14 m
0.20 m
0.08 m

SV GLONASS Av Elev MP (G1) MP (G2)
R7 37.6 ° 0.17 m
0.07 m
R8 45.8 ° 0.07 m
0.07 m
R9 53.7 ° 0.11 m
0.04 m
R18 19.5 ° 0.14 m
0.15 m
R19 30.9 ° 0.24 m
0.09 m
Average GLONASS: - 0.15 m
0.08 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E19 58.5 ° 0.17 m
0.07 m
0.09 m
0.05 m
E21 64.9 ° 0.11 m
0.06 m
0.06 m
0.03 m
E27 54.2 ° 0.14 m
0.08 m
0.06 m
0.04 m
Average Galileo: - 0.14 m
0.07 m
0.07 m
0.04 m

SV BeiDou Av Elev MP (B1I) MP (B3I)
C21 34.7 ° 0.16 m
0.07 m
C22 - - -
C26 29.7 ° 0.37 m
0.21 m
C29 35.8 ° 0.13 m
0.06 m
C30 28.0 ° 0.16 m
0.12 m
C36 33.2 ° 0.16 m
0.06 m
Average BeiDou: - 0.20 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 - - - - - - -
80 - 85 - - - - - - -
75 - 80 - - - - - - -
70 - 75 - - - - - - -
65 - 70 0.11 m
- 0.07 m
0.06 m
0.04 m
- -
60 - 65 0.12 m
- 0.05 m
0.05 m
0.03 m
- -
55 - 60 0.13 m
0.11 m
0.05 m
0.09 m
0.05 m
- -
50 - 55 0.13 m
0.08 m
0.08 m
0.06 m
0.05 m
- -
45 - 50 0.10 m
0.12 m
0.07 m
- - - -
40 - 45 0.13 m
0.14 m
0.07 m
- - - -
35 - 40 0.15 m
0.23 m
- - - 0.07 m
-
30 - 35 0.20 m
0.13 m
- - - 0.09 m
-
25 - 30 0.24 m
0.09 m
- - - 0.14 m
-
20 - 25 0.12 m
0.14 m
- - - - -
15 - 20 0.18 m
0.18 m
0.18 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 R20 starting 2024/03/12 14:15:00.00.
- Updated header information or comments after epoch 2024/03/12 14:29:59.00

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