Leica SpiderQC v7.1 Quality Report


Program Run: 2020/09/15 21:01:12.54

File Details:


Observation File: algc259u.20o
GPS Navigation File: algc259u.20n
GLONASS Navigation File: algc259u.20g
Galileo Navigation File: algc259u.20l
BeiDou Navigation File: algc259u.20f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  ALGC  13456M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1832466  LEICA GR50  4.31/7.403 
Antenna #/Type:  2110213  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  5135570.619  -489449.771  3738221.713 
Approx Position (plh):  36° 06' 39.74829" N  5° 26' 39.03897" W  117.170m 
Diff. Est-Header:  0.8 m dX  -5.7 m dY  2.3 m dZ 
Diff. Est-Header:  6.2 m (3600 estimates) 

Session Summary:


Time of first obs:  2020/09/15 20:00:00.00 GPS 
Time of last obs:  2020/09/15 20:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2123, day 2 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  34 
Num SVs with nav:  102 
Total GPS orbits:  44 
Total GLONASS orbits:  37 
Total Galileo orbits:  93 
Total BeiDou orbits:  29 
Total QZSS orbits:  0 
SVs with obs:  G5 G10 G12 G13 G15 G17 G18 G19 G20 G24 G28 G30 R3 R4 R5 R6 R14 R15 R16 E2 E3 E5 E8 E13 E24 E25 E30 C5 C10 C19 C21 C22 C26 C30  
SVs without obs:  G1 G2 G3 G4 G6 G7 G8 G9 G11 G14 G16 G21 G22 G23 G25 G26 G27 G29 G31 G32 R1 R2 R7 R8 R9 R10 R11 R12 R13 R17 R18 R19 R20 R21 R22 R23 R24 E1 E4 E6 E7 E9 E10 E11 E12 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E26 E27 E28 E29 E31 E32 E33 E34 E35 E36 C1 C2 C3 C4 C6 C7 C8 C9 C11 C12 C13 C14 C15 C16 C17 C18 C20 C23 C24 C25 C27 C28 C29 C31 C32 C33 C34 C35 C36 C37 J1 J2 J3 J4 J5 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 S59 S60  
SVs with nav:  G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 E1 E2 E3 E4 E5 E7 E8 E9 E11 E12 E13 E14 E15 E18 E19 E21 E24 E25 E26 E27 E30 E31 E33 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C16 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30  
SVs without nav:  E6 E10 E16 E17 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C15 C17 C18 C31 C32 C33 C34 C35 C36 C37  
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 46 slips 
Multipath:  Pass  Value 0.11m MP1 / 0.10m MP2 / 0.15m 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 120 slips 
Multipath:  Pass  Value 0.07m MP1 / 0.07m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 3 slips, Threshold 117 slips 
Multipath:  Pass  Value 0.06m MP1 / 0.11m MP5a / 0.11m MP5b / 0.04m MP5a+b, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 65 slips 
Multipath:  Pass  Value 0.00m MP1, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Fail   

General Quality Indicators:


Tracking   
Num obs > 0°:  103469 
Num possible obs > 0°:  103875 
Num obs with invalid nav:  0 
Num obs without nav:  3600 
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°:  3600  (100.0 %) 
Epochs with full data > 15°:  0  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.2  2.4  2.3 
GDOP  2.7  2.9  2.8 

Data Gaps 
Num epochs with data:  3600 
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:  0.000010 ms (at 2020/09/15 20:00:27.00) 
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 
Tracking information over 0° 
Num obs > 0°:  103469  37735  21777  24202  19755  - 
Num possible obs > 0°:  103875  39185  21782  26023  16885  - 
Num obs with invalid nav:  -  -  -  -  -  - 
Num obs without nav:  3600  -  -  -  3600  - 
Num obs to unhealthy SV:  -  -  -  -  -  - 
             
Tracking over Elevation Mask (15°) 
Num obs > 15°:  73384  23054  20012  19518  10800  - 
% obs > 15°:   100.0 %  100.0 %  100.0 %  100.0 %  100.0 %  - 
Num possible obs > 15°:  73384  23054  20012  19518  10800  - 
Num complete obs > 15°:  62583  23054  20012  19517  -  - 
% complete obs > 15°:   85.3 %  100.0 %  100.0 %  100.0 %  -  - 
Num obs with WLF change:   -  -  -  -  -  - 
Average # SV per Epoch:  20.4   6.4   5.6   5.4   3.0   - 
             
Obs L2 : Obs L1  1.624   1.564   1.692   -  -  - 
Obs B2/E5b : Obs B1/E1  0.644   -  -  1.000   -  - 
Obs L5/E5a : Obs L1/E1  0.556   0.181   -  1.000   -  - 

Cycle Slips             
Num cycle slips > 15°:  4  -  1  3  -  - 
% slips per complete obs:  0.006 %  -  0.005 %  0.015 %  -  - 
Num complete obs per slip:  15645   -  20012   6505   -  - 
IOD Slips > 15°:  13878  -  3082  1  10795  - 
Outliers > 15°:  -  -  -  -  -  - 
LLI L1/B1/E1 : Obs L1/B1/E1:  0.0000   -  -  0.0001   -  - 
LLI L2 : Obs L2:  -  -  -  -  -  - 
LLI B2/E5b : Obs B2/E5b:  -  -  -  -  -  - 
LLI L5 : Obs L5:  -  -  -  -  -  - 

Multipath             
MP (L1/E1/B1) RMS:  0.082 m  0.105 m  0.070 m  0.060 m  -  - 
MP (L2) RMS:  0.093 m  0.103 m  0.074 m  -  -  - 
MP (L5/E5a) RMS:  0.122 m  0.149 m  -  0.114 m  -  - 
MP (E5b/B2) RMS:  0.107 m  -  -  0.107 m  -  - 
MP (E5a+b) RMS:  0.044 m  -  -  0.044 m  -  - 

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 84.6 %
84.6 %
84.6 %
84.6 %
L2P 84.6 %
84.6 %
84.6 %
84.6 %
L2S 56.4 %
56.4 %
56.4 %
56.4 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 55.6 %
55.6 %
55.6 %
55.6 %
L7I 0.0 %
0.0 %
0.0 %
0.0 %
L7Q 100.0 %
100.0 %
100.0 %
100.0 %
L8Q 100.0 %
100.0 %
100.0 %
100.0 %

Tracking by satellite > 15°: 
SV Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
G5 17.13° 44.57° 3600 3600 (100.0 %)
0 (0.0 %) 0
G12 15.00° 20.85° 810 810 (100.0 %)
0 (0.0 %) 0
G13 56.92° 66.98° 3600 3600 (100.0 %)
0 (0.0 %) 0
G15 53.64° 80.01° 3600 3600 (100.0 %)
0 (0.0 %) 0
G17 15.00° 18.04° 837 837 (100.0 %)
0 (0.0 %) 0
G20 15.00° 27.61° 2843 2843 (100.0 %)
0 (0.0 %) 0
G24 29.79° 48.73° 3600 3600 (100.0 %)
0 (0.0 %) 0
G28 28.51° 45.35° 3600 3600 (100.0 %)
0 (0.0 %) 0
G30 15.00° 18.26° 564 564 (100.0 %)
0 (0.0 %) 0
R4 21.74° 49.30° 3600 3600 (100.0 %)
0 (0.0 %) 0
R5 67.81° 84.97° 3600 3600 (100.0 %)
0 (0.0 %) 0
R6 15.00° 39.44° 3083 3083 (100.0 %)
0 (0.0 %) 0
R14 15.00° 34.47° 2529 2529 (100.0 %)
0 (0.0 %) 1
R15 55.41° 85.17° 3600 3600 (100.0 %)
0 (0.0 %) 0
R16 28.93° 54.06° 3600 3600 (100.0 %)
0 (0.0 %) 0
E2 49.53° 74.25° 3600 3600 (100.0 %)
0 (0.0 %) 0
E3 66.22° 77.68° 3600 3600 (100.0 %)
0 (0.0 %) 0
E5 15.00° 30.56° 3385 3385 (100.0 %)
0 (0.0 %) 3
E8 36.72° 56.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
E24 15.00° 17.17° 429 429 (100.0 %)
0 (0.0 %) 0
E25 49.59° 66.64° 3600 3600 (100.0 %)
0 (0.0 %) 0
E30 15.00° 22.05° 1304 1304 (100.0 %)
0 (0.0 %) 0
C5 - - 0 0 (-)
3600 (-) 0
C19 22.58° 47.35° 3600 3600 (100.0 %)
0 (0.0 %) 0
C21 21.30° 42.23° 3600 3600 (100.0 %)
0 (0.0 %) 0
C22 68.97° 78.99° 3600 3600 (100.0 %)
0 (0.0 %) 0

Missing phase observations by satellite > 15°: 
SV Observations Missing L1C Missing L1I Missing L2C Missing L2P Missing L2S Missing L2W Missing L5Q Missing L7I Missing L7Q Missing L8Q
G5 4.9 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G12 1.1 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G13 4.9 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G15 4.9 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G17 1.1 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G20 3.9 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G24 4.9 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G28 4.9 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G30 0.8 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
R4 4.9 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R5 4.9 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R6 4.2 %
0.0 %
- 100.0 %
100.0 %
- - - - - -
R14 3.4 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R15 4.9 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R16 4.9 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
E2 4.9 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E3 4.9 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E5 4.6 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E8 4.9 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E24 0.6 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E25 4.9 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E30 1.8 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
C19 4.9 %
- 0.0 %
- - - - - 100.0 %
- -
C21 4.9 %
- 0.0 %
- - - - - 100.0 %
- -
C22 4.9 %
- 0.0 %
- - - - - 100.0 %
- -

Missing code observations by satellite > 15°: 
SV Missing C1C Missing C1I Missing C2C Missing C2P Missing C2S Missing C2W Missing C5Q Missing C7I Missing C7Q Missing C8Q
G5 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G12 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G13 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G15 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G17 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G20 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G24 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G28 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G30 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
R4 0.0 %
- 0.0 %
0.0 %
- - - - - -
R5 0.0 %
- 0.0 %
0.0 %
- - - - - -
R6 0.0 %
- 100.0 %
100.0 %
- - - - - -
R14 0.0 %
- 0.0 %
0.0 %
- - - - - -
R15 0.0 %
- 0.0 %
0.0 %
- - - - - -
R16 0.0 %
- 0.0 %
0.0 %
- - - - - -
E2 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E3 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E5 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E8 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E24 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E25 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E30 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
C19 - 0.0 %
- - - - - 100.0 %
- -
C21 - 0.0 %
- - - - - 100.0 %
- -
C22 - 0.0 %
- - - - - 100.0 %
- -

Tracking by satellite elevation > 15°: 
Elevation Cycle Slips GPS Cycle Slips GLONASS Cycle Slips Galileo Cycle Slips BeiDou Cycle Slips QZSS Observations
85 - 90 0
0
0
0
0
0.1 %
80 - 85 0
0
0
0
0
3.4 %
75 - 80 0
0
0
0
0
8.9 %
70 - 75 0
0
0
0
0
6.1 %
65 - 70 0
0
0
0
0
6.9 %
60 - 65 0
0
0
0
0
6.3 %
55 - 60 0
0
0
0
0
5.3 %
50 - 55 0
0
0
0
0
4.6 %
45 - 50 0
0
0
0
0
4.9 %
40 - 45 0
0
0
0
0
8.6 %
35 - 40 0
0
0
0
0
9.1 %
30 - 35 0
0
0
0
0
9.0 %
25 - 30 0
0
0
0
0
8.8 %
20 - 25 0
0
0
0
0
8.3 %
15 - 20 0
1
3
0
0
9.9 %
10 - 15 0
0
0
0
0
0.0 %
5 - 10 0
0
0
0
0
0.0 %
0 - 5 0
0
0
0
0
0.0 %

Signal to Noise Ratio by satellite > 15°: 
SV L1/E1/B1 L2 L5/E5a E5b/B2 E5a+b
G5 46.1
46.1
- - -
G12 41.3
41.8
- - -
G13 52.6
50.1
- - -
G15 53.3
53.4
- - -
G17 40.6
41.5
- - -
G20 42.1
40.2
- - -
G24 47.5
50.7
54.5
- -
G28 46.7
43.8
- - -
G30 39.4
42.8
46.6
- -
R4 47.1
45.9
- - -
R5 53.9
51.5
- - -
R6 42.0
- - - -
R14 44.8
42.1
- - -
R15 53.7
51.0
- - -
R16 45.3
43.6
- - -
E2 54.3
- 55.4
55.8
58.8
E3 54.8
- 56.0
56.6
59.5
E5 43.6
- 46.5
46.8
49.9
E8 51.7
- 52.7
53.2
56.2
E24 40.8
- 44.1
44.0
47.3
E25 53.2
- 54.6
55.1
58.1
E30 42.6
- 45.3
45.6
48.6
C19 46.8
- - - -
C21 47.0
- - - -
C22 55.0
- - - -
Average GPS: 45.5
45.6
50.6
- -
Average GLONASS: 47.8
46.8
- - -
Average Galileo: 48.7
- 50.6
51.0
54.0
Average BeiDou: 49.6
- - - -
Average QZSS: - - - - -
Average All: 47.4
46.0
50.6
51.0
54.0

Code multipath by satellite > 15°: 
SV Av Elev MP (L1/E1/B1) MP (L2) MP (L5/E5a) MP (E5b/B2) MP (E5a+b)
G5 30.8 ° 0.09 m
0.09 m
- - -
G12 17.9 ° 0.11 m
0.12 m
- - -
G13 62.0 ° 0.05 m
0.06 m
- - -
G15 66.8 ° 0.07 m
0.05 m
- - -
G17 16.5 ° 0.16 m
0.11 m
- - -
G20 21.3 ° 0.22 m
0.25 m
- - -
G24 39.3 ° 0.04 m
0.06 m
0.07 m
- -
G28 36.9 ° 0.06 m
0.10 m
- - -
G30 16.6 ° 0.15 m
0.09 m
0.23 m
- -
R4 35.5 ° 0.09 m
0.11 m
- - -
R5 76.4 ° 0.05 m
0.05 m
- - -
R6 - - - - - -
R14 24.7 ° 0.10 m
0.08 m
- - -
R15 70.3 ° 0.04 m
0.05 m
- - -
R16 41.5 ° 0.08 m
0.08 m
- - -
E2 61.9 ° 0.06 m
- 0.07 m
0.06 m
0.04 m
E3 71.9 ° 0.02 m
- 0.05 m
0.06 m
0.01 m
E5 22.8 ° 0.11 m
- 0.21 m
0.23 m
0.09 m
E8 46.6 ° 0.05 m
- 0.10 m
0.10 m
0.03 m
E24 16.1 ° 0.06 m
- 0.19 m
0.14 m
0.05 m
E25 58.1 ° 0.03 m
- 0.07 m
0.06 m
0.01 m
E30 18.5 ° 0.08 m
- 0.11 m
0.11 m
0.07 m
C19 - - - - - -
C21 - - - - - -
C22 - - - - - -
Average GPS: - 0.11 m
0.10 m
0.15 m
- -
Average GLONASS: - 0.07 m
0.07 m
- - -
Average Galileo: - 0.06 m
- 0.11 m
0.11 m
0.04 m
Average BeiDou: - - - - - -
Average QZSS: - - - - - -
Average All: - 0.08 m
0.09 m
0.12 m
0.11 m
0.04 m

Code multipath by satellite elevation > 15°: 
Elevation MP (L1/E1/B1) MP (L2) MP (L5/E5a) MP (E5b/B2) MP (E5a+b)
85 - 90 0.04 m
0.03 m
- - -
80 - 85 0.04 m
0.05 m
- - -
75 - 80 0.05 m
0.05 m
0.04 m
0.05 m
0.01 m
70 - 75 0.03 m
0.04 m
0.07 m
0.05 m
0.02 m
65 - 70 0.04 m
0.04 m
0.04 m
0.06 m
0.02 m
60 - 65 0.05 m
0.06 m
0.08 m
0.06 m
0.02 m
55 - 60 0.06 m
0.07 m
0.05 m
0.05 m
0.02 m
50 - 55 0.05 m
0.07 m
0.10 m
0.08 m
0.04 m
45 - 50 0.06 m
0.09 m
0.09 m
0.13 m
0.02 m
40 - 45 0.05 m
0.08 m
0.08 m
0.10 m
0.04 m
35 - 40 0.07 m
0.09 m
0.11 m
0.11 m
0.04 m
30 - 35 0.07 m
0.08 m
0.05 m
0.08 m
0.10 m
25 - 30 0.12 m
0.13 m
0.19 m
0.22 m
0.08 m
20 - 25 0.14 m
0.17 m
0.24 m
0.25 m
0.09 m
15 - 20 0.14 m
0.15 m
0.16 m
0.15 m
0.07 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 C5 starting 2020/09/15 20:00:00.00.
- Updated header information or comments after epoch 2020/09/15 20:59:59.00

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 code and phase measurements with a SNR of at least 0 
(#)  A complete GLONASS observation contains non-zero L1 code and phase measurements with a SNR of at least 0 
(#)  A complete Galileo observation contains non-zero E1, E5a, E5b, E5a+b code and phase measurements with a SNR of at least 0 
(#)  A complete BeiDou observation contains non-zero B1, B2 code and phase measurements with a SNR of at least 0 
(#)  A complete QZSS observation contains non-zero L1 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 2.5 seconds to process this file 
-  This file was processed using version 7.1.0.7438