Leica SpiderQC v7.1 Quality Report


Program Run: 2021/01/29 21:02:25.42

File Details:


Observation File: pozo029u.21o
GPS Navigation File: pozo029u.21n
GLONASS Navigation File: pozo029u.21g
Galileo Navigation File: pozo029u.21l
BeiDou Navigation File: pozo029u.21f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  POZO  13468M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1832461  LEICA GR50  4.20/7.300 
Antenna #/Type:  21015005  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  4988767.003  -423244.328  3939354.591 
Approx Position (plh):  38° 23' 0.47934" N  4° 50' 57.59105" W  736.051m 
Diff. Est-Header:  -1.4 m dX  -4.7 m dY  0.3 m dZ 
Diff. Est-Header:  4.9 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/01/29 20:00:00.00 GPS 
Time of last obs:  2021/01/29 20:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2142, day 5 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  34 
Num SVs with nav:  102 
Total GPS orbits:  45 
Total GLONASS orbits:  37 
Total Galileo orbits:  102 
Total BeiDou orbits:  30 
Total QZSS orbits:  0 
SVs with obs:  G7 G8 G10 G16 G18 G20 G21 G23 G25 G26 G27 G29 G31 R5 R7 R10 R12 R13 R21 R22 R23 E1 E13 E21 E26 E31 E33 C5 C13 C20 C26 C27 C29 C30  
SVs without obs:  G1 G2 G3 G4 G5 G6 G9 G11 G12 G13 G14 G15 G17 G19 G22 G24 G28 G30 G32 R1 R2 R3 R4 R6 R8 R9 R11 R14 R15 R16 R17 R18 R19 R20 R24 E2 E3 E4 E5 E6 E7 E8 E9 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 C6 C7 C8 C9 C10 C11 C12 C14 C15 C16 C17 C18 C19 C21 C22 C23 C24 C25 C28 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 E15 E18 E19 E21 E24 E25 E26 E27 E30 E31 E33 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C16 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30  
SVs without nav:  E6 E10 E14 E16 E17 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C15 C17 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 1 slips, Threshold 55 slips 
Multipath:  Pass  Value 0.12m MP1 / 0.11m MP2 / 0.17m MP5, Threshold 0.5 m 
Data Completeness:  Pass  Value 100.0 %, Threshold 95.0 % 
Navigation Data:  Fail   
     
GLONASS Specific Tests 
Cycle Slips:  Pass  Value 3 slips, Threshold 81 slips 
Multipath:  Pass  Value 0.12m MP1 / 0.10m MP2, Threshold 0.5 m 
Data Completeness:  Pass  Value 96.3 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 1 slips, Threshold 117 slips 
Multipath:  Pass  Value 0.09m MP1 / 0.17m MP5a / 0.16m 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 45 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°:  102507 
Num possible obs > 0°:  100800 
Num obs with invalid nav:  0 
Num obs without nav:  3808 
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°:  3084  (85.7 %) 
Epochs with full data > 15°:  0  (0.0 %) 

Satellite Geometry 
DOP  Minimum  Maximum  Average 
PDOP  2.3  2.8  2.6 
GDOP  2.7  3.4  3.1 

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 
R13  8.583  1790 / 2305  16.79° / 20.70°  329.40° / 328.55° 
Total:  8.583 (515 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000019 ms (at 2021/01/29 20:59:49.00) 
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°:  102507  36889  21784  21600  22234  - 
Num possible obs > 0°:  100800  37456  22330  21600  19414  - 
Num obs with invalid nav:  -  -  -  -  -  - 
Num obs without nav:  3808  208  -  -  3600  - 
Num obs to unhealthy SV:  -  -  -  -  -  - 
             
Tracking over Elevation Mask (15°) 
Num obs > 15°:  68150  27749  13442  19506  7453  - 
% obs > 15°:   99.2 %  100.0 %  96.3 %  100.0 %  100.0 %  - 
Num possible obs > 15°:  68666  27749  13958  19506  7453  - 
Num complete obs > 15°:  60697  27749  13442  19506  -  - 
% complete obs > 15°:   88.4 %  100.0 %  96.3 %  100.0 %  -  - 
Num obs with WLF change:   -  -  -  -  -  - 
Average # SV per Epoch:  18.9   7.7   3.7   5.4   2.1   - 
             
Obs L2 : Obs L1  1.760   1.741   1.799   -  -  - 
Obs B2/E5b : Obs B1/E1  0.724   -  -  1.000   -  - 
Obs L5/E5a : Obs L1/E1  0.800   0.660   -  1.000   -  - 

Cycle Slips             
Num cycle slips > 15°:  5  1  3  1  -  - 
% slips per complete obs:  0.008 %  0.004 %  0.022 %  0.005 %  -  - 
Num complete obs per slip:  12139   27749   4480   19506   -  - 
IOD Slips > 15°:  8799  -  1349  -  7450  - 
Outliers > 15°:  -  -  -  -  -  - 
LLI L1/B1/E1 : Obs L1/B1/E1:  0.0000   -  0.0001   -  -  - 
LLI L2 : Obs L2:  0.0000   -  0.0000   -  -  - 
LLI B2/E5b : Obs B2/E5b:  -  -  -  -  -  - 
LLI L5 : Obs L5:  -  -  -  -  -  - 

Multipath             
MP (L1/E1/B1) RMS:  0.109 m  0.116 m  0.115 m  0.094 m  -  - 
MP (L2) RMS:  0.106 m  0.107 m  0.103 m  -  -  - 
MP (L5/E5a) RMS:  0.170 m  0.168 m  -  0.172 m  -  - 
MP (E5b/B2) RMS:  0.159 m  -  -  0.159 m  -  - 
MP (E5a+b) RMS:  0.043 m  -  -  0.043 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 90.0 %
89.9 %
90.0 %
90.0 %
L2P 90.0 %
89.9 %
90.0 %
90.0 %
L2S 74.1 %
74.1 %
74.1 %
74.1 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 80.0 %
80.0 %
80.0 %
80.0 %
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
G8 15.00° 19.14° 813 813 (100.0 %)
0 (0.0 %) 0
G10 15.00° 34.21° 3105 3105 (100.0 %)
0 (0.0 %) 0
G16 55.91° 84.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
G18 34.19° 58.56° 3600 3600 (100.0 %)
0 (0.0 %) 0
G20 29.85° 41.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
G21 - - 0 0 (-)
208 (-) 0
G23 23.55° 37.97° 3600 3600 (100.0 %)
0 (0.0 %) 0
G26 61.71° 86.10° 3600 3600 (100.0 %)
0 (0.0 %) 0
G27 35.65° 53.93° 3600 3600 (100.0 %)
0 (0.0 %) 0
G29 15.00° 15.50° 95 95 (100.0 %)
0 (0.0 %) 0
G31 15.00° 30.01° 2136 2136 (100.0 %)
0 (0.0 %) 1
R12 53.44° 70.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
R13 20.70° 30.36° 1811 1295 (71.5 %)
0 (0.0 %) 2
R21 25.75° 51.79° 3600 3600 (100.0 %)
0 (0.0 %) 1
R22 61.21° 65.38° 3600 3600 (100.0 %)
0 (0.0 %) 0
R23 15.00° 22.37° 1347 1347 (100.0 %)
0 (0.0 %) 0
E1 64.96° 89.38° 3600 3600 (100.0 %)
0 (0.0 %) 0
E13 15.00° 22.76° 1506 1506 (100.0 %)
0 (0.0 %) 0
E21 16.55° 36.88° 3600 3600 (100.0 %)
0 (0.0 %) 1
E26 56.29° 78.02° 3600 3600 (100.0 %)
0 (0.0 %) 0
E31 33.14° 52.48° 3600 3600 (100.0 %)
0 (0.0 %) 0
E33 47.75° 66.63° 3600 3600 (100.0 %)
0 (0.0 %) 0
C5 - - 0 0 (-)
3600 (-) 0
C27 15.00° 16.32° 253 253 (100.0 %)
0 (0.0 %) 0
C29 48.78° 63.56° 3600 3600 (100.0 %)
0 (0.0 %) 0
C30 45.96° 66.17° 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
G8 1.2 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G10 4.6 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G16 5.3 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G18 5.3 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G20 5.3 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G23 5.3 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G26 5.3 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G27 5.3 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G29 0.1 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G31 3.1 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
R12 5.3 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R13 1.9 %
0.0 %
- 0.3 %
0.3 %
- - - - - -
R21 5.3 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R22 5.3 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R23 2.0 %
0.0 %
- 100.0 %
100.0 %
- - - - - -
E1 5.3 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E13 2.2 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E21 5.3 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E26 5.3 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E31 5.3 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E33 5.3 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
C27 0.4 %
- 0.0 %
- - - - - 100.0 %
- -
C29 5.3 %
- 0.0 %
- - - - - 100.0 %
- -
C30 5.3 %
- 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
G8 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G10 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G16 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G18 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G20 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G23 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G26 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 %
- - -
G31 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
R12 0.0 %
- 0.0 %
0.0 %
- - - - - -
R13 0.0 %
- 0.1 %
0.1 %
- - - - - -
R21 0.0 %
- 0.0 %
0.0 %
- - - - - -
R22 0.0 %
- 0.0 %
0.0 %
- - - - - -
R23 0.0 %
- 100.0 %
100.0 %
- - - - - -
E1 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 %
C27 - 0.0 %
- - - - - 100.0 %
- -
C29 - 0.0 %
- - - - - 100.0 %
- -
C30 - 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
1.9 %
80 - 85 0
0
0
0
0
3.0 %
75 - 80 0
0
0
0
0
3.6 %
70 - 75 0
0
0
0
0
5.3 %
65 - 70 0
0
0
0
0
8.3 %
60 - 65 0
0
0
0
0
11.8 %
55 - 60 0
0
0
0
0
7.9 %
50 - 55 0
0
0
0
0
7.8 %
45 - 50 0
0
0
0
0
6.9 %
40 - 45 0
0
0
0
0
6.2 %
35 - 40 0
0
0
0
0
8.9 %
30 - 35 0
0
0
0
0
7.6 %
25 - 30 1
1
1
0
0
7.0 %
20 - 25 0
2
0
0
0
6.2 %
15 - 20 0
0
0
0
0
7.6 %
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
G8 39.7
43.1
46.1
- -
G10 43.5
45.2
48.0
- -
G16 51.6
51.2
- - -
G18 49.0
51.4
54.5
- -
G20 46.7
44.4
- - -
G23 45.4
47.8
50.9
- -
G26 53.4
54.7
57.7
- -
G27 49.6
51.0
53.8
- -
G29 39.6
40.7
- - -
G31 42.2
43.2
- - -
R12 54.8
52.4
- - -
R13 37.0
37.5
- - -
R21 49.3
47.7
- - -
R22 43.3
39.7
- - -
R23 43.9
- - - -
E1 54.7
- 56.0
56.6
59.2
E13 41.9
- 45.1
44.7
48.0
E21 44.4
- 47.2
47.3
50.3
E26 54.1
- 55.1
55.7
58.3
E31 50.3
- 51.4
51.7
54.5
E33 53.2
- 54.3
54.7
57.5
C27 39.6
- - - -
C29 52.5
- - - -
C30 52.1
- - - -
Average GPS: 46.1
47.3
51.8
- -
Average GLONASS: 45.7
44.3
- - -
Average Galileo: 49.8
- 51.5
51.8
54.6
Average BeiDou: 48.0
- - - -
Average QZSS: - - - - -
Average All: 47.2
46.4
51.7
51.8
54.6

Code multipath by satellite > 15°: 
SV Av Elev MP (L1/E1/B1) MP (L2) MP (L5/E5a) MP (E5b/B2) MP (E5a+b)
G8 17.1 ° 0.30 m
0.20 m
0.35 m
- -
G10 24.6 ° 0.12 m
0.15 m
0.16 m
- -
G16 70.2 ° 0.04 m
0.05 m
- - -
G18 46.4 ° 0.08 m
0.09 m
0.14 m
- -
G20 35.7 ° 0.12 m
0.14 m
- - -
G23 30.8 ° 0.15 m
0.12 m
0.19 m
- -
G26 73.9 ° 0.04 m
0.05 m
0.05 m
- -
G27 44.8 ° 0.10 m
0.07 m
0.12 m
- -
G29 - - - - - -
G31 22.5 ° 0.11 m
0.11 m
- - -
R12 62.0 ° 0.04 m
0.05 m
- - -
R13 25.5 ° 0.23 m
0.17 m
- - -
R21 38.8 ° 0.13 m
0.11 m
- - -
R22 63.3 ° 0.07 m
0.08 m
- - -
R23 - - - - - -
E1 77.2 ° 0.03 m
- 0.07 m
0.05 m
0.03 m
E13 18.9 ° 0.23 m
- 0.49 m
0.38 m
0.05 m
E21 26.7 ° 0.13 m
- 0.13 m
0.18 m
0.09 m
E26 67.2 ° 0.03 m
- 0.07 m
0.06 m
0.02 m
E31 42.8 ° 0.10 m
- 0.19 m
0.21 m
0.05 m
E33 57.2 ° 0.04 m
- 0.09 m
0.07 m
0.03 m
C27 - - - - - -
C29 - - - - - -
C30 - - - - - -
Average GPS: - 0.12 m
0.11 m
0.17 m
- -
Average GLONASS: - 0.12 m
0.10 m
- - -
Average Galileo: - 0.09 m
- 0.17 m
0.16 m
0.04 m
Average BeiDou: - - - - - -
Average QZSS: - - - - - -
Average All: - 0.11 m
0.11 m
0.17 m
0.16 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 0.03 m
0.04 m
0.05 m
0.04 m
0.01 m
80 - 85 0.03 m
0.03 m
0.05 m
0.05 m
0.04 m
75 - 80 0.03 m
0.05 m
0.05 m
0.05 m
0.02 m
70 - 75 0.03 m
0.05 m
0.08 m
0.05 m
0.03 m
65 - 70 0.05 m
0.05 m
0.07 m
0.06 m
0.02 m
60 - 65 0.04 m
0.07 m
0.08 m
0.07 m
0.02 m
55 - 60 0.05 m
0.05 m
0.09 m
0.08 m
0.02 m
50 - 55 0.08 m
0.07 m
0.10 m
0.09 m
0.03 m
45 - 50 0.07 m
0.08 m
0.15 m
0.13 m
0.03 m
40 - 45 0.12 m
0.11 m
0.12 m
0.23 m
0.04 m
35 - 40 0.09 m
0.10 m
0.16 m
0.17 m
0.05 m
30 - 35 0.12 m
0.14 m
0.20 m
0.19 m
0.06 m
25 - 30 0.17 m
0.11 m
0.13 m
0.14 m
0.06 m
20 - 25 0.16 m
0.17 m
0.21 m
0.30 m
0.10 m
15 - 20 0.21 m
0.17 m
0.35 m
0.36 m
0.11 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 2021/01/29 20:00:00.00.
- Orbit missing or expired for SV G21 starting 2021/01/29 20:41:23.00.
- Updated header information or comments after epoch 2021/01/29 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 2.3 seconds to process this file 
-  This file was processed using version 7.1.0.7438