Leica SpiderQC v7.1 Quality Report


Program Run: 2021/02/12 15:02:14.06

File Details:


Observation File: arac043o.21o
GPS Navigation File: arac043o.21n
GLONASS Navigation File: arac043o.21g
Galileo Navigation File: arac043o.21l
BeiDou Navigation File: arac043o.21f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  ARAC  13467M001   
Observer/Agency:  IECA  Junta de Andalucia   
Receiver #/Type/Vers:  1831536  LEICA GR25  4.11/6.524 
Antenna #/Type:  18313004  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.077  0.000  0.000 
Approx Position (XYZ):  5007190.783  -576288.615  3896600.471 
Approx Position (plh):  37° 53' 37.95786" N  6° 33' 55.47672" W  725.103m 
Diff. Est-Header:  -1.0 m dX  -3.2 m dY  0.9 m dZ 
Diff. Est-Header:  3.5 m (3600 estimates) 

Session Summary:


Time of first obs:  2021/02/12 14:00:00.00 GPS 
Time of last obs:  2021/02/12 14:59:59.00 GPS 
Session length:  59.98 minutes 
GPS week:  2144, day 5 
Observation interval:  1.00 seconds 
UTC leap seconds:  18 seconds 

Num SVs with obs:  31 
Num SVs with nav:  99 
Total GPS orbits:  42 
Total GLONASS orbits:  41 
Total Galileo orbits:  88 
Total BeiDou orbits:  28 
Total QZSS orbits:  0 
SVs with obs:  G2 G6 G10 G12 G15 G24 G25 G29 G31 G32 R4 R5 R6 R14 R15 R16 R17 R18 R23 R24 E2 E7 E8 E27 E30 C13 C19 C20 C23 C27 C28  
SVs without obs:  G1 G3 G4 G5 G7 G8 G9 G11 G13 G14 G16 G17 G18 G19 G20 G21 G22 G23 G26 G27 G28 G30 R1 R2 R3 R7 R8 R9 R10 R11 R12 R13 R19 R20 R21 R22 E1 E3 E4 E5 E6 E9 E10 E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26 E28 E29 E31 E32 E33 E34 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C14 C15 C16 C17 C18 C21 C22 C24 C25 C26 C29 C30 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 E19 E21 E24 E25 E26 E27 E30 E31 E33 C5 C6 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 E14 E16 E17 E18 E20 E22 E23 E28 E29 E32 E34 E35 E36 C1 C2 C3 C4 C7 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 1 slips, Threshold 45 slips 
Multipath:  Pass  Value 0.13m 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 162 slips 
Multipath:  Pass  Value 0.13m MP1 / 0.14m 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 86 slips 
Multipath:  Pass  Value 0.12m MP1 / 0.21m MP5a / 0.22m MP5b / 0.05m MP5a+b, Threshold 0.5 m 
Data Completeness:  Fail  Value 79.9 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
BeiDou Specific Tests 
Cycle Slips:  Pass  Value 0 slips, Threshold 97 slips 
Multipath:  Pass  Value 0.17m MP1 / 0.33m MP5b, Threshold 0.5 m 
Data Completeness:  Fail  Value 4.9 %, Threshold 90.0 % 
Navigation Data:  Pass   

General Quality Indicators:


Tracking   
Num obs > 0°:  92621 
Num possible obs > 0°:  105124 
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  3.1  2.8 
GDOP  3.1  3.9  3.4 

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 
E27  26.783  1 / 1608  21.77° / 27.31°  264.58° / 273.17° 
E8  33.300  1602 / 3600  27.39° / 15.33°  190.82° / 188.13° 
Total:  60.083 (3604 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000030 ms (at 2021/02/12 14:00:10.00) 
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°:  92621  29183  30042  14393  19003  - 
Num possible obs > 0°:  105124  34144  30570  18000  22410  - 
Num obs with invalid nav:  -  -  -  -  -  - 
Num obs without nav:  -  -  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  - 
             
Tracking over Elevation Mask (15°) 
Num obs > 15°:  80242  22599  27043  14393  16207  - 
% obs > 15°:   95.7 %  100.0 %  100.0 %  80.0 %  100.0 %  - 
Num possible obs > 15°:  83849  22599  27043  18000  16207  - 
Num complete obs > 15°:  64822  22599  27043  14390  790  - 
% complete obs > 15°:   77.3 %  100.0 %  100.0 %  79.9 %  4.9 %  - 
Num obs with WLF change:   -  -  -  -  -  - 
Average # SV per Epoch:  22.3   6.3   7.5   4.0   4.5   - 
             
Obs L2 : Obs L1  1.793   1.864   1.734   -  -  - 
Obs B2/E5b : Obs B1/E1  0.496   -  -  1.000   0.049   - 
Obs L5/E5a : Obs L1/E1  0.681   0.478   -  1.000   -  - 

Cycle Slips             
Num cycle slips > 15°:  5  1  1  3  -  - 
% slips per complete obs:  0.008 %  0.004 %  0.004 %  0.021 %  -  - 
Num complete obs per slip:  12964   22599   27043   4796   -  - 
IOD Slips > 15°:  19009  -  3598  1  15410  - 
Outliers > 15°:  -  -  -  -  -  - 
LLI L1/B1/E1 : Obs L1/B1/E1:  0.0000   -  -  0.0001   -  - 
LLI L2 : Obs L2:  -  -  -  -  -  - 
LLI B2/E5b : Obs B2/E5b:  0.0001   -  -  0.0001   -  - 
LLI L5 : Obs L5:  0.0000   -  -  0.0001   -  - 

Multipath             
MP (L1/E1/B1) RMS:  0.129 m  0.125 m  0.131 m  0.121 m  0.174 m  - 
MP (L2) RMS:  0.122 m  0.103 m  0.142 m  -  -  - 
MP (L5/E5a) RMS:  0.188 m  0.151 m  -  0.210 m  -  - 
MP (E5b/B2) RMS:  0.236 m  -  -  0.218 m  0.325 m  - 
MP (E5a+b) RMS:  0.048 m  -  -  0.048 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 86.7 %
86.7 %
86.7 %
86.7 %
L2P 86.7 %
86.7 %
86.7 %
86.7 %
L2S 86.4 %
86.4 %
86.4 %
86.4 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 68.1 %
68.1 %
68.1 %
68.1 %
L7I 4.9 %
4.9 %
4.9 %
4.9 %
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
G2 15.00° 20.90° 3063 3063 (100.0 %)
0 (0.0 %) 0
G12 37.20° 60.60° 3600 3600 (100.0 %)
0 (0.0 %) 0
G24 22.28° 43.48° 3600 3600 (100.0 %)
0 (0.0 %) 1
G25 62.45° 69.91° 3600 3600 (100.0 %)
0 (0.0 %) 0
G29 25.77° 55.42° 3600 3600 (100.0 %)
0 (0.0 %) 0
G31 15.00° 24.58° 1536 1536 (100.0 %)
0 (0.0 %) 0
G32 43.61° 50.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
R5 15.36° 41.88° 3600 3600 (100.0 %)
0 (0.0 %) 1
R6 25.28° 29.63° 3600 3600 (100.0 %)
0 (0.0 %) 0
R14 15.00° 28.98° 2930 2930 (100.0 %)
0 (0.0 %) 0
R15 50.65° 55.22° 3600 3600 (100.0 %)
0 (0.0 %) 0
R16 21.24° 39.48° 3600 3600 (100.0 %)
0 (0.0 %) 0
R17 34.81° 49.82° 3600 3600 (100.0 %)
0 (0.0 %) 0
R18 15.01° 38.10° 2648 2648 (100.0 %)
0 (0.0 %) 0
R24 15.01° 29.54° 3465 3465 (100.0 %)
0 (0.0 %) 0
E2 27.40° 41.98° 3600 3600 (100.0 %)
0 (0.0 %) 0
E7 40.19° 51.53° 3600 3600 (100.0 %)
0 (0.0 %) 0
E8 27.39° 37.76° 3600 1601 (44.5 %)
0 (0.0 %) 0
E27 27.70° 34.96° 3600 1992 (55.3 %)
0 (0.0 %) 3
E30 66.34° 68.15° 3600 3600 (100.0 %)
0 (0.0 %) 0
C13 15.00° 16.84° 790 790 (100.0 %)
0 (0.0 %) 0
C19 17.10° 23.83° 3600 3600 (100.0 %)
0 (0.0 %) 0
C20 15.00° 27.96° 2447 2447 (100.0 %)
0 (0.0 %) 0
C23 15.00° 24.55° 2170 2170 (100.0 %)
0 (0.0 %) 0
C27 23.74° 48.96° 3600 3600 (100.0 %)
0 (0.0 %) 0
C28 43.17° 46.80° 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
G2 3.8 %
0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G12 4.5 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G24 4.5 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G25 4.5 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G29 4.5 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G31 1.9 %
0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G32 4.5 %
0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
R5 4.5 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R6 4.5 %
0.0 %
- 100.0 %
100.0 %
- - - - - -
R14 3.7 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R15 4.5 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R16 4.5 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R17 4.5 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R18 3.3 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
R24 4.3 %
0.0 %
- 0.0 %
0.0 %
- - - - - -
E2 4.5 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E7 4.5 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E8 2.0 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E27 2.5 %
0.0 %
- - - - - 0.1 %
- 0.1 %
0.2 %
E30 4.5 %
0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
C13 1.0 %
- 0.0 %
- - - - - 0.0 %
- -
C19 4.5 %
- 0.0 %
- - - - - 100.0 %
- -
C20 3.0 %
- 0.0 %
- - - - - 100.0 %
- -
C23 2.7 %
- 0.0 %
- - - - - 100.0 %
- -
C27 4.5 %
- 0.0 %
- - - - - 100.0 %
- -
C28 4.5 %
- 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
G2 0.0 %
- - - 100.0 %
0.0 %
100.0 %
- - -
G12 0.0 %
- - - 0.0 %
0.0 %
100.0 %
- - -
G24 0.0 %
- - - 0.0 %
0.0 %
0.0 %
- - -
G25 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 %
- - -
G32 0.0 %
- - - 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 %
- - - - - -
R17 0.0 %
- 0.0 %
0.0 %
- - - - - -
R18 0.0 %
- 0.0 %
0.0 %
- - - - - -
R24 0.0 %
- 0.0 %
0.0 %
- - - - - -
E2 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E7 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E8 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
E27 0.0 %
- - - - - 0.1 %
- 0.1 %
0.2 %
E30 0.0 %
- - - - - 0.0 %
- 0.0 %
0.0 %
C13 - 0.0 %
- - - - - 0.0 %
- -
C19 - 0.0 %
- - - - - 100.0 %
- -
C20 - 0.0 %
- - - - - 100.0 %
- -
C23 - 0.0 %
- - - - - 100.0 %
- -
C27 - 0.0 %
- - - - - 100.0 %
- -
C28 - 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
0.0 %
80 - 85 0
0
0
0
0
0.0 %
75 - 80 0
0
0
0
0
0.0 %
70 - 75 0
0
0
0
0
0.0 %
65 - 70 0
0
0
0
0
8.3 %
60 - 65 0
0
0
0
0
0.8 %
55 - 60 0
0
0
0
0
2.2 %
50 - 55 0
0
0
0
0
7.8 %
45 - 50 0
0
0
0
0
12.8 %
40 - 45 0
0
0
0
0
8.0 %
35 - 40 1
0
0
0
0
8.6 %
30 - 35 0
1
0
0
0
9.7 %
25 - 30 0
0
3
0
0
15.7 %
20 - 25 0
0
0
0
0
13.8 %
15 - 20 0
0
0
0
0
12.3 %
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
G2 41.9
38.6
- - -
G12 49.2
47.9
- - -
G24 44.3
46.8
51.7
- -
G25 50.5
50.6
53.2
- -
G29 46.8
46.2
- - -
G31 41.9
42.3
- - -
G32 49.8
49.6
52.5
- -
R5 44.4
44.9
- - -
R6 35.2
- - - -
R14 42.7
44.3
- - -
R15 50.4
49.3
- - -
R16 41.3
41.9
- - -
R17 48.8
47.7
- - -
R18 43.5
44.0
- - -
R24 43.8
43.6
- - -
E2 49.4
- 51.0
50.3
47.7
E7 51.0
- 52.2
51.8
49.7
E8 48.4
- 50.4
49.8
46.9
E27 48.2
- 50.3
49.7
46.8
E30 52.5
- 53.0
52.8
51.4
C13 38.2
- - 38.2
-
C19 42.2
- - - -
C20 42.7
- - - -
C23 41.7
- - - -
C27 46.9
- - - -
C28 48.7
- - - -
Average GPS: 46.4
46.0
52.5
- -
Average GLONASS: 43.8
45.1
- - -
Average Galileo: 49.9
- 51.4
50.9
48.5
Average BeiDou: 43.4
- - 38.2
-
Average QZSS: - - - - -
Average All: 45.6
45.5
51.8
48.8
48.5

Code multipath by satellite > 15°: 
SV Av Elev MP (L1/E1/B1) MP (L2) MP (L5/E5a) MP (E5b/B2) MP (E5a+b)
G2 18.0 ° 0.15 m
0.19 m
- - -
G12 48.9 ° 0.08 m
0.06 m
- - -
G24 32.9 ° 0.14 m
0.13 m
0.19 m
- -
G25 66.2 ° 0.09 m
0.05 m
0.12 m
- -
G29 40.6 ° 0.10 m
0.07 m
- - -
G31 19.8 ° 0.23 m
0.13 m
- - -
G32 47.1 ° 0.09 m
0.08 m
0.14 m
- -
R5 28.6 ° 0.18 m
0.21 m
- - -
R6 - - - - - -
R14 22.0 ° 0.16 m
0.13 m
- - -
R15 52.9 ° 0.11 m
0.11 m
- - -
R16 30.4 ° 0.14 m
0.13 m
- - -
R17 42.3 ° 0.10 m
0.11 m
- - -
R18 26.6 ° 0.11 m
0.13 m
- - -
R24 22.3 ° 0.13 m
0.16 m
- - -
E2 34.7 ° 0.13 m
- 0.22 m
0.21 m
0.04 m
E7 45.9 ° 0.10 m
- 0.16 m
0.18 m
0.04 m
E8 32.6 ° 0.11 m
- 0.28 m
0.26 m
0.05 m
E27 31.3 ° 0.19 m
- 0.27 m
0.31 m
0.10 m
E30 67.2 ° 0.08 m
- 0.11 m
0.13 m
0.02 m
C13 15.9 ° 0.17 m
- - 0.33 m
-
C19 - - - - - -
C20 - - - - - -
C23 - - - - - -
C27 - - - - - -
C28 - - - - - -
Average GPS: - 0.13 m
0.10 m
0.15 m
- -
Average GLONASS: - 0.13 m
0.14 m
- - -
Average Galileo: - 0.12 m
- 0.21 m
0.22 m
0.05 m
Average BeiDou: - 0.17 m
- - 0.33 m
-
Average QZSS: - - - - - -
Average All: - 0.13 m
0.12 m
0.19 m
0.24 m
0.05 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 - - - - -
80 - 85 - - - - -
75 - 80 - - - - -
70 - 75 - - - - -
65 - 70 0.08 m
0.05 m
0.12 m
0.13 m
0.02 m
60 - 65 0.15 m
0.04 m
0.12 m
- -
55 - 60 0.10 m
0.06 m
- - -
50 - 55 0.09 m
0.10 m
0.13 m
0.17 m
0.03 m
45 - 50 0.09 m
0.08 m
0.15 m
0.18 m
0.05 m
40 - 45 0.09 m
0.07 m
0.18 m
0.18 m
0.04 m
35 - 40 0.11 m
0.14 m
0.29 m
0.26 m
0.03 m
30 - 35 0.14 m
0.15 m
0.22 m
0.25 m
0.06 m
25 - 30 0.16 m
0.15 m
0.22 m
0.27 m
0.09 m
20 - 25 0.18 m
0.16 m
0.25 m
- -
15 - 20 0.15 m
0.16 m
- 0.33 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 2021/02/12 14:59:59.00

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 2.2 seconds to process this file 
-  This file was processed using version 7.1.0.7438