Leica SpiderQC v7.8 Quality Report


Program Run: 2024/03/12 20:40:53.65

File Details:


Observation File: brch072u15.24o
GPS Navigation File: brch072u15.24n
GLONASS Navigation File: brch072u15.24g
Galileo Navigation File: brch072u15.24l
BeiDou Navigation File: brch072u15.24f
Quality Testing:  Fail (See below for details) 

Station Details:


Marker Name/Number:  BIRCH RUN  BRCH   
Observer/Agency:  Shawn Roy  Michigan DOT   
Receiver #/Type/Vers:  1870851  LEICA GR50  4.80/7.900 
Antenna #/Type:  18274020  LEIAR20 LEIM   
Antenna Offsets (HEN):  0.000  0.000  0.000 
Approx Position (XYZ):  497093.890  -4626396.347  4347946.236 
Approx Position (plh):  43° 15' 2.80389" N  83° 52' 2.10186" W  161.085m 
Diff. Est-Header:  -5.6 m dX  2.2 m dY  -2.2 m dZ 
Diff. Est-Header:  6.4 m (900 estimates) 

Session Summary:


Time of first obs:  2024/03/12 20:15:00.00 GPS 
Time of last obs:  2024/03/12 20:29:59.00 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:  37 
Num SVs with nav:  91 
Total GPS orbits:  52 
Total GLONASS orbits:  30 
Total Galileo orbits:  235 
Total BeiDou orbits:  35 
SVs with obs:  G2 G3 G6 G11 G12 G14 G17 G19 G22 G24 G30 R5 R7 R11 R12 R13 R14 R21 R22 R23 R24 E12 E21 E24 E26 E31 E33 C11 C19 C22 C23 C24 C25 C26 C34 C43 C44  
SVs without obs:  G1 G4 G5 G7 G8 G9 G10 G13 G15 G16 G18 G20 G21 G23 G25 G26 G27 G28 G29 G31 G32 R1 R2 R3 R4 R6 R8 R9 R10 R15 R16 R17 R18 R19 R20 E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E13 E14 E15 E16 E17 E18 E19 E20 E22 E23 E25 E27 E28 E29 E30 E32 E34 E35 E36 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C12 C13 C14 C15 C16 C17 C18 C20 C21 C27 C28 C29 C30 C31 C32 C33 C35 C36 C37 C38 C39 C40 C41 C42 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:  G1 G2 G3 G4 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G24 G26 G27 G30 G31 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R16 R17 R18 R19 R20 R21 R22 R23 R24 E4 E5 E7 E9 E10 E12 E13 E15 E18 E19 E21 E24 E26 E27 E30 E31 E33 E34 C8 C11 C12 C13 C14 C19 C21 C22 C23 C24 C25 C26 C29 C30 C33 C34 C35 C36 C38 C42 C43 C44 C45 C57  
SVs without nav:  G5 G23 G25 G28 G29 G32 R15 E1 E2 E3 E6 E8 E11 E14 E16 E17 E20 E22 E23 E25 E28 E29 E32 E35 E36 C1 C2 C3 C4 C5 C6 C7 C9 C10 C15 C16 C17 C18 C20 C27 C28 C31 C32 C37 C39 C40 C41 C46 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 14 slips 
Multipath:  Pass  Value 0.02m MP1 / 0.03m MP2 / 0.04m 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 / 0.02m MP2, Threshold 0.5 m 
Data Completeness:  Fail  Value 0.0 %, Threshold 90.0 % 
Navigation Data:  Pass   
     
Galileo Specific Tests 
Cycle Slips:  Pass  Value 3 slips, Threshold 24 slips 
Multipath:  Pass  Value 0.04m MP1 / 0.06m MP5a / 0.06m MP5b / 0.03m 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 27 slips 
Multipath:  Pass  Value 0.01m MP1 / 0.03m MP2b / 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°:  29836 
Num possible obs > 0°:  34441 
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  3.2  2.8 
GDOP  3.1  4.1  3.5 

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 
E12  7.067  1 / 425  17.56° / 19.92°  217.89° / 219.34° 
C12  14.983  1 / 900  78.43° / 78.55°  308.03° / 329.93° 
Total:  22.050 (1322 observations) 

Receiver Clock 
Clock Slips > 15°:  0 
Max RX clock offset:  0.000023 ms (at 2024/03/12 20:16:33.00) 
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°:  29836  8672  7313  4851  9000  -  - 
Num possible obs > 0°:  34441  9379  9000  5882  10180  -  - 
Num obs with invalid nav:  -  -  -  -  -  -  - 
Num obs without nav:  -  -  -  -  -  -  - 
Num obs to unhealthy SV:  -  -  -  -  -  -  - 
               
Tracking over Elevation Mask (15°) 
Num obs > 15°:  19210  7035  3600  4075  4500  -  - 
% obs > 15°:   93.5 %  100.0 %  100.0 %  90.6 %  83.3 %  -  - 
Num possible obs > 15°:  20535  7035  3600  4500  5400  -  - 
Num complete obs > 15°:  7035  7035  -  -  -  -  - 
% complete obs > 15°:   34.3 %  100.0 %  -  -  -  -  - 
Num obs with WLF change:   -  -  -  -  -  -  - 
Average # SV per Epoch:  21.3   7.8   4.0   4.5   5.0   -  - 
               
Observation ratio w.r.t. L1/E1/B1I: 
Obs L2/B1C:  1.661   1.744   1.500   -  -  -  - 
Obs E5b/B2I:  0.580   -  -  1.000   0.200   -  - 
Obs L5/E5a/B2a:  0.757   0.616   -  1.000   -  -  - 
Obs E5a+b/B2a+b:  0.999   -  -  0.999   -  -  - 
Obs L6/E6/B3I/G2a:  1.000   -  -  -  1.000   -  - 
Obs G3:  -  -  -  -  -  -  - 

Cycle Slips               
Num cycle slips > 15°:  3  -  -  3  -  -  - 
% slips per complete obs:  0.043 %  -  -  -  -  -  - 
Num complete obs per slip:  2345   -  -  -  -  -  - 
IOD Slips > 15°:  -  -  -  -  -  -  - 
Outliers > 15°:  -  -  -  -  -  -  - 
LLI : Obs L1/E1/B1I:  0.0001   -  -  0.0002   -  -  - 
LLI : Obs L2/B1C:  -  -  -  -  -  -  - 
LLI : Obs E5b/B2I:  0.0002   -  -  0.0002   -  -  - 
LLI : Obs L5/E5a/B2a:  0.0001   -  -  0.0002   -  -  - 
LLI : Obs E5a+b/B2a+b:  0.0005   -  -  0.0005   -  -  - 
LLI : Obs L6/E6/B3I/G2a:  -  -  -  -  -  -  - 
LLI : Obs G3:  -  -  -  -  -  -  - 

Multipath               
MP (L1/E1/B1I) RMS:  0.021 m  0.016 m  0.014 m  0.043 m  0.012 m  -  - 
MP (L2/B1C) RMS:  0.031 m  0.034 m  0.024 m  -  -  -  - 
MP (L5/E5a/B2a) RMS:  0.051 m  0.041 m  -  0.062 m  -  -  - 
MP (E5b/B2I) RMS:  0.054 m  -  -  0.060 m  0.026 m  -  - 
MP (E5a+b/B2a+b) RMS:  0.028 m  -  -  0.028 m  -  -  - 
MP (L6/E6/B3I/G2a) RMS:  0.029 m  -  -  -  0.029 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 75.0 %
75.0 %
75.0 %
75.0 %
L2P 75.0 %
75.0 %
75.0 %
75.0 %
L2S 74.4 %
74.4 %
74.4 %
74.4 %
L2W 100.0 %
100.0 %
100.0 %
100.0 %
L5Q 75.7 %
75.7 %
75.7 %
75.7 %
L7I 20.0 %
20.0 %
20.0 %
20.0 %
L7Q 100.0 %
100.0 %
100.0 %
100.0 %
L8Q 99.9 %
99.9 %
99.9 %
99.9 %
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
G3 30.16° 30.49° 900 900 (100.0 %)
0 (0.0 %) 0
G6 49.47° 56.78° 900 900 (100.0 %)
0 (0.0 %) 0
G11 15.00° 20.05° 735 735 (100.0 %)
0 (0.0 %) 0
G14 40.73° 47.68° 900 900 (100.0 %)
0 (0.0 %) 0
G17 62.50° 67.03° 900 900 (100.0 %)
0 (0.0 %) 0
G19 68.79° 72.05° 900 900 (100.0 %)
0 (0.0 %) 0
G22 66.14° 73.24° 900 900 (100.0 %)
0 (0.0 %) 0
G24 25.19° 25.37° 900 900 (100.0 %)
0 (0.0 %) 0

SV GLONASS Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
R12 53.24° 62.24° 900 900 (100.0 %)
0 (0.0 %) 0
R13 58.69° 64.00° 900 900 (100.0 %)
0 (0.0 %) 0
R22 53.64° 60.93° 900 900 (100.0 %)
0 (0.0 %) 0
R23 53.38° 58.50° 900 900 (100.0 %)
0 (0.0 %) 0

SV Galileo Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
E12 19.92° 22.56° 900 475 (52.8 %)
0 (0.0 %) 3
E24 15.12° 19.76° 900 900 (100.0 %)
0 (0.0 %) 0
E26 47.82° 52.87° 900 900 (100.0 %)
0 (0.0 %) 0
E31 65.85° 70.60° 900 900 (100.0 %)
0 (0.0 %) 0
E33 71.98° 78.24° 900 900 (100.0 %)
0 (0.0 %) 0

SV BeiDou Min Elev Max Elev Possible Observations Actual Observations Observations with Invalid Ephemeris Cycle Slips
C11 27.98° 32.76° 900 900 (100.0 %)
0 (0.0 %) 0
C12 - - 900 0 (0.0 %)
0 (0.0 %) 0
C24 43.13° 49.61° 900 900 (100.0 %)
0 (0.0 %) 0
C25 46.74° 48.66° 900 900 (100.0 %)
0 (0.0 %) 0
C34 50.54° 55.40° 900 900 (100.0 %)
0 (0.0 %) 0
C44 61.84° 67.40° 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
G3 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G6 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G11 3.8 %
0.0 %
0.0 %
0.0 %
0.0 %
G14 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
G17 4.7 %
0.0 %
0.0 %
0.0 %
100.0 %
G19 4.7 %
0.0 %
100.0 %
0.0 %
100.0 %
G22 4.7 %
0.0 %
100.0 %
0.0 %
100.0 %
G24 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Observations Missing L1C Missing L2C Missing L2P
R12 4.7 %
0.0 %
0.0 %
0.0 %
R13 4.7 %
0.0 %
0.0 %
0.0 %
R22 4.7 %
0.0 %
0.0 %
0.0 %
R23 4.7 %
0.0 %
100.0 %
100.0 %

SV Galileo Observations Missing L1C Missing L5Q Missing L7Q Missing L8Q
E12 2.5 %
0.0 %
0.4 %
0.4 %
0.6 %
E24 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E26 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E31 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %
E33 4.7 %
0.0 %
0.0 %
0.0 %
0.0 %

SV BeiDou Observations Missing L2I Missing L7I Missing L6I
C11 4.7 %
0.0 %
0.0 %
0.0 %
C24 4.7 %
0.0 %
100.0 %
0.0 %
C25 4.7 %
0.0 %
100.0 %
0.0 %
C34 4.7 %
0.0 %
100.0 %
0.0 %
C44 4.7 %
0.0 %
100.0 %
0.0 %

Missing code observations by satellite > 15°: 
SV GPS Missing C1C Missing C2S Missing C2W Missing C5Q
G3 0.0 %
0.0 %
0.0 %
0.0 %
G6 0.0 %
0.0 %
0.0 %
0.0 %
G11 0.0 %
0.0 %
0.0 %
0.0 %
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 %
G22 0.0 %
100.0 %
0.0 %
100.0 %
G24 0.0 %
0.0 %
0.0 %
0.0 %

SV GLONASS Missing C1C Missing C2C Missing C2P
R12 0.0 %
0.0 %
0.0 %
R13 0.0 %
0.0 %
0.0 %
R22 0.0 %
0.0 %
0.0 %
R23 0.0 %
100.0 %
100.0 %

SV Galileo Missing C1C Missing C5Q Missing C7Q Missing C8Q
E12 0.0 %
0.4 %
0.4 %
0.6 %
E24 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 C7I Missing C6I
C11 0.0 %
0.0 %
0.0 %
C24 0.0 %
100.0 %
0.0 %
C25 0.0 %
100.0 %
0.0 %
C34 0.0 %
100.0 %
0.0 %
C44 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
2.4 %
70 - 75 0
0
0
0
0
0
8.2 %
65 - 70 0
0
0
0
0
0
12.3 %
60 - 65 0
0
0
0
0
0
10.6 %
55 - 60 0
0
0
0
0
0
11.7 %
50 - 55 0
0
0
0
0
0
13.4 %
45 - 50 0
0
0
0
0
0
12.2 %
40 - 45 0
0
0
0
0
0
4.2 %
35 - 40 0
0
0
0
0
0
0.0 %
30 - 35 0
0
0
0
0
0
7.4 %
25 - 30 0
0
0
0
0
0
6.7 %
20 - 25 0
0
0
0
0
0
2.4 %
15 - 20 0
0
3
0
0
0
8.5 %
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
G3 44.8
46.6
51.6
G6 50.7
52.4
56.7
G11 40.1
43.8
47.1
G14 48.8
51.1
54.3
G17 52.2
52.6
-
G19 52.7
52.7
-
G22 51.8
51.6
-
G24 41.5
44.6
49.8
Average GPS: 47.8
49.4
51.9

SV GLONASS G1 G2
R12 53.1
51.0
R13 42.6
46.4
R22 53.7
52.2
R23 49.9
-
Average GLONASS: 49.8
49.9

SV Galileo E1 E5a E5b E5a+b
E12 38.7
43.5
42.8
46.4
E24 42.6
44.7
43.6
47.3
E26 52.3
53.9
53.8
57.0
E31 54.0
55.8
55.6
58.9
E33 54.6
56.5
56.4
59.6
Average Galileo: 48.5
50.9
50.4
53.8

SV BeiDou B1I B2I B3I
C11 42.9
48.4
46.2
C24 50.0
- 50.7
C25 50.1
- 50.7
C34 51.2
- 51.3
C44 53.1
- 53.3
Average BeiDou: 49.4
48.4
50.4

Code multipath by satellite > 15°: 
SV GPS Av Elev MP (L1) MP (L2) MP (L5)
G3 30.3 ° 0.03 m
0.07 m
0.05 m
G6 53.1 ° 0.01 m
0.03 m
0.02 m
G11 17.5 ° 0.02 m
0.03 m
0.05 m
G14 44.2 ° 0.01 m
0.02 m
0.04 m
G17 64.8 ° 0.01 m
0.04 m
-
G19 70.4 ° 0.02 m
0.03 m
-
G22 69.7 ° 0.01 m
0.01 m
-
G24 25.3 ° 0.02 m
0.04 m
0.05 m
Average GPS: - 0.02 m
0.03 m
0.04 m

SV GLONASS Av Elev MP (G1) MP (G2)
R12 57.7 ° 0.01 m
0.05 m
R13 61.3 ° 0.01 m
0.02 m
R22 57.3 ° 0.02 m
0.01 m
R23 - - -
Average GLONASS: - 0.01 m
0.02 m

SV Galileo Av Elev MP (E1) MP (E5a) MP (E5b) MP (E5a+b)
E12 21.2 ° 0.11 m
0.16 m
0.15 m
0.03 m
E24 17.4 ° 0.06 m
0.07 m
0.07 m
0.09 m
E26 50.3 ° 0.02 m
0.03 m
0.03 m
0.01 m
E31 68.2 ° 0.01 m
0.03 m
0.03 m
0.01 m
E33 75.1 ° 0.01 m
0.02 m
0.02 m
0.01 m
Average Galileo: - 0.04 m
0.06 m
0.06 m
0.03 m

SV BeiDou Av Elev MP (B1I) MP (B2I) MP (B3I)
C11 30.4 ° 0.01 m
0.03 m
0.03 m
C24 46.4 ° 0.01 m
- 0.02 m
C25 47.7 ° 0.02 m
- 0.04 m
C34 53.0 ° 0.01 m
- 0.02 m
C44 64.6 ° 0.01 m
- 0.04 m
Average BeiDou: - 0.01 m
0.03 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 - - - - - - -
75 - 80 0.01 m
- 0.01 m
0.01 m
0.01 m
- -
70 - 75 0.01 m
0.02 m
0.03 m
0.02 m
0.01 m
- -
65 - 70 0.01 m
0.03 m
0.03 m
0.03 m
0.01 m
0.02 m
-
60 - 65 0.01 m
0.03 m
- - - 0.05 m
-
55 - 60 0.02 m
0.02 m
0.01 m
- - - -
50 - 55 0.01 m
0.03 m
0.02 m
0.03 m
0.01 m
0.02 m
-
45 - 50 0.01 m
0.02 m
0.03 m
0.02 m
0.01 m
0.03 m
-
40 - 45 0.01 m
0.02 m
0.04 m
- - 0.02 m
-
35 - 40 - - - - - - -
30 - 35 0.02 m
0.07 m
0.05 m
0.02 m
- 0.03 m
-
25 - 30 0.02 m
0.04 m
0.05 m
0.03 m
- 0.03 m
-
20 - 25 0.11 m
- 0.16 m
0.15 m
0.03 m
- -
15 - 20 0.04 m
0.03 m
0.06 m
0.07 m
0.09 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 20:29:59.00

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  
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-  This file was processed using version 7.8.0.9445