Leica SpiderQC v7.5 Quality Report

Program Run:

2021/07/05 08:02:10.54

File Details:

Observation File:	algc186h.21o
GPS Navigation File:	algc186h.21n
GLONASS Navigation File:	algc186h.21g
Galileo Navigation File:	algc186h.21l
BeiDou Navigation File:	algc186h.21f

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:	7.0 m dX	-5.1 m dY	5.9 m dZ
Diff. Est-Header:	10.4 m (3600 estimates)

Session Summary:

Time of first obs:	2021/07/05 07:00:00.00 GPS
Time of last obs:	2021/07/05 07:59:59.00 GPS
Session length:	59.98 minutes
GPS week:	2165, day 1
Observation interval:	1.00 seconds
UTC leap seconds:	18 seconds

Num SVs with obs:	42
Num SVs with nav:	102
Total GPS orbits:	36
Total GLONASS orbits:	40
Total Galileo orbits:	121
Total BeiDou orbits:	31
Total QZSS orbits:	0
Total NavIC orbits:	0
SVs with obs:	G2 G4 G5 G12 G16 G18 G20 G23 G25 G26 G27 G29 G31 G32 R7 R9 R14 R15 R16 R17 R18 R19 R24 E1 E4 E13 E15 E19 E21 E26 E27 E30 C5 C8 C11 C12 C13 C23 C24 C25 C26 C28
SVs without obs:	G1 G3 G6 G7 G8 G9 G10 G11 G13 G14 G15 G17 G19 G21 G22 G24 G28 G30 R1 R2 R3 R4 R5 R6 R8 R10 R11 R12 R13 R20 R21 R22 R23 E2 E3 E5 E6 E7 E8 E9 E10 E11 E12 E14 E16 E17 E18 E20 E22 E23 E24 E25 E28 E29 E31 E32 E33 E34 E35 E36 C1 C2 C3 C4 C6 C7 C9 C10 C14 C15 C16 C17 C18 C19 C20 C21 C22 C27 C29 C30 C31 C32 C33 C34 C35 C36 C37 J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 I1 I2 I3 I4 I5 I6 I7
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 4 slips, Threshold 40 slips
Multipath:	Pass	Value 0.08m MP1 / 0.08m MP2 / 0.11m MP5, Threshold 0.5 m
Data Completeness:	Pass	Value 100.0 %, Threshold 95.0 %
Navigation Data:	Pass


GLONASS Specific Tests
Cycle Slips:	Pass	Value 2 slips, Threshold 102 slips
Multipath:	Pass	Value 0.10m MP1 / 0.11m MP2, Threshold 0.5 m
Data Completeness:	Fail	Value 89.1 %, Threshold 90.0 %
Navigation Data:	Pass


Galileo Specific Tests
Cycle Slips:	Pass	Value 43 slips, Threshold 108 slips
Multipath:	Pass	Value 0.07m MP1 / 0.13m MP5a / 0.15m MP5b / 0.05m MP5a+b, Threshold 0.5 m
Data Completeness:	Pass	Value 99.9 %, Threshold 90.0 %
Navigation Data:	Pass


BeiDou Specific Tests
Cycle Slips:	Pass	Value 0 slips, Threshold 130 slips
Multipath:	Pass	Value 0.34m MP1 / 0.18m MP2b, Threshold 0.5 m
Data Completeness:	Pass	Value 100.0 %, Threshold 90.0 %
Navigation Data:	Fail

General Quality Indicators:

Tracking
Num obs > 0°:	118111
Num possible obs > 0°:	122427
Num obs with invalid nav:	0
Num obs without nav:	5282
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°:	1523	(42.3 %)
Epochs with full data > 15°:	1518	(42.2 %)

Satellite Geometry
DOP	Minimum	Maximum	Average
PDOP	2.1	2.8	2.5
GDOP	2.6	3.5	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
R19	34.600	731 / 2807	15.00° / 30.01°	201.41° / 208.38°
Total:	34.600 (2075 observations)

Receiver Clock
Clock Slips > 15°:	0
Max RX clock offset:	0.000043 ms (at 2021/07/05 07:34:40.00)
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°:	118111	36751	24535	28812	28013	-	-
Num possible obs > 0°:	122427	39273	27679	32400	23075	-	-
Num obs with invalid nav:	-	-	-	-	-	-	-
Num obs without nav:	5282	-	-	-	5282	-	-
Num obs to unhealthy SV:	-	-	-	-	-	-	-

Tracking over Elevation Mask (15°)
Num obs > 15°:	76608	19910	17059	18039	21600	-	-
% obs > 15°:	97.4 %	100.0 %	89.1 %	100.0 %	100.0 %	-	-
Num possible obs > 15°:	78686	19911	19136	18039	21600	-	-
Num complete obs > 15°:	76580	19909	17059	18012	21600	-	-
% complete obs > 15°:	97.3 %	100.0 %	89.1 %	99.9 %	100.0 %	-	-
Num obs with WLF change:	-	-	-	-	-	-	-
Average # SV per Epoch:	21.3	5.5	4.7	5.0	6.0	-	-


Observation ratio w.r.t. L1/E1/B1I:
Obs L2/B1C:	1.958	1.923	2.000	-	-	-	-
Obs E5b/B2I:	0.728	-	-	1.001	0.500	-	-
Obs L5/E5a/B2a:	0.770	0.561	-	1.001	-	-	-
Obs E5a+b/B2a+b:	1.001	-	-	1.001	-	-	-
Obs L6/E6/B3I/G2a:	-	-	-	-	-	-	-
Obs G3:	-	-	-	-	-	-	-

Cycle Slips
Num cycle slips > 15°:	49	4	2	43	-	-	-
% slips per complete obs:	0.064 %	0.020 %	0.012 %	0.239 %	-	-	-
Num complete obs per slip:	1562	4977	8529	418	-	-	-
IOD Slips > 15°:	-	-	-	-	-	-	-
Outliers > 15°:	-	-	-	-	-	-	-
LLI : Obs L1/E1/B1I:	0.0006	0.0001	0.0001	0.0023	-	-	-
LLI : Obs L2/B1C:	0.0000	0.0000	0.0000	-	-	-	-
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:	0.141 m	0.076 m	0.099 m	0.069 m	0.344 m	-	-
MP (L2/B1C) RMS:	0.093 m	0.082 m	0.107 m	-	-	-	-
MP (L5/E5a/B2a) RMS:	0.127 m	0.115 m	-	0.134 m	-	-	-
MP (E5b/B2I) RMS:	0.157 m	-	-	0.147 m	0.181 m	-	-
MP (E5a+b/B2a+b) RMS:	0.052 m	-	-	0.052 m	-	-	-
MP (L6/E6/B3I/G2a) RMS:	-	-	-	-	-	-	-
MP (G3) RMS:	-	-	-	-	-	-	-

Extended Quality Information:

Tracking by observation type > 15°:
Type	Code	Phase	SNR	Doppler
L1C	100.0 %	99.9 %	100.0 %	100.0 %
L1I	100.0 %	100.0 %	100.0 %	100.0 %
L2C	100.0 %	100.0 %	100.0 %	100.0 %
L2P	100.0 %	100.0 %	100.0 %	100.0 %
L2S	92.3 %	92.3 %	92.3 %	92.3 %
L2W	100.0 %	100.0 %	100.0 %	100.0 %
L5Q	77.0 %	77.0 %	77.0 %	77.0 %
L7I	50.0 %	50.0 %	50.0 %	50.0 %
L7Q	100.0 %	100.0 %	100.0 %	100.0 %
L8Q	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
G16	15.00°	23.38°	1543	1542 (99.9 %)	0 (0.0 %)	1
G18	33.81°	59.12°	3600	3600 (100.0 %)	0 (0.0 %)	1
G25	23.86°	41.46°	3600	3600 (100.0 %)	0 (0.0 %)	2
G26	30.02°	51.33°	3600	3600 (100.0 %)	0 (0.0 %)	0
G29	40.36°	66.76°	3600	3600 (100.0 %)	0 (0.0 %)	0
G31	62.34°	71.72°	3600	3600 (100.0 %)	0 (0.0 %)	0
G32	15.00°	17.16°	368	368 (100.0 %)	0 (0.0 %)	0

SV GLONASS	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
R14	15.00°	26.09°	1866	1866 (100.0 %)	0 (0.0 %)	0
R15	52.75°	65.43°	3600	3600 (100.0 %)	0 (0.0 %)	0
R16	30.68°	59.59°	3600	3600 (100.0 %)	0 (0.0 %)	0
R17	35.74°	66.07°	3600	3600 (100.0 %)	0 (0.0 %)	0
R18	54.46°	86.50°	3600	3600 (100.0 %)	0 (0.0 %)	0
R19	32.17°	38.76°	2870	793 (27.6 %)	0 (0.0 %)	2

SV Galileo	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
E1	15.00°	17.63°	594	594 (100.0 %)	0 (0.0 %)	0
E13	48.18°	72.04°	3600	3600 (100.0 %)	0 (0.0 %)	0
E15	37.49°	50.26°	3600	3600 (100.0 %)	0 (0.0 %)	1
E19	15.00°	18.84°	1182	1182 (100.0 %)	0 (0.0 %)	42
E21	46.56°	64.06°	3600	3600 (100.0 %)	0 (0.0 %)	0
E26	15.00°	26.31°	1863	1863 (100.0 %)	0 (0.0 %)	0
E27	51.51°	62.01°	3600	3600 (100.0 %)	0 (0.0 %)	0

SV BeiDou	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
C5	-	-	0	0 (-)	1682 (-)	0
C8	-	-	0	0 (-)	3600 (-)	0
C11	56.57°	82.06°	3600	3600 (100.0 %)	0 (0.0 %)	0
C12	41.80°	64.99°	3600	3600 (100.0 %)	0 (0.0 %)	0
C13	18.95°	21.66°	3600	3600 (100.0 %)	0 (0.0 %)	0
C23	16.85°	38.11°	3600	3600 (100.0 %)	0 (0.0 %)	0
C24	28.44°	50.32°	3600	3600 (100.0 %)	0 (0.0 %)	0
C25	67.05°	86.29°	3600	3600 (100.0 %)	0 (0.0 %)	0

Missing phase observations by satellite > 15°:

SV GPS	Observations	Missing L1C	Missing L2S	Missing L2W	Missing L5Q
G16	2.0 %	0.1 %	100.0 %	0.1 %	100.0 %
G18	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
G25	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
G26	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
G29	4.7 %	0.0 %	0.0 %	0.0 %	100.0 %
G31	4.7 %	0.0 %	0.0 %	0.0 %	100.0 %
G32	0.5 %	0.0 %	0.0 %	0.0 %	0.0 %

SV GLONASS	Observations	Missing L1C	Missing L2C	Missing L2P
R14	2.4 %	0.0 %	0.0 %	0.0 %
R15	4.7 %	0.0 %	0.0 %	0.0 %
R16	4.7 %	0.0 %	0.0 %	0.0 %
R17	4.7 %	0.0 %	0.0 %	0.0 %
R18	4.7 %	0.0 %	0.0 %	0.0 %
R19	1.0 %	0.0 %	0.5 %	0.5 %

SV Galileo	Observations	Missing L1C	Missing L5Q	Missing L7Q	Missing L8Q
E1	0.8 %	0.0 %	0.0 %	0.0 %	0.0 %
E13	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
E15	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
E19	1.5 %	2.3 %	0.0 %	0.0 %	0.0 %
E21	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %
E26	2.4 %	0.0 %	0.0 %	0.0 %	0.0 %
E27	4.7 %	0.0 %	0.0 %	0.0 %	0.0 %

SV BeiDou	Observations	Missing L2I	Missing L7I
C11	4.7 %	0.0 %	0.0 %
C12	4.7 %	0.0 %	0.0 %
C13	4.7 %	0.0 %	0.0 %
C23	4.7 %	0.0 %	100.0 %
C24	4.7 %	0.0 %	100.0 %
C25	4.7 %	0.0 %	100.0 %

Missing code observations by satellite > 15°:

SV GPS	Missing C1C	Missing C2S	Missing C2W	Missing C5Q
G16	0.0 %	100.0 %	0.0 %	100.0 %
G18	0.0 %	0.0 %	0.0 %	0.0 %
G25	0.0 %	0.0 %	0.0 %	0.0 %
G26	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 %

SV GLONASS	Missing C1C	Missing C2C	Missing C2P
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 %
R19	0.0 %	0.1 %	0.1 %

SV Galileo	Missing C1C	Missing C5Q	Missing C7Q	Missing C8Q
E1	0.0 %	0.0 %	0.0 %	0.0 %
E13	0.0 %	0.0 %	0.0 %	0.0 %
E15	0.0 %	0.0 %	0.0 %	0.0 %
E19	2.3 %	0.0 %	0.0 %	0.0 %
E21	0.0 %	0.0 %	0.0 %	0.0 %
E26	0.0 %	0.0 %	0.0 %	0.0 %
E27	0.0 %	0.0 %	0.0 %	0.0 %

SV BeiDou	Missing C2I	Missing C7I
C11	0.0 %	0.0 %
C12	0.0 %	0.0 %
C13	0.0 %	0.0 %
C23	0.0 %	100.0 %
C24	0.0 %	100.0 %
C25	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	Cycle Slips NavIC	Observations
85 - 90	0	0	0	0	0	0	1.8 %
80 - 85	0	0	0	0	0	0	2.4 %
75 - 80	0	0	0	0	0	0	2.6 %
70 - 75	0	0	0	0	0	0	5.3 %
65 - 70	0	0	0	0	0	0	6.5 %
60 - 65	0	0	0	0	0	0	9.9 %
55 - 60	0	0	0	0	0	0	11.1 %
50 - 55	0	0	0	0	0	0	9.0 %
45 - 50	0	0	0	0	0	0	10.1 %
40 - 45	1	0	1	0	0	0	8.1 %
35 - 40	0	0	0	0	0	0	7.9 %
30 - 35	1	2	0	0	0	0	6.1 %
25 - 30	1	0	0	0	0	0	3.3 %
20 - 25	0	0	0	0	0	0	8.0 %
15 - 20	1	0	42	0	0	0	8.0 %
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
G16	40.0	38.5	-
G18	49.3	51.8	55.2
G25	44.7	46.7	51.3
G26	47.6	49.7	54.1
G29	50.7	50.4	-
G31	52.8	53.1	-
G32	41.7	43.2	46.5
Average GPS:	46.7	47.6	51.7

SV GLONASS	G1	G2
R14	43.8	41.7
R15	53.6	50.6
R16	45.6	43.0
R17	51.1	48.5
R18	53.5	51.4
R19	36.2	42.9
Average GLONASS:	47.3	46.3

SV Galileo	E1	E5a	E5b	E5a+b
E1	41.2	44.8	44.9	48.1
E13	53.5	55.2	55.0	58.3
E15	50.4	52.7	52.5	55.8
E19	37.3	40.4	39.6	43.2
E21	52.7	54.5	54.4	57.7
E26	43.0	46.0	45.9	49.2
E27	53.0	54.9	54.8	58.1
Average Galileo:	47.3	49.8	49.6	52.9

SV BeiDou	B1I	B2I
C11	52.2	55.1
C12	48.6	53.8
C13	39.0	40.8
C23	44.3	-
C24	48.8	-
C25	54.3	-
Average BeiDou:	47.9	49.9

Code multipath by satellite > 15°:

SV GPS	Av Elev	MP (L1)	MP (L2)	MP (L5)
G16	19.2 °	0.13 m	0.20 m	-
G18	46.5 °	0.08 m	0.09 m	0.13 m
G25	32.7 °	0.09 m	0.07 m	0.14 m
G26	40.7 °	0.07 m	0.09 m	0.14 m
G29	53.6 °	0.04 m	0.03 m	-
G31	67.0 °	0.07 m	0.04 m	-
G32	16.1 °	0.05 m	0.05 m	0.06 m
Average GPS:	-	0.08 m	0.08 m	0.11 m

SV GLONASS	Av Elev	MP (G1)	MP (G2)
R14	20.5 °	0.13 m	0.19 m
R15	59.1 °	0.06 m	0.08 m
R16	45.1 °	0.08 m	0.08 m
R17	50.9 °	0.05 m	0.08 m
R18	70.5 °	0.05 m	0.08 m
R19	35.5 °	0.23 m	0.13 m
Average GLONASS:	-	0.10 m	0.11 m

SV Galileo	Av Elev	MP (E1)	MP (E5a)	MP (E5b)	MP (E5a+b)
E1	16.3 °	0.13 m	0.34 m	0.35 m	0.08 m
E13	60.1 °	0.07 m	0.11 m	0.12 m	0.05 m
E15	43.9 °	0.03 m	0.10 m	0.06 m	0.02 m
E19	16.9 °	0.11 m	0.11 m	0.14 m	0.07 m
E21	55.3 °	0.03 m	0.06 m	0.08 m	0.02 m
E26	20.7 °	0.07 m	0.11 m	0.17 m	0.10 m
E27	56.8 °	0.04 m	0.11 m	0.10 m	0.02 m
Average Galileo:	-	0.07 m	0.13 m	0.15 m	0.05 m

SV BeiDou	Av Elev	MP (B1I)	MP (B2I)
C11	69.3 °	0.16 m	0.13 m
C12	53.4 °	0.16 m	0.09 m
C13	20.3 °	0.35 m	0.32 m
C23	27.5 °	0.45 m	-
C24	39.4 °	0.74 m	-
C25	76.7 °	0.19 m	-
Average BeiDou:	-	0.34 m	0.18 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	0.22 m	0.08 m	-	-	-	-	-
80 - 85	0.09 m	0.06 m	-	0.22 m	-	-	-
75 - 80	0.13 m	0.10 m	-	0.15 m	-	-	-
70 - 75	0.09 m	0.05 m	0.09 m	0.08 m	0.02 m	-	-
65 - 70	0.07 m	0.05 m	0.05 m	0.08 m	0.02 m	-	-
60 - 65	0.09 m	0.07 m	0.09 m	0.12 m	0.02 m	-	-
55 - 60	0.07 m	0.06 m	0.11 m	0.09 m	0.03 m	-	-
50 - 55	0.05 m	0.07 m	0.10 m	0.10 m	0.05 m	-	-
45 - 50	0.19 m	0.08 m	0.09 m	0.08 m	0.03 m	-	-
40 - 45	0.12 m	0.09 m	0.14 m	0.08 m	0.02 m	-	-
35 - 40	0.14 m	0.08 m	0.12 m	0.06 m	0.01 m	-	-
30 - 35	0.34 m	0.10 m	0.16 m	-	-	-	-
25 - 30	0.23 m	0.11 m	0.15 m	0.10 m	0.05 m	-	-
20 - 25	0.27 m	0.17 m	0.08 m	0.31 m	0.10 m	-	-
15 - 20	0.21 m	0.18 m	0.17 m	0.22 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:

- Orbit missing or expired for SV C8 starting 2021/07/05 07:00:00.00.
- Orbit missing or expired for SV C5 starting 2021/07/05 07:31:58.00.
- Updated header information or comments after epoch 2021/07/05 07:59:59.00

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 G1 code and phase measurements with a SNR of at least 0
(#)	A complete Galileo observation contains non-zero E1, E5a code and phase measurements with a SNR of at least 0
(#)	A complete BeiDou observation contains non-zero B1I 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
(#)	A complete NavIC observation contains non-zero L5 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 1.7 seconds to process this file
-	This file was processed using version 7.5.2.8679