Leica SpiderQC v7.5 Quality Report

Program Run:

2021/08/17 08:01:29.93

File Details:

Observation File:	algc229h.21o
GPS Navigation File:	algc229h.21n
GLONASS Navigation File:	algc229h.21g
Galileo Navigation File:	algc229h.21l
BeiDou Navigation File:	algc229h.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:	4.2 m dX	-5.4 m dY	4.7 m dZ
Diff. Est-Header:	8.3 m (3600 estimates)

Session Summary:

Time of first obs:	2021/08/17 07:00:00.00 GPS
Time of last obs:	2021/08/17 07:59:59.00 GPS
Session length:	59.98 minutes
GPS week:	2171, day 2
Observation interval:	1.00 seconds
UTC leap seconds:	18 seconds

Num SVs with obs:	36
Num SVs with nav:	102
Total GPS orbits:	37
Total GLONASS orbits:	38
Total Galileo orbits:	101
Total BeiDou orbits:	33
Total QZSS orbits:	0
Total NavIC orbits:	0
SVs with obs:	G7 G8 G10 G16 G18 G21 G23 G26 G27 G31 R5 R7 R8 R12 R13 R21 R22 R23 E1 E12 E13 E21 E24 E26 E31 E33 C5 C11 C12 C13 C14 C21 C22 C23 C24 C25
SVs without obs:	G1 G2 G3 G4 G5 G6 G9 G11 G12 G13 G14 G15 G17 G19 G20 G22 G24 G25 G28 G29 G30 G32 R1 R2 R3 R4 R6 R9 R10 R11 R14 R15 R16 R17 R18 R19 R20 R24 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E14 E15 E16 E17 E18 E19 E20 E22 E23 E25 E27 E28 E29 E30 E32 E34 E35 E36 C1 C2 C3 C4 C6 C7 C8 C9 C10 C15 C16 C17 C18 C19 C20 C26 C27 C28 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 1 slips, Threshold 53 slips
Multipath:	Pass	Value 0.08m MP1 / 0.09m MP2 / 0.13m MP5, Threshold 0.5 m
Data Completeness:	Pass	Value 100.0 %, Threshold 95.0 %
Navigation Data:	Pass


GLONASS Specific Tests
Cycle Slips:	Pass	Value 4 slips, Threshold 105 slips
Multipath:	Pass	Value 0.14m MP1 / 0.13m MP2, Threshold 0.5 m
Data Completeness:	Pass	Value 96.4 %, Threshold 90.0 %
Navigation Data:	Fail


Galileo Specific Tests
Cycle Slips:	Pass	Value 2 slips, Threshold 110 slips
Multipath:	Pass	Value 0.06m MP1 / 0.11m MP5a / 0.10m MP5b / 0.05m MP5a+b, Threshold 0.5 m
Data Completeness:	Pass	Value 95.7 %, Threshold 90.0 %
Navigation Data:	Pass


BeiDou Specific Tests
Cycle Slips:	Pass	Value 0 slips, Threshold 123 slips
Multipath:	Pass	Value 0.32m MP1 / 0.07m MP2b, Threshold 0.5 m
Data Completeness:	Pass	Value 100.0 %, Threshold 90.0 %
Navigation Data:	Pass

General Quality Indicators:

Tracking
Num obs > 0°:	112030
Num possible obs > 0°:	118323
Num obs with invalid nav:	0
Num obs without nav:	1
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°:	2130	(59.2 %)
Epochs with full data > 15°:	2128	(59.1 %)

Satellite Geometry
DOP	Minimum	Maximum	Average
PDOP	2.1	2.3	2.2
GDOP	2.6	2.9	2.7

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	10.833	1 / 651	17.29° / 22.20°	329.46° / 328.26°
E12	13.633	1365 / 2183	15.00° / 18.67°	234.49° / 238.41°
Total:	24.467 (1468 observations)

Receiver Clock
Clock Slips > 15°:	0
Max RX clock offset:	0.000032 ms (at 2021/08/17 07:54:47.00)
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°:	112030	34532	22235	22538	32725	-	-
Num possible obs > 0°:	118323	35388	23051	26858	33026	-	-
Num obs with invalid nav:	-	-	-	-	-	-	-
Num obs without nav:	1	-	1	-	-	-	-
Num obs to unhealthy SV:	-	-	-	-	-	-	-

Tracking over Elevation Mask (15°)
Num obs > 15°:	83037	26727	17488	18329	20493	-	-
% obs > 15°:	98.3 %	100.0 %	96.4 %	95.7 %	100.0 %	-	-
Num possible obs > 15°:	84507	26727	18139	19148	20493	-	-
Num complete obs > 15°:	83035	26727	17488	18327	20493	-	-
% complete obs > 15°:	98.3 %	100.0 %	96.4 %	95.7 %	100.0 %	-	-
Num obs with WLF change:	-	-	-	-	-	-	-
Average # SV per Epoch:	23.1	7.4	4.9	5.1	5.7	-	-


Observation ratio w.r.t. L1/E1/B1I:
Obs L2/B1C:	1.731	1.824	1.588	-	-	-	-
Obs E5b/B2I:	0.658	-	-	1.000	0.351	-	-
Obs L5/E5a/B2a:	0.886	0.808	-	1.000	-	-	-
Obs E5a+b/B2a+b:	1.000	-	-	1.000	-	-	-
Obs L6/E6/B3I/G2a:	-	-	-	-	-	-	-
Obs G3:	-	-	-	-	-	-	-

Cycle Slips
Num cycle slips > 15°:	7	1	4	2	-	-	-
% slips per complete obs:	0.008 %	0.004 %	0.023 %	0.011 %	-	-	-
Num complete obs per slip:	11862	26727	4372	9163	-	-	-
IOD Slips > 15°:	-	-	-	-	-	-	-
Outliers > 15°:	-	-	-	-	-	-	-
LLI : Obs L1/E1/B1I:	0.0000	-	0.0001	0.0001	-	-	-
LLI : Obs L2/B1C:	0.0000	-	0.0000	-	-	-	-
LLI : Obs E5b/B2I:	0.0000	-	-	0.0001	-	-	-
LLI : Obs L5/E5a/B2a:	0.0000	-	-	0.0001	-	-	-
LLI : Obs E5a+b/B2a+b:	0.0001	-	-	0.0001	-	-	-
LLI : Obs L6/E6/B3I/G2a:	-	-	-	-	-	-	-
LLI : Obs G3:	-	-	-	-	-	-	-

Multipath
MP (L1/E1/B1I) RMS:	0.139 m	0.075 m	0.140 m	0.055 m	0.317 m	-	-
MP (L2/B1C) RMS:	0.101 m	0.086 m	0.127 m	-	-	-	-
MP (L5/E5a/B2a) RMS:	0.118 m	0.129 m	-	0.108 m	-	-	-
MP (E5b/B2I) RMS:	0.094 m	-	-	0.101 m	0.075 m	-	-
MP (E5a+b/B2a+b) RMS:	0.048 m	-	-	0.048 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 %	100.0 %	100.0 %	100.0 %
L1I	100.0 %	100.0 %	100.0 %	100.0 %
L2C	79.4 %	79.4 %	79.4 %	79.4 %
L2P	79.4 %	79.4 %	79.4 %	79.4 %
L2S	82.4 %	82.4 %	82.4 %	82.4 %
L2W	100.0 %	100.0 %	100.0 %	100.0 %
L5Q	88.6 %	88.6 %	88.6 %	88.6 %
L7I	35.1 %	35.1 %	35.1 %	35.1 %
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
G8	18.37°	36.56°	3600	3600 (100.0 %)	0 (0.0 %)	0
G10	27.61°	46.97°	3600	3600 (100.0 %)	0 (0.0 %)	0
G16	69.48°	89.72°	3600	3600 (100.0 %)	0 (0.0 %)	0
G18	16.66°	40.95°	3600	3600 (100.0 %)	0 (0.0 %)	1
G21	15.00°	21.89°	1107	1107 (100.0 %)	0 (0.0 %)	0
G23	34.10°	37.55°	3600	3600 (100.0 %)	0 (0.0 %)	0
G26	45.14°	73.54°	3600	3600 (100.0 %)	0 (0.0 %)	0
G27	45.45°	61.02°	3600	3600 (100.0 %)	0 (0.0 %)	0
G31	15.00°	17.78°	420	420 (100.0 %)	0 (0.0 %)	0

SV GLONASS	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
R7	15.00°	18.15°	557	557 (100.0 %)	0 (0.0 %)	0
R8	-	-	0	0 (-)	1 (-)	0
R12	58.34°	70.95°	3600	3600 (100.0 %)	0 (0.0 %)	1
R13	22.21°	42.50°	3600	2949 (81.9 %)	0 (0.0 %)	2
R21	15.00°	34.84°	3182	3182 (100.0 %)	0 (0.0 %)	0
R22	49.05°	63.66°	3600	3600 (100.0 %)	0 (0.0 %)	1
R23	17.02°	34.46°	3600	3600 (100.0 %)	0 (0.0 %)	0

SV Galileo	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
E1	54.95°	80.34°	3600	3600 (100.0 %)	0 (0.0 %)	0
E12	18.68°	24.78°	2236	1417 (63.4 %)	0 (0.0 %)	2
E21	15.00°	29.08°	2512	2512 (100.0 %)	0 (0.0 %)	0
E26	45.12°	65.91°	3600	3600 (100.0 %)	0 (0.0 %)	0
E31	40.94°	58.90°	3600	3600 (100.0 %)	0 (0.0 %)	0
E33	59.33°	71.76°	3600	3600 (100.0 %)	0 (0.0 %)	0

SV BeiDou	Min Elev	Max Elev	Possible Observations	Actual Observations	Observations with Invalid Ephemeris	Cycle Slips
C11	54.59°	63.18°	3600	3600 (100.0 %)	0 (0.0 %)	0
C12	39.25°	57.07°	3600	3600 (100.0 %)	0 (0.0 %)	0
C21	15.00°	27.31°	2960	2960 (100.0 %)	0 (0.0 %)	0
C23	21.10°	34.76°	3600	3600 (100.0 %)	0 (0.0 %)	0
C24	15.00°	36.50°	3133	3133 (100.0 %)	0 (0.0 %)	0
C25	44.84°	57.95°	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
G8	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G10	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G16	4.3 %	0.0 %	100.0 %	0.0 %	100.0 %
G18	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G21	1.3 %	0.0 %	100.0 %	0.0 %	100.0 %
G23	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G26	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G27	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
G31	0.5 %	0.0 %	0.0 %	0.0 %	100.0 %

SV GLONASS	Observations	Missing L1C	Missing L2C	Missing L2P
R7	0.7 %	0.0 %	0.0 %	0.0 %
R12	4.3 %	0.0 %	0.0 %	0.0 %
R13	3.6 %	0.0 %	0.1 %	0.1 %
R21	3.8 %	0.0 %	0.0 %	0.0 %
R22	4.3 %	0.0 %	0.0 %	0.0 %
R23	4.3 %	0.0 %	100.0 %	100.0 %

SV Galileo	Observations	Missing L1C	Missing L5Q	Missing L7Q	Missing L8Q
E1	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
E12	1.7 %	0.0 %	0.1 %	0.1 %	0.1 %
E21	3.0 %	0.0 %	0.0 %	0.0 %	0.0 %
E26	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
E31	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %
E33	4.3 %	0.0 %	0.0 %	0.0 %	0.0 %

SV BeiDou	Observations	Missing L2I	Missing L7I
C11	4.3 %	0.0 %	0.0 %
C12	4.3 %	0.0 %	0.0 %
C21	3.6 %	0.0 %	100.0 %
C23	4.3 %	0.0 %	100.0 %
C24	3.8 %	0.0 %	100.0 %
C25	4.3 %	0.0 %	100.0 %

Missing code observations by satellite > 15°:

SV GPS	Missing C1C	Missing C2S	Missing C2W	Missing C5Q
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 %
G21	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 %
G31	0.0 %	0.0 %	0.0 %	100.0 %

SV GLONASS	Missing C1C	Missing C2C	Missing C2P
R7	0.0 %	0.0 %	0.0 %
R12	0.0 %	0.0 %	0.0 %
R13	0.0 %	0.0 %	0.0 %
R21	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
E1	0.0 %	0.0 %	0.0 %	0.0 %
E12	0.0 %	0.1 %	0.1 %	0.1 %
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 %

SV BeiDou	Missing C2I	Missing C7I
C11	0.0 %	0.0 %
C12	0.0 %	0.0 %
C21	0.0 %	100.0 %
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	1.4 %
80 - 85	0	0	0	0	0	0	1.4 %
75 - 80	0	0	0	0	0	0	1.6 %
70 - 75	0	0	0	0	0	0	4.7 %
65 - 70	0	1	0	0	0	0	5.5 %
60 - 65	0	0	0	0	0	0	8.7 %
55 - 60	0	0	0	0	0	0	11.2 %
50 - 55	0	1	0	0	0	0	8.4 %
45 - 50	0	0	0	0	0	0	7.3 %
40 - 45	0	0	0	0	0	0	4.1 %
35 - 40	0	0	0	0	0	0	7.6 %
30 - 35	0	0	0	0	0	0	9.1 %
25 - 30	0	0	0	0	0	0	9.5 %
20 - 25	0	2	0	0	0	0	10.9 %
15 - 20	1	0	2	0	0	0	8.6 %
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
G8	43.6	46.7	49.8
G10	48.9	49.7	52.4
G16	51.1	51.1	-
G18	43.6	47.4	50.2
G21	40.2	38.9	-
G23	46.7	49.1	52.0
G26	51.8	53.4	56.8
G27	51.6	53.4	56.2
G31	40.4	40.5	-
Average GPS:	46.4	47.8	52.9

SV GLONASS	G1	G2
R7	41.1	41.5
R12	55.0	51.8
R13	38.0	41.9
R21	43.2	43.2
R22	42.8	38.1
R23	45.9	-
Average GLONASS:	44.3	43.3

SV Galileo	E1	E5a	E5b	E5a+b
E1	54.1	55.5	55.9	59.0
E12	39.8	43.6	43.6	47.0
E21	43.3	46.0	45.9	49.3
E26	52.5	53.8	54.2	57.3
E31	51.5	53.2	53.3	56.6
E33	54.2	55.5	55.9	59.0
Average Galileo:	49.2	51.3	51.5	54.7

SV BeiDou	B1I	B2I
C11	51.1	54.2
C12	47.5	52.8
C21	42.6	-
C23	44.9	-
C24	44.4	-
C25	51.7	-
Average BeiDou:	47.0	53.5

Code multipath by satellite > 15°:

SV GPS	Av Elev	MP (L1)	MP (L2)	MP (L5)
G8	27.5 °	0.08 m	0.07 m	0.14 m
G10	37.3 °	0.09 m	0.10 m	0.17 m
G16	79.6 °	0.04 m	0.03 m	-
G18	28.8 °	0.08 m	0.06 m	0.12 m
G21	18.4 °	0.12 m	0.12 m	-
G23	35.8 °	0.10 m	0.06 m	0.17 m
G26	59.3 °	0.06 m	0.06 m	0.09 m
G27	53.2 °	0.04 m	0.06 m	0.08 m
G31	16.4 °	0.07 m	0.21 m	-
Average GPS:	-	0.08 m	0.09 m	0.13 m

SV GLONASS	Av Elev	MP (G1)	MP (G2)
R7	16.6 °	0.21 m	0.18 m
R12	64.6 °	0.05 m	0.06 m
R13	32.4 °	0.21 m	0.17 m
R21	24.9 °	0.18 m	0.16 m
R22	56.4 °	0.07 m	0.07 m
R23	-	-	-
Average GLONASS:	-	0.14 m	0.13 m

SV Galileo	Av Elev	MP (E1)	MP (E5a)	MP (E5b)	MP (E5a+b)
E1	67.6 °	0.03 m	0.09 m	0.08 m	0.05 m
E12	21.7 °	0.09 m	0.09 m	0.08 m	0.07 m
E21	22.0 °	0.11 m	0.24 m	0.22 m	0.11 m
E26	55.5 °	0.03 m	0.07 m	0.07 m	0.01 m
E31	49.9 °	0.04 m	0.09 m	0.11 m	0.02 m
E33	65.5 °	0.03 m	0.06 m	0.06 m	0.03 m
Average Galileo:	-	0.06 m	0.11 m	0.10 m	0.05 m

SV BeiDou	Av Elev	MP (B1I)	MP (B2I)
C11	58.9 °	0.08 m	0.06 m
C12	48.2 °	0.08 m	0.09 m
C21	21.2 °	0.25 m	-
C23	27.9 °	0.22 m	-
C24	25.7 °	0.86 m	-
C25	51.4 °	0.41 m	-
Average BeiDou:	-	0.32 m	0.07 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	0.03 m	0.03 m	-	-	-	-	-
80 - 85	0.04 m	0.03 m	-	-	-	-	-
75 - 80	0.03 m	0.03 m	0.07 m	0.04 m	0.04 m	-	-
70 - 75	0.03 m	0.05 m	0.07 m	0.04 m	0.03 m	-	-
65 - 70	0.04 m	0.05 m	0.07 m	0.06 m	0.03 m	-	-
60 - 65	0.05 m	0.08 m	0.10 m	0.07 m	0.03 m	-	-
55 - 60	0.12 m	0.06 m	0.07 m	0.08 m	0.03 m	-	-
50 - 55	0.08 m	0.05 m	0.08 m	0.08 m	0.01 m	-	-
45 - 50	0.13 m	0.08 m	0.12 m	0.10 m	0.03 m	-	-
40 - 45	0.07 m	0.08 m	0.15 m	0.12 m	0.02 m	-	-
35 - 40	0.15 m	0.07 m	0.14 m	-	-	-	-
30 - 35	0.22 m	0.10 m	0.18 m	-	-	-	-
25 - 30	0.20 m	0.11 m	0.15 m	0.17 m	0.10 m	-	-
20 - 25	0.19 m	0.12 m	0.15 m	0.17 m	0.11 m	-	-
15 - 20	0.30 m	0.16 m	0.19 m	0.16 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 R8 starting 2021/08/17 07:56:57.00.
- Updated header information or comments after epoch 2021/08/17 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 1.6 seconds to process this file
-	This file was processed using version 7.5.2.8679