This page provides an overview of the Satellites in the Galileo Constellation. Technical parameters of the indivdual satellites and related conventions applied within the MGEX project are summarized in the Spacecraft Characteristics section. Furthermore, a list of Events of interest for the Galileo data processing is given.

GPS
GLONASS
Galileo
BeiDou
QZSS
IRNSS
SBAS


Satellites


Common Name SVN Int. Sat. ID NORAD ID PRN Notes
GIOVE-A E001 2005-051A 28922 E01/E51 Decommissioned 2012/06/30
GIOVE-B E002 2008-020A 32781 E16/E52 Decommissioned 2012/07/23
IOV-1, Galileo PFM E101 2011-060A 37846 E11 Slot B05
IOV-2, Galileo FM2 E102 2011-060B 37847 E12 Slot B06
IOV-3, Galileo FM3 E103 2012-055A 38857 E19 Slot C04
IOV-4, Galileo FM4 E104 2012-055B 38858 E20 Slot C05
FOC-1 E201 2014-050A 40128 E18 Orbit injection failure (i=49.7° e=0.23)
FOC-2 E202 2014-050B 40129 E14 Orbit injection failure (i=49.7° e=0.23)
FOC-3 E203 2015-017A 40544 E26 Slot B08
FOC-4 E204 2015-017B 40545 E22 Slot B03
FOC-5 E205 2015-045A 40889 E24 Slot A08
FOC-6 E206 2015-045B 40890 E30 Slot A05

Note: Due to the late announcement of official space vehicle identifiers for the GIOVE-A/B satellites, different PRN assignments have been adopted by receiver manufacturers and data providers for these satellites. While PRN numbers E01/E16 have been used within the broadcast navigation messages of GIOVE-A/B other possible identifications include

  • PRN E01/E02 (Javad receivers)
  • PRN E32/E31 (Septentrio PolaRx/AsteRx receivers)
  • PRN E51/E52 (Septentrio GeNeRx1 receiver, NovAtel EuroPak15a, Trimble NetR9 receiver, RTCM3-MSM draft)
  • PRN E01/E16 (Leica GRX1200+GNSS/GR10/GR25 receivers)

So far, no unique PRN numbering scheme has been adopted within the IGS and RINEX files collected within the MGEX project may be based on either of the above conventions. Users of MGEX data prior to the deactivation of GIOVE-A/B in the summer of 2012 are advised to carefully check the employed data and adjust the PRN numbers to ensure consistency in their processing where needed. In particular, attention should be paid to the fact, that different PRN conventions might be used concurrently in data products resulting from the same receiver but using different RINEX generation tools.

Spacecraft Characteristics

A comprehensive collection of technical information with associated references for the GIOVE-A and GIOVE-B spacecraft can be obtained at ESA's eoPortal as well as the ESA report on GIOVE Experimentation Results (ESA SP-1320). Information on the IOV and FOC satellites is presently limited to the ESA Galileo IOV Fact Sheet and the OHB Galileo Space Segment Brochure.

Parameter GIOVE-A GIOVE-B IOV FOC
Launch mass 602 kg 530 kg 700 kg 733 kg
Dry mass 550 kg 502 kg n/a n/a
Body size 1.3 m x 1.8 m x 1.65 m (stowed envelope) 0.95 m x 0.95 m x 2.4 m 2.74 m x 1.58 m x 1.59 m 2.5 m x 1.2 m x 1.1 m
Solar array size 2 x 2 x 1.74 m x 0.98 m 2 x 4 x 1.5 m x 0.8 m 2 x 2 x ~3 m x ~1 m 2 x 2 x 2.5 m x 1.1 m
Span width ~10 m ~10 m 14.5 m 14.7 m
Cross section 9 m2 12 m2 n/a n/a
SRP acceleration 99 nm/s2 151 nm/s2 113 nm/s2 107 nm/s2 (FOC-1/2)
114 nm/s2 (others)

The GIOVE-A/B and Galileo-IOV/FOC spacecraft are equipped with broadband GNSS antennas for the E1, E5ab and E6 frequency bands and with a laser retroreflector array (LRA) for satellite laser ranging.



Fig. 1 Spacecraft reference system and sensor location for the GIOVE-A (top left), GIOVE-B (top right), Galileo IOV (bottom left), and Galileo FOC (bottom right) satellites. Blue arrows and labels indicate the reference system adopted by the IGS, while the manufacturer-specific systems are illustrated in red. During nominal yaw-steering, the Sun is always confined to the +xIGS-hemisphere. Reproduced from DOI 10.1016/j.asr.2015.06.019 with permission of Elsevier; satellite images courtesy ESA.

Phase center coordinates of the GNSS antenna and the LRA of GIOVE-A/B and the Galileo-IOV/FOC satellites as recommended for use within the MGEX project are provided in the following table. A machine-readable version of the phase center offset information for each satellite is provided as part of the IGS08 ANTEX product. All values refer to the IGS-specific spacecraft coordinate system illustrated in blue in Fig. 1. The spacecraft coordinate system is aligned with the main body axes and originates near the anti-Earth panel. By convention of the IGS
  • the +zIGS-axis is oriented along the boresight direction of the antenna,
  • the yIGS-axis is parallel to the rotation axis of the solar panels and the positive yIGS-direction is defined through the adopted +xIGS-direction,
  • the +xIGS-axis completes a right handed system and is chosen such that the Sun is always located in the +xIGS hemisphere during nominal yaw-steering.
The detailed orientation of the +xIGS and +yIGS-axes for individual satellites is defined as shown in the drawings.

GIOVE-A
  Coordinates (w.r.t. origin) Coordinates (w.r.t. CoM) Reference
xIGS yIGS zIGS xIGS yIGS zIGS
GNSS Antenna E1 0.0 mm 0.0 mm +1658.0 mm -4.0 mm +1.0 mm +862.0 mm [1]
E5a/b/ab 0.0 mm 0.0 mm +1690.0 mm -4.0 mm +1.0 mm +894.0 mm [1]
E6 0.0 mm 0.0 mm +1665.0 mm -4.0 mm +1.0 mm +869.0 mm [1]
LRA   +832.0 mm +654.0 mm +1476.0 mm +828.0 mm +655.0 mm +680.0 mm [1]
CoM (Mar 2006)   +4.0 mm -1.0 mm +796.0 mm       [1]

GIOVE-B
  Coordinates (w.r.t. origin) Coordinates (w.r.t. CoM) Reference
xIGS yIGS zIGS xIGS yIGS zIGS
GNSS Antenna E1 0.0 mm 0.0 mm +2289.2 mm -3.2 mm +3.4 mm +1351.7 mm [1]
E5a/b/ab 0.0 mm 0.0 mm +2288.7 mm -3.2 mm +3.4 mm +1351.2 mm [1]
E6 0.0 mm 0.0 mm +2287.6 mm -3.2 mm +3.4 mm +1350.1 mm [1]
LRA   +807.5 mm -297.5 mm +2267.6 mm +804.3 mm -294.1 mm +1330.1 mm [1]
CoM (BoL)   +3.2 mm -3.4 mm +937.5 mm       [1]

IOV
  Coordinates (w.r.t. origin) Coordinates (w.r.t. CoM) Reference
xIGS yIGS zIGS xIGS yIGS zIGS
GNSS Antenna all E1       -200.0 mm 0.0 mm +600.0 mm
E5a/b/ab       -200.0 mm 0.0 mm +600.0 mm
E6       -200.0 mm 0.0 mm +600.0 mm
LRA IOV-1 -2298.0 mm -595.0 mm +1174.0 mm -1092.2 mm +34.0 mm +620.6 mm [2],[3]
IOV-2 -2298.0 mm -595.0 mm +1174.0 mm -1092.7 mm +33.8 mm +622.6 mm [2],[3]
IOV-3 -2298.0 mm -595.0 mm +1174.0 mm -1092.7 mm +34.6 mm +621.2 mm [2],[3]
IOV-4 -2298.0 mm -595.0 mm +1174.0 mm -1092.7 mm +34.0 mm +622.5 mm [2],[3]
CoM (Nov. 2014) IOV-1 -1205.8 mm -629.0 mm +553.4 mm       [3]
IOV-2 -1205.3 mm -628.8 mm +551.4 mm       [3]
IOV-3 -1205.3 mm -629.6 mm +552.8 mm       [3]
IOV-4 -1205.3 mm -629.0 mm +551.5 mm       [3]

FOC
  Coordinates (w.r.t. origin) Coordinates (w.r.t. CoM) Reference
xIGS yIGS zIGS xIGS yIGS zIGS
GNSS Antenna FOC-1,2 E1       +150.0 mm 0.0 mm +1000.0 mm
E5a/b/ab       +150.0 mm 0.0 mm +1000.0 mm
E6       +150.0 mm 0.0 mm +1000.0 mm
others E1       +150.0 mm 0.0 mm +1000.0 mm
E5a/b/ab       +150.0 mm 0.0 mm +1000.0 mm
E6       +150.0 mm 0.0 mm +1000.0 mm
LRA FOC-1 +703.0 mm +27.5 mm +1120.5 mm +1034.7 mm +14.0 mm +558.6 mm [2],[3]
FOC-2 +703.0 mm +27.5 mm +1120.5 mm +1017.0 mm +14.9 mm +558.1 mm [2],[3]
FOC-3 +703.0 mm +27.5 mm +1120.5 mm +962.1 mm +18.3 mm +559.3 mm [2],[3]
FOC-4 +703.0 mm +27.5 mm +1120.5 mm +963.6 mm +18.2 mm +559.3 mm [2],[3]
CoM (May 2015) FOC-1 -331.7 mm +13.5 mm +561.9 mm       [3]
FOC-2 -314.0 mm +12.6 mm +562.3 mm       [3]
FOC-3 -259.1 mm +9.2 mm +561.1 mm       [3]
FOC-4 -260.6 mm +9.3 mm +561.1 mm       [3]

GNSS antenna offsets for GIOVE-A/B are based on calibrated phase centers for each frequency band and center-of-mass information for the begin of life (BoL) as provided by ESA. Due to a lack of publicly available measured antenna phase center offsets conventional values of (x,y,z)IGS=(-0.2 m, 0.0 m, +0.6 m) and (x,y,z)IGS=(+0.15 m, 0.0 m, +1.0 m) are recommended for orbit and clock determination of the Galileo-IOV and -FOC satellites, respectively, until further notice. The values provide a first estimate of the actual phase center relative to the center of mass based on the images and models or coarse phase center estimates.

For the modelling of satellite laser ranging measurements nominal coordinates of the effective LRA reflection point have been specified by ESA as part of the ILRS mission support request.

Similar to the GPS satellites the attitude of the GIOVE and Galileo satellites is actively controlled to orient the +zIGS axis towards the Earth. At the same time the spacecraft is continuously rotated about this axis to maintain the yIGS-axis perpendicular to the plane made up by the Sun, Earth, and satellite. The +xIGS-panel is always sunlit, while the -xIGS-panel is oriented towards "deep space". Details of the attitude control during noon- and midnight turns in periods when the Sun is close to the orbital plane are described in [4]-[6].

References

[1] R. Zandbergen, D. Navarro, "Specification of Galileo and GIOVE Space Segment properties relevant for Satellite Laser Ranging", ESA-EUING-TN/10206, Issue 3.2, 08/05/2008, Galileo Project Office, ESA, Noordwijk;
[2] Galileo-101 and -102 ILRS SLR Mission Support Request Form (2011/06)
[3] ILRS Galileo IOV Center of Mass Information
[4] Johnston A.G.Y., Holt A.P., Jackson C.D., "GIOVE-A AOCS : An Experience from Verification to Flight", 7th Int. ESA Conference on Guidance, Navigation & Control Systems, 2-5 June 2008, Tralee, County Kerry, Ireland (2008).
[5] Zentgraf P., Fischer H.-D., Kaffer L., Konrad A., Lehrl E., Müller C., Oesterlin W., Wiegand M.; "AOC Design and Test for GSTB-V2B", 6th Int. ESA Conference on Guidance, Navigation and Control Systems, 17-20 Oct. 2005 in Loutraki, Greece (2005).
[6] Konrad A., Fischer H.-D., Müller C., Oesterlin W.; "Attitude & orbit control system for Galileo IOV"; 17th IFAC Symposium on Automatic Control in Aerospace (2007). DOI 10.3182/20070625-5-FR-2916.00006


Events


Date UTC Satellite PRN Description Notes
2011/11/25   GIOVE-B E16/E52 Clock switch (PHM to Rb) CONGO monitoring
2011/12/10 06:02 IOV-1 E11 Start of E1 transmission, initial clock offset 850ms CANSPACE, CONGO monitoring
2011/12/14 09:45 IOV-1 E11 Start of E5 transmission CONGO monitoring
2011/12/28   IOV-1 E11 Initial orbit/clock products from TUM; clock offset +0.5 ms, drift +50.3 us/d (Rb) TUM/CONGO
2012/01/09   IOV-2 E12 Start of E1 transmission CONGO monitoring
2012/01/11   IOV-1 E11 Clock switch (Rb to PHM); clock offset +34.5 ms, drift +7.12 us/d (PHM) TUM/CONGO
2012/01/18   IOV-2 E12 Start of E5 transmission CONGO
2012/01/18   IOV-1 E11 Start of transmission outage (14d) CONGO monitoring
2012/01/18   IOV-2 E12 Initial orbit/clock products from TUM; clock offset +89.2 ms, drift +38.2 us/d (Rb) TUM/CONGO
2012/01/31   IOV-2 E12 Clock switch (Rb to PHM); clock offset -72.1ms, drift +7.23 us/d (PHM) TUM/CONGO; exact date unclear due to multiple events and/or bad data
2012/02/02   IOV-1 E11 End of transmission outage; Clock offset -1.9 ms, drift +7.19 us/d (PHM) TUM/CONGO
2012/02/05   IOV-1 E11 Clock adjustment; clock offset ~0.0 ms, drift +7.19 us/d (PHM) TUM/CONGO
2012/02/06   IOV-2 E12 Start of transmission outage (4d) CONGO monitoring
2012/02/07   GIOVE-B E16/E52 Begin of transmission outage (20d) CONGO monitoring
2012/02/10   IOV-2 E12 End of transmission outage; possible clock switch PHM to PHM; clock offset +48.6 ms, drift +7.41 us/d (PHM) TUM/CONGO
2012/02/13   IOV-2 E12 Clock adjustment; clock offset ~0.0 ms, drift +7.41 us/d (PHM) TUM/CONGO
2012/02/16   IOV-1 E11 Clock switch (PHM to Rb); clock offset -36.0 ms, drift +33.3 us/d (Rb) TUM/CONGO
2012/02/18   IOV-2 E12 Clock jump; switch (PHM to Rb)?
2012/02/18   IOV-2 E12 Start of transmission outage (10d)
2012/02/21   IOV-1 E11 Clock adjustment; clock offset ~0.0 ms, drift +33.3 us/d (Rb) TUM/CONGO
2012/02/27   GIOVE-B E16/E52 End of transmission outage CONGO monitoring
2012/03/01   IOV-2 E12 End of transmission outage; clock offset -35.4 ms, drift +41.9 us/d (Rb) TUM/CONGO
2012/05/31   IOV-2 E12 Clock adjustment; clock offset +50.0 ms, drift +43.1 us/d (Rb) TUM/CONGO
2012/06/06   IOV-1 E11 clock adjustment; clock offset ~0.0 ms, drift +32.8 us/d (Rb) TUM/CONGO
2012/06/30 21:00 GIOVE-A E01/E51 End of mission ESA
2012/06/27   IOV-2 E12 Clock adjustment; clock offset -0.8 ms, drift +41.9 us/d (Rb) TUM/CONGO
2012/06/27   IOV-1 E11 Start of CBOC transmission ESA; M. Falcone 12/12/05
2012/06/29   IOV-2 E12 Start of CBOC transmission ESA; M. Falcone 12/12/05
2012/07/23 11:14 GIOVE-B E16/E52 End of mission ESA
2012/07/16   IOV-1 E11 Clock switch (Rb to PHM); clock offset -28.8 ms, drift +7.15 us/d (PHM) TUM/CONGO
2012/07/23   IOV-2 E12 Clock switch (Rb to PHM); clock offset ~0.0 ms, drift +7.36 us/d (PHM) TUM/CONGO TUM/CONGO
2012/07/26   IOV-1 E11 Clock adjustment; clock offset ~0.0 ms, drift +7.19 us/d (PHM) TUM/CONGO
2012/11/01   IOV-1 E11 Clock switch (PHM to Rb); clock offset 28 us, drift 33.2 us/d (previously 1234 us and +7.14 us/d) TUM/CONGO
2012/12/01 13:55 IOV-3 E19 Start of E1 signal transmission TUM CONGO/MGEX monitoring
2012/12/12 17:15 IOV-3 E20 Start of E1 signal transmission TUM CONGO/MGEX monitoring
2013/01/07 noon IOV-4 E20 Short outage; switch to alternate PHM (?), clock not synchronized after outage TUM CONGO/MGEX monitoring
2013/01/08 noon IOV-3 E19 Transmission stopped TUM CONGO/MGEX monitoring
2013/01/10 IOV-3 E19 E1 transmission resumed; switch to alternate PHM (?), clock not synchronized after outage TUM CONGO/MGEX monitoring
2013/01/11 evening IOV-3 E19 E5 transmission resumed TUM CONGO/MGEX monitoring
2013/01/11 afternoon IOV-2 E12 Clock switch to Rubidium TUM CONGO/MGEX monitoring
2013/01/14 noon IOV-3 E19 Short signal outage TUM CONGO/MGEX monitoring
2013/01/17 ~19:30 IOV-1/2 E11, E12 Start transmission of navigation message TUM CONGO/MGEX monitoring
2013/01/18 evening IOV-1 E11 Transmission outage (5d) TUM CONGO/MGEX monitoring
2013/01/18 evening IOV-2 E12 Transmission outage (4d) TUM CONGO/MGEX monitoring
2013/01/21 IOV-4 E20 Transmission outage (4d) TUM CONGO/MGEX monitoring
2013/01/22 early morning IOV-2 E12 Transmission resumed TUM CONGO/MGEX monitoring
2013/01/23 noon IOV-1 E11 Transmission resumed TUM CONGO/MGEX monitoring
2013/01/25 evening IOV-4 E20 Transmission resumed TUM CONGO/MGEX monitoring
2013/01/27 IOV-4 E20 Transmission outage (early morning until noon) TUM CONGO/MGEX monitoring
2013/02/04 IOV-3 E19 Very short transmission outage TUM CONGO/MGEX monitoring
2013/02/06 morning IOV-3 E19 Short transmission outage TUM CONGO/MGEX monitoring
2013/02/07 afternoon IOV-3 E19 Short transmission outage TUM CONGO/MGEX monitoring
2013/02/07 Evening IOV-3 E19 Start of transmission outage (21 days) TUM CONGO/MGEX monitoring
2013/02/15 Evening IOV-4 E20 Start of transmission outage (4 days) TUM CONGO/MGEX monitoring
2013/02/19 Before midnight IOV-4 E20 End of transmission outage TUM CONGO/MGEX monitoring
2013/02/20 Around noon IOV-4 E20 Short transmission outage TUM CONGO/MGEX monitoring
2013/02/21 Around noon IOV-4 E20 Short transmission outage TUM CONGO/MGEX monitoring
2013/02/21 Afternoon IOV-4 E20 Start of transmission outage (13 days) TUM CONGO/MGEX monitoring
2013/02/28 Evening IOV-3 E19 Resumed transmission (short interruption after restart) TUM CONGO/MGEX monitoring
2013/03/05 Around noon IOV-4 E20 Short transmission TUM CONGO/MGEX monitoring
2013/03/06 Around noon IOV-4 E20 End of transmission outage TUM CONGO/MGEX monitoring
2013/03/13 Morning IOV-4 E20 Start of transmission outage (1 day) TUM CONGO/MGEX monitoring
2013/03/14 Evening IOV-4 E20 End of transmission outage TUM CONGO/MGEX monitoring
2013/04/09 Around noon IOV-4 E20 Short transmission outage TUM CONGO/MGEX monitoring
2013/06/14 16:48 IOV-4 E20 Start of two weeks unavailability NAGU 2013001
2013/07/01 10:25 IOV-4 E20 End of two-week unavailability NAGU 2013002
2013/08/19 06:00 IOV-1,2,3,4 E11,E12,
E19,E20
Start of 4-day test campaign with dummy navigation messages NAGU 2013003-006
2013/08/19 IOV-1 E11 Switch to RAFS TUM MGEX monitoring
2013/08/20 IOV-2,-3 E12,E19 Switch to RAFS TUM MGEX monitoring
2013/08/21 IOV-4 E20 Switch to RAFS TUM MGEX monitoring
2013/08/23 14:08 IOV-1 E11 End of 4-day test campaign with dummy navigation messages; payload on RAFS clock NAGU 2013007
2013/08/23 14:11 IOV-4 E20 End of 4-day test campaign with dummy navigation messages; payload on RAFS clock NAGU 2013010
2013/08/23 14:24 IOV-2 E12 End of 4-day test campaign with dummy navigation messages; payload on RAFS clock NAGU 2013008
2013/08/23 15:20 IOV-3 E19 End of 4-day test campaign with dummy navigation messages; payload on RAFS clock NAGU 2013009
2013/09/12 06:53 IOV-2 E12 Start of one month unavailability NAGU 2013011,-013,-018
2013/09/12 13:05 IOV-1 E11 Start of one month unavailability NAGU 2013011,-012,-017
2013/09/13 IOV-1 E11 Start of 3 weeks signal outage MGEX monitoring
2013/09/13 10:19 IOV-4 E20 Start of one month unavailability NAGU 2013011,-014,-020,-021
2013/09/13 11:49 IOV-3 E19 Start of one month unavailability NAGU 2013011,-014,-020
2013/09/14 IOV-4 E20 Start of 3 weeks signal outage MGEX monitoring
2013/09/26 IOV-2 E12 Start of 1 week signal outage MGEX monitoring
2013/10/04 IOV-2 E12 End of 1 week signal outage MGEX monitoring
2013/10/07 IOV-1,-4 E11,E20 End of 3 weeks signal outage MGEX monitoring
2013/10/14 08:30 IOV-2 E12 End of one month unavailability, payload on PHM NAGU 2013019
2013/10/14 15:20 IOV-3 E20 End of one month unavailability, payload on PHM NAGU 2013020
2013/10/15 08:12 IOV-1 E11 End of one month unavailability, payload on PHM NAGU 2013017
2013/10/17 13:04 IOV-4 E20 End of one month unavailability, payload on RAFS NAGU 2013021
2014/01/15 07:14-15:02 IOV-3 E20 Temporary unavailability NAGU 2014001,-002
2014/01/17 07:00-08:29 IOV-3 E20 Temporary unavailability NAGU 2014001,-002
2014/01/22 08:49-17:42 IOV-3 E20 Temporary unavailability NAGU 2014001,-002
2014/02/09 04:37 IOV-1 E11 Start of signal outage (9 days) NAGU 2014003
2014/02/18 IOV-1 E11 End of signal outage MGEX monitoring
2014/02/23 07:47 IOV-3 E19 Start of signal outage NAGU 2014004
2014/05/27 Around noon IOV-4 E20 Start of transmission outage MGEX monitoring, NAGU 2014014
2014/06/01 Evening IOV-1 E11 Restart of transmission, no navigation data until 2014/06/10 around noon
2014/06/15 Around noon IOV-2 E12 Start of transmission outage, outage start according to NAGU 2014017 on 2014/06/12
2014/06/28 Afternoon IOV-2 E12 End of transmission outage, outage end according to NAGU 2014020 on 2014/07/02
2014/08/06 23:13:00 IOV-4 E20 Restart of E1 transmission, no E5 signal and no navigation data
2014/08/08 18:37:00 IOV-4 E20 End of E1 transmission CONGO/MGEX monitoring
2014/09/24 IOV-4 E20 Restart of E1 transmission, no E5 signal and no navigation data CONGO/MGEX monitoring
2014/10/10 IOV-1/2/3 E11, E12, E19 Start of navigation data outage CONGO/MGEX monitoring, NAGU 2014035/36/37
2014/10/10 17:10:00 IOV-1/2/3 E11, E12, E19 End of navigation data outage CONGO/MGEX monitoring
2014/05/20 Late evening IOV-1 E11 Start of transmission outage CONGO/MGEX monitoring, NAGU 2014007
2014/06/15 Around noon IOV-2 E12 Start of transmission outage CONGO/MGEX monitoring, NAGU 2014017
2014/06/28 Afternoon IOV-2 E12 Restart of transmission CONGO/MGEX monitoring
2015/01/08 Afternoon IOV-2 E12 Start of transmission outage CONGO/MGEX monitoring
2015/01/09 Around noon FOC-1 E18 Restart of transmission CONGO/MGEX monitoring
2015/01/13 IOV-2 E12 Signal transmission from shortly after midnight until late evening CONGO/MGEX monitoring
2015/01/14 Morning IOV-1 E11 Start of transmission outage CONGO/MGEX monitoring
2015/01/15 Afternoon IOV-1 E11 Restart of tranmsission CONGO/MGEX monitoring
2015/01/15 Around noon IOV-2 E12 Restart of tranmsission, Rb clock CONGO/MGEX monitoring
2015/01/26 IOV-* E1* Start of navigation message outage Inside GNSS
2015/02/01 Morning IOV-3 E19 Short transmission outage, switch to Rb clock CONGO/MGEX monitoring
2015/02/10 Morning IOV-1 E11 Short transmission outage CONGO/MGEX monitoring
2015/02/11 Morning IOV-2 E12 Half-day transmission outage CONGO/MGEX monitoring
2015/02/12 Afternoon IOV-3 E19 Short transmission outage CONGO/MGEX monitoring
2015/03/06 14:40 IOV-1 E11 Restart of navigation message transmission CONGO/MGEX monitoring
2015/03/06 14:30 IOV-2 E12 Restart of navigation message transmission CONGO/MGEX monitoring
2015/03/06 14:40 IOV-3 E19 Restart of navigation message transmission CONGO/MGEX monitoring
2015/03/10+ 11 IOV-* E1* Navigation data gaps CONGO/MGEX monitoring
2015/03/17 19:19 FOC-2 E14 Start of signal transmission CONGO/MGEX monitoring
2015/05/21 11:32 FOC-4 E22 Start of signal transmission for a few hours CONGO/MGEX monitoring
2015/05/22 Evening FOC-4 E22 Restart of signal transmission followed by short outage CONGO/MGEX monitoring
2015/05/24 15:13 FOC-3 E26 Start of signal transmission for a few hours CONGO/MGEX monitoring
2015/05/25 Evening FOC-3 E26 Restart of signal transmission CONGO/MGEX monitoring
2015/05/26 Noon FOC-3 E26 Short transmission outage, clock adjustment CONGO/MGEX monitoring
2015/05/28 Noon FOC-4 E22 Several hours transmission outage CONGO/MGEX monitoring
2015/05/28 Evening FOC-3 E26 Start of transmission outage CONGO/MGEX monitoring
2015/05/29 Morning FOC-3 E26 End of transmission outage CONGO/MGEX monitoring
2015/05/29 Evening FOC-4 E22 Several hours transmission outage CONGO/MGEX monitoring
2015/05/30 Noon FOC-3 E26 Several hours transmission outage CONGO/MGEX monitoring
2015/05/31 Morning FOC-4 E22 Start of transmission outage CONGO/MGEX monitoring
2015/05/31 Evening FOC-3 E26 Several hours transmission outage CONGO/MGEX monitoring
2015/06/02 Evening FOC-3 E26 Start of transmission outage CONGO/MGEX monitoring
2015/06/04 FOC-4 E22 End of transmission outage CONGO/MGEX monitoring
2015/06/06 FOC-3 E26 End of transmission outage CONGO/MGEX monitoring
2015/06/07 Noon FOC-4 E22 Short transmission outage CONGO/MGEX monitoring
2015/06/08 Afternoon FOC-4 E22 Several hours transmission outage CONGO/MGEX monitoring
2015/06/16 Afternoon FOC-3 E26 Several hours transmission outage CONGO/MGEX monitoring
2015/06/17 Afternoon FOC-4 E22 Start of transmission outage CONGO/MGEX monitoring
2015/07/12 Noon FOC-2 E14 Start of transmission outage CONGO/MGEX monitoring
2015/07/23 Evening FOC-3 E26 Start of transmission outage CONGO/MGEX monitoring
2015/09/08 Evening FOC-2 E14 Restart of signal transmission CONGO/MGEX monitoring
2015/09/10 Evening FOC-4 E22 Restart of signal transmission CONGO/MGEX monitoring
2015/09/20 Evening FOC-1 E18 Start of transmission outage CONGO/MGEX monitoring
2015/10/02 Evening FOC-3 E26 Restart of signal transmission CONGO/MGEX monitoring
2015/10/05 12:20 FOC-3 E26 Start of navigation message transmission CONGO/MGEX monitoring
2015/10/06 Morning FOC-1 E18 Restart of signal transmission CONGO/MGEX monitoring
2015/10/07 Noon FOC-3 E19 Short transmission outage CONGO/MGEX monitoring,
NAGU 2015012-2015013
2015/10/10 Morning FOC-5 E24 Start of signal transmission CONGO/MGEX monitoring
2015/10/10 Evening FOC-6 E30 Start of signal transmission CONGO/MGEX monitoring
2015/10/11 Morning FOC-6 E30 End of signal transmission CONGO/MGEX monitoring
2015/10/12 Noon FOC-5 E24 End of signal transmission CONGO/MGEX monitoring
2015/10/12 Morning FOC-6 E30 Signal transmission from morning until afternoon CONGO/MGEX monitoring


Notes:
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