[IGSMAIL-7678] igs14_2022.atx: Update including reactivated BLOCK IIA satellite SVN36/PRN 4 and preliminary PCO for FOC 18-22

[Arturo Villiger]

Dear IGS colleagues!

The absolute IGS antenna correction file (igs14_wwww.atx) has been
updated. The new release is called 'igs14_2022.atx'. It contains the
following changes:


1) According to NANU 2018042, BLOCK IIA satellite SVN36 will resume
transmitting L-band utilizing PRN04 on approximately 10  October 2018.
Therefore, the following satellite has been added to igs14.atx (The
actual start date will be adapted with the next release.):

G04 (G036)

NANU message 2018042:

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2018042 NANU TYPE: GENERAL
*** GENERAL MESSAGE TO ALL GPS USERS ***
ON APPROXIMATELY 10 OCT 2018 SVN36 WILL RESUME TRANSMITTING L-BAND
UTILIZING PRN04.
AT L-BAND ACTIVATION, SVN36/PRN04 WILL BE UNUSABLE UNTIL FURTHER NOTICE.
ADDITIONALLY, NO BROADCAST ALMANACS WILL INCLUDE SVN36/PRN04 UNTIL FURTHER
NOTICE.
*** GENERAL MESSAGE TO ALL GPS USERS ***
https://www.navcen.uscg.gov/?Do=gpsShowNanu&num=2018042

2) According to CODE, G049 stopped signal transmission on 28 September
2018. Therefore, a decommission date for the following satellite has
been added:

G04 (G049): 28 September 2018 (23:59:59.9999999)

3) According to the NAGU 2018017 4 new Galileo FOC satellites have been 
launched on 25. Juli 2018
     (FOC-19 to FOC-22, 2018-060A to 2018-060D):
   E36 (E219)
   E13 (E220)
   E15 (E221)
   E33 (E222)

The following PRELIMINARY phase center offset (PCO) values were assigned:
(Preliminary PCO values (no PV) using mean values of FOC-3 to FOC-14 ):

Frq     PCO_X    PCO_Y    PCO_Z
----     ---------    --------     ---------
E05    120.00    -10.00    620.00
E07    120.00    -10.00    660.00
E06    120.00    -10.00    680.00
E01    120.00    -10.00    720.00
E08    120.00    -10.00    640.00

NAGU message 2018017:

NOTICE ADVISORY TO GALILEO USERS (NAGU) 2018017
DATE GENERATED (UTC): 2018-07-26 10:40

NAGU TYPE: GENERAL
NAGU NUMBER: 2018017
NAGU SUBJECT: LAUNCH OF GSAT0219, GSAT0220, GSAT0221 AND GSAT0222
NAGU REFERENCED TO: N/A
START DATE EVENT (UTC): 2018-07-25 11:25
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: GSAT0219, GSAT0220, GSAT0221, GSAT0222

EVENT DESCRIPTION: GALILEO SATELLITES GSAT0219 (SVID 36), GSAT0220 (SVID 13), GSAT0221 (SVID 15) AND GSAT0222 (SVID 33) WERE LAUNCHED ON 2018-07-25 AT 11:25 UTC. GSAT0219, GSAT0220, GSAT0221 AND GSAT0222 ARE PLANNED TO BE POSITIONED IN SLOTS B04, B01, B02 AND B07 OF THE CONSTELLATION. USERS WILL BE ADVISED OF AVAILABILITY OF SIGNALS FOLLOWING COMPLETION OF COMMISSIONING ACTIVITIES.

https://www.gsc-europa.eu/sites/default/files/NOTICE_ADVISORY_TO_GALILEO_USERS_NAGU_2018017.txt

4) One additional antenna type calibration have been added that was 
performed by Geo++ GmbH:
      - One robot calibration provided by Trimble Navigation Limited has 
been added:
        TRMSPS986       NONE


The updated antenna correction model is available at
ftp://ftp.igs.org/pub/station/general/igs14_2022.atx
or
ftp://ftp.igs.org/pub/station/general/igs14.atx

With best regards,
Arturo Villiger
on behalf of the IGS Antenna Working Group
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.igs.org/pipermail/igsmail/attachments/20181009/c8a49823/attachment.html>