Welcome back Galileo! (Galileo down) - July 2019 (Part 3)

This morning things are getting better and better for Galileo. We can finally say, welcome back Galileo!

The following table reports the status of the navigation message as received by our NGene software receiver in Torino, updated at 07:38:25 UTC of 18/07/2019: now all the flags in the navigation message are compatible with the use of the Galileo signal.

The Signal-In-Space Accuracy (SISA) index exhibits the value 107, which corresponds to a SISA value equal to 3.12 m. In the last update dating back to 17/07/2019, the SISA index was 255 which corresponds to “No Accuracy Prediction Available (NAPA)”. It is important to underline that we noticed the SISA changed its status to not-NAPA a few hours before the publication of the new NAGU: NAGU2019027 (published by GSC and reported on our website here). The new NAGU says that the Galileo service has been restored but users may still experience service instability.

Galileo PRN

t0c

t0e

Issue Of Data, IOD

GST of the last Word 5 analyzed

E1B Data Validity Status

E1B Signal Health Status

E1B Signal In-Space Accuracy Index

WN

TOW

7

366600

367200

100

1038

368065

0

0

107

13

372000

372000

108

1038

373105

0

0

107

15

372000

372000

108

1038

373105

0

0

107

18

368400

368400

102

1038

369955

0

3

107

19

371400

371400

107

1038

372235

0

0

107

21

370800

370800

106

1038

373105

0

0

107

27

372000

372000

108

1038

373105

0

0

107

30

372000

372000

108

1038

373105

0

0

107

36

366600

366600

99

1038

368425

0

0

107