Mobile version


18.07.2018 14:50 Age: 336 days


Category: Operational news

Jason-2 spacecraft entered into safe mode Wednesday, July 18th at 09:00 UTC, immediately interrupting its measurements.

The Jason-2 spacecraft entered safe mode today (Wednesday, July 18th) at 09:00UTC, immediately interrupting its measurements.


The satellite is currently in a safe and stable Sun-pointing configuration. The analysis of the telemetry shows that the safe hold mode is consecutive to a gyro #1 disjunction. Those anomalies are now known and, as decided during last JSG, the reconfiguration of the satellite on gyro#2 started immediately. Recovery operations will keep on during the following days, and Jason-2 mission is expected to restart nominally next week, hopefully on Wednesday, July 25th. The exact time of instruments restart will be communicated later.



As indicated earlier this week, Jason-2 maneuvers have been performed in order to place Jason-2 on an “interleaved LRO” orbit, so that more precise results are available for geodetic purpose. Fortunately, the reconfiguration to safe hold mode has been triggered after the last maneuver, which means Jason-2 should be ready to provide measurements on cycle 600 (new cycle numbering for the i-LRO measurements) right after restart.

Rss feedsContactSitemapPartnersFAQGlossaryLexiconMobile
You must enable cookies in your browser preferences to save the modifications
You are using an older version of Internet Explorer, please update to take full advantage of Aviso+ features

Customize the home page

View all widgets
Reduce display
Public profile
User profile

Select/Deselect widgets

Discover AVISO+

Customizable home, reading tools, products search guide, etc.. Discover step by step the features of the new site AVISO+.

Customizable homepage

The new home page is composed of blocks called "widgets".

Rearrange the blocks with a "Click & Drop".

Hide a widget with the cross at the top right. Reset or add a widget with the "wrench" icon. The "User" and "Public" profiles offer a predefined organization.

All the modifications are automatically saved as cookies on your machine so as to enable you to have your own specific AVISO+.

Reading tools

Ease your reading by choosing the page background colour (black/white) and/or by modifying the font size.

Browsing menu and breadcrum trail

To ease your browsing through AVISO+, you can use at any time the main banner items with the interactive submenus or use the browsing menu on the left side of the screen (it is open by default). For more readiness of the page contents, you can fold and unfold the browsing menu by clicking on the tab. At any time you can know where you are thanks to the browsing menu or the breadcrum at the top of the page.

Products search guide

The first submenu of the "Data" banner item leads you to a new search form enabling you to find quickier the product that suits your needs. The list of results is updated according to your selection criteria.

AVISO+ Multimedia

The first submenu of the "Multimedia" banner item leads you to AVISO+ collections of images and videos linked to altimetry and its applications. Have a nice visit!