Mobile version

Orbit

From its launch on February 2013 to July 2016, Saral/AltiKa has a repetitive orbit, on the same ground-track as Envisat (during its repetitive orbit, before 2010/10) with a 501-pass, 35-day exact repeat cycle on a sun-synchronous orbit (see below these paramters). It is complentary to Jason-2 ground tracks. Due to technical issues on the reaction wheels from March 2015, CNES and ISRO have decided to pursue this mission with a new phase named “SARAL-DP” for SARAL-Drifting Orbit". From July 2016, and during this drifting phase, the repetitive ground track are no more maintained and with the natural decay of the orbit, the ground track will drift.

The mean classical orbit elements duriong the repetitive phase (2013-2016) are given in the table below:

Pass locator

Referenced orbit Saral

Orbit parameters (repetitive phase 2013/02 - 2016/07)

Main characteristics
Semi-major axis7159.496 km
Eccentricity0.000165
Argument of perigee90.0°
Inclination (sun-synchronous)98.55°
Auxiliary data
Mean altitude800 km
Nodal period100.59 min
Repeat cycle35 days
Number of revolution per cycle501
Ground track separation at Equator75 km
Orbital velocity7.47 km/s
EnglishFrançaisEspañol
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!