Please make a donation to support Gunter's Space Page.
Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.

Yinghuo 1 (YH 1)

Yinghuo 1

In 2007 the chinese space agency signed an agreement to launch the 110 kg Yinghuo 1 orbiter piggyback on Fobos-Grunt. This orbiter was to separate from Fobos-Grunt after reaching mars orbit.

YH 1 was to enter a highly eccentric Mars orbit, which will well cover the areas of solar wind, bow shock, magnetosheath, magnetic pileup region, and tail and plasma sheet.

The scientific objectives of the mission are:

  • To study details of Martian space magnetosphere, ionosphere and the plasma distribution and their variations;
  • To study Martian ion escape mechanism, its implication for water loss.
  • To have moderate surveys of Martian surface topography, sandstorm and its influence on ionosphere;
  • To explore the Martian gravity field near equator by analyzing orbital data of YH-1.

After launch, Fobos-Grunt failed to ignite the propulsion module, went into safe-mode and remained in low earth orbit. The mission was lost as the Fobos-Grunt probe could not be commanded in several communication attempts to fire the propulsion module.

Nation: China
Type / Application: Mars orbiter
Operator:
Contractors:
Equipment:
Configuration:
Propulsion:
Power:
Lifetime: 1 year
Mass: 115 kg
Orbit: 800 km × 80000 km, 36 Mars orbit
Satellite COSPAR Date LS Launch Vehicle Remarks
Yinghuo 1 (YH 1) 2011-065A 08.11.2011 Ba LC-45/1 P Zenit-2FG [Fregat-SB] with Fobos-Grunt