[4][5] It was launched on 8 November 2011, at 20:16 UTC, from the Baikonur Cosmodrome, but subsequent rocket burns intended to set the craft on a course for Mars failed, leaving it stranded in low Earth orbit.According to lead scientist Alexander Zakharov, the entire spacecraft and most of the instruments were new, though the designs drew upon the nation's legacy of three successful Luna missions, which in the 1970s retrieved a few hundred grams of Moon rocks.Space center researchers expected to use photographs and data to study the magnetic field of Mars and the interaction between ionospheres, escape particles and solar wind.The experiment would have tested one aspect of transpermia, the hypothesis that life could survive space travel, if protected inside rocks blasted by impact off one planet to land on another.While the Moscow-based company Tehkhom provided the computer hardware on time, the internal NPO Lavochkin team responsible for integration and software development fell behind schedule.During the extra development time resulting from the delay, a Polish-built drill was added to the Phobos lander as a back-up soil extraction device.According to original plans, Mars orbit arrival had been expected during September 2012 and the return vehicle was scheduled to reach Earth in August 2014.[citation needed] Moreover, Roscosmos's top officials believed Fobos-Grunt to be functional, stably oriented and charging batteries through its solar panels.[53] The European Space Agency decided to end the efforts to contact the probe on 2 December 2011, with one analyst saying that Fobos-Grunt appeared "dead in the water".[7] Meanwhile, the head of Roscosmos said the probability of parts reaching the Earth surface was "highly unlikely" and that the spacecraft, including the LIFE module and the Yinghuo-1 orbiter, would be destroyed during re-entry.In contrast, Russian civilian ballistic experts said that the fragments had fallen over a broader patch of Earth's surface, and that the midpoint of the crash zone was located in the Goiás state of Brazil.On 17 January 2012, an unidentified Russian official speculated that a U.S. radar stationed on the Marshall Islands may have inadvertently disabled the probe, but cited no evidence.[61] Popovkin suggested the microchips may have been counterfeit,[62][63] then he announced on 1 February 2012 that a burst of cosmic radiation may have caused computers to reboot and go into a standby mode.[66] On 6 February 2012, the commission investigating the mishap concluded that Fobos-Grunt mission failed because of "a programming error which led to a simultaneous reboot of two working channels of an onboard computer".[78][79] Popovkin declared that they would soon attempt to repeat the Fobos-Grunt mission, if an agreement was not reached for Russian co-operation in the European Space Agency's ExoMars program.[citation needed] However, since an agreement was reached for the inclusion of Russia as a full project partner,[80] some instruments originally developed for Fobos-Grunt were flown in the ExoMars Trace Gas Orbiter.[82][83] In August 2015, the ESA-Roscosmos working group on post-ExoMars cooperation, completed a joint study for a possible future Phobos sample return mission, preliminary discussions were held,[84][85] and in May 2015 the Russian Academy of Sciences submitted a budget proposal.It was imperative to prevent the introduction to Mars of contaminants from Earth; according to Fobos-Grunt Chief Designer Maksim Martynov, the probability of the probe accidentally reaching the surface of Mars was much lower than the maximum specified for Category III missions, the type assigned to Fobos-Grunt and defined in COSPAR's planetary protection policy (in accordance with Article IX of the Outer Space Treaty).An emergency mode existed for the case of communications breakdown, which enabled the lander to automatically launch the return rocket to deliver the samples to Earth.[100] The samples would be loaded into a capsule which would then be moved inside a special pipeline into the descent module by inflating an elastic bag within the pipe with gas.In order to avoid harming the experiments remaining at the lander, the return stage would have ignited its engine once the vehicle had been vaulted to a safe height by springs.
Mockup of the spacecraft's main propulsion unit
Overview of planned trajectories.
1. Baikonour launch
2. First Burn
3. Spent fuel tank ejected
4. Second Burn (Departure to Martian system)
Modules
-- A: lander, B: return module, C: reentry vehicle (not shown).
Major components
-- 1: solar panels, 2: reaction wheels, 3: landing gear, 4: robotic sample arm (second arm not shown), 6: sample transfer container, 7: attitude control thrusters, 8 and 10: fuel and helium tanks, 9: return module solar panels.
Scientific instruments
(some instruments are not visible from this angle or are not present on the model) -- a: Termofob thermodetector, b: GRAS-F seismogravimeter; c: METEOR-F cosmic dust detector, d: GAP (Gas Analytic Package) pyrolizer/thermal-differential analyzer, e: GAP chromatograph; f: GAP mass spectrometer, g: LAZMA mass spectrometer, h: MANAGA mass spectrometer, i: FPMS dust detector
Phobos-Grunt around
Mars
: (1) Arrival of Phobos-Grunt, (2) Insertion maneuver in orbit around Mars, (3) Drop of the
Fregat
stage and separation of the probe and Yinghuo-1, (4) Maneuver for to raise the
periapsis
, (5) Yinghuo 1 starts his mission on the first orbit, (6) Maneuver to place himself in an orbit close to that of Phobos; (A) Orbit of Phobos, (B) Orbit of insertion of Phobos-Grunt and
Yinghuo-1
, (C) Orbit with raised periapsis, (D)
Quasi-synchronous
orbit with Phobos.