> To the participants of the Phobos-Soil Project To the participants of > the Phobos-Soil spacecraft tracking > > December 8, 2011 > > Dear Colleagues, > > As you may already know, the launch of the Phobos-Soil spacecraft was > a failure. On November 8, 2011 the spacecraft was put into the near > Earth orbit, however, the booster did not turn on, and, therefore, the > spacecraft did not manage to change this initial orbit and transfer to > the interplanetary trajectory. The reason of this failure has not been > determined yet. > > Immediately after this unpredictable event all forces of the mission > control team were concentrated in order to attempt to establish > communication with the spacecraft. Several foreign organizations, in > particular, ESOC-ESA, DSN-JPL-NASA, NORAD-STRATCOM, numerous amateur > observers tracked the spacecraft to establish communication with it > and determine parameters of the orbit, its orientation and attitude. > However, despite people being at work 24 / 7 since the launch, all > these attempts have not yield any satisfactory results. We are > grateful to our foreign colleagues, who provided us with every list of > information about the spacecraft which was crucial at the time. > > Currently, the spacecraft is rotating at the near Earth orbit, > lowering every day, and we expect that it is to entry the atmosphere > in several weeks. Lavochkin Association specialists will continue > their attempts to establish connection with the spacecraft and send > commands until the very end of its existence. We are working > nevertheless on the issue of re-entry and probability of where and > which fragments may hit the ground (if any). There is a sensitive > matter that one of the scientific instruments (Messbauer spectrometer) > contains radioactive material Co-57. However, the amount of Co-57 is > about few (less than 10) micrograms, so that, according to our > evaluations, no significant problems are is anticipated. > > At present, the next steps of the Russian space science program on the > Solar system exploration are being discussed. In accordance with the > current plans, the next missions are Luna-Glob and Luna-Resource. As > another possible additional step, at the moment ROSCOSMOS, ESA and > NASA are discussing the collaboration on the ExoMars and Russian > Mars-NET missions. Moreover, the Russian Academy of Sciences would > like to prepare a new mission to Phobos. However, no decision has not > been taken yet. > > We would like to express our deep gratitude to You and all the > scientists and specialists for collaboration on the Phobos-Soil > Mission, preparation of scientific instruments and provision of ground > support. We are deeply sorry about the failure of the Phobos-Soil > Mission. We hope in future to continue our collaboration on space > science projects. > > Academician Lev Zelenyi > Director, Space Research Institute > Chair, Solar system exploration Board > The Russian Academy of Sciences > > > P.S. Please, convey this letter to members of your team. Thank you. > > _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
This archive was generated by hypermail 2b29 : Fri Dec 09 2011 - 17:49:29 UTC