Nikolai Tikhonov (cosmonaut)

Nikolay Vladimirovich Tikhonov (born May 23, 1982) was a Russian cosmonaut, selected in 2006. He was scheduled to make his first space flight in 2020, onboard Soyuz MS-16 but was removed for medical reasons.

This name uses Eastern Slavic naming customs; the patronymic is Vladimirovich and the family name is Tikhonov.
Nikolay Tikhonov
Born (1982-05-23) May 23, 1982
Novomoskovsk, Russia SFSR
StatusRetired (Jul 2020)
NationalityRussia
Space career
RSA Cosmonaut
Time in space
None
Selection2006 RSA Group
MissionsSoyuz MS-18

Cosmonaut career

After working as an engineer for RKKE, he was selected for cosmonaut training in 2006. He was selected as a backup flight engineer for Soyuz MS-02. He was made a prime crew member of Soyuz MS-04 but, due to Russian budget cuts, the crews were changed and Tikhonov was then slated to make his first spaceflight on the Soyuz MS-10 spacecraft. He was again removed from the manifest due to delays in launching the Russian Nauka module.[1][2] He was scheduled to fly into space as commander of the Soyuz MS-15 mission, although he was removed for a third time following the aborted launch of Soyuz MS-10, and the subsequent crew changes that followed. He was scheduled to finally make his first flight onboard Soyuz MS-16 in 2020, but ended replaced due medical reasons.[3]

Tikhonov (right) as part of the Soyuz MS-02 backup crew.

In July 2020 it was reported he had left the cosmonaut corps "in connection with new data on his state of health". [4]

gollark: Obviously the most practical definition is the one defining it as the unique solution to certain differential equations.
gollark: sin x = x for small x, so it's probably fine.
gollark: Oh, right, trigonometry, I forgot about that.
gollark: So, based on my possibly entirely wrong calculations, assuming a difference in speed of 10m/s between the Earth and stuff on it is survivable, you are safe up to about 2 degrees of latitude from either pole.
gollark: Yes, PWM the sun.

References
  1. Ben Evans (May 30, 2018). "No U.S. Crew Will Command The International Space Station in 2019". AmericaSpace. Retrieved August 18, 2018.
  2. Ben Evans (October 30, 2016). "As Soyuz MS-01 Lands, International Partners Look Ahead to Reduced Crewing in 2017". AmericaSpace. Retrieved August 18, 2018.
  3. @katlinegrey (2020-02-16). "Breaking news! #Roscosmos decided to replace the crew members of #SoyuzMS16 with the backup crew due to medical indications. rbc.ru/technology_and..." (Tweet) – via Twitter.
  4. "Cosmonaut Nikolai Tikhonov dropped out of the cosmonaut corps". gctc.ru. Jul 31, 2020. Retrieved August 7, 2020.
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