Launch from the Baikonur Cosmodrome; landing
150 km northwest of Tselinograd.
Soyuz 22 was launched to orbit
September 15, 1976 at the unusually high inclination of 64.75°, not used
since the Voskhod program. The orbiting Salyut 5 space station was at the
standard 51.8° inclination, which led some observers to conclude that this
solo Soyuz mission was chiefly intended to observe NATO's Exercise Teamwork,
taking place in Norway, well above 51° latitude and therefore outside of
good visual range of the space station. However, the particular camera used, an
MKF-6 multi-spectral Carl Zeiss camera which allowed
six simultaneous photographs to be taken, suggested to others that
reconnaissance, if part of the mission, was a minor part of it. Soyuz 22's
orbital inclination maximized ground coverage, especially of the former East
Germany. There were two orbit changes within 24 hours of launch. The first came
on the fourth orbit and changed the orbit to 280 by 250 kilometres (170 by 160
mi). The second, on the sixteenth orbit, circularized the orbit to 257 by 251
kilometres (160 by 156 mi).
The mission's stated objectives were to
"check and improve scientific and technical methods and means of studying
geological features of the Earth's surface in the interests of the national
economies of the Soviet Union and the German Democratic Republic."
The
vehicle was the modified
ASTP
back-up ship. The
ASTP
docking mechanism was replaced with an
GDR
built Carl Zeiss-Jena multi-spectral camera. One cosmonaut would control the
operations of the camera from inside the Orbital Module while the second
changed the orientation from the Descent Module. The camera had six lenses,
four visible light and two infrared, which imaged a preselected 165 km (103 mi)
-wide strip of the Earth's surface. This allowed over 500,000 km2 (190,000 sq
mi) to be imaged in 10 minutes.
The first test images from the camera
were of Baikal-Amur railway that was being constructed. On the third day of the
mission the crew took photographs of Siberia to the Sea of Okhotsk in the
morning and the northwestern USSR.
On the fourth day, the crew imaged
the Moon rising and setting to investigate the Earth's atmosphere. This also
allowed them to see how clean their spacecraft's windows were. They also imaged
Central Asia, Kazakhstan, and Siberia, with attention to geological formations
and agricultural effects.
The fifth day focused on Azerbaijan, the
southern Urals, the Baikal-Amur railway again, and western Siberia. At the same
time a second camera was being flown on an aircraft over the same areas in
order to compare the images.
The sixth day saw images of Siberia, the
Northern USSR, and European USSR which were, according to TASS, areas that had
never before been "targets of space photography."
The last full day had
the crew focus on East Germany, where an An-30 aircraft was flying carrying an
identical camera to the one aboard Soyuz 22. They also re-photographed Central
Asia, Kazhakstan, eastern Siberia, and the southwestern USSR in order to
compare images with those taken earlier in the mission. One of the tasks the
crew undertook was to dismantle the camera in order to remove its color filters
needed to calibrate the images back on Earth. The task took them several hours
to complete.
The crew also performed several biological experiments.
They ran a small centrifuge in the orbital module to see how plants grew in
artificial gravity. They also investigated the effects of cosmic rays on human
vision. This effect had first been reported by Apollo astronauts who described
bright flashes when they closed their eyes. This was due to cosmic rays passing
through the eye. Soyuz 22 also carried a small aquarium so that the crew could
watch the behavior of fish.