Soviet Union.Cosmonaut Kovalyonok · Salyut-6 station · object in orbit

On May 5, 1981, around 18:00 Moscow time, the crew of the Soviet space station Salyut-6 was executing routine operations in low Earth orbit during the crewed Soyuz T-4 expedition. The commander was Vladimir Vasilyevich Kovalyonok —career cosmonaut, Major General of the Soviet Air Force, twice Hero of the Soviet Union— accompanied by flight engineer Viktor Savinykh.

Kovalyonok had just finished an exercise session when, through an observation porthole, he saw in front of the spacecraft an object flying on a parallel trajectory. The station was overflying southern Africa heading toward the Indian Ocean. In his later accounts, Kovalyonok stressed that the object was small in angular appearance —comparable to the size of a finger held up before the eye—, initially elliptical. By his description, as he watched, the body became translucent, showed an internal structure, and then separated into two connected pieces, 'a bit like dumbbells' (dumbbell/barbell). At one end a gas- or plasma-like emission appeared — Kovalyonok described it as 'reactive object'-like.

Kovalyonok called Savinykh, who left his post and approached the porthole. According to the commander himself, they tried to photograph the phenomenon, but while Savinykh went to fetch the camera the object 'exploded' or dissipated, leaving a puff of smoke, and vanished before it could be recorded. That thwarted instrumental capture is the reason the case —despite its witness cohort— has no photograph: not negligence, but an event that ended too quickly. After the mission, Kovalyonok reported the incident to the SETKA-MO program (↗), the Soviet UAP-investigation program then in its third operational year.

The strongest skeptical interpretation comes from U.S. space journalist James Oberg, a specialist in the Soviet program: Oberg argues that many cosmonaut 'sightings' correspond to distant rocket launches or missile tests, whose fuel and exhaust clouds in vacuum, lit at grazing angles, produce translucent, shape-shifting objects that dissipate within minutes — exactly the described profile. Kovalyonok himself, in later interviews (notably the Russian documentary 'Космонавты и НЛО'), maintained he believed he had observed an unaccredited artificial terrestrial object, not an anomalous entity, though he could not identify it; the cross-check of Soviet and U.S. launch schedules for that date and trajectory, per the available accounts, found no recorded compatible test. The case remains on the record as an unresolved sighting within the SETKA archive and the cosmonautics literature, with the launch-exhaust hypothesis a live but unconfirmed prosaic candidate.

It is the corpus's case with the highest institutional witness cohort: two Soviet cosmonauts on duty, one of them a Major General of the Air Force twice Hero of the Soviet Union, observing an object from a state space station during an active crewed mission. The evidential modality combines elements no other corpus case assembles simultaneously: (a) witnesses with maximum-level military institutional credentials, (b) observation site that is national space infrastructure, (c) report entered into the state SETKA archive, (d) negative cross-check of compatible launches. Its value for the corpus is geographic (closes the Soviet gap post-Petrozavodsk) and modal (institutional cosmonaut testimony without Western equivalent until the sworn pilot testimonies of Fravor/Dietrich in 2017). Tier A and not Tier S because it is testimony without coordinated instrumentation (camera, radar) and because Kovalyonok himself did not rule out a terrestrial artificial explanation — the case remains open, not anomalous.