Author Topic: Kosmos-482 (V-72 №671) Stranded Venera Programme Spacecraft Reentered  (Read 37260 times)

Offline ejb749


Offline Archibald

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They should have hired Wonderwoman for the job. She would have flipped that agressive soviet probe with the tip of a finger.
« Last Edit: 07/11/2018 04:45 pm by Archibald »
Han shot first and Gwynne Shotwell !

Offline Alter Sachse

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2 large objects burned up in 1981 and 1983.
It is believed that it was the probe (Cosmos 482) and "blok L" (stage 4).
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline Alter Sachse

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The still-in-orbit object 1972-023E is called a "fragment" in RAE-table.
« Last Edit: 07/11/2018 05:11 pm by Alter Sachse »
One day you're a hero  next day you're a clown  there's nothing that is in between
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Offline gwiz

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The photograph clearly shows that 1972-023E is the complete probe and it was still in orbit in 2011.  Clearly when whatever separated in June 1972 (capsule thermal cover would be my guess) the wrong item was labelled as debris.

Offline Phillip Clark

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Vaguely recall someone getting a good photo of Kosmos 482 and showing it was still the complete vehicle with the capsule still attached.

Depends when the photo was taken of course.
I've always been crazy but it's kept me from going insane - WJ.

Offline Alter Sachse

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1972-023E
(2018 July 09)
52.05° 112.39min 202-2471 km
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline gwiz

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Depends when the photo was taken of course.
2011, see this link posted above by ejb749:
http://www.russianspaceweb.com/venera72_kosmos482.html
« Last Edit: 07/12/2018 02:27 pm by gwiz »

Offline Phillip Clark

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I note that Anatoly Zak says "With less degree of certainty, it can be speculated that the Venus lander is still attached to the main probe while its upper stage is not" (my own emphasis).

After my earlier posting, I realised that the appearance of Object E would be too early for the timed separation of the capsule.   This normally happens in the final stage of the approach to Venus and Venera 8's descent was on July 22.   One would expect that the Venera/Cosmos 382 capsule would have separated at about the same time.   Maybe the capsule separated earlier than planned?   Or maybe some other part of the spacecraft broke away?

Zak refers to objects, presumably from the Molniya-M's fourth stage, were found in New Zealand.   I assume that these are what Geoff Perry referred to as the "Ashburton balls" at the time.
I've always been crazy but it's kept me from going insane - WJ.

Offline gwiz

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I note that Anatoly Zak says "With less degree of certainty, it can be speculated that the Venus lander is still attached to the main probe while its upper stage is not" (my own emphasis).
If the capsule separated, where is it?  It must have a higher ballistic coefficient than the main probe and photo shows that the probe is still in orbit as 1972-023E, so the capsule should be as well.  Whatever separated in June 1972 and took over the 1972-023A designation had a lower ballistic coefficient than 1972-023E, as shown by its much more rapid decay rate.

Offline Alter Sachse

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I want to quote Spaceflight vol. 44 (September 2002):
"In early June 2002 the Action Report issued by the NASA Goddard Space Flight Centers
Orbit lnformation Group included a change-of-name for the object catalogued as 1972-
023E. It had previously been designated simply as "debris" but the amendment renamed it as
"Cosmos 482 Descent craft"."
....
"The object catalogued as 1972-23E was not catalogued until about June 29, 1972,..."

One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline Thomas Dorman

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http://www.russianspaceweb.com/venera72_kosmos482.html
Made a written proposal to the  Tira radar staff in Germany  to image Cosmos 482 before it decays back in March 2018 to see if they could tell how much of this spacecraft actually is intact  and the proposal was excepted but have heard nothing since.  Guess they are waiting until it decays well below 200 Kms.
« Last Edit: 10/06/2018 03:21 pm by Thomas Dorman »

Offline Alter Sachse

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1972-023E
(2018 July 09)
52.05° 112.39min 202-2471 km
2018 Oct  01
52.06° 112.17min 202-2451 km
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline Alter Sachse

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1972-023E
(2018 July 09)
52.05° 112.39min 202-2471 km
2018 Oct  01
52.06° 112.17min 202-2451 km
2019 Feb 20
52.06° 111.66min 203-2403 km
One day you're a hero  next day you're a clown  there's nothing that is in between
        Jeff Lynne - "21century man"

Offline high road

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This post made me aware of the Venus landers which I didn't even know existed.  Amazing!  They had to make machinery at earth temperatures that would work after they had been heated up to hundreds of degrees celcius, causing the metals to expand.  I thought that the technology to put a machine on the surface of Venus was decades in the future but it was actually decades in the past.

http://mentallandscape.com/C_CatalogVenus.htm
http://mentallandscape.com/C_Venera09_Processed.jpg
http://mentallandscape.com/C_Venera10_Processed.jpg
http://mentallandscape.com/C_Venera13_Camera1.jpg
http://mentallandscape.com/C_Venera13_Camera2.jpg
http://mentallandscape.com/C_Venera14_Camera1.jpg
http://mentallandscape.com/C_Venera14_Camera2.jpg

Cosmos 482 burnt down 1981 May 5 in the earth's atmosphere.
The object in Earth orbit is probably the landing capsule, which was separated 1972 July 29.

If it is the landing capsule I wonder if it'll make it to the surface in one piece given it was meant to survive the conditions on Venus. Not that it will be found.

Actually, it wasn't built to survive the conditions of Venus. They designed it for the tropical yet earthlike planet they thought Venus was. Only when the first measurements came back, did they realize how hostile Venus really is. The fact that the probes survived as long as they did is all due to Russian overengineering. The following Venera and Vega probes used the same basic design. A lander designed for Venusian conditions would likely be able to last considerably longer. How useful it would be is another matter, as the instrument package is the most sensitive part.
« Last Edit: 02/27/2019 08:01 pm by high road »

Offline daedalus1

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Actually they reengineered the Landers after the U.S. Mariner spacecraft indicated that the conditions on the surface was unbelievably extreme. But still under estimated the real conditions.

Offline Star One

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As to the thread title it is but not yet. By the way Thomas Dorman himself has commented himself under the article.

No, the failed Venus lander from Kosmos 482 is not about to come down yet

Quote
It concerned an unusual object launched 47 years ago, called the Kosmos 482 Descent Craft (1972-023E, CSpOC nr 6073). Word was that it was about to reenter into the atmosphere, maybe even this year.  But will it?  Short answer: almost certainly not.

The source of the prediction is attributed to Thomas Dorman in the Space.com article, but how the prediction was done is not clear from the news coverage. On the request of David Dickinson, who was preparing an article on the topic for Universe Today, I made my own assessment of the issue. I looked at the orbital decay of 1972-023E since 1973 and did some GMAT modelling to gain insight into how the orbital decay will develop in the future.

As I will show in this post, my modelling suggests the Kosmos 482 Descent Craft is not to come down yet for several years.
« Last Edit: 03/23/2019 07:13 pm by Star One »

Offline SnowyOwl

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https://t.me/kiam_ison_network/217
Quote
Spaceship of the advanced ancient civilization is about to return to Earth

The descent module of the Venera 8 probe unlucky backup -- object 3B №671 (named "Cosmos-482") would fall to Earth in early May, after spending half a century in the orbit.

Launched in 1972, the spherical capsule today rotates in an orbit with 52 degrees inclination, an apogee of 393 kilometers and a low perigee of 160 kilometers, located above the Northern Hemisphere. This allows us to assume that around May 10, the object would dive into the atmosphere above our hemisphere.

Since it has been empirically established that reentry time estimation accuracy is approximately equal to one tenth of the remaining period of ballistic existence, nothing can be said definitely about the spacecraft descent area (besides that it would occur south of the 52nd parallel). Moreover, impact time and location prediction is heavily affected by solar activity variations.

It is very likely that the rugged lander, designed for a long descent into the Venus atmosphere, would reach our planet's surface intact... and even the parachute may open :)

IPM ISON experts are monitoring the uncontrolled reentry of 3B type spacecraft. The animation has been filmed on April 9 by S. Shmalts using ORI-22 telescope at the Castelgrande Observatory.
« Last Edit: 04/27/2025 11:08 am by SnowyOwl »

Offline Apollo22

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Ain't that amusing ? the silly thing missed her trip to Venus but finally made it to another planet. And it could even survive its reentry, because Venus is harder than Earth.

Offline edzieba

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