Author Topic: Node Module - Russian segment  (Read 142794 times)

Offline Stan Black

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Re: Node Module - Russian segment
« Reply #200 on: 11/04/2016 09:17 am »
Will the docking unit feature a hybrid docking port with an adapter like found on Nauka. Also when the NEM docks, will it soft dock before being translated to a side port?

So let me see if I understand…

Zvezda has three hybrid docking units at one end. The hybrid uses the larger diameter hatch from the APAS docking system, but fitted with a standard probe and cone type docking system. Only one cone is required, it is moved for each docking or undocking. Attached to Zvezda by this mechanism is Zarya, Pirs and Poisk, and in the future possibly Nauka (once Pirs is discarded).
https://forum.nasaspaceflight.com/index.php?topic=23444.msg994325#msg994325

In the early plans Zarya also featured hybrid at the nadir port. The early plans included Soyuz-TM №201, №202 and №203 also fitted with hybrids so they could dock. (The part completed Soyuz-TM №201 was used to prepare №206).
https://web.archive.org/web/20030924064202/http://www.novosti-kosmonavtiki.ru/content/numbers/233/32.shtml

Nauka (the Multipurpose Laboratory Module) is also to feature hybrids. A solution has been found to allow Progress and Soyuz to dock to Nauka, that does not require customised configurations. As the cone sticks out slightly from the hybrid, an additional adapter has been placed on Nauka’s hybrid to convert it into a standard docking interface. At some point this adapter will have to be removed from Nauka, possibly by a departing Progress, to allow the next module Prichal to dock.
https://forum.nasaspaceflight.com/index.php?topic=23444.msg994001#msg994001
https://forum.nasaspaceflight.com/index.php?topic=23444.msg1108796#msg1108796

Prichal (the Node Module) is to be operated like on Mir. It will feature two cones, one facing nadir to receive dockings, and one moveable for the side ports. Illustrations show the side ports as hybrids. Once docked a module is translated to the side port using a small mechanical arm called Lyappa.

So the Science and Power Module (NEM) would not be able to fully dock with Prichal, only by the probe and cone, before translation. Or would the adapter be temporarily removed from Prichal? It would still be required after the arrival of the NEM, for Soyuz and Progress dockings.

Offline Olaf

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Re: Node Module - Russian segment
« Reply #201 on: 12/16/2019 10:27 am »
https://www.militarynews.ru/story.asp?rid=1&nid=523749&lang=RU
Google translation
Russia may refuse to launch two modules to the ISS for the creation of a lunar station - Rogozin
Quote
Russian modules can become the basis for a promising lunar station instead of being sent to the ISS, Dmitry Rogozin, head of the Roskosmos state corporation, told reporters.
"As for the next modules, whether they will be sent to the ISS, or will they become a prototype for creating modules that can operate in the orbit of the moon, this is a good question that we started discussing now," Rogozin said at a press conference at the Vostochny spaceport .
According to him, we are talking about scientific energy and nodal modules.

Offline russianhalo117

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Re: Node Module - Russian segment
« Reply #202 on: 03/18/2020 03:25 pm »
Note that Progress M-UM (№303) slated to carry Prichal received modernisation upgrades in order to match that of Progress-MS so that it can perform a docking using the successor KURS-NP (Station)/KURS-NA (Russian VV and modules) antennas for its automated docking. It is now per the NK forums/schedule as well as the NSF schedule been given the updated designation Progress MS-UM (№303) to reflect those and other upgrades.

Offline zubenelgenubi

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Re: Node Module - Russian segment
« Reply #203 on: 05/31/2020 07:39 pm »
Cross-post:
https://twitter.com/anik1982space/status/1265737827976916993
Quote
From today's Rogozin in the Solovyov LIVE channel: - it is planned to create a new Russian near-Earth station after 2030, it will include the Nodal and Scientific and Energy Modules.
If so, neither of these modules would be launched to ISS. They would remain on Earth until construction of the proposed LEO space station begins.
« Last Edit: 05/31/2020 08:01 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: Node Module - Russian segment
« Reply #204 on: 09/30/2020 05:13 am »
Belated update:
https://twitter.com/RussianSpaceWeb/status/1301520770489815042
Quote
As our subscribers already know, the launch of Roscosmos' UM Prichal module is now planned for September 6, 2021 (almost exactly a year from now)...
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Offline zubenelgenubi

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Re: Node Module - Russian segment
« Reply #205 on: 09/30/2020 05:15 am »
Cross-post:
https://ria.ru/20200930/mks-1577975397.html
Google translate:
Quote
"The launch of the multipurpose laboratory module "Science" is scheduled for April 20, 2021, and the "Prichal" nodal module - for September 14, 2021," the agency's source said.
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Offline zubenelgenubi

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Re: Node Module - Russian segment
« Reply #206 on: 11/02/2020 09:05 pm »
https://twitter.com/anik1982space/status/1323304275716546561
Quote from: Tweet, Google translate
Deputy Director of the Department of Manned Programs of Roscosmos Vladimir Daneev announced the timing of the launch of Russian modules to the ISS:
- Multipurpose laboratory "Science" (MLM-U Nauka) - end of April 2021;
- Junction "Berth" (UM Prichal)- September 2021;
- Scientific and energy (NEM) - 2024.
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Offline SMS

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Re: Node Module - Russian segment
« Reply #207 on: 12/01/2020 12:36 am »
https://ria.ru/20201201/zapusk-1587077079.html

Progress M-UM with Prichal module launch is postponed to November 24, 2021.
---
SMS ;-).

Offline Stan Black

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Re: Node Module - Russian segment
« Reply #208 on: 12/19/2020 03:07 pm »
Note that Progress M-UM (№303) slated to carry Prichal received modernisation upgrades in order to match that of Progress-MS so that it can perform a docking using the successor KURS-NP (Station)/KURS-NA (Russian VV and modules) antennas for its automated docking. It is now per the NK forums/schedule as well as the NSF schedule been given the updated designation Progress MS-UM (№303) to reflect those and other upgrades.

Still called Прогресс М-УМ in this tender:-
https://www.zakupki.gov.ru/epz/order/notice/ok504/view/common-info.html?regNumber=0995000000220000083

Offline Stan Black

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Re: Node Module - Russian segment
« Reply #209 on: 07/30/2021 12:46 pm »
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
« Last Edit: 07/30/2021 01:23 pm by Stan Black »

Offline Lars-J

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Re: Node Module - Russian segment
« Reply #210 on: 07/30/2021 11:46 pm »
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.

Offline gemmy0I

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Re: Node Module - Russian segment
« Reply #211 on: 07/31/2021 01:32 am »
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.
Additional docking ports for visiting vehicles would definitely be handy. It'd require adapters to convert the sturdier/larger-passthrough hybrid ports (designed for module attachment) to the standard SSVP ports used by Russian visiting vehicles, but that's simple enough. Nauka has one on its nadir port now (to be removed and disposed by a Progress before NM/Prichal arrives).

Since the central docking probe/cone are the same between hybrid and SSVP ports, the adapter only needs to convert the outer "collar" ring used for hard docking - much simpler than, by contrast, the IDAs to convert APAS-95 to IDS on the US side. (Which is to say, it's probably something that can be whipped up in any competent machine shop, rather than "the tooling doesn't exist any more so we've only got spares from the '80s".)

The need for extra visiting-vehicle docking ports is more acute on the USOS right now than on the ROS, but it's probably still tighter than they'd like now that they're trying to avoid Zvezda-aft due to the leaks. So a couple extra SSVP ports on Prichal could be useful.

What would be really useful, though, is some extra IDS-compatible ports that can host modern visiting vehicles. With both cargo and crew Dragons using docking ports now instead of berthing, port traffic seems to be a major limiting factor now for expanding private ISS flights (particularly long-duration ones). Right now, if a private crew visiting the ISS needs to send up supporting cargo on a private flight, the cargo flight has to arrive first, get unloaded by expedition astronauts, and then depart to make room for the private crew. Things would be a lot more flexible if one or more cargo ships could be docked alongside two crew ships. HTV-X is apparently also going to be docking (with IDS) instead of berthing, further exacerbating the situation.

Russia has its own implementation of IDS (which they continue to call "APAS" since its design lineage is closer to APAS than how Boeing and SpaceX chose to implement IDS), and as I understand it, Prichal is designed such that its ports can easily be converted to that standard. If they were to equip, say, two of the four radial Prichal ports for IDS compatibility, I'm sure the commercial market would happily pay to dock at them and provide a nice stream of revenue for Roscosmos.

The biggest obstacle would be not the mechanical interface but the station-side autonomous rendezvous hardware which needs to be mounted for vehicles to approach it. While the port itself is standardized by IDS for compatibility, the method of autonomous rendezvous is (to my knowledge) not. Hence the U.S. commercial crew program came up with its own standard (the C2V2 system used by Dragon and Starliner); I'm guessing Russia plans to instead use some evolution of Kurs and TORU. So any hypothetical IDS-compatible ports on Prichal would either need to be outfitted with American C2V2 hardware, or Dragon would need to be modified to talk to Kurs. Either option could present political difficulties (especially with the squawk Roscosmos made about uncrewed Dragon approaches being "unsafe" due to not having a TORU-style teleoperated backup mode).

On the other hand, manually docking Dragon/Starliner to an IDS port on Prichal would be straightforward (as the crews have to train for manual dockings anyway). Wouldn't work for cargo Dragons, but those could continue to go to the IDAs on the US side.

Probably not likely to happen given all the political hoops that would need to be jumped through, but fun to speculate about anyway. :)

Offline russianhalo117

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Re: Node Module - Russian segment
« Reply #212 on: 07/31/2021 01:53 am »
What function does this module provide now that the N.E.M. modules are no longer to be part of the I.S.S.?
Additional docking ports, storage, perhaps even a contingency airlock.
Additional docking ports for visiting vehicles would definitely be handy. It'd require adapters to convert the sturdier/larger-passthrough hybrid ports (designed for module attachment) to the standard SSVP ports used by Russian visiting vehicles, but that's simple enough. Nauka has one on its nadir port now (to be removed and disposed by a Progress before NM/Prichal arrives).

Since the central docking probe/cone are the same between hybrid and SSVP ports, the adapter only needs to convert the outer "collar" ring used for hard docking - much simpler than, by contrast, the IDAs to convert APAS-95 to IDS on the US side. (Which is to say, it's probably something that can be whipped up in any competent machine shop, rather than "the tooling doesn't exist any more so we've only got spares from the '80s".)

The need for extra visiting-vehicle docking ports is more acute on the USOS right now than on the ROS, but it's probably still tighter than they'd like now that they're trying to avoid Zvezda-aft due to the leaks. So a couple extra SSVP ports on Prichal could be useful.

What would be really useful, though, is some extra IDS-compatible ports that can host modern visiting vehicles. With both cargo and crew Dragons using docking ports now instead of berthing, port traffic seems to be a major limiting factor now for expanding private ISS flights (particularly long-duration ones). Right now, if a private crew visiting the ISS needs to send up supporting cargo on a private flight, the cargo flight has to arrive first, get unloaded by expedition astronauts, and then depart to make room for the private crew. Things would be a lot more flexible if one or more cargo ships could be docked alongside two crew ships. HTV-X is apparently also going to be docking (with IDS) instead of berthing, further exacerbating the situation.

Russia has its own implementation of IDS (which they continue to call "APAS" since its design lineage is closer to APAS than how Boeing and SpaceX chose to implement IDS), and as I understand it, Prichal is designed such that its ports can easily be converted to that standard. If they were to equip, say, two of the four radial Prichal ports for IDS compatibility, I'm sure the commercial market would happily pay to dock at them and provide a nice stream of revenue for Roscosmos.

The biggest obstacle would be not the mechanical interface but the station-side autonomous rendezvous hardware which needs to be mounted for vehicles to approach it. While the port itself is standardized by IDS for compatibility, the method of autonomous rendezvous is (to my knowledge) not. Hence the U.S. commercial crew program came up with its own standard (the C2V2 system used by Dragon and Starliner); I'm guessing Russia plans to instead use some evolution of Kurs and TORU. So any hypothetical IDS-compatible ports on Prichal would either need to be outfitted with American C2V2 hardware, or Dragon would need to be modified to talk to Kurs. Either option could present political difficulties (especially with the squawk Roscosmos made about uncrewed Dragon approaches being "unsafe" due to not having a TORU-style teleoperated backup mode).

On the other hand, manually docking Dragon/Starliner to an IDS port on Prichal would be straightforward (as the crews have to train for manual dockings anyway). Wouldn't work for cargo Dragons, but those could continue to go to the IDAs on the US side.

Probably not likely to happen given all the political hoops that would need to be jumped through, but fun to speculate about anyway. :)
The UM forward port will not be available to propulsive and certain other VV's due clearance issues with the science airlock and collision with docked RS VV's and USOS. UM is launching with one adapter on its Nadir Port and covers on the aft, forward, port and starboard ports and antennas and hardware would have to be flown and attached via EVA. Only the zenith and nadir ports will be equipped with such hardware at launch launch according to the latest plan. UM sports two Lyappa arm grapple fixtures in addition to the ERA grapple fixtures (they might still fly installed as originally planned). That is the safest way to install an arriving module on the radial ports with all modules arriving via the nadir port. Adapters cannot be flown on Soyuz and Progress spacecraft due to KURS antenna clearances in the launch position.

Offline Rondaz

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Re: Node Module - Russian segment
« Reply #213 on: 07/31/2021 02:40 pm »
The "Prichal" junction module went to Baikonur

07/31/2021 16:28

At the control and test station of the Rocket and Space Corporation "Energia" S.P. Korolev (part of the Roscosmos State Corporation), technological tests of the Prichal nodal module as part of the Progress M-UM transport cargo vehicle-module have been completed. Today, July 31, 2021, the spacecraft went to the technical complex of the Baikonur cosmodrome to continue assembly and pre-flight preparation in accordance with the schedule for the further development of the Russian segment of the International Space Station.

In recent weeks, RSC Energia specialists have successfully completed a cycle of joint tests of the Prichal module with the integrated stands of the Zvezda service module and the Nauka multipurpose laboratory module on the territory of the KIS. After the final operations, the undocked components of the spacecraft and ground test equipment were prepared for shipment to the cosmodrome by rail.

The launch of the Prichal nodal module into low-earth orbit as part of the Progress M-UM transport cargo vehicle-module using the Soyuz-2.1 launch vehicle is planned for November 2021.

https://www.roscosmos.ru/32057/

Offline Rondaz

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Re: Node Module - Russian segment
« Reply #214 on: 07/31/2021 02:41 pm »
One module was docked to the ISS, now we are preparing the next.

Today, the nodal module # Berth went to the Baikonur cosmodrome. Its launch into orbit as part of the Progress M-UM cargo vehicle-module is planned for November 2021.

https://twitter.com/roscosmos/status/1421463419786600451

Offline smoliarm

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Re: Node Module - Russian segment
« Reply #215 on: 08/02/2021 06:51 am »
Ok, if Roscosmos says they will NOT add any other modules after this one - then WHY they are going to add A NODE ?
 :o

What kind of docking port they have on Nauka's nadir?

Online gsa

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Re: Node Module - Russian segment
« Reply #216 on: 08/02/2021 09:58 am »
What kind of docking port they have on Nauka's nadir?
It's the same kind as Zvezda's nadir port. Only Nauka's one has an Soyuz docking adaptor on top of it (the ring only, the cone is compatible).
The adapter will be removed before Prichal docking.

Offline chrikohl

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Re: Node Module - Russian segment
« Reply #217 on: 08/02/2021 06:54 pm »
Ok, if Roscosmos says they will NOT add any other modules after this one - then WHY they are going to add A NODE ?
 :o

I don't rememer the source, so take it with a grain of salt. But aparrently this node module has some imperfections, which limit its warranted life. So for ROSS there will be a second, new one, as the whole idea of it is to be the one uncomplex centerpiece with a long lifetime, while all other modules are replaceable. I assume they will use it as a storage space.

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