Nauka issues apparently resolved?
According to a press release for Roscosmos, engineers have successfully fired the engines on Russia’s new large module for ISS, dubbed Nauka, and the module is now on course for rendezvous with the space station.
On Thursday, July 22, 2021 the Nauka Multipurpose Module Flight Control Group specialists at Moscow Mission Control Center conducted two correction maneuvers of the module that had launched to the International Space Station the previous day.
The first maneuver took place at 15:07 UTC with the module engines burn for 17.23 seconds giving an impulse of 1 m/sec. The second burn for 250.04 seconds took place at 17:19 UTC with an impulse of 14.59 m/sec.
No details were released explaining why the first course correction engine burn did not happen as scheduled.
UPDATE: I have added a question mark to the headline because there indications from a variety of sources, all unconfirmed, that the problems might still persist. We shall find out in the next two days.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
According to a press release for Roscosmos, engineers have successfully fired the engines on Russia’s new large module for ISS, dubbed Nauka, and the module is now on course for rendezvous with the space station.
On Thursday, July 22, 2021 the Nauka Multipurpose Module Flight Control Group specialists at Moscow Mission Control Center conducted two correction maneuvers of the module that had launched to the International Space Station the previous day.
The first maneuver took place at 15:07 UTC with the module engines burn for 17.23 seconds giving an impulse of 1 m/sec. The second burn for 250.04 seconds took place at 17:19 UTC with an impulse of 14.59 m/sec.
No details were released explaining why the first course correction engine burn did not happen as scheduled.
UPDATE: I have added a question mark to the headline because there indications from a variety of sources, all unconfirmed, that the problems might still persist. We shall find out in the next two days.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon. from any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
The engineering efforts towards building and maintaining ISS really has given private space a bedrock of knowledge to build off of. Here is an excerpt from a space dot com article from last November. ‘ But Axiom has learned from the space station’s complicated fate and has already wrestled with how its facility will end. The company is planning its modules to be more truly modular than those on the space station, with the capability to easily remove and replace segments anyway, giving the company flexibility in its future.
The arrangement also means that each module can control its own fate. “Each module is going to be designed with its own guidance, navigation and control, its own thruster capabilities,” Maender said. “So they can fly essentially on their own, and then when they need to, they can separate and return through Earth’s atmosphere on their own.”
I was just reading on NSF that the firings yesterday were only thrusters not main engine and insufficient to bring it to ISS. They have until tomorrow evening to fire the mains.
born01930: I have just updated the post, because the lack of information from Russia, combined with these rumors, makes things more uncertain than first implied by this press release.
Right now one site is saying the main engines are working again and another site says that Nauka is ready to go using the auxiliary engines called DKS (Russian for Correction and Orientation thrusters). Pirs/Progress undocking is scheduled for 5:28 AM PDT tomorrow. Nauka docking on the 29th.
It is conceivable that the DKS thrusters have enough total impulse to make the docking, if they were designed to lend boost and orientation to the entire ISS over a lengthy time. Of course they could not do that latter job if they use their impulse to rendezvous instead of the main engines.
They don’t have to do that job now with new rockets and capsules. ISS will be a bit less cramped now.