Pirs will vacate the space station attached to the uncrewed ISS Progress 77 spacecraft, which is scheduled to undock at 9:15 a.m. Friday, July 23. Live coverage on NASA Television, the NASA app, and the agency’s website will begin at 8:45 a.m. A few hours later, Progress’ engines will fire in a deorbit maneuver to send the cargo craft and Pirs into a destructive reentry in the Earth’s atmosphere over the Pacific Ocean. Deorbit and reentry will not be covered on NASA TV.
Too early to say, but 50% of this complex mission is done, Nauka launched and made it to the designated orbit. Now we will see how its onboard systems will be put into operation and perform.Is the Mission a success??
Want to update your desktop wallpapers? A set of photos of the Proton-M with the #Nauka laboratory module launch.
Some more statistics and fancy figures: today’s launch was the 111st for the modernized variant of Proton rocket.
Want to update your desktop wallpapers? A set of photos of the Proton-M with the #Nauka laboratory module launch.
— РОСКОСМОС (@roscosmos) July 21, 2021
Some more statistics and fancy figures: today’s launch was the 111st for the modernized variant of Proton rocket. pic.twitter.com/hCvmqnhYkM
Ok, guys, my source says, that the Kurs antenna was opened yesterday evening. There are some other issues, but they are working on it; there’s nothing irreparable with #Nauka.
— Katya Pavlushchenko (@katlinegrey) July 22, 2021
Ok, guys, my source says, that the Kurs antenna was opened yesterday evening. There are some other issues, but they are working on it; there’s nothing irreparable with #Nauka.
Only that it’s not fatal and that they are working on it.
— Katya Pavlushchenko (@katlinegrey) July 22, 2021
BREAKING NEWS: #Pirs undocking will be moved to Saturday! #Nauka #MLM #ISS #Exp65 Source: #ISS livestream from #Houston to @Aki_Hoshide (ISS commander on S/G2)
— Ian Luca Benecken (@Ian_Benecken) July 22, 2021
So it has been confirmed: Pirs undocking won't happen tomorrow! It has been moved to Saturday!
— Ian Luca Benecken (@Ian_Benecken) July 22, 2021
UPDATE: #Nauka's main engines (pictured in operation) are currently out of commission. Specialists are troubleshooting the issue and developing a backup rendezvous plan. The module has ~30 stable orbits at current altitude.
UPDATE: #Nauka's main engines (pictured in operation) are currently out of commission. Specialists are troubleshooting the issue and developing a backup rendezvous plan. The module has ~30 stable orbits at current altitude. EXCLUSIVE DETAILS: https://t.co/KZE3WlnXSu pic.twitter.com/uEAP4irjyi
— Anatoly Zak (@RussianSpaceWeb) July 22, 2021
#Nauka update: Mission control just programmed the module to conduct first test engine firing. The planned orbit correction to follow, if everything works as planned. DETAILS: https://t.co/KZE3WlnXSu pic.twitter.com/kw9z5FQN1R
— Anatoly Zak (@RussianSpaceWeb) July 22, 2021
#Nauka update: Mission control just programmed the module to conduct first test engine firing. The planned orbit correction to follow, if everything works as planned. DETAILS: russianspaceweb.com/insider-conten…
According to my source, Roscosmos is waiting for a communication session with MLM #Nauka after 20:00 MSK to upload a program for the orbital maneuver.
— Katya Pavlushchenko (@katlinegrey) July 22, 2021
Just a shame that the so called Heavy Kosmos got abandoned in Russia long ago as I think that might have been the only vehicle with the ability to shunt something with the mass of Nakua.Hope everything turns out okay in the end, it would be a shame to lose the module.
Whoops, the dramatic story of MLM Nauka already continues to develop just 1 orbit into space - one docking antenna & (not used yet) nadir docking port target unable to be confirmed deployed + IR horizon sensors & multiple RCS thrusters reporting errors….https://t.co/y0Lu07McDH pic.twitter.com/WAkzvwemm8
— Cosmic Penguin (@Cosmic_Penguin) July 21, 2021
...one more thing: at this point, there is no information that Nauka's tank membranes have leaks in orbit. Those rumors in the Russian press might be a garbled echo of my reporting here ;)-> https://t.co/kI0aPCmMVI pic.twitter.com/2AziN8Gi80
— Anatoly Zak (@RussianSpaceWeb) July 22, 2021
The delayed firrst orbit raise burn for Nauka will now take place in the next few hours using backup engines, as the main engines are at least temporarily out of action. Here are the apogee and perigee orbital heights for Nauka (blue) and the rocket stage (red) so far pic.twitter.com/oX5yLa1KuG
— Jonathan McDowell (@planet4589) July 22, 2021
Currently, telemetry is being received from the #Nauka module systems.
— РОСКОСМОС (@roscosmos) July 22, 2021
The information is used to conduct functioning tests of the module’s onboard equipment. https://t.co/EiGK0OXjqR
After analyzing telemetry received from the #Nauka module, rocket and space industry specialists decided to schedule the #Pirs module deorbit for Saturday, July 24. https://t.co/5EdoOjAeAs
— РОСКОСМОС (@roscosmos) July 22, 2021
Roscosmos said:After analyzing telemetry received from the #Nauka module, rocket and space industry specialists decided to schedule the #Pirs module deorbit for Saturday, July 24.
Тестовое включение двигательной установки модуля #Наука и импульс формирования орбиты отработаны штатно. pic.twitter.com/Qutw5V3W4I
— РОСКОСМОС (@roscosmos) July 22, 2021
Roscosmos said:Тестовое включение двигательной установки модуля #Наука и импульс формирования орбиты отработаны штатно.
The test firing of the propulsion system of the #Science module and the orbit formation impulse worked normally.
The test firing of the MLM propulsion system and the orbit formation impulse were worked out in a regular manner.
The test engines burn of #Nauka was successful. The orbit was increased. https://t.co/yM4U41qbis
— Katya Pavlushchenko (@katlinegrey) July 22, 2021
The test engines burn of #Nauka was successful. The orbit was increased.
The #Nauka Flight Control Group specialists conducted two correction maneuvers of the module: https://t.co/Bq9abGzORj
— РОСКОСМОС (@roscosmos) July 22, 2021
📍 The first maneuver took place at 15:07 UTC with the module engines burn for 17.23 seconds
📍 The second burn for 250.04 seconds took place at 17:19 UTC pic.twitter.com/Z7akW6Pkgf
The #Nauka module on its way to the #ISS, zipping across the sky at high speed at ~233 km altitude around 23:11 CEST this evening. Filmed from Leiden, the Netherlands, with a WATEC 902H2 Supreme + 1.4/35 mm lens at 25fps.
VIDEO:
— Dr Marco Langbroek (@Marco_Langbroek) July 23, 2021
The #Nauka module on its way to the #ISS, zipping across the sky at high speed at ~233 km altitude around 23:11 CEST this evening. Filmed from Leiden, the Netherlands, with a WATEC 902H2 Supreme + 1.4/35 mm lens at 25fps.https://t.co/u8jp2F1Pc1
I saw something about them troubleshooting the Kurs automatic docking system.According Roscosmos
Nauka makes good and will do two engine burns on 24 July to get closer to ISS
According Anatoly Zak
Ground team is work on issue with Automatic docking system
who depending on source, is not operational or report errors...
On Friday, July 23, 2021, specialists of the flight control group of the multipurpose module "Nauka" at the Mission Control Center of TsNIIMash (part of the State Corporation "Roscosmos") conducted two corrective maneuvers of the module launched on Wednesday to the International Space Station.
The next pulses for further orbit alignment are scheduled for July 24th.
No new TLEs for Nauka for the past 18 hours, so we still don't have independent confirmation of any further burns. pic.twitter.com/HGkzD00MGs
— Jonathan McDowell (@planet4589) July 25, 2021
Nauka orbit update: still coasting in 334 x 406 km orbit according to epoch 2028 UTC elset from SpaceTrack pic.twitter.com/Kd2g93EFEj
— Jonathan McDowell (@planet4589) July 25, 2021
Next maneuver is promised on July 27... so everybody can have a break! ;)
— Anatoly Zak (@RussianSpaceWeb) July 24, 2021
@Roscosmos: undocking of the Pirs module from #ISS, to clear the way for #Nauka arrival, is now scheduled for July 26, 13:56 Moscow (6:56 am EDT). The debris impact in the remote part of Pacific is predicted at 17:51 Moscow (10:51 a.m. EDT): https://t.co/IuRc58JDiZ pic.twitter.com/IZxf1dcItU
— Anatoly Zak (@RussianSpaceWeb) July 25, 2021
.@NASA TV coverage of the Progress 77 and Pirs undocking Monday, July 26, begins at 6:30am ET. Undocking is scheduled at 6:56am The Nauka Multipurpose Laboratory Module will dock to the station on Thursday, July 29. pic.twitter.com/29t8TEsqeb
— International Space Station (@Space_Station) July 25, 2021
Progress MS-16/Pirs: Undocking confirmed, at 6:55am EDT (1055 UTC); the Progress, with Pirs in tow, is now backing away from the space station, ending the docking compartment's 19-year 313-day 9-hour stay; re-entry expected at 10:42am (1442 UTC)
— William Harwood (@cbs_spacenews) July 26, 2021
Progress MS-16/Pirs stack now performed a separation burn designed to increase its distance from #ISS. Deorbiting maneuver is planned in around 3 hours: pic.twitter.com/WRhYqpSWuh
— Anatoly Zak (@RussianSpaceWeb) July 26, 2021
If you are in South Pacific Ocean, you will be able to watch the reentry of #ProgressMS16 and #Pirs later today :) pic.twitter.com/S8SpLh9TiI
— Katya Pavlushchenko (@katlinegrey) July 26, 2021
Progress MS-16/Pirs: Later today, NASA's robot arm will "walk off" onto the Russian Zarya module and carry out a 7-hour video inspection of Zvezda's now-vacant nadir port, looking for any signs of debris or other problems that could cause trouble for Nauka's docking Thursday
— William Harwood (@cbs_spacenews) July 26, 2021
This morning the Pirs docking compartment, with the attached Progress 77 spacecraft, separated from the Space Station that had been its home for the past 20 years. pic.twitter.com/3nK0xB6SZY
— International Space Station (@Space_Station) July 26, 2021
I will add a few more photos of today's historical event!
— Oleg Novitskiy (@novitskiy_iss) July 26, 2021
By the way, the #Pirs is the first module of the International @Space_Station that undocked from the ISS. pic.twitter.com/LaTqBQsyHq
И еще небольшое видео вам в ленту: отстыковка модуля #Пирс от Международной космической станции.
— Oleg Novitskiy (@novitskiy_iss) July 26, 2021
A small video to your news feed: undocking of the #Pirs module from the International @Space_Station. pic.twitter.com/CLnaQT1oeA
The non-combustible structural elements of the #ProgressMS16 cargo ship and the #Pirs module fell in a non-navigable area of the Pacific Ocean.
— РОСКОСМОС (@roscosmos) July 26, 2021
Thank you for your work, Progress and Pirs! pic.twitter.com/Cgb900lDNp
The non-combustible structural elements of the #ProgressMS16 cargo ship and the #Pirs module fell in a non-navigable area of the Pacific Ocean.
Thank you for your work, Progress and Pirs!
Nauka update for Jul 26: the Nauka module remains in its phasing orbit; further rendezvous burns expected tomorrow pic.twitter.com/4CTdrh7rM2
— Jonathan McDowell (@planet4589) July 26, 2021
Nauka
— Zarya (@Zarya_Info) July 27, 2021
RIA-Novosti confirms two issues that contributed to late departure of Pirs from ISS
1 - a sensor failed to signal deployment of the 'Kurs' aerial
2 - Nauka's main engines were offline when it reached orbithttps://t.co/3B0pA4o0pU#Nauka #Pirs #ISS #ProgressMS16
Last night, the Mission Control specialists, using the camera on Canadarm robotic arm, examined the docking port of Zvezda module where #Nauka will be docked. No defects has been discovered, and Nauka is allowed to dock with it. An unscheduled EVA is not required.
— Katya Pavlushchenko (@katlinegrey) July 27, 2021
RIA Novosti writes in their TG Channel that #Roscosmos demanded to convene an extraordinary board of directors of #RSCEnergia and prematurely terminate the authority of its board of directors. I wonder if it is connected with the problems #Nauka in orbit. https://t.co/LcpDqis3iV pic.twitter.com/WiPE5fM2xN
— Katya Pavlushchenko (@katlinegrey) July 27, 2021