Misja Cygnus D1

[jmvh]

Trochę smaczków związanych z tematem, najpierw z SFN, (wyróżnienia moje):

NOTE: On its first test flight to the International Space Station, the Cygnus spacecraft will launch with 1,543 pounds, or 700 kilograms of cargo and supplies. The mission is considered a demonstration flight by NASA, and none of the cargo is essential.

    M-02 bag, Crew Provisions/CCP                                    (162.19 pounds)
    M-02 bag, OFK/ODF/MISC HDWR                                      (145.68 pounds)
    M-01 bag, Crew Provisions/Camera Light Pan-Tilt Assembly Box     (179.08 pounds)
    M-01 bag, Crew Provisions                                        (122.73 pounds)
    M-02 bag, Hygiene Towels/Nitrile Gloves                          (116.36 pounds)
    M-02 bag, OFK/BOBs                                               (199.01 pounds)
    M-02 bag, Printer and PS120 Hardware                             (188.91 pounds)
    M-02 bag, Bag BOBs (13)                                          (158.29 pounds)
    M-02 bag, Bag BOBs (12)                                          (154.48 pounds)
    M-02 bag, BOBs (12)                                              (116.03 pounds)

A teraz smaczki z artu na NSF:

On the COTS demo mission the Cygnus is carrying 700 kilograms (1543 pounds) of supplies to ISS, including several Bulk Overwrap Bags packed with food, other crew provisions, a Camera Light Pan/Tilt Assembly (CLPA) box, and computer hardware.

Before the spacecraft is unberthed from the Station, it will be packed with approximately 1100 kilograms of trash for disposal when the Cygnus is deorbited in a destructive re-entry.

For the Orb-1 mission, approximately 1350 kilograms of cargo are currently manifested to be taken up to the Station, including the first powered payload in Cygnus.

Ciekaw jestem tej różnicy, 589 kg z press release NASA vs. ~700 kg powtarzające się w innych źródłach. Może wynika to z innego sposobu liczenia co jest ładunkiem a co opakowaniem do niego?

A co do dyskusji nad relacją objętości części ciśnieniowej do ładunku...

A fully loaded Cygnus could carry as much as 2000 kilograms of pressurized cargo, but as Walz noted, “One of the most important things for cargo is not so much mass, it’s actually the volume because most of the cargo that NASA packs is not really dense and so it turns out that thing that NASA really values is the volume of the vehicle.”  Cygnus has a pressurized volume of almost 19 cubic meters.

[jmvh]

Z "5 Mission Description.pdf" wyciąłem strony ze schematem podejścia Cygnusa do ISS - przyda się mieć potem pod ręką:

[jmvh]

Do tego pod adresem http://cesium.agi.com/cygnus/ mamy symulację real-time (jak i można przewijać).

(Psst - gdzie będziemy komentować? Tu, w wątku o ISS? Proszę moda o przeniesienie we właściwe miejsce)

[mss]

Zapowiedź z nasaTV:

September 22, Sunday

4:30 a.m. - Rendezvous, Grapple and Berthing Coverage of the Orbital Sciences/Cygnus Spacecraft to the ISS (Grapple scheduled approximately 7:25 a.m. EDT) - JSC (All Channels)

Dodajemy 6 godzinek i mamy czas u nas

[kanarkusmaximus]

Cygnus miał się dziś zbliżyć do ISS, ale:

This morning, at around 1:30 a.m. EDT, Cygnus established direct data contact with the ISS and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence. Orbital has subsequently found the causes of this discrepancy and is developing a software fix. The minimum turnaround time to resume the approach to the ISS following an interruption such as this is approximately 48 hours due to the orbital mechanics of the approach trajectory.

W skrócie - coś się im skitrasiło z wymianą informacji. Opóźnienie o 48 godzin do zbliżenia do ISS.

[Limax7]

Ktoś obserwował rano ISS i Cygnusa ?

[kanarkusmaximus]

Naszspiejsfjalt donosi, że był problem z GPS:
http://www.nasaspaceflight.com/2013/09/cygnus-cots-graduation-iss-berthing/

[mss]

Z Commercial cargo ship aborts station approach:

Cygnus In-Orbit Update

September 22, 2013

This morning, at around 1:30 a.m. EDT, Cygnus established direct data contact with the ISS and found that some of the data received had values that it did not expect, causing Cygnus to reject the data. This mandated an interruption of the approach sequence. Orbital has subsequently found the causes of this discrepancy and is developing a software fix. The minimum turnaround time to resume the approach to the ISS following an interruption such as this is approximately 48 hours due to the orbital mechanics of the approach trajectory.

[mss]

Z Commercial cargo ship aborts station approach:

Cygnus In-Orbit Update

7:45 a.m. Sunday, September 22, 2013

Following the discovery of a data format discrepancy between an on-board International Space Station (ISS) navigation system and a similar system on Cygnus at around 1:30 a.m. this morning, today's rendezvous with the station was postponed. At this time, NASA and Orbital are developing a detailed plan for a second rendezvous attempt early Tuesday morning.

A software update has been developed and will be tested on a ground-based simulator during the day on Sunday. Upload to Cygnus and in-orbit testing of the software "patch" is planned for Sunday night and into Monday morning. Once this has been accomplished and verified, the current plan is for Cygnus to begin a second rendezvous approach late Monday night, with final approach to the ISS and grapple taking place early Tuesday morning. The Cygnus spacecraft remains healthy, with all major subsystems operating as expected.

[mss]

Cygnus In-Orbit Update

Monday, September 23, 2013

This morning, Orbital and NASA together decided to postpone the approach, rendezvous, grapple and berthing operations of the Cygnus cargo logistics spacecraft with the International Space Station until after the upcoming Soyuz crew operations are complete. The Soyuz crew is due to arrive at the ISS very late on Wednesday, September 25. The earliest possible date for the next Cygnus approach and rendezvous with the ISS would be Saturday, September 28. An exact schedule will be determined following the successful completion of Soyuz operations.

Over the past 24 hours, the Orbital team developed and tested a software fix for the data format mismatch that necessitated a postponement of the first rendezvous operation that was scheduled for the early morning of September 22. However, that process, together with the impending Soyuz crew operations, resulted in a tight schedule to the point that both Orbital and NASA felt it was the right decision to postpone the Cygnus approach and rendezvous until after Soyuz operations.

"This new schedule will allow the Orbital operations team to carefully plan and be well-rested before restarting the critical final approach to the space station. Meanwhile, Cygnus has all the resources needed to remain in orbit for an extended period of time," said Mr. Frank Culbertson, Orbital's Executive Vice President and General Manager of its Advanced Programs Group.

Czyli dopiero po połączeniu z Sojuzem TMA-10M !

[russex]

O ja cię to będzie tydzień po starcie !! Cienkich logistykow tam maja, może uda mi sie tam znaleźć miejsce pracy przy logistyce haha

[kanarkusmaximus]

Popatrzmy na to z pozytywnej strony - cumowanie będzie w sobotę w godzinach rannych - będziemy mogli to zobaczyć! Gdyby w ciągu tygodnia - ci wszyscy, co się uczą lub pracują - już tak łatwo by nie mieli. Studenci jedynie by mogli coś zobaczyć.

[russex]

Popatrzmy na to z pozytywnej strony - cumowanie będzie w sobotę w godzinach rannych - będziemy mogli to zobaczyć! Gdyby w ciągu tygodnia - ci wszyscy, co się uczą lub pracują - już tak łatwo by nie mieli. Studenci jedynie by mogli coś zobaczyć.

I to jest akurat pozytywna wiadomość

[JSz]

Nowa wiadomość: połączenie Cygnusa z ISS dopiero po przybyciu na nią kolejnej załogi. Najwcześniejsza możliwa data to 28 września.
Źródło: http://www.orbital.com/Antares-Cygnus/

MSS: dzięki za subtelną reprymendę

[mss]

z Cygnus In-Orbit Update

Thursday, September 26, 2013

The Cygnus spacecraft remains healthy in-orbit, with all major onboard systems performing as expected. Over the past several days, the Cygnus engineering team has developed, validated and uploaded the one-line software "patch" that resolved the GPS data roll-over discrepancy that was identified during the initial approach to the ISS last Saturday.

Orbital and NASA are currently discussing the best rendezvous opportunity, with the current trajectory plan supporting Sunday morning, September 29 as the next opportunity to rendezvous and approach the ISS. This schedule is still subject to final review and approval by the NASA and Orbital teams.

The Cygnus spacecraft is currently holding at about 2,400 km behind the International Space Station. Later this evening, Cygnus will perform the first of a series of thruster burns to begin the journey back towards the ISS to be in the right position for a rendezvous as early as Sunday morning.

Since its launch from Wallops Island, VA on September 18 aboard our Antares rocket, the Cygnus mission operations team has been monitoring the spacecraft 24/7 with two operational teams - the blue team and the green team -- pulling alternate shifts. Program personnel are well-rested and fully prepared for Sunday's approach and rendezvous. NASA TV will broadcast the rendezvous operations, including approach, grapple and installation beginning at 4:30 a.m. (EDT) on Sunday morning. You can watch live at www.nasa.gov/ntv

Tak więc w niedzielę o 10:30 początek transmisji z przechwycenia i dokowania Cygnusa z MSK !

Jednak na rozpisce transmisji nasaTV nic na razie nie ma