Author Topic: LIVE: Cygnus OA-8 - Antares - November 12, 2017  (Read 88446 times)

Offline Targeteer

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #500 on: 11/13/2017 08:15 PM »
two debris objects have been cataloged.  Covers of some kind?

43008   ANTARES R/B DEB   2017-071C    89.02'  51.63deg 260km 192km      

43009   ANTARES R/B DEB   2017-071D 89.00'  51.62deg 257km  194km
« Last Edit: 11/13/2017 08:15 PM by Targeteer »
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Online FutureSpaceTourist

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #501 on: 11/13/2017 11:34 PM »

Offline centaurinasa

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #502 on: 11/14/2017 12:09 PM »
orbital_atk
"First photo of the deployed solar arrays from the camera on board the S.S. Gene Cernan Cygnus"

https://twitter.com/OrbitalATK/status/930420419252940802

Offline Alesandro

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #503 on: 11/27/2017 09:36 AM »
I saw the last launch of Antares and noticed, that they drained the LOX to the ground in case launch cansellation! Is it right? Is it safely? There were many vapors! Iwonder if there is a spacial place/pool with grit or maybe water?

Offline zhangmdev

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #504 on: 11/27/2017 10:16 AM »
I saw the last launch of Antares and noticed, that they drained the LOX to the ground in case launch cansellation! Is it right? Is it safely? There were many vapors! Iwonder if there is a spacial place/pool with grit or maybe water?

Standard procedure is to drain the LOX and fuel back into tanks of ground facility in case of scrub. The vapor visible is venting of oxygen gas constantly boiling inside the tank.
« Last Edit: 11/27/2017 10:12 PM by zhangmdev »

Offline Alesandro

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #505 on: 11/27/2017 03:34 PM »
I saw the last launch of Antares and noticed, that they drained the LOX to the ground in case launch cansellation! Is it right? Is it safely? There were many vapors! Iwonder if there is a spacial place/pool with grit or maybe water?

Standard procedure is to drain the LOX is fuel back into tanks of ground facility in case of scrub. The vapor visible is venting of oxygen gas constantly boiling inside the tank.
Thanks for answer!
I guess at it! But I am talking about this

Offline zhangmdev

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #506 on: 11/27/2017 04:14 PM »
Likely for gaseous O2 venting.

Offline Alesandro

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #507 on: 11/27/2017 07:14 PM »
I suppose dump pod is aimed not only for gaseous O2, but designed for liquid O2 too! And I wonder whether it is a pool with water or with grit (something else)?
« Last Edit: 11/27/2017 07:15 PM by Alesandro »

Offline zhangmdev

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #508 on: 11/27/2017 08:21 PM »
And I wonder whether it is a pool with water or with grit (something else)?

Containment pond, likely to store the dirty water must be treated before disposal, is the big one on the other side.

Offline rayleighscatter

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #509 on: 11/27/2017 09:23 PM »
The dump pond is just built as a safe place for LOX to spill until it evaporates into the atmosphere. As opposed to it just spilling on the ground and spreading out and potentially igniting or damaging something with critically cold temperatures. It shouldn't need anything in the pond (it will boil on its own) although I suspect rain water builds up in there on its own (and likely must be pumped out occasionally).

I'm not sure whether that is where it vents to, or if it is a containment pond for contingencies, or both.

Offline ejb749

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Re: LIVE: Cygnus OA-8 - Antares - November 12, 2017
« Reply #510 on: 11/27/2017 11:00 PM »

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