Station brightness

So far, the station has been nothing more than an average star in terms
of brightness on the sky on most passes. (unless you are lucky to see a
flare).

Will the addition of the Kibo pressurised module (the largest
pressurised aluminium can on the station) change the brightness level in
any visible way ?

After that, there remains only the last solar array to be sent up that
could change brightness level in any visible way, correct ?

John Doe wrote:



So far, the station has been nothing more than an average star in terms
of brightness on the sky on most passes. (unless you are lucky to see a
flare).

Will the addition of the Kibo pressurised module (the largest
pressurised aluminium can on the station) change the brightness level in
any visible way ?

After that, there remains only the last solar array to be sent up that
could change brightness level in any visible way, correct ?


No, Node3 also has to go up, on 20A. It will be sticking out the port side
of Node1, so it will be parallel to and behind the Kibo.

Mike Ross


--
newsgroups.comcast.net

On Sun, 01 Jun 2008 19:45:33 -0400, John Doe wrote:


So far, the station has been nothing more than an average star in terms
of brightness on the sky on most passes. (unless you are lucky to see a
flare).

I saw Endeavour and ISS pass in March a day after undocking. ISS was
dazzling. No flare, the whole pass (until it went into shadow) was
much brighter than an average star. Brighter than Venus.

Brian

So far, the station has been nothing more than an average star in terms
of brightness on the sky on most passes. (unless you are lucky to see a
flare).

Will the addition of the Kibo pressurised module (the largest
pressurised aluminium can on the station) change the brightness level in
any visible way ?

After that, there remains only the last solar array to be sent up that
could change brightness level in any visible way, correct ?


No, Node3 also has to go up, on 20A. It will be sticking out the port
side
of Node1, so it will be parallel to and behind the Kibo.

Partially correct. When Node 3 is delivered, it starts out on Unity's port
side because PMA3 is on Unity's nadir side. However, PMA 3 will soon then
be attached to Node 3 and then the whole caboodle will be moved to Unity's
nadir port.

"Vincent D. DeSimone" writes:

Partially correct. When Node 3 is delivered, it starts out on Unity's port
side because PMA3 is on Unity's nadir side. However, PMA 3 will soon then
be attached to Node 3 and then the whole caboodle will be moved to Unity's
nadir port.

All changed with CR 10560, "Relocation of the Node 3 from the
Node 1 Nadir to the Node 1 Port."

--
J. Porter Clark

On Mon, 02 Jun 2008 23:28:12 GMT, (J. Porter
Clark) wrote:


All changed with CR 10560, "Relocation of the Node 3 from the
Node 1 Nadir to the Node 1 Port."

Is the PMA going to stay on Node 1 nadir? Where will the Cupola be
mounted, Node 3 Zenith, endcap, nadir?

Brian

Brian Thorn wrote:
On Mon, 02 Jun 2008 23:28:12 GMT, (J. Porter
Clark) wrote:


All changed with CR 10560, "Relocation of the Node 3 from the
Node 1 Nadir to the Node 1 Port."

Is the PMA going to stay on Node 1 nadir?

It will stay there at least until the Russians deliver the MRM (or
whatever it is they're calling it this week) to Zarya nadir. Without
that, putting Node 3 on Unity nadir will block Soyuz dockings at Zarya
nadir.

Where will the Cupola be
mounted, Node 3 Zenith, endcap, nadir?

Nadir, I believe.

In sci.space.station message
, Sun, 1 Jun 2008 19:45:33, John Doe posted:

So far, the station has been nothing more than an average star in terms
of brightness on the sky on most passes. (unless you are lucky to see a
flare).

ISS, when overhead and fully-sunlit, has for at least several years and
maybe since first launch been considerably brighter than the average
visible star. The average star, of course, is not visible.

Today's first ISS pass is from here seen, weather permitting, at 44 deg
altitude and Mag -1.8; Sirius is only Mag -1.47.

--
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Web URL:http://www.merlyn.demon.co.uk/ - FAQqish topics, acronyms & links;
Astro stuff via astron-1.htm, gravity0.htm ; quotings.htm, pascal.htm, etc.
No Encoding. Quotes before replies. Snip well. Write clearly. Don't Mail News.

Brian Thorn writes:

On Mon, 02 Jun 2008 23:28:12 GMT, (J. Porter
Clark) wrote:

All changed with CR 10560, "Relocation of the Node 3 from the
Node 1 Nadir to the Node 1 Port."

Is the PMA going to stay on Node 1 nadir? Where will the Cupola be
mounted, Node 3 Zenith, endcap, nadir?

Cupola will be on the same Node 3 port that it's been at for
some time, but that port will now be nadir. Won't be launched
like that, though.

According to some notions, PMA-3, which is on Node 1 nadir, may
get a temporary berth at Node 1 port about 17A, because they
want to use it as a "stopper" while the crew reroutes cables
from Node 1 port to Node 1 nadir. But then it's back to Node
1 nadir until they can figure out what they want to do with it
next.

--
J. Porter Clark

All changed with CR 10560, "Relocation of the Node 3 from the
Node 1 Nadir to the Node 1 Port."

I stand corrected!

How will having the extra weight to port affect the CMGs? Won't that have
some effect having it off the centerline as it would have been on Unity
nadir?

Of course, the Hab module would have been in the same basic orientation,
come to think...