Wow! does this guy have any clue at all? A Pass tonight for me,

Start Max altitude End Visible passes

19-Jul 01:08 N 8° *01:14* *WNW 298°* *61°* 01:20 SSW 203° - Map and details http://www.n2yo.com/passes/?s=42830#

Sig It will be almost straight north when coming and reach probably at least 45 degrees at 1 AM in the moning before eclipsing. I think it's as dark as it is gonna be at 1 am

Joe WB9SBD

The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/18/2017 11:31 AM, Paul Andrews wrote:

Taken from newsarticle:

Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, told IFLScience: "I think at least one of these can be lived with, but if there were a bunch of them it would make modern astronomy almost impossible."

Not all astronomers think it's a bad idea, however. Michael Wood-Vasey, from the University of Pittsburgh, said Mayak was "quite unlikely to be a problem for astronomers."

He added: "Mayak is orbiting just above the day/night terminator line – it's always sunrise/sunset below where Mayak is orbiting. It will thus be too low on (or even below) the horizon when it really gets dark enough for astronomers to observe."

On Tue, Jul 18, 2017 at 12:26 PM, Joe <nss@mwt.net mailto:nss@mwt.net> wrote:

Why do you think it will be low in the sky?

Joe WB9SBD

The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 7/18/2017 11:22 AM, Paul Andrews wrote:

...

Will this reflector tumble or be stabilized?

If it's a corner reflector - it could have gain in some direction.

My guess is that this size object would reflect 2M signals and up.

The moon is bigger but only reflects 7% of RF energy and it's
much farther away.

I'm sure someone will try to bounce an RF signal off this mylar sail.

It should be easy to see from the ground.  :)      But very low
in the sky.

73 - Paul - W2HRO









On Tue, Jul 18, 2017 at 12:16 PM, Joe <nss@mwt.net
<mailto:nss@mwt.net>> wrote:

    It says once opened it will
    "
    It will span 16 square meters (170 square feet)"

    a Triangle one side of 170 sqft = 18 feet base to peak. But
    if they are saying 170 sqft total, then divided by 3 = 10
    foot tall base to peak.

    Now for a surface to be reflective, how big does it need to
    be in terms of wvelength?

    Joe WB9SBD

    The Original Rolling Ball Clock
    Idle Tyme
    Idle-Tyme.com
    http://www.idle-tyme.com
    On 7/18/2017 11:02 AM, Paul Andrews wrote:

...

    Will this object reflect RF signals?

    Maybe reflect like meteor scatter?

    Maybe too small.

    On Jul 18, 2017 11:58 AM, "Joe" <nss@mwt.net
    <mailto:nss@mwt.net>> wrote:

        he he eh that's why I asked here for a web page or
        similar I saw that also, and thought, ummmm I'm
        interested,, but NOT THAT INTERESTED!! he he he

        Joe WB9SBD
        Sig
        The Original Rolling Ball Clock
        Idle Tyme
        Idle-Tyme.com
        http://www.idle-tyme.com
        On 7/18/2017 10:29 AM, skristof@etczone.com
        <mailto:skristof@etczone.com> wrote:

            Am I the only person who is worried about
            downloading an app from Russia
            onto my smartphone?

            Steve AI9IN

            On 2017-07-18 10:50, JoAnne K9JKM wrote:

                Hi Joe,

                Heavens-Above.com now has pass predictions up
                for the new Russian
                reflector sat "Mayak," listing it as NORAD ID
                2017-042F/42830.
                http://www.heavens-above.com/PassSummary.aspx?satid=42830
                <http://www.heavens-above.com/PassSummary.aspx?satid=42830>
                (that's the page but no predictions were
                actually listed the last time
                I checked it.)

                Plus Mayak has its own app, available to those
                who back the project.
                See: http://cosmomayak.com/default#mobileapp
                <http://cosmomayak.com/default#mobileapp>

                On 7/18/2017 9:42 AM, Joe wrote:

                    While not really a Com bird, it still me be
                    interesting to spot.
                    Does anyone know of a tracking site for this?

                    http://www.iflscience.com/space/russian-scientists-just-launched-a-controversial-artificial-star-that-might-anger-astronomers/all/
                    <http://www.iflscience.com/space/russian-scientists-just-launched-a-controversial-artificial-star-that-might-anger-astronomers/all/>
                    Joe WB9SBD

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