is wrong gravity. It does not quantify as an
orbit. Because it is not orbit NASAs project
will fail.

Mitchell Raemsch

On 12/1/2021 7:04 PM, mitchr...@gmail.com wrote:
> is wrong gravity. It does not quantify as an
> orbit. Because it is not orbit NASAs project
> will fail.

Smitch, the spacecraft can "orbit" the point with some stationkeeping.
The points are technically unstable but stationkeeping keeps them in
place for the life of the mission.

Smitch, do you know that there have been spacecraft sent to L2 already?
Three have completed their missions and have been moved away from L2,
three others left L2 to complete their missions elsewhere. The Gaia
Space Observatory is currently operating at L2.

On Wednesday, December 1, 2021 at 8:52:52 PM UTC-8, Michael Moroney wrote:
> On 12/1/2021 7:04 PM, mitchr...@gmail.com wrote:
> > is wrong gravity. It does not quantify as an
> > orbit. Because it is not orbit NASAs project
> > will fail.
> Smitch, the spacecraft can "orbit" the point with some stationkeeping.
> The points are technically unstable but stationkeeping keeps them in
> place for the life of the mission.
>
> Smitch, do you know that there have been spacecraft sent to L2 already?
> Three have completed their missions and have been moved away from L2,
> three others left L2 to complete their missions elsewhere. The Gaia
> Space Observatory is currently operating at L2.

We' will see. If Webb does orbit the Moon it will fall
to its surface...

On Thursday, December 2, 2021 at 11:11:47 AM UTC-8, mitchr...@gmail.com wrote:
> On Wednesday, December 1, 2021 at 8:52:52 PM UTC-8, Michael Moroney wrote:
> > On 12/1/2021 7:04 PM, mitchr...@gmail.com wrote:
> > > is wrong gravity. It does not quantify as an
> > > orbit. Because it is not orbit NASAs project
> > > will fail.
> > Smitch, the spacecraft can "orbit" the point with some stationkeeping.
> > The points are technically unstable but stationkeeping keeps them in
> > place for the life of the mission.
> >
> > Smitch, do you know that there have been spacecraft sent to L2 already?
> > Three have completed their missions and have been moved away from L2,
> > three others left L2 to complete their missions elsewhere. The Gaia
> > Space Observatory is currently operating at L2.
> We' will see. If Webb does orbit the Moon it will fall
> to its surface...

If it doesn't orbit it will fall to its surface.

On 12/2/2021 1:13 PM, mitchr...@gmail.com wrote:
> On Thursday, December 2, 2021 at 11:11:47 AM UTC-8, mitchr...@gmail.com wrote:
>> On Wednesday, December 1, 2021 at 8:52:52 PM UTC-8, Michael Moroney wrote:
>>> On 12/1/2021 7:04 PM, mitchr...@gmail.com wrote:
>>>> is wrong gravity. It does not quantify as an
>>>> orbit. Because it is not orbit NASAs project
>>>> will fail.
>>> Smitch, the spacecraft can "orbit" the point with some stationkeeping.
>>> The points are technically unstable but stationkeeping keeps them in
>>> place for the life of the mission.
>>>
>>> Smitch, do you know that there have been spacecraft sent to L2 already?
>>> Three have completed their missions and have been moved away from L2,
>>> three others left L2 to complete their missions elsewhere. The Gaia
>>> Space Observatory is currently operating at L2.
>> We' will see. If Webb does orbit the Moon it will fall
>> to its surface...
>
> If it doesn't orbit it will fall to its surface.
>

na, Webb is going to L2, and do a small orbit around L2

On 12/3/2021 11:07 PM, Serg io wrote:
> On 12/2/2021 1:13 PM, mitchr...@gmail.com wrote:
>> On Thursday, December 2, 2021 at 11:11:47 AM UTC-8,
>> mitchr...@gmail.com wrote:
>>> On Wednesday, December 1, 2021 at 8:52:52 PM UTC-8,
>>> Michael Moroney wrote:
>>>> On 12/1/2021 7:04 PM, mitchr...@gmail.com wrote:

>>>>> is wrong gravity. It does not quantify as an
>>>>> orbit. Because it is not orbit NASAs project
>>>>> will fail.
>>>>
>>>> Smitch, the spacecraft can "orbit" the point with some
>>>> stationkeeping. The points are technically unstable but
>>>> stationkeeping keeps them in place for the life of the
>>>> mission.
>>>>
>>>> Smitch, do you know that there have been spacecraft
>>>> sent to L2 already? Three have completed their missions
>>>> and have been moved away from L2, three others left L2
>>>> to complete their missions elsewhere. The Gaia Space
>>>> Observatory is currently operating at L2.
>>>
>>> We' will see. If Webb does orbit the Moon it will fall
>>> to its surface...
>>
>> If it doesn't orbit it will fall to its surface.
>
> na, Webb is going to L2, and do a small orbit around L2

https://webbtelescope.org/contents/media/images/4201-Image

I don't know if this is mentioned anywhere in the literature,
but I suspect that the need for stationkeeping makes L2
attractive as a location. In space, last year's candy
wrappers, and last decade's, and last century's all
hang around forever -- unless their orbit carries them away.

You don't want any crap hanging around an observatory.
This is why, in the past, we've put them on remote
mountaintops.

At L2, by default, stuff floats away. So the observatory stays
and anything else we affirmatively keep stays, but
anything else, the crap, floats away.

I would dearly love it if the reason NASA picked a
mountaintop that remote is that they want the Webb
to continue to be remote throughout its lifespan,
as human civilization moves into space.

The Hubble is thirty years old. Will we see
space elevators and orbital colonies by 2050?
It's too bad about the crap we (hypothetically) will
put into our neighborhood orbit. One the other hand,
YeeeeHAH!

On 12/4/2021 1:44 AM, Jim Burns wrote:

> You don't want any crap hanging around an observatory.
> This is why, in the past, we've put them on remote
> mountaintops.

The main attractions of mountaintops are: 1) Less atmosphere between the
telescope and what you're looking at, and 2) Less light pollution. But
those are pretty much the same thing.
>
> At L2, by default, stuff floats away. So the observatory stays
> and anything else we affirmatively keep stays, but
> anything else, the crap, floats away.

Good point. No natural crap there, either.

On Friday, December 3, 2021 at 11:00:44 PM UTC-8, Michael Moroney wrote:
> On 12/4/2021 1:44 AM, Jim Burns wrote:
>
> > You don't want any crap hanging around an observatory.
> > This is why, in the past, we've put them on remote
> > mountaintops.
> The main attractions of mountaintops are: 1) Less atmosphere between the
> telescope and what you're looking at, and 2) Less light pollution. But
> those are pretty much the same thing.
> >
> > At L2, by default, stuff floats away. So the observatory stays
> > and anything else we affirmatively keep stays, but
> > anything else, the crap, floats away.
> Good point. No natural crap there, either.

I predict it will fall to the Moon...