Would it be possible to fudge the longitude instead of the time?
That way automatic trackers that assume UTC is almost UT1 would still find
their target.
/tvb (iPhone4)
On Jun 8, 2012, at 11:48 AM, Rob Seaman wrote:
> Some other issues: pointing the telescope is not the same as tracking, sol
Some other issues: pointing the telescope is not the same as tracking, solar system targets move at non-sidereal rates, IR cameras and others at non-visible wavelengths have to be pointed with blind offsets, fiber-fed spectrographs place hundreds (thousands in the near future) of tiny apertures ac
On Fri 2012-06-08T13:47:29 -0400, Gerard Ashton hath writ:
> So summarizing what I find in Steve's paper
[...]
> it requires intervention by the on-site observing technicians.
[...]
> The same telescope will develop serious problems within a year of
> the discontinuance of leap seconds.
Different
So summarizing what I find in Steve's paper, and only concerning the
pointing of the telescope and not the reporting results from the scope,
large telescopes with guidance systems from the 1970s and 1980s have a guide
camera field of view of 3 arcminutes, or a bit more. So if the telescope was
aime
On 2012 Jun 8, at 09:11, Warner Losh wrote:
> I've heard of some with built-in GPS receivers to get time,
> and the internal receivers were hard to swap out
The last one in my paper is the APF. It is a closed-source
black-box system which relies on its own nonconformant code for
celestial and ter
On Jun 8, 2012, at 9:51 AM, Rob Seaman wrote:
> On Jun 8, 2012, at 8:26 AM, Gerard Ashton wrote:
>
>> There seems to be confusion between the preprint table of contents and the
>> titles of the papers one finds upon clicking the link. Could you specify how
>> to get to the preprint?
>
>
> I th
On Jun 8, 2012, at 8:26 AM, Gerard Ashton wrote:
> There seems to be confusion between the preprint table of contents and the
> titles of the papers one finds upon clicking the link. Could you specify how
> to get to the preprint?
I think Steve meant:
http://www.cacr.caltech.edu/future
There seems to be confusion between the preprint table of contents and the
titles of the papers one finds upon clicking the link. Could you specify how
to get to the preprint?
Gerry Ashton
-Original Message-
From: leapsecs-boun...@leapsecond.com
[mailto:leapsecs-boun...@leapsecond.com] On
On 2012 Jun 8, at 04:32, Gerard Ashton wrote:
> The list often discusses the fact that astronomers need UT1. Does anyone
> know astronomer's requirement for pointing accuracy. Does anyone know of a
> document that discusses how astronomers receive ΔUT1 and incorporate it in
> telescope pointing sys
The list often discusses the fact that astronomers need UT1. Does anyone
know astronomer's requirement for pointing accuracy. Does anyone know of a
document that discusses how astronomers receive ΔUT1 and incorporate it in
telescope pointing systems. (For telescope, read any astronomical instrument
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