P. Clay Sherrod Aug 29, 2009
----- Original Message -----
From: "P. Clay Sherrod" <drclay@...>
To: <guide-user@yahoogroups.com>
Sent: Saturday, August 29, 2009 5:08 PM
Subject: Re: [guide-user] Re: UCAC3 from VizieR in Guide 8 - a howto
> Hi John and thanks....
> I have never used, nor am not even vaguely familiar with, VizieR.
> Is this something that - with the preparatory work and loading as you have outlined - I
> will be able to access readily or is there something else needed?
>
> Clay
> _____
> Dr. P. Clay Sherrod
> Arkansas Sky Observatories
> MPC H45 - Petit Jean Mountain South
> MPC H41 - Petit Jean Mountain
> MPC H43 - Conway West
> http://www.arksky.org/
>
> ----- Original Message -----
> From: "ucac3temp" <ucac3temp@...>
> To: <guide-user@yahoogroups.com>
> Sent: Saturday, August 29, 2009 2:34 PM
> Subject: [guide-user] Re: UCAC3 from VizieR in Guide 8 - a howto
>
>
>>
>> Hiya
>>
>> Well, it is as it says on the tin, I'm afraid.
>>
>> This is for immediate use, via vizier, because vizier downloads data to the hard drive
>> in a quasi-ascii way, at least the way Guide 8 downloads it.
>>
>> Now, if you've got the DVD, although you mention CD, I'd heard it to be a double sided
>> DVD, that's in compressed binary files, and when Bill Gray has a chance to see some of
>> those he will likely have to generate a Guide8.exe update. Just as the CD version of
>> UCAC2, either directly or copied to hard disk, is compressed binary files, and has bits
>> of itself decompressed on the file with Guide 8.
>>
>> The VizieR aspect is that VizieR serves the data in a different way to the source, and
>> it is a way that can be used easily via the TDF system.
>>
>> It's not the same thing at all.
>>
>> VizieR serves several large databases in a way Guide can get at them, but also in a way
>> that is a kind of "CDS standard" as opposed to how the source data necessarily look.
>>
>> USNO are serving UCAC3 in a somewhat proprietary manner so they can fit it on one DVD.
>>
>> There are other differences too. For instance, as sourced via CD/DVD ROM all versions
>> of UCAC, first, second and third, do not include declination. They give South Polar
>> Distance in millarcseconds. VizieR converts this to declination for the users'
>> convenience. Bill will likely write something that will convert this as an exe file
>> for
>> data extraction to ascii, and also separately for Guide 8, the same as he did for UCAC2
>> in the past.
>>
>> I assume.
>>
>> I've gone on at length to assure you I'm not just fobbing you off, I'm trying to show
>> the two source routes are different universes.
>>
>> Cheers
>>
>> John
>>
>> --- In guide-user@yahoogroups.com, "P. Clay Sherrod" <drclay@...> wrote:
>>>
>>> Hello John....
>>> Since I am about to install UCAC-3 this is very interesting and important to me, but
>>> frankly I have no idea what you just posted. Can you explain exactly what this does
>>> once
>>> installed?
>>>
>>> Your explanation as to what it IS is very impressive, but I think you may be
>>> overlooking
>>> the obvious, as in: what does this do? What if we are not installing from "VizieR"
>>> but
>>> from CD's, etc., etc.
>>>
>>> Your help is appreciated, but it is me who needs help on this one....thanks.
>>> Sometimes
>>> computer-challenged individuals needs a bit more than the facts.
>>>
>>> Dr. Clay
>>> _____
>>> Arkansas Sky Observatories
>>> MPC H45 - Petit Jean Mountain South
>>> MPC H41 - Petit Jean Mountain
>>> MPC H43 - Conway West
>>> http://www.arksky.org/
>>>
>>> ----- Original Message -----
>>> From: "ucac3temp" <ucac3temp@...>
>>> To: <guide-user@yahoogroups.com>
>>> Sent: Saturday, August 29, 2009 12:02 PM
>>> Subject: [guide-user] UCAC3 from VizieR in Guide 8 - a howto
>>>
>>>
>>> >
>>> > Alrighty then, here's a temporary ucac3 from vizier for Guide 8 thingy until Bill
>>> > has
>>> > chance to do a grown up and more sophisticated one, because it is quite a busy
>>> > dataset,
>>> > with lots of flags and all that.
>>> >
>>> > This will give you positions, errors on positions, proper of the motions, errors
>>> > thereupon, and ucac3 "model fit" ucac3 mags as well as 2mass J and Ks mags and
>>> > errors
>>> > thereon, and maybe something else, I forget already.
>>> >
>>> > I haven't bothered with any flags, ones such as those for doubles will only crop up
>>> > rarely, and I'm fairly sure most of the astrometry software ignores various flags,
>>> > especially the photometric ones, so why shouldn't a charting proggie? Also no final
>>> > paper has been published yet so exactly what some flags represent and which one's
>>> > concern the average chart maker or scope pointer is summat else altogether, even if
>>> > there is a readme explaining some points, that's not the same as a full description
>>> > as
>>> > will appear in the eventual published journal paper.
>>> >
>>> > There's no use in the tdf I've writ for this one of the Guide proper motion
>>> > corrections
>>> > to epoch of date, ie I haven't used those command words to add proper motion to get
>>> > epoch corrections coz it's often "problematic". Positions are thus epoch and
>>> > equinox
>>> > 2000 and proper motion is quoted in more info and help pop up.
>>> >
>>> > Guide should not be running when you do the following. Backup any file to be
>>> > edited,
>>> > just make a copy of if unsure.
>>> >
>>> > First, you need to get hold of download.txt. Make a back up of the original. It's
>>> > in
>>> > the Guide directory.
>>> >
>>> > Place it in a text editor. There are already a number of catalogues listed, and the
>>> > last one is followed by a line simply saying
>>> >
>>> > end
>>> >
>>> > insert before this last line the following, via cut and paste or type it
>>> >
>>> > 2803 -cI/315/out&-out.all=1 ucac3.dat
>>> >
>>> > If you already have an entry/line starting 2803, use a number after whatever number
>>> > you've already got.
>>> >
>>> > Remember that new number of yours though, you'll need it in toolbar.dat.
>>> >
>>> > Now, backup toolbar.dat. Load toolbar.dat into a text editor. Again, it's in the
>>> > Guide
>>> > directory.
>>> >
>>> > Increment the number at top of toolbar.dat by 1. ie if it's 3000 make it say 3001,
>>> > just
>>> > by simple text editing.
>>> >
>>> > Add/insert somewhere, probably near where you see a line like !usno.bmp, the
>>> > following
>>> > new line
>>> >
>>> > 2803 !ucac3.bmp UCAC3 data from VizieR
>>> >
>>> > there are 3 spaces at the start of that line, make it line up with the other
>>> > nonhashed
>>> > lines in toolbar.dat if confused.
>>> >
>>> > Again, if you used a number other than 2803 in download.txt you use that number
>>> > instead
>>> > of 2803 here in toolbar.dat.
>>> >
>>> > Save that in the Guide directory.
>>> >
>>> > You ain't got a button for the toolbar, I hear you cry.
>>> >
>>> > Okay then, I'll upload ucac3.bmp to the yahoo webpages FILES account, download it
>>> > from
>>> > there. Alternatively just find any small bmp in you Guide directory, copy it,
>>> > rename
>>> > it
>>> > to ucac3.bmp, put it any old paint package, even a basic one like the one that comes
>>> > with the OS, zoom in a lot and pixel edit it to look however you want, and save it
>>> > as
>>> > ucac3.bmp to your Guide directory.
>>> >
>>> > And that's it. You run Guide, you press the button, the ucac3 data downloads from
>>> > VizieR (I'm using Strasbourg server, dunno if it's gone worldwide re servers as
>>> > yet).
>>> >
>>> > Except, that isn't it, coz you can't see anything.
>>> >
>>> > So, here is the tdf to display it.
>>> >
>>> > Cut and paste the below text into a text editor, save it to Guide directory as a
>>> > file
>>> > called ucac3.tdf, and you'll get help and more info. It should be on via default.
>>> >
>>> > Stars are coloured via 2mass bumf, and drawn to the ucac3 model fit magnitude (I
>>> > ain't
>>> > bothered quoting the ucac3 aperture fit magnitude, yep, two for the price of one you
>>> > get
>>> > nowadays, or bogof as they call it here).
>>> >
>>> > I'll shove a copy of that in files too.
>>> >
>>> > You lucky people...
>>> >
>>> > As I say, you'll no doubt get a more grown up version later, and those who wish to
>>> > get a
>>> > dvd will probably in time be able to use that, hopefully even when copied to hard
>>> > drive,
>>> > but these are only just shipping out, and will be slowly generated, I believe, so it
>>> > may
>>> > be a long while afore Guide can meaningfully support said.
>>> >
>>> > Cheers
>>> >
>>> > John
>>> >
>>> > John Greaves
>>> >
>>> >
>>> > ---------cut and paste from next line--------
>>> > file ucac3.dat
>>> > title UCAC3
>>> > RA H 12 9
>>> > units0 -2
>>> > de d 29 9
>>> > text 1 9
>>> > mag 70 6
>>> > photo J:163,5 H:180,5 K:197,5
>>> > ~b 1 9 3UCAC %s\n\n
>>> > ~r 12 9 RA 2000 %5R +/- %[24,3] mas\n
>>> > ~r 29 9 Dec2000 %5D +/- %[41,3] mas\n\n
>>> > ~r 29 0 RA %[12,9] deg Dec +%[30,8] deg\n\n
>>> > ~r 29 0 - RA %[12,9] deg Dec %[29,9] deg\n\n
>>> > ~r 52 8 RA mean epoch: %s\n
>>> > ~r 61 8 Dec mean epoch: %s\n
>>> > ~r100 2 %s used observations\n\n
>>> > ~b117 8 muRA : %s +/- %[129,4] mas/y\n
>>> > ~b134 8 muDec : %s +/- %[145,4] mas/y\n
>>> > ~r113 2 \nfrom %s catalogues\n
>>> > ~b 70 6 \nR_u3 : %s +/- %[86,5]\n
>>> > ~b163 6 J : %s +/- %[171,4]\n
>>> > ~b197 6 Ks : %s +/- %[205,4]\n
>>> >
>>> > epoch 2000
>>> > type 6
>>> > goto spaces # Ignore extra spaces in 'go to'
>>> > goto case # Ignore upper vs. lower case in 'go to'
>>> > label spaces # Remove extra spaces in the labels
>>> > field 0.00 15.00
>>> > mag lim 10
>>> > shown 7
>>> > end
>>> > -----------cut and paste to previous line---------
>>> >
>>> >
>>> >
>>> >
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>>> >
>>> >
>>>
>>
>>
>>
>>
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