Downloads..Supplemental Files..

Dot Files


Dot files make possible the overlay of information and the identification of features in the textures and images displayed with LTVT. They are simple text files with the items of information (name, position, size and feature type) separated by commas.

Available Dot Files

(note: most of these files have additional information incorporated as comments at the top of the file. To view this, open the CSV files with a text processor, such as Notepad or Wordpad.)

IAU Named Lunar Features

  • The main list of IAU-named features for use with LTVT is distributed on the LTVT Download page. It flags certain prominent landmarks on both the Moon's near and far sides for display when the LTVT feature size threshold is set to -1.

The following files are alternate versions current as of 8 Nov 2010. They include information in the IAU's "name origin" field which can be displayed by LTVT_v0_21 and higher, and the unique IAU feature number which permits web links to the IAU Gazetteer pages in LTVT_v0_21 and higher. They also include new IAU lunar coordinates and diameters that appeared on the IAU site on 18 October 2010.

  • (rev. 18 Dec 2012) This is a variant of the IAU list that was used for preparing photographic sectional maps of the Moon on the-Moon Wiki. All primary feature names are flagged and alphabetized, but the Apollo Landing site names are placed after the others, and the letter craters at the very end. The result is that if dots are added with a threshold diameter of "-1", all primary IAU-named feature names in the current map area will be labeled (subject to the possibility of more than one falling at the same pixel location, in which case the name appearing first in the list be printed). With a threshold of "0", all IAU names are printed, including the lettered craters.
  • (rev. 18 Dec 2012) is an alternative version of the complete IAU list prepared by Henrik Bondo that flags the names appearing on the Sky and Telescope's Field Map of the Moon. This is handy for automatically labeling this particular set of noteworthy features, then exploring the many remaining named features by setting the size threshold to a different value. Please note that it covers only the nearside of the Moon, and several classes of features labeled on the S&T map have been omitted because their long and skinny shapes are not accurately represented by the circles drawn by LTVT: this includes all those whose names start with Catena, Dorsa, Dorsum, Lacus, Montes, Oceanus, Palus, Rima, Rimae, Rupes, Sinus and Vallis.

Control Points

  • - the 1994 ULCN, a list of small features with accurately known longitudes, latitudes, and elevations, mostly on the Moon's nearside -- essential for the accurate calibration of nearside images (28 KB; rev. 27 Sep 2006)
  • - ULCN 2005, a similar list covering the entire Moon but meaningful only in connection with the specific Clementine frames on which they were measured. Most efficiently used in conjunction with the Clementine-ULCN2005 Point Lister. (3871 KB; rev. 17 Jan 2007)
  • - This is the complete 1994 ULCN (as above) supplemented with 103 craters near the Moon's south pole whose longitudes, latitudes, and diameters were measured on the USGS-prepared ULCN2005 Warped Clementine Basemap, and additional features near the Moon's north and south poles read from the preliminary Kaguya Laser Altimeter topographic maps of the poles published in Science magazine, Feb. 13, 2009. This was initially prepared in connection with the LCROSS Dec 2008 Campaign and includes all craters that have been announced as containing possible LCROSS impact targets. Without these, the supplemental points, these regions lack a sufficient density of control points for accurate registration of Earth-based images. In most cases, the new control points have been assigned arbitrary numbers, even though some of them are IAU-named craters. (73 kb; rev. 2 Mar 2009)


Landing Site Related

Lunar Reconnaissance Orbiter Camera

  • LRO Narrow Angle Camera Master Targeting Database - this is a list of 6494 locations on the Moon selected for their scientific, or other, interest. The zipped folder includes a cleaned-up version of the spreadsheet from the LROC website (in tab-delimited format for access by those without Microsoft Excel), and transcriptions as LTVT dot files with several optional formats. These allow plotting and labeling the items with their LRO Site_Name's (descriptive names), Site_ID's (LRO-2..LRO-6609), or combinations of the two. Once a LRO region of interest has been identified, additional information about why it was included in the database can be found in the "Rationale" field of the spreadsheet. Examples have been uploaded showing small sections of plates from the Consolidated Lunar Atlas annotated by Site_Name, Site_ID: SiteName and SiteName : Site_ID.


(see the domes page on the-Moon Wiki for the relationships between these lists)


IAU Named Features on Other Planets

LTVT can be used for mapping and studying photos of planetary objects other than the Moon, provided that the longitude and latitude of the Sub-Observer and Sub-Solar points are known (beginning with version 0_21 these can be automatically computed, for the major planets, with the Compute Geometry button).

These files include the name origin information from the IAU website which can be displayed by LTVT_v0_21 (and later) using the Additional Information about Nearest Dot option in the Right Click Image Menu, as well as the IAU feature numbers which can be used internally to link to the full IAU Gazetteer web pages when an internet connection is available. The 28 Dec 2012 versions use the current default control network for each body, and incorporate nomenclature changes through 15 Dec 2012.

External Sources

  • Another excellent source of information in LTVT dot file format (external to the present site) is Kurt Fisher's lists of Apollo Era Depth Measurements for Smaller Nearside Lunar Craters and Other Features, a downloadable table of 2414 depths and heights in his Tables 4 and 5).

For the Future

Other dot files that could be added by anyone with the time and energy to compile them:
  • Locations of historic lunar names from the catalogs of such early lunar mappers as Langrenus, Hevelius and Riccioli.
  • Names and locations of features specified in the original IAU nomenclature of Blagg and Müller, particularly, the names and locations of the Greek-lettered peaks that no longer appear in the IAU database.
  • Names and locations of features tabulated in the System of Lunar Craters, a catalog that includes thousands of craters smaller than those in the normal IAU nomenclature.

This page has been edited 58 times. The last modification was made by - JimMosher JimMosher on Dec 31, 2012 1:48 pm