MACHO Project: Lightcurve Selection Help

Index

Lightcurve Selection
1.0 Navigation
1.1 Using `Back'
1.2 Help
1.3 New Search
1.4 Templates
1.5 ftp Bundle
2.0 Selected Region
3.0 Summary Table
3.1 View
3.2 Bundle
3.3 Location (J2000)
3.4 MACHO Id
3.5 Proximity
3.6 Template Magnitudes

Lightcurve Selection

1.0 Navigation

1.1 Using `Back'

The Back browser button generally should not be used to return to the Lightcurve Retrieval query form since the previous page is actually the transient jump-through prior to the summary page's display. Using Back will cause the redisplay of the same summary page. If you're really fast on the click, you can sometimes jump back twice in order to reach the query page. It's much easier to select New Search though.

1.2 Help

Help displays this document.

1.3 New Search

New Search redirects the browser to a new Lightcurve Retrieval query form.

1.4 Templates

Templates redirects the browser to the Macho Domain, Field, and Template Image specifications. The Template Image identifier is provided as an ftp link to the relevant observation image.

1.5 ftp Bundle

ftp Bundle initiates the immediate ftp of the selected lightcurves bundled in a Unix tar file.

2.0 Selected Region

The user defined region is displayed in HMS/DMS/arcsecond (J2000) notation.

3.0 Summary Table

The table contains attribute data on lightcurves within the bounded region. The attribute data includes a lightcurve's RA/Dec location, Macho Project Identifier, template magnitudes and proximity to the center of the bounded region.

The table's clickable fields initiate either:

  • a lightcurve browser and extracter (View) or
  • selection for later batch retrieval of multiple lightcurves' data (Bundle).

    3.1 View

    A lightcurve browser is invoked to display the selected lightcurve. The tool provides a myriad of options such as zoom in/out, list a single observation's data, list the entire lightcurve's data, display photometry data, alter units of display.

    A secondary browser window is opened for lightcurve display; it is used for all lightcurve browsing.

    3.2 Bundle

    The lightcurve is selected for later bundling into a Unix tar file prior to ftp download.

    3.3 Location

  • RA : Right Ascension of star in J2000 coordinates.
  • Dec : Declination of star in J2000 coordinates.

    3.4 Field.Tile.Seqn

    The Macho Project identifier for the star consisting of the Macho Field, Tile, and Sequence identifiers for an individual star. Refer here for the Macho Field definitions.

    3.5 Proximity

    Closeness to the centerpoint of the bounded region. Measured in arcseconds.

    3.6 Template Magnitudes

    Values used as template magnitudes for the listed star. Magnitudes are measured in instrumental units.

    Acknowledgement to use when referencing MACHO Project data

    "This paper utilizes public domain data originally obtained by the MACHO Project, whose work was performed under the joint auspices of the U.S. Department of Energy, National Nuclear Security Administration by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48, the National Science Foundation through the Center for Particle Astrophysics of the University of California under cooperative agreement AST-8809616, and the Mount Stromlo and Siding Spring Observatory, part of the Australian National University."

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