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STPR Search Output Columns

This document defines the catalog entries describing the STPR Data Archive.

Clicking on entries in this column will mark the entry for retrieval. To mark all entries, click one of the buttons labelled 'Mark All','Mark public', or 'Mark Proprietary'. (Unmarking all entries can be done the same way using the appropriate button.) For missions with proprietary data, the mark button element will have a yellow background and a '@' symbol to indicate data sets not yet public.

To Retrieve:
Click the button labelled 'Submit marked data for retrieval from STDADS'. This will send all the marked data set names to the data retrieval page. Follow the directions on the displayed pages.

To Coplot:
After selecting up to 15 observations to be plotted, click on the "Plot marked spectra" button to coplot the selected observations.

The spectra that you selected will be automatically scaled to the full range of wavelengths and nearly the full range of fluxes (i.e., y axis plot scale runs from 0 (or .25 * the minimum flux for spectra with negative fluxes) to the 10th highest flux). Each spectrum is automatically assigned a color, up to a maximum of 15.

For plotting Kepler light curves, y-axis scaling is slightly different. Plots scale simply from the minimum to the maximum flux. It is also recommended that only Kepler light curves from the same target be co-plotted due to the differences in flux values.

The spectra are labelled by their dataset names, with a summary of the datasets plotted given below the plot. After inspecting the plot, you may wish to change the selection of datasets which are displayed. Use your browser "Back" button to do this.

Plot range
Adjust the minimum and maximum wavelengths (in Angstroms) and minimum and maximum fluxes (in erg /cm2/sec/A) to select the spectral region of interest and to exclude noisy data. Note Kepler light curves are in units of time and uncalibrated fluxes.

Plot dimensions
Adjust the X size and Y size in pixels to create the size of plot desired. The maximum dimensions are 850 by 640 pixels.

Redraw plot
Use this button to replot the spectra when you have changed the plot range or plot dimensions.

Column Information

Resource ID
name of image file
Example: hs-2009-19-b-full-jpg.jpg

RA (J2000)
RA from center of image array

Dec (J2000)
Dec from center of image array

URL of image file;;

OPO-designated ID

General descriptive title
Example: Hubble Interacting Galaxy UGC 4881

Name of object(s) (semi-colon separated list)
Example: UGC 4881;VV 155

Full caption and related text.
Example: IRAS 20351+2521 is a galaxy with a sprawling structure of gas, dust and numerous blue star knots. IRAS 20351+2521 is located in the constellation of Vulpecula, the Fox, 450 million light-years away from Earth.

Dataset IDs
Sample list of datasets used to create image, with at least one dataset listed for each bandpass. Note this is not always a complete list of exposures used.
Example: J9CV30010;J9CV30020

Press Release
URL of press release web page
sample value:

File Size
File size in kilobytes
Range: 8,000 to 1.2MB

Distance to source in light years, or a redshift

Distance Notes
Comments regarding Distance (if any)

Spatial Reference Dimension
Size of image (x y);
3853.0 3902.0

Spatial Reference Value
Reference coordinates for the image (RA;Dec).

Spatial Reference Pixel
Reference pixel position for the image (x;y). Typically defined at the image center.

Exposure Times
Semi-colon separated list of approximate total exposure times per bandpass.
example: 1000;280;600

Exposure Start Times
Approximate exposure start times of exposures within a specific bandpass in a semi-colon separated list.
Examples: 1997-03-06;1997-03-06;1997-03-0 or November 6, 2005

Image Scale
Image scale in deg/pixel for each axis (as a concatenated string)
Example: -3.053588E-6 -3.050644E-6 deg/pixel

CD matrix
CD matrix (values concatenated into a single character field)
Example: 0.115502E-04 -0.336802E-05 -0.338341E-05 -0.114977E-04

Image Format
Mime type of file
Current values: image/tiff and image/gif

Ref Frame
coordinate system reference frame
Examples: ICRS


Coord Proj
celestial projection used

BandPass ID
Bandpass Designations
Examples: I-band B-band

Spectral Band
Spectral bands using a controlled vocabulary, one for each bandpass
Examples: Optical Optical

Spectral Notes
Notes on Spectral bands
Examples: HSC:Galaxies > Interacting

BandPass RefValues
approximate central wavelength or frequency of each bandpass
meters range:0 to 2.22e-06; hertz range: 1.400e09 to 1.4351e09

Instrument(s) used to obtain exposures
Example: ACS

Related Resouuces
Possible links to related information

Organization responsible for creating image
STScI;Office of Public Outreach

Short description of the full press release caption.
all null currently

Acknowledgments for image creator(s)
example: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and K. Noll (STScI)

Date Created
Date file was generated or made available
example: 4/25/2009 12:00:00 AM

Type of processing performed as defined by SIAP. All values are currently "V" indicating images are for display only, not for numerical analysis.

Number of axes

MJD Date
Average of start dates that were specified for each bandpass in MJD. Note only one start date is specified for each bandpass even when multiple files were included for a given bandpass.

Central Wavelength
Average of mean wavelengths from each bandpass in meters.

Bandpass Hi Limit
Highest mean bandpass in meters for specified colors.

Bandpass Low Limit
Lowest mean bandpass in meters for specified colors.

Bandpass Unit
Units for wavelengths.