PythonOnSHIPs - Revision history

Ali at 23:15, 25 June 2013

2013-06-25T23:15:19Z

Ali at 23:14, 25 June 2013

2013-06-25T23:14:23Z

Ali: /* Summer Visit Programming Projects */

2013-06-24T15:17:10Z

Summer Visit Programming Projects

Ali at 22:29, 20 June 2013

2013-06-20T22:29:46Z

Ali at 22:26, 20 June 2013

2013-06-20T22:26:38Z

Ali at 22:25, 20 June 2013

2013-06-20T22:25:25Z

Ali at 22:24, 20 June 2013

2013-06-20T22:24:51Z

Ali at 21:46, 20 June 2013

2013-06-20T21:46:15Z

Ali at 23:15, 13 June 2013

2013-06-13T23:15:49Z

Ali at 23:11, 13 June 2013

2013-06-13T23:11:47Z

@@ Line 42: / Line 42: @@
 ==Tutorial 5: Plotting (demo during summer visit)==
 :We use matplotlib's plotting library and documentation.
-:[http://matplotlib.org/users/pyplot_tutorial.html]
+:http://matplotlib.org/users/pyplot_tutorial.html
 :'''Exercises''':
 ::* Plot a histogram distribution of FWHM values of sources in any of your photometry tables.

← Older revision		Revision as of 23:14, 25 June 2013
Line 38:		Line 38:
	::* Define a function that can read an APT table file. Take care to ignore time tags. The input should be an APT table filename. You should return only the ID, the position (ra,dec) and the flux of the source. The remaining columns may be ignored.		::* Define a function that can read an APT table file. Take care to ignore time tags. The input should be an APT table filename. You should return only the ID, the position (ra,dec) and the flux of the source. The remaining columns may be ignored.
	::* Write a code that uses the above function to read say 70um APT results file and 100um APT results file. Compute simple statistics on these values: number of sources, faintest source, brightest source, and median flux.		::* Write a code that uses the above function to read say 70um APT results file and 100um APT results file. Compute simple statistics on these values: number of sources, faintest source, brightest source, and median flux.
		+
		+
		+	==Tutorial 5: Plotting (demo during summer visit)==
		+	:We use matplotlib's plotting library and documentation.
		+	:[http://matplotlib.org/users/pyplot_tutorial.html]
		+	:'''Exercises''':
		+	::* Plot a histogram distribution of FWHM values of sources in any of your photometry tables.
		+	::* Plot 70um flux vs its FWHM as dots, not a line. Annotate any outliers.
		+

@@ Line 54: / Line 54: @@
 . Find the nearest Spitzer 24 micron source to a position.
 * Read in Spitzer 24um source list.
-* Define a function to
+* Define a function to:
-** Read in Spitzer 24um source list.
+** compute radial distance between a position (ra,dec) and all of the Spitzer 24 source positions.

@@ Line 40: / Line 40: @@
-==Summer Visit Projects==
+==Summer Visit Programming Projects==
 . Basic text file conversion
-** Read an APT file (Peggy's list of test objects is fine for this exercise).
+* Read an APT file (Peggy's list of test objects is fine for this exercise).
-** Aperture correct the magnitudes
+* Aperture correct the magnitudes
-** Compare Aperture corrected values to APT corrected Aperture values.
+* Compare Aperture corrected values to APT corrected Aperture values.
-** Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
+* Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
-**Write a ds9 region file using only the Ra, Dec and ID columns.
+*Write a ds9 region file using only the Ra, Dec and ID columns.
 . Read FWHMs of a list of stars
-** Compute statistics: Median, Mininum, Mean, Maximum, Standard Deviation of FWHM values.
+* Compute statistics: Median, Mininum, Mean, Maximum, Standard Deviation of FWHM values.
-** Plot a distribution of FWHM values.
+* Plot a distribution of FWHM values.
-** Overplot a distribution of FWHM values of known point sources.
+* Overplot a distribution of FWHM values of known point sources.
-** Can you make a judgement on what is an is not a source?
+* Can you make a judgement on what is an is not a source?
-.
+. Find the nearest Spitzer 24 micron source to a position.

@@ Line 41: / Line 41: @@
 ==Summer Visit Projects==
-# Basic text file conversion
+. Basic text file conversion
-## Read an APT file (Peggy's list of test objects is fine for this exercise).
+** Read an APT file (Peggy's list of test objects is fine for this exercise).
-## Aperture correct the magnitudes
+** Aperture correct the magnitudes
-## Compare Aperture corrected values to APT corrected Aperture values.
+** Compare Aperture corrected values to APT corrected Aperture values.
-## Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
+** Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
 **Write a ds9 region file using only the Ra, Dec and ID columns.
-# Read FWHMs of a list of stars
+. Read FWHMs of a list of stars
 ** Compute statistics: Median, Mininum, Mean, Maximum, Standard Deviation of FWHM values.
 ** Plot a distribution of FWHM values.
 ** Overplot a distribution of FWHM values of known point sources.
 ** Can you make a judgement on what is an is not a source?
+.

@@ Line 40: / Line 40: @@
-==Summer Visit Exercises==
+==Summer Visit Projects==
 # Basic text file conversion
-:Read an APT file (Peggy's list of test objects is fine for this exercise).
+**Read an APT file (Peggy's list of test objects is fine for this exercise).
-:Aperture correct the magnitudes
+**Aperture correct the magnitudes
-:Compare Aperture corrected values to APT corrected Aperture values.
+**Compare Aperture corrected values to APT corrected Aperture values.
-:Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
+**Write the following columns to another file called 'phot.dat':  ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
-:Write a ds9 region file using only the Ra, Dec and ID columns.
+**Write a ds9 region file using only the Ra, Dec and ID columns.
+#

← Older revision		Revision as of 21:46, 20 June 2013
Line 38:		Line 38:
	::* Define a function that can read an APT table file. Take care to ignore time tags. The input should be an APT table filename. You should return only the ID, the position (ra,dec) and the flux of the source. The remaining columns may be ignored.		::* Define a function that can read an APT table file. Take care to ignore time tags. The input should be an APT table filename. You should return only the ID, the position (ra,dec) and the flux of the source. The remaining columns may be ignored.
	::* Write a code that uses the above function to read say 70um APT results file and 100um APT results file. Compute simple statistics on these values: number of sources, faintest source, brightest source, and median flux.		::* Write a code that uses the above function to read say 70um APT results file and 100um APT results file. Compute simple statistics on these values: number of sources, faintest source, brightest source, and median flux.
		+
		+
		+	==Summer Visit Exercises==
		+	# Basic text file conversion
		+	:Read an APT file (Peggy's list of test objects is fine for this exercise).
		+	:Aperture correct the magnitudes
		+	:Compare Aperture corrected values to APT corrected Aperture values.
		+	:Write the following columns to another file called 'phot.dat': ID, x, y, Ra, Dec, Flux, ApertureCorrected Flux, Aperture Size, Sky Annulus Size
		+	:Write a ds9 region file using only the Ra, Dec and ID columns.
		+	#

@@ Line 29: / Line 29: @@
 ::* Define a list of 5 stars in numpy variables x, y, flux.  Where, x, y are the coordinates and flux is the brightness in some units.  For the star in the middle of the list (at index position 2) write a script to calculate and print the difference in position and in flux between all stars in the list and that star.
 ::* A star has a position as follows: ra = 15.2345 (degrees), dec = -45.23435 (degrees) in epoch J2000.0 measurements.  It has a proper motion of -1.2 "/yr in right ascension and +0.35 "/yr in declination.  Write a program to print the right ascension and declination of the object when WISE looks at it in April of 2009?
-::* Write a script to calculate and print when this object cross the declination line at 44.?
+::* Write a script to calculate and print when this object cross the declination line at -45.00000?