def make_completeness_table(loga_mag_file, matchup_files, filt_names=None):
"""
Read in the output of KS2 (post processed with xym2mat and xym2bar)
and match it up with the input planted stars.
Input
---------
loga_mag_file : string
The name of the LOGA_MAGS.INPUT.fits file (produced by remake_loga_input()
matchup_files : list
A list of matchup files that corresponds to the filters in the LOGA file.
The matchup files are assumed to be in the same order as the LOGA magnitude
columns.
"""
# Read files
loga = atpy.Table(loga_mag_file)
mat = [starlists.read_matchup(mat_file) for mat_file in matchup_files]
# Figure out the number of filters... make sure the match in input/output
num_filt = len(matchup_files)
num_filt2 = len(loga.columns) - 3
if num_filt != num_filt2:
print('Filter mismatch: {0} in input, {1} in output'.format())
return
# First modify the column names in loga to reflect that these are
# input values
loga.rename_column('x', 'x_in')
loga.rename_column('y', 'y_in')
for ff in range(num_filt):
print('Processing Filter #{0}'.format(ff+1))
if filt_names != None:
filt = '_{0}'.format(filt_names[ff])
else:
filt = '_{0}'.format(ff+1)
# Rename the input magnitude columns
old_col_name = 'm{0}'.format(ff+1)
new_col_name = 'm_in' + filt
loga.rename_column(old_col_name, new_col_name)
# Add the new columns to the table for all of the output data.
loga.add_column('x_out' + filt, mat[ff].x)
loga.add_column('y_out' + filt, mat[ff].y)
loga.add_column('m_out' + filt, mat[ff].m)
loga.add_column('xe_out' + filt, mat[ff].xe)
loga.add_column('ye_out' + filt, mat[ff].ye)
loga.add_column('me_out' + filt, mat[ff].me)
loga.table_name = ''
outfile_name = os.path.dirname(loga_mag_file) + 'completeness_matched.fits'
loga.write(outfile_name)
return loga
def make_completeness_table(loga_mag_file, matchup_files, filt_names=None):
"""
Read in the output of KS2 (post processed with xym2mat and xym2bar)
and match it up with the input planted stars.
Input
---------
loga_mag_file : string
The name of the LOGA_MAGS.INPUT.fits file (produced by remake_loga_input()
matchup_files : list
A list of matchup files that corresponds to the filters in the LOGA file.
The matchup files are assumed to be in the same order as the LOGA magnitude
columns.
"""
# Read files
loga = atpy.Table(loga_mag_file)
mat = [starlists.read_matchup(mat_file) for mat_file in matchup_files]
# Figure out the number of filters... make sure the match in input/output
num_filt = len(matchup_files)
num_filt2 = len(loga.columns) - 3
if num_filt != num_filt2:
print('Filter mismatch: {0} in input, {1} in output'.format())
return
# First modify the column names in loga to reflect that these are
# input values
loga.rename_column('x', 'x_in')
loga.rename_column('y', 'y_in')
for ff in range(num_filt):
print('Processing Filter #{0}'.format(ff + 1))
if filt_names != None:
filt = '_{0}'.format(filt_names[ff])
else:
filt = '_{0}'.format(ff + 1)
# Rename the input magnitude columns
old_col_name = 'm{0}'.format(ff + 1)
new_col_name = 'm_in' + filt
loga.rename_column(old_col_name, new_col_name)
# Add the new columns to the table for all of the output data.
loga.add_column('x_out' + filt, mat[ff].x)
loga.add_column('y_out' + filt, mat[ff].y)
loga.add_column('m_out' + filt, mat[ff].m)
loga.add_column('xe_out' + filt, mat[ff].xe)
loga.add_column('ye_out' + filt, mat[ff].ye)
loga.add_column('me_out' + filt, mat[ff].me)
loga.table_name = ''
outfile_name = os.path.dirname(loga_mag_file) + 'completeness_matched.fits'
loga.write(outfile_name)
return loga
def combine_in_out_ks2(ks2_input_file, matchup_files, suffixes=None):
"""
Read in a LOGA.INPUT file and the corresponding MATCHUP.XYMEEE files
and cross-match them. They should already be the same length and the in same
order.
Inputs
------
ks2_input_file -- the LOGA.INPUT file
matchup_files -- a list of MATCHUP.XYMEEE files
Optional Inputs
---------------
suffixes -- a list (same length as matchup_files)
"""
final = atpy.Table()
final.table_name = ''
# Read in the input ks2 file
inp = atpy.Table('LOGA.INPUT', type='ascii')
final.add_column('name', inp.col17)
final.add_column('x_in', inp.col1)
final.add_column('y_in', inp.col2)
for ff in range(len(matchup_files)):
if suffixes == None:
suf = '_{0}'.format(ff + 1)
else:
suf = '_' + suffixes[ff]
f_in = 'col{0}'.format(18 + 4 * ff)
m_in = -2.5 * np.log10(inp[f_in])
final.add_column('m_in' + suf, m_in)
match = starlists.read_matchup(matchup_files[ff])
if len(match) != len(final):
print 'Problem reading ' + matchup_files[
ff] + ': incorrect file length'
final.add_column('x_out' + suf, match.x)
final.add_column('y_out' + suf, match.y)
final.add_column('m_out' + suf, match.m)
final.add_column('xe_out' + suf, match.xe)
final.add_column('ye_out' + suf, match.ye)
final.add_column('me_out' + suf, match.me)
final.write('ks2_in_out_catalog.fits', overwrite=True)
def combine_in_out_ks2(ks2_input_file, matchup_files, suffixes=None):
"""
Read in a LOGA.INPUT file and the corresponding MATCHUP.XYMEEE files
and cross-match them. They should already be the same length and the in same
order.
Inputs
------
ks2_input_file -- the LOGA.INPUT file
matchup_files -- a list of MATCHUP.XYMEEE files
Optional Inputs
---------------
suffixes -- a list (same length as matchup_files)
"""
final = atpy.Table()
final.table_name = ""
# Read in the input ks2 file
inp = atpy.Table("LOGA.INPUT", type="ascii")
final.add_column("name", inp.col17)
final.add_column("x_in", inp.col1)
final.add_column("y_in", inp.col2)
for ff in range(len(matchup_files)):
if suffixes == None:
suf = "_{0}".format(ff + 1)
else:
suf = "_" + suffixes[ff]
f_in = "col{0}".format(18 + 4 * ff)
m_in = -2.5 * np.log10(inp[f_in])
final.add_column("m_in" + suf, m_in)
match = starlists.read_matchup(matchup_files[ff])
if len(match) != len(final):
print "Problem reading " + matchup_files[ff] + ": incorrect file length"
final.add_column("x_out" + suf, match.x)
final.add_column("y_out" + suf, match.y)
final.add_column("m_out" + suf, match.m)
final.add_column("xe_out" + suf, match.xe)
final.add_column("ye_out" + suf, match.ye)
final.add_column("me_out" + suf, match.me)
final.write("ks2_in_out_catalog.fits", overwrite=True)
def plot_vpd_across_field(nside=4, interact=False):
"""
Plot the VPD at different field positions so we can see if there are
systematic discrepancies due to residual distortions.
"""
# Read in matched and aligned star lists from the *.ref5 analysis.
# Recall these data sets are in the F814W reference frame with a 50 mas plate scale.
t2005 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F814W.ref5')
t2010 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F125W.ref5')
scale = 50.0 # mas per pixel
# Trim down to only those stars that are detected in both epochs.
# Also make cuts on astrometric/photometric errors, etc.
# We only want the well measured stars in this analysis.
perrLim814 = 1.0 / scale
perrLim125 = 4.0 / scale
merrLim814 = 0.05
merrLim125 = 0.1
cond = ((t2005.m != 0) & (t2010.m != 0) & (t2005.xe < perrLim814) &
(t2005.ye < perrLim814) & (t2010.xe < perrLim125) &
(t2010.ye < perrLim125) & (t2005.me < merrLim814) &
(t2010.me < merrLim125))
t2005 = t2005.where(cond)
t2010 = t2010.where(cond)
# Calculate proper motions
dt = years['2010_F125W'] - years['2005_F814W']
dx = t2010.x - t2005.x
dy = t2010.y - t2005.y
pmx = dx * scale / dt
pmy = dy * scale / dt
pm = np.hypot(pmx, pmy)
t2005.add_column('pmx', pmx)
t2005.add_column('pmy', pmy)
t2005.add_column('pm', pm)
# Divide up the region into N x N boxes and plot up the VPD for each.
xlo = math.floor(t2005.x.min())
xhi = math.ceil(t2005.x.max())
ylo = math.floor(t2005.y.min())
yhi = math.ceil(t2005.y.max())
xboxsize = round((xhi - xlo) / nside)
yboxsize = round((yhi - ylo) / nside)
# Setup colors
jet = py.get_cmap('jet')
cNorm = colors.Normalize(vmin=0, vmax=nside**2)
colorMap = py.cm.ScalarMappable(norm=cNorm, cmap=jet)
# Save the average proper motions in each box
pmx = np.zeros((nside, nside), dtype=float)
pmy = np.zeros((nside, nside), dtype=float)
pmxe = np.zeros((nside, nside), dtype=float)
pmye = np.zeros((nside, nside), dtype=float)
xcen = np.zeros((nside, nside), dtype=float)
ycen = np.zeros((nside, nside), dtype=float)
pmCut = 1.0
# Calculate the global mean proper motion
# Start by trimming down to a 1 mas/yr radius
idx2 = np.where(pm < pmCut)[0]
pmx_all = np.median(t2005.pmx[idx2])
pmy_all = np.median(t2005.pmy[idx2])
out = 'All X:{0:5.0f}-{1:5.0f} Y:{2:5.0f}-{3:5.0f} '
out += 'PMX:{4:5.2f} +/- {5:5.2f} PMY:{6:5.2f} +/- {7:5.2f} '
out += 'N:{8:5d}'
print((out.format(xlo, xhi, ylo, yhi, pmx_all, 0.0, pmy_all, 0.0,
len(idx2))))
# Make a global proper motion diagram of star with a proper motion within
# 1 mas/yr. This is mainly to see systematic flows due to residual distortion.
pmTot = np.hypot(t2005.pmx, t2005.pmy)
clust = np.where(pmTot < pmCut)[0]
py.clf()
q = py.quiver(t2005.x[clust],
t2005.y[clust],
t2005.pmx[clust],
t2005.pmy[clust],
scale=18)
py.quiverkey(q, 0.5, 0.98, 1, '1 mas/yr', color='red', labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
out = '{0}/plots/vec_proper_motion_all.png'
py.savefig(out.format(workDir))
py.clf()
for xx in range(nside):
for yy in range(nside):
xlo_box = xlo + xx * xboxsize
ylo_box = ylo + yy * yboxsize
xhi_box = xlo + (1 + xx) * xboxsize
yhi_box = ylo + (1 + yy) * yboxsize
idx = np.where((t2005.x > xlo_box) & (t2005.x <= xhi_box)
& (t2005.y > ylo_box) & (t2005.y <= yhi_box))[0]
if interact:
color = colorMap.to_rgba(yy + xx * nside)
lim = 5
py.plot(t2005.pmx[idx],
t2005.pmy[idx],
'k.',
ms=2,
color=color)
py.axis([-lim, lim, -lim, lim])
py.xlabel('X Proper Motion (mas/yr)')
py.ylabel('Y Proper Motion (mas/yr)')
# Lets get the mean and std-dev (iterative) for the box.
# Start by trimming down to a 1 mas/yr circle.
idx2 = np.where(t2005.pm[idx] < pmCut)[0]
xmean = np.median(t2005.pmx[idx][idx2])
ymean = np.median(t2005.pmy[idx][idx2])
xstd = t2005.pmx[idx][idx2].std()
ystd = t2005.pmy[idx][idx2].std()
xmean_err = xstd / np.sqrt(len(idx2))
ymean_err = ystd / np.sqrt(len(idx2))
xcen[xx, yy] = xlo_box + (xboxsize / 2.0)
ycen[xx, yy] = ylo_box + (yboxsize / 2.0)
pmx[xx, yy] = xmean - pmx_all
pmy[xx, yy] = ymean - pmx_all
pmxe[xx, yy] = xmean_err
pmye[xx, yy] = ymean_err
out = 'Box X:{0:5.0f}-{1:5.0f} Y:{2:5.0f}-{3:5.0f} '
out += 'PMX:{4:5.2f} +/- {5:5.2f} PMY:{6:5.2f} +/- {7:5.2f} '
out += 'N:{8:5d} '
if interact:
out += 'Continue?'
input(
out.format(xlo_box, xhi_box, ylo_box, yhi_box, xmean,
xmean_err, ymean, ymean_err, len(idx2)))
else:
print((out.format(xlo_box, xhi_box, ylo_box, yhi_box, xmean,
xmean_err, ymean, ymean_err, len(idx2))))
if interact:
out = '{0}/plots/vpd_grid_nside{1}.png'
py.savefig(out.format(workDir, nside))
py.clf()
q = py.quiver(xcen, ycen, pmx, pmy)
py.quiverkey(q,
0.5,
0.98,
0.1,
'0.1 mas/yr',
color='red',
labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
for xx in range(nside + 1):
py.axvline(xlo + xx * xboxsize, linestyle='--', color='grey')
for yy in range(nside + 1):
py.axhline(ylo + yy * yboxsize, linestyle='--', color='grey')
out = '{0}/plots/vec_proper_motion_grid_nside{1}.png'
py.savefig(out.format(workDir, nside))
py.clf()
q = py.quiver(xcen, ycen, pmx / pmxe, pmy / pmye)
py.quiverkey(q, 0.5, 0.98, 3, '3 sigma', color='red', labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
for xx in range(nside + 1):
py.axvline(xlo + xx * xboxsize, linestyle='--', color='grey')
for yy in range(nside + 1):
py.axhline(ylo + yy * yboxsize, linestyle='--', color='grey')
out = '{0}/plots/vec_proper_motion_grid_sig_nside{1}.png'
py.savefig(out.format(workDir, nside))
def make_master_lists():
"""
Trim the ref5 master lists for each filter down to just stars with
proper motions within 1 mas/yr of the cluster motion.
"""
# Read in matched and aligned star lists from the *.ref5 analysis.
# Recall these data sets are in the F814W reference frame with a 50 mas plate scale.
t2005_814 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F814W.ref5')
t2010_125 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F125W.ref5')
t2010_139 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F139M.ref5')
t2010_160 = starlists.read_matchup(workDir +
'02.PMA/MATCHUP.XYMEEE.F160W.ref5')
scale = 50.0 # mas per pixel
# Trim down to only those stars that are detected in both epochs.
# Also make cuts on astrometric/photometric errors, etc.
# We only want the well measured stars in this analysis.
perrLim814 = 1.0 / scale
perrLim125 = 4.0 / scale
merrLim814 = 0.05
merrLim125 = 0.1
cond = ((t2005_814.m != 0) & (t2010_125.m != 0) & (t2010_139.m != 0) &
(t2010_160.m != 0) & (t2005_814.xe < perrLim814) &
(t2005_814.ye < perrLim814) & (t2010_125.xe < perrLim125) &
(t2010_125.ye < perrLim125) & (t2010_139.xe < perrLim125) &
(t2010_139.ye < perrLim125) & (t2010_160.xe < perrLim125) &
(t2010_160.ye < perrLim125) & (t2005_814.me < merrLim814) &
(t2010_125.me < merrLim125) & (t2010_139.me < merrLim125) &
(t2010_160.me < merrLim125))
t2005_814 = t2005_814.where(cond)
t2010_125 = t2010_125.where(cond)
t2010_139 = t2010_139.where(cond)
t2010_160 = t2010_160.where(cond)
# Calculate proper motions
dt = years['2010_F125W'] - years['2005_F814W']
dx = t2010_125.x - t2005_814.x
dy = t2010_125.y - t2005_814.y
pmx = dx * scale / dt
pmy = dy * scale / dt
pm = np.hypot(pmx, pmy)
t2005_814.add_column('pmx', pmx)
t2005_814.add_column('pmy', pmy)
t2005_814.add_column('pm', pm)
# Trim down to a 1 mas/yr radius
pmCut = 1.0
idx2 = np.where(pm < pmCut)[0]
t2005_814 = t2005_814.where(idx2)
t2010_125 = t2010_125.where(idx2)
t2010_139 = t2010_139.where(idx2)
t2010_160 = t2010_160.where(idx2)
_o814 = open(workDir + '02.PMA/MASTER.F814W.ref5', 'w')
_o125 = open(workDir + '02.PMA/MASTER.F125W.ref5', 'w')
_o139 = open(workDir + '02.PMA/MASTER.F139M.ref5', 'w')
_o160 = open(workDir + '02.PMA/MASTER.F160W.ref5', 'w')
ofmt = '{0:10.4f} {1:10.4f} {2:8.4f} {3:10.4f} {4:10.4f} {5:8.4f} {6}\n'
for ii in range(len(t2005_814)):
_o814.write(
ofmt.format(t2005_814.x[ii], t2005_814.y[ii], t2005_814.m[ii],
t2005_814.xe[ii], t2005_814.ye[ii], t2005_814.me[ii],
t2005_814.name[ii]))
_o125.write(
ofmt.format(t2010_125.x[ii], t2010_125.y[ii], t2010_125.m[ii],
t2010_125.xe[ii], t2010_125.ye[ii], t2010_125.me[ii],
t2010_125.name[ii]))
_o139.write(
ofmt.format(t2010_139.x[ii], t2010_139.y[ii], t2010_139.m[ii],
t2010_139.xe[ii], t2010_139.ye[ii], t2010_139.me[ii],
t2010_139.name[ii]))
_o160.write(
ofmt.format(t2010_160.x[ii], t2010_160.y[ii], t2010_160.m[ii],
t2010_160.xe[ii], t2010_160.ye[ii], t2010_160.me[ii],
t2010_160.name[ii]))
_o814.close()
_o125.close()
_o139.close()
_o160.close()
def make_residuals_table_year_pos(year, filt, pos):
year = str(year)
dir_xym = year + '_' + filt + '_' + pos + '/01.XYM/'
# Read in the matchup file with the final positions and errors.
stars = starlists.read_matchup(dir_xym + 'MATCHUP.XYMEEE.ref1')
# For each image, read in the raw pixel coordinates, the transformed
# coordinates, and the residual offsets.
N_images = len(imgs[year][filt][pos])
N_stars = len(stars)
xraw = np.zeros([N_images, N_stars])
yraw = np.zeros([N_images, N_stars])
mraw = np.zeros([N_images, N_stars])
xt = np.zeros([N_images, N_stars])
yt = np.zeros([N_images, N_stars])
mt = np.zeros([N_images, N_stars])
dx = np.zeros([N_images, N_stars])
dy = np.zeros([N_images, N_stars])
for nn in range(N_images):
print 'nn = ', nn
dat = ascii.read('{0:s}LNK.{1:03d}'.format(dir_xym, nn+1))
xt[nn, :] = dat['col1']
yt[nn, :] = dat['col2']
mt[nn, :] = dat['col3']
xraw[nn, :] = dat['col4']
yraw[nn, :] = dat['col5']
mraw[nn, :] = dat['col6']
dx[nn, :] = dat['col7']
dy[nn, :] = dat['col8']
idx = np.where((stars['m']>-11) & (stars['m']<-6) &
(stars['xe']<0.05) & (stars['ye']<0.05) &
(stars['me']<0.1))[0]
stars = stars[idx]
xraw = xraw[:, idx]
yraw = yraw[:, idx]
mraw = mraw[:, idx]
xt = xt[:, idx]
yt = yt[:, idx]
mt = mt[:, idx]
dx = dx[:, idx]
dy = dy[:, idx]
xmean = xt.mean(axis=0)
ymean = yt.mean(axis=0)
mmean = mt.mean(axis=0)
xstd = xt.std(axis=0)
ystd = yt.std(axis=0)
mstd = mt.std(axis=0)
_out = open(dir_xym + 'resid_all_images.pickle', 'w')
pickle.dump(stars, _out)
pickle.dump(xmean, _out)
pickle.dump(ymean, _out)
pickle.dump(mmean, _out)
pickle.dump(xstd, _out)
pickle.dump(ystd, _out)
pickle.dump(mstd, _out)
pickle.dump(xraw, _out)
pickle.dump(yraw, _out)
pickle.dump(mraw, _out)
pickle.dump(xt, _out)
pickle.dump(yt, _out)
pickle.dump(mt, _out)
pickle.dump(dx, _out)
pickle.dump(dy, _out)
_out.close()
def make_residuals_table_year_2pos(year, filt, pos1, pos2):
year = str(year)
dir_xym = year + '_' + filt + '/01.XYM/'
# Read in the matchup file with the final positions and errors.
stars = starlists.read_matchup(dir_xym + 'MATCHUP.XYMEEE.ref4')
# For each image, read in the raw pixel coordinates, the transformed
# coordinates, and the residual offsets.
N_images = len(imgs[year][filt][pos1])
N_stars = len(stars)
pos1_idx = get_file_indices(year, filt, pos1)
pos2_idx = get_file_indices(year, filt, pos2)
pos_idx = np.array([pos1_idx, pos2_idx])
xraw = np.zeros([2, N_images, N_stars])
yraw = np.zeros([2, N_images, N_stars])
mraw = np.zeros([2, N_images, N_stars])
xt = np.zeros([2, N_images, N_stars])
yt = np.zeros([2, N_images, N_stars])
mt = np.zeros([2, N_images, N_stars])
dx = np.zeros([2, N_images, N_stars])
dy = np.zeros([2, N_images, N_stars])
detected = np.zeros([2, N_images, N_stars], dtype=bool)
# Loop through images at each position
for nn in range(N_images):
# Loop through 2 different positions.
for ii in range(2):
print 'nn = ', nn, 'ii = ', ii
dat = ascii.read('{0:s}LNK.{1:03d}'.format(dir_xym, pos_idx[ii, nn]))
xt[ii, nn, :] = dat['col1'].data
yt[ii, nn, :] = dat['col2'].data
mt[ii, nn, :] = dat['col3'].data
xraw[ii, nn, :] = dat['col4'].data
yraw[ii, nn, :] = dat['col5'].data
mraw[ii, nn, :] = dat['col6'].data
dx[ii, nn, :] = dat['col7'].data
dy[ii, nn, :] = dat['col8'].data
idx = np.where(dat['col3'].data != 0)[0]
detected[ii, nn, idx] = True
# Trim the data down to those stars detected in ALL
# the images (the overlaps) at these two positions.
det_Nimg = detected.sum(axis=1).sum(axis=0)
idx = np.where(det_Nimg == (2*N_images))[0]
print 'Trim 1', len(idx)
xt = xt[:, :, idx]
yt = yt[:, :, idx]
mt = mt[:, :, idx]
xraw = xraw[:, :, idx]
yraw = yraw[:, :, idx]
mraw = mraw[:, :, idx]
dx = dx[:, :, idx]
dy = dy[:, :, idx]
detected = detected[:, :, idx]
stars = stars[idx]
# Also trim on some quality metrics.
idx2 = np.where((stars['m']>-11) & (stars['m']<-6) &
(stars['xe']<0.05) & (stars['ye']<0.05) &
(stars['me']<0.1))[0]
print 'Trim 1', len(idx2)
stars = stars[idx2]
xraw = xraw[:, :, idx2]
yraw = yraw[:, :, idx2]
mraw = mraw[:, :, idx2]
xt = xt[:, :, idx2]
yt = yt[:, :, idx2]
mt = mt[:, :, idx2]
dx = dx[:, :, idx2]
dy = dy[:, :, idx2]
xmean_p = xt.mean(axis=1)
ymean_p = yt.mean(axis=1)
mmean_p = mt.mean(axis=1)
xstd_p = xt.std(axis=1)
ystd_p = yt.std(axis=1)
mstd_p = mt.std(axis=1)
xmean = xmean_p.mean(axis=0)
ymean = ymean_p.mean(axis=0)
mmean = mmean_p.mean(axis=0)
_out = open(dir_xym + 'resid_' + pos1 + '_' + pos2 + '.pickle', 'w')
pickle.dump(stars, _out)
pickle.dump(xmean, _out)
pickle.dump(ymean, _out)
pickle.dump(mmean, _out)
pickle.dump(xmean_p, _out)
pickle.dump(ymean_p, _out)
pickle.dump(mmean_p, _out)
pickle.dump(xstd_p, _out)
pickle.dump(ystd_p, _out)
pickle.dump(mstd_p, _out)
pickle.dump(xraw, _out)
pickle.dump(yraw, _out)
pickle.dump(mraw, _out)
pickle.dump(xt, _out)
pickle.dump(yt, _out)
pickle.dump(mt, _out)
pickle.dump(dx, _out)
pickle.dump(dy, _out)
_out.close()
def plot_vpd_across_field(nside=4, interact=False):
"""
Plot the VPD at different field positions so we can see if there are
systematic discrepancies due to residual distortions.
"""
# Read in matched and aligned star lists from the *.ref5 analysis.
# Recall these data sets are in the F814W reference frame with a 50 mas plate scale.
t2005 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F814W.ref5')
t2010 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F125W.ref5')
scale = 50.0 # mas per pixel
# Trim down to only those stars that are detected in both epochs.
# Also make cuts on astrometric/photometric errors, etc.
# We only want the well measured stars in this analysis.
perrLim814 = 1.0 / scale
perrLim125 = 4.0 / scale
merrLim814 = 0.05
merrLim125 = 0.1
cond = ((t2005.m != 0) & (t2010.m != 0) &
(t2005.xe < perrLim814) & (t2005.ye < perrLim814) &
(t2010.xe < perrLim125) & (t2010.ye < perrLim125) &
(t2005.me < merrLim814) & (t2010.me < merrLim125))
t2005 = t2005.where(cond)
t2010 = t2010.where(cond)
# Calculate proper motions
dt = years['2010_F125W'] - years['2005_F814W']
dx = t2010.x - t2005.x
dy = t2010.y - t2005.y
pmx = dx * scale / dt
pmy = dy * scale / dt
pm = np.hypot(pmx, pmy)
t2005.add_column('pmx', pmx)
t2005.add_column('pmy', pmy)
t2005.add_column('pm', pm)
# Divide up the region into N x N boxes and plot up the VPD for each.
xlo = math.floor(t2005.x.min())
xhi = math.ceil(t2005.x.max())
ylo = math.floor(t2005.y.min())
yhi = math.ceil(t2005.y.max())
xboxsize = round((xhi - xlo) / nside)
yboxsize = round((yhi - ylo) / nside)
# Setup colors
jet = py.get_cmap('jet')
cNorm = colors.Normalize(vmin=0, vmax=nside**2)
colorMap = py.cm.ScalarMappable(norm=cNorm, cmap=jet)
# Save the average proper motions in each box
pmx = np.zeros((nside, nside), dtype=float)
pmy = np.zeros((nside, nside), dtype=float)
pmxe = np.zeros((nside, nside), dtype=float)
pmye = np.zeros((nside, nside), dtype=float)
xcen = np.zeros((nside, nside), dtype=float)
ycen = np.zeros((nside, nside), dtype=float)
pmCut = 1.0
# Calculate the global mean proper motion
# Start by trimming down to a 1 mas/yr radius
idx2 = np.where(pm < pmCut)[0]
pmx_all = np.median( t2005.pmx[idx2] )
pmy_all = np.median( t2005.pmy[idx2] )
out = 'All X:{0:5.0f}-{1:5.0f} Y:{2:5.0f}-{3:5.0f} '
out += 'PMX:{4:5.2f} +/- {5:5.2f} PMY:{6:5.2f} +/- {7:5.2f} '
out += 'N:{8:5d}'
print((out.format(xlo, xhi, ylo, yhi, pmx_all, 0.0, pmy_all, 0.0, len(idx2))))
# Make a global proper motion diagram of star with a proper motion within
# 1 mas/yr. This is mainly to see systematic flows due to residual distortion.
pmTot = np.hypot(t2005.pmx, t2005.pmy)
clust = np.where(pmTot < pmCut)[0]
py.clf()
q = py.quiver(t2005.x[clust], t2005.y[clust], t2005.pmx[clust], t2005.pmy[clust],
scale=18)
py.quiverkey(q, 0.5, 0.98, 1, '1 mas/yr', color='red', labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
out = '{0}/plots/vec_proper_motion_all.png'
py.savefig(out.format(workDir))
py.clf()
for xx in range(nside):
for yy in range(nside):
xlo_box = xlo + xx * xboxsize
ylo_box = ylo + yy * yboxsize
xhi_box = xlo + (1+xx) * xboxsize
yhi_box = ylo + (1+yy) * yboxsize
idx = np.where((t2005.x > xlo_box) & (t2005.x <= xhi_box) &
(t2005.y > ylo_box) & (t2005.y <= yhi_box))[0]
if interact:
color = colorMap.to_rgba(yy + xx * nside)
lim = 5
py.plot(t2005.pmx[idx], t2005.pmy[idx], 'k.', ms=2, color=color)
py.axis([-lim, lim, -lim, lim])
py.xlabel('X Proper Motion (mas/yr)')
py.ylabel('Y Proper Motion (mas/yr)')
# Lets get the mean and std-dev (iterative) for the box.
# Start by trimming down to a 1 mas/yr circle.
idx2 = np.where(t2005.pm[idx] < pmCut)[0]
xmean = np.median( t2005.pmx[idx][idx2] )
ymean = np.median( t2005.pmy[idx][idx2] )
xstd = t2005.pmx[idx][idx2].std()
ystd = t2005.pmy[idx][idx2].std()
xmean_err = xstd / np.sqrt(len(idx2))
ymean_err = ystd / np.sqrt(len(idx2))
xcen[xx, yy] = xlo_box + (xboxsize / 2.0)
ycen[xx, yy] = ylo_box + (yboxsize / 2.0)
pmx[xx, yy] = xmean - pmx_all
pmy[xx, yy] = ymean - pmx_all
pmxe[xx, yy] = xmean_err
pmye[xx, yy] = ymean_err
out = 'Box X:{0:5.0f}-{1:5.0f} Y:{2:5.0f}-{3:5.0f} '
out += 'PMX:{4:5.2f} +/- {5:5.2f} PMY:{6:5.2f} +/- {7:5.2f} '
out += 'N:{8:5d} '
if interact:
out += 'Continue?'
input(out.format(xlo_box, xhi_box, ylo_box, yhi_box,
xmean, xmean_err, ymean, ymean_err, len(idx2)))
else:
print((out.format(xlo_box, xhi_box, ylo_box, yhi_box,
xmean, xmean_err, ymean, ymean_err, len(idx2))))
if interact:
out = '{0}/plots/vpd_grid_nside{1}.png'
py.savefig(out.format(workDir, nside))
py.clf()
q = py.quiver(xcen, ycen, pmx, pmy)
py.quiverkey(q, 0.5, 0.98, 0.1, '0.1 mas/yr', color='red', labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
for xx in range(nside+1):
py.axvline(xlo + xx * xboxsize, linestyle='--', color='grey')
for yy in range(nside+1):
py.axhline(ylo + yy * yboxsize, linestyle='--', color='grey')
out = '{0}/plots/vec_proper_motion_grid_nside{1}.png'
py.savefig(out.format(workDir, nside))
py.clf()
q = py.quiver(xcen, ycen, pmx/pmxe, pmy/pmye)
py.quiverkey(q, 0.5, 0.98, 3, '3 sigma', color='red', labelcolor='red')
py.xlabel('X Position (pixels)')
py.ylabel('Y Position (pixels)')
py.xlim(xlo, xhi)
py.ylim(ylo, yhi)
for xx in range(nside+1):
py.axvline(xlo + xx * xboxsize, linestyle='--', color='grey')
for yy in range(nside+1):
py.axhline(ylo + yy * yboxsize, linestyle='--', color='grey')
out = '{0}/plots/vec_proper_motion_grid_sig_nside{1}.png'
py.savefig(out.format(workDir, nside))
def make_master_lists():
"""
Trim the ref5 master lists for each filter down to just stars with
proper motions within 1 mas/yr of the cluster motion.
"""
# Read in matched and aligned star lists from the *.ref5 analysis.
# Recall these data sets are in the F814W reference frame with a 50 mas plate scale.
t2005_814 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F814W.ref5')
t2010_125 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F125W.ref5')
t2010_139 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F139M.ref5')
t2010_160 = starlists.read_matchup(workDir + '02.PMA/MATCHUP.XYMEEE.F160W.ref5')
scale = 50.0 # mas per pixel
# Trim down to only those stars that are detected in both epochs.
# Also make cuts on astrometric/photometric errors, etc.
# We only want the well measured stars in this analysis.
perrLim814 = 1.0 / scale
perrLim125 = 4.0 / scale
merrLim814 = 0.05
merrLim125 = 0.1
cond = ((t2005_814.m != 0) & (t2010_125.m != 0) &
(t2010_139.m != 0) & (t2010_160.m != 0) &
(t2005_814.xe < perrLim814) & (t2005_814.ye < perrLim814) &
(t2010_125.xe < perrLim125) & (t2010_125.ye < perrLim125) &
(t2010_139.xe < perrLim125) & (t2010_139.ye < perrLim125) &
(t2010_160.xe < perrLim125) & (t2010_160.ye < perrLim125) &
(t2005_814.me < merrLim814) & (t2010_125.me < merrLim125) &
(t2010_139.me < merrLim125) & (t2010_160.me < merrLim125))
t2005_814 = t2005_814.where(cond)
t2010_125 = t2010_125.where(cond)
t2010_139 = t2010_139.where(cond)
t2010_160 = t2010_160.where(cond)
# Calculate proper motions
dt = years['2010_F125W'] - years['2005_F814W']
dx = t2010_125.x - t2005_814.x
dy = t2010_125.y - t2005_814.y
pmx = dx * scale / dt
pmy = dy * scale / dt
pm = np.hypot(pmx, pmy)
t2005_814.add_column('pmx', pmx)
t2005_814.add_column('pmy', pmy)
t2005_814.add_column('pm', pm)
# Trim down to a 1 mas/yr radius
pmCut = 1.0
idx2 = np.where(pm < pmCut)[0]
t2005_814 = t2005_814.where(idx2)
t2010_125 = t2010_125.where(idx2)
t2010_139 = t2010_139.where(idx2)
t2010_160 = t2010_160.where(idx2)
_o814 = open(workDir + '02.PMA/MASTER.F814W.ref5', 'w')
_o125 = open(workDir + '02.PMA/MASTER.F125W.ref5', 'w')
_o139 = open(workDir + '02.PMA/MASTER.F139M.ref5', 'w')
_o160 = open(workDir + '02.PMA/MASTER.F160W.ref5', 'w')
ofmt = '{0:10.4f} {1:10.4f} {2:8.4f} {3:10.4f} {4:10.4f} {5:8.4f} {6}\n'
for ii in range(len(t2005_814)):
_o814.write(ofmt.format(t2005_814.x[ii], t2005_814.y[ii], t2005_814.m[ii],
t2005_814.xe[ii], t2005_814.ye[ii], t2005_814.me[ii],
t2005_814.name[ii]))
_o125.write(ofmt.format(t2010_125.x[ii], t2010_125.y[ii], t2010_125.m[ii],
t2010_125.xe[ii], t2010_125.ye[ii], t2010_125.me[ii],
t2010_125.name[ii]))
_o139.write(ofmt.format(t2010_139.x[ii], t2010_139.y[ii], t2010_139.m[ii],
t2010_139.xe[ii], t2010_139.ye[ii], t2010_139.me[ii],
t2010_139.name[ii]))
_o160.write(ofmt.format(t2010_160.x[ii], t2010_160.y[ii], t2010_160.m[ii],
t2010_160.xe[ii], t2010_160.ye[ii], t2010_160.me[ii],
t2010_160.name[ii]))
_o814.close()
_o125.close()
_o139.close()
_o160.close()
def matchup_ks2_pass1(ks2Catalog, ks2FilterIdx, matchupFile, outSuffix=None):
"""
Read in ks2 output and xym2mat files.
Matchup to search for common sources.
Return a table with all the measurements for comparison.
"""
# Load the KS2 star list
# Should be LOGR_catalo.fits produced by jlu.hst.starlists.process_ks2_output()
#ks2 = atpy.Table(ks2Root + '.FIND_AVG_UV1_F.fits')
ks2 = atpy.Table(ks2Catalog)
suffix = '_%d' % ks2FilterIdx
# Trim down the KS2 list to just stuff well-measured in the filter of interest.
keepIdx = np.where((ks2['x' + suffix] != -1000) & (ks2['m' + suffix] != 0)
& (ks2['me' + suffix] < 1))[0]
ks2 = ks2.rows(keepIdx)
pass1 = starlists.read_matchup(matchupFile)
keepIdx = np.where((pass1.x != -1000) & (pass1.m != 0) & (pass1.me < 1))[0]
pass1 = pass1.rows(keepIdx)
#####
# For each star in the matchup list (with a valid measurement), search the ks2
# data to find whether the star is measured. If it is, then compare the measurements
# and unceratinties.
#####
ks2Indices = np.zeros(len(pass1), dtype=int)
ks2Indices += -1 # -1 indicates no match
print 'Starting search for {0} stars'.format(len(pass1))
for ss in range(len(pass1)):
if ss % 5000 == 0:
print 'Reached star {0}'.format(ss)
dr = np.hypot(pass1.x[ss] - ks2['x_0'], pass1.y[ss] - ks2['y_0'])
rminIdx = dr.argmin()
if dr[rminIdx] < 1:
ks2Indices[ss] = rminIdx
# Make a new table with x, y, m, xe, ye, me First in ks2, then in pass1.
in_p1 = np.where(ks2Indices >= 0)[0]
in_ks2 = ks2Indices[in_p1]
stars = atpy.Table()
stars.add_column('x_ks2', ks2['x' + suffix][in_ks2])
stars.add_column('y_ks2', ks2['y' + suffix][in_ks2])
stars.add_column('m_ks2', ks2['m' + suffix][in_ks2])
stars.add_column('xe_ks2', ks2['xe' + suffix][in_ks2])
stars.add_column('ye_ks2', ks2['ye' + suffix][in_ks2])
stars.add_column('me_ks2', ks2['me' + suffix][in_ks2])
stars.add_column('x_pass1', pass1['x'][in_p1])
stars.add_column('y_pass1', pass1['y'][in_p1])
stars.add_column('m_pass1', pass1['m'][in_p1])
stars.add_column('xe_pass1', pass1['xe'][in_p1])
stars.add_column('ye_pass1', pass1['ye'][in_p1])
stars.add_column('me_pass1', pass1['me'][in_p1])
stars.table_name = ''
if outSuffix == None:
outSuffix = 'f{0}'.format(ksFilterIdx)
stars.write('stars_ks2_pass1_{0}.fits'.format(outSuffix), overwrite=True)
# Just for kicks, also produce a table of stars that WERE NOT in ks2.
# This table will have the same format as the pass1 list.
stars_pass1_only = pass1.where(ks2Indices == -1)
stars_pass1_only.table_name = ''
stars_pass1_only.write('stars_pass1_only_{0}.fits'.format(outSuffix),
overwrite=True)
def matchup_ks2_pass1(ks2Catalog, ks2FilterIdx, matchupFile, outSuffix=None):
"""
Read in ks2 output and xym2mat files.
Matchup to search for common sources.
Return a table with all the measurements for comparison.
"""
# Load the KS2 star list
# Should be LOGR_catalo.fits produced by jlu.hst.starlists.process_ks2_output()
#ks2 = atpy.Table(ks2Root + '.FIND_AVG_UV1_F.fits')
ks2 = atpy.Table(ks2Catalog)
suffix = '_%d' % ks2FilterIdx
# Trim down the KS2 list to just stuff well-measured in the filter of interest.
keepIdx = np.where((ks2['x'+suffix] != -1000) &
(ks2['m'+suffix] != 0) &
(ks2['me'+suffix] < 1))[0]
ks2 = ks2.rows(keepIdx)
pass1 = starlists.read_matchup(matchupFile)
keepIdx = np.where((pass1.x != -1000) &
(pass1.m != 0) &
(pass1.me < 1))[0]
pass1 = pass1.rows(keepIdx)
#####
# For each star in the matchup list (with a valid measurement), search the ks2
# data to find whether the star is measured. If it is, then compare the measurements
# and unceratinties.
#####
ks2Indices = np.zeros(len(pass1), dtype=int)
ks2Indices += -1 # -1 indicates no match
print 'Starting search for {0} stars'.format(len(pass1))
for ss in range(len(pass1)):
if ss % 5000 == 0:
print 'Reached star {0}'.format(ss)
dr = np.hypot( pass1.x[ss] - ks2['x_0'], pass1.y[ss] - ks2['y_0'] )
rminIdx = dr.argmin()
if dr[rminIdx] < 1:
ks2Indices[ss] = rminIdx
# Make a new table with x, y, m, xe, ye, me First in ks2, then in pass1.
in_p1 = np.where(ks2Indices >= 0)[0]
in_ks2 = ks2Indices[in_p1]
stars = atpy.Table()
stars.add_column('x_ks2', ks2['x'+suffix][in_ks2])
stars.add_column('y_ks2', ks2['y'+suffix][in_ks2])
stars.add_column('m_ks2', ks2['m'+suffix][in_ks2])
stars.add_column('xe_ks2', ks2['xe'+suffix][in_ks2])
stars.add_column('ye_ks2', ks2['ye'+suffix][in_ks2])
stars.add_column('me_ks2', ks2['me'+suffix][in_ks2])
stars.add_column('x_pass1', pass1['x'][in_p1])
stars.add_column('y_pass1', pass1['y'][in_p1])
stars.add_column('m_pass1', pass1['m'][in_p1])
stars.add_column('xe_pass1', pass1['xe'][in_p1])
stars.add_column('ye_pass1', pass1['ye'][in_p1])
stars.add_column('me_pass1', pass1['me'][in_p1])
stars.table_name = ''
if outSuffix == None:
outSuffix = 'f{0}'.format(ksFilterIdx)
stars.write('stars_ks2_pass1_{0}.fits'.format(outSuffix), overwrite=True)
# Just for kicks, also produce a table of stars that WERE NOT in ks2.
# This table will have the same format as the pass1 list.
stars_pass1_only = pass1.where(ks2Indices == -1)
stars_pass1_only.table_name = ''
stars_pass1_only.write('stars_pass1_only_{0}.fits'.format(outSuffix), overwrite=True)
