PESSTO Year2 - Final SOFI imaging reduction
General:
31/170 (18%) of merged SOFI images, excluding 4 images with no signal, with failed astrometry (corrected with PESSTOASTRO).
Vertical noise pattern, likely electronic in origin, in some of the merged images (~10-15%). This is a more common feature during autumn 2013. Ghosts in some of the merged images (~10-15%). Artifacts in a few of the merged images (~5%). Full details are found below.
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20130816:
SN2013ek named incorrectly as SN2103ek (J, H, Ks). Some ghosts in the Ks-band image.
20130816:
Vertical noise pattern in the merged images:
PSNJ01591443+1901339_20130816_H_merge_57049_1.fits
SN2013dn_20130816_H_merge_57049_1.fits
SN2013dn_20130816_J_merge_57049_1.fits
SN2103ek_20130816_H_merge_57049_1.fits
20130828:
Ghosts and artifacts in the merged image:
SN2013ek_20130828_J_merge_57049_1.fits
Also some ghosts in the the merged image:
SN2013ek_20130828_Ks_merge_57049_1.fits
20130828:
Vertical noise pattern in the merged image:
PSNJ01591443+1901339_20130828_H_merge_57049_1.fits
20130913:
Telescope problems and clouds reported in the night log. No signal in the merged images:
SN2013fc_20130913_H_merge_57049_1.fits
SN2013fc_20130913_J_merge_57049_1.fits
SN2013fc_20130913_Ks_merge_57049_1.fits
These are the only SOFI data obtained during the night.
20131003:
According to the night report the SN2013ej imaging OB was by mistake started a 2nd time. Final reductions include two merged J-band images of SN2013ej:
4x(2x4.0) sec J-band image SN2013ej_20131003_J_merge_57050_1.fits, and
4x(2x4.0) sec J-band image SN2013ej_20131003_J_merge_57050_2.fits.
20131003:
According to the night report the SN2013fc imaging OB was interrupted, followed by an adjustment of the exposure times. Final reductions include two merged images of SN2013fc both in H and J-band:
4x(3x12.0) sec H-band image SN2013fc_20131003_H_merge_57050_1.fits,
4x(6x15.0) sec H-band image SN2013fc_20131003_H_merge_57050_2.fits,
4x(5x20.0) sec J-band image SN2013fc_20131003_J_merge_57050_1.fits, and
4x(1x15.0) sec J-band image SN2013fc_20131003_J_merge_57050_2.fits.
Merged H-band images of SN2013fc suffer from significant ghosts and artifacts. Some ghosts from the host galaxy are also in the J and Ks-band images, however these are minor effects compared to the H-band.
20131003:
Although there is no mentioning on this in the night report, the SN2009ip imaging OB was likely repeated a second time. Therefore the files have two different observation block ID numbers (100343749 or 100343750) and are merged into two final files by the pipeline:
12x(3x30.0) sec J-band image SN2009ip_20131003_J_merge_57050_1.fits (100343750), and
13x(3x30.0) sec J-band image SN2009ip_20131003_J_merge_57050_2.fits (100343749).
20131013:
Some ghosts in the merged images:
SN2013fc_20131013_J_merge_57050_1.fits
SN2013fc_20131013_H_merge_57050_1.fits
SN2013fc_20131013_Ks_merge_57050_1.fits
Also some artifacts and vertical noise in the H-band image.
20131013:
Vertical noise pattern in the merged images:
PSNJ01591443+1901339_20131013_H_merge_57050_1.fits
PSNJ01591443+1901339_20131013_J_merge_57050_1.fits
PSNJ01591443+1901339_20131013_Ks_merge_57050_1.fits
SN2013fc_20131013_H_merge_57050_1.fits
20131014:
For the merged final image, the pipeline is not correctly aligning the K-band images of SN2012ca, which were obtained after the re-rotation of the telescope during the 9th frame of the total of 18 frames. The following images were excluded:
SOFI.2013-10-15T01:08:37.713.fits
SOFI.2013-10-15T01:10:22.678.fits
SOFI.2013-10-15T01:15:02.725.fits
SOFI.2013-10-15T01:16:47.324.fits
SOFI.2013-10-15T01:18:32.225.fits
SOFI.2013-10-15T01:20:16.917.fits
SOFI.2013-10-15T01:22:04.975.fits
SOFI.2013-10-15T01:23:49.624.fits
SOFI.2013-10-15T01:25:34.522.fits
SOFI.2013-10-15T01:27:19.125.fits
20131014:
In the Ks-band sequence of PSNJ01591443+1901339 (16 target frames and 16 separate sky frames), the last sky image (ORIGFILE sky_K_0016.fits)
SOFI.2013-10-14T08:44:59.706.fits
has a different observation block ID number (100344446), compared to all the other Ks-band files of this target (100344432). The PESSTO pipeline would not include this frame in the Ks-band reduction of PSNJ01591443+1901339 and the pipeline cannot reduce a single SOFI file. Therefore the file has not been included in the reductions.
20131014:
Vertical noise pattern in the merged images:
SN2009ip_20131014_H_merge_57050_1.fits
SN2009ip_20131014_Ks_merge_57050_1.fits
SN2013fs_20131014_H_merge_57050_1.fits
SN2013fs_20131014_J_merge_57050_1.fits
SN2013fs_20131014_Ks_merge_57050_1.fits
20131015:
Vertical noise pattern in the merged image:
PSNJ01591443+1901339_20131025_H_merge_57050_1.fits
20131025:
The J-band imaging OB of OGLE-2013-SN-079 was repeated twice. Therefore the files have different observation block ID numbers and are merged into three final files by the pipeline:
12x(3x30.0) sec J-band image OGLE-2013-SN-079_20131025_J_merge_57050_1.fits,
12x(3x30.0) sec J-band image OGLE-2013-SN-079_20131025_J_merge_57050_2.fits, and
12x(3x30.0) sec J-band image OGLE-2013-SN-079_20131025_J_merge_57050_3.fits.
20131025:
Some ghosts in the merged images:
OGLE-2013-SN-079_20131025_J_merge_57050_1.fits
OGLE-2013-SN-079_20131025_J_merge_57050_2.fits
OGLE-2013-SN-079_20131025_J_merge_57050_3.fits
20131102:
According to the night log, during the 2nd set of Ks-band images of SN2013fc the telescope guide probe got stuck while offsetting and only 5/8 OFF sky frames were obtained (full 8/8 ON frames). Reduction was carried out using all the available frames.
20131102:
Ghosts and artifacts in the merged images:
SN2012ca_20131102_H_merge_57050_1.fits
SN2012ca_20131102_J_merge_57050_1.fits
20131102:
Some ghosts in the merged image:
SN2013ek_20131102_J_merge_57050_1.fits
20131102:
Vertical noise pattern in the merged images:
SN2012ca_20131102_J_merge_57050_1.fits
SN2013fc_20131102_H_merge_57050_1.fits
20131112:
Vertical noise pattern in the merged image:
SN2013fc_20131112_H_merge_57050_1.fits
20131209:
Significant ghosts and artifacts in the merged image:
SN2013fc_20131209_H_merge_57050_1.fits
Some ghosts also in the merged images:
SN2013fc_20131209_J_merge_57050_1.fits
SN2013fc_20131209_Ks_merge_57050_1.fits
20140206:
PESSTOSOFIPHOT derives a ZP for the merged J-band image of SN2012ec (PHOTZP = 25.21606666666666), however the WCS is not correct (ASTROMET = 2.87 5.32 5). Astrometry was derived for the image SN2012ec_20140206_J_merge_57050_1.fits with PESSTOASTRO. PHOTZP is still likely incorrect in the merged images of SN2012ec
SN2012ec_20140206_H_merge_57050_1.fits
SN2012ec_20140206_J_merge_57050_1.fits
SN2012ec_20140206_Ks_merge_57050_1.fits
due to the extended host galaxy dominating the 2MASS sources in the field.
20140301:
Vertical noise pattern in the merged image:
LSQ13ddu_20140301_J_merge_57050_1.fits
20140423:
According to the night report some extra imaging of CSS140421-142042+031602 was obtained. The pipeline merged the images into the following files:
8x(6x15.0) sec H-band image CSS140421-142042+031602_20140423_H_merge_57051_1.fits,
2x(6x15.0) sec H-band image CSS140421-142042+031602_20140423_H_merge_57051_2.fits,
8x(5x25.0) sec J-band image CSS140421-142042+031602_20140423_J_merge_57051_1.fits,
2x(5x25.0) sec J-band image CSS140421-142042+031602_20140423_J_merge_57051_2.fits,
20x(9x10.0) sec Ks-band image CSS140421-142042+031602_20140423_Ks_merge_57051_1.fits, and
8x(9x10.0) sec Ks-band image CSS140421-142042+031602_20140423_Ks_merge_57051_2.fits.
20140430:
Clouds reported in the night log. No signal in the merged image:
CSS140421-142042+031602_20140430_J_merge_57051_1.fits
This is the only SOFI data obtained during the night.
20140504:
Some ghosts in the merged images:
CSS140424-133007-212728_20140504_J_merge_57051_1.fits
CSS140424-133007-212728_20140504_Ks_merge_57051_1.fits
20140506:
The 9 J-band target exposures of CSS140424-133007-212728 were likely obtained with a random dither pattern. However, the pipeline interprets the files as ON and OFF images of which 4 were used as ON and 4 OFF sky frames for the merged image:
CSS140424-133007-212728_20140506_J_merge_57051_1.fits