| DATA_SET_DESCRIPTION |
Data Set Overview
=================
At the ESO La Silla site is a direct imaging facility (DIFA) at the
A Nasmyth focus of the NTT, in front of the image derotator which
feeds the IRSPEC infrared spectrograph. Two remotely-controlled
45-degree mirrors can be inserted in the light beam to deviate the
telescope beam either to a CCD camera (SUSI) or to an infrared
array. In the configuration which has been implemented, SUSI is
equipped with a Tektronix 1024**2 CCD with high quantum efficiency
from the UV to the near infrared. The CCD pixel size corresponds to
0.13 arcsec in the focal plane of the NTT. A filter wheel and a
shutter are located in front of the CCD.
Processing
==========
The authorship for the SUSI data is PI: Rita Schulz, CoIs: Therese
Encrenaz, Joachim Steuwe, and Gunther Wiedemann. The images were
taken during the impact week and show the disk of Jupiter through
several filters. All the images have been bias subtracted and
flatfielded. No other calibrations have been applied.
SuSI Observation Log
--------------------
File # | Date | UT | Filter | Tau exp/s | Airmass
-----------------------------------------------------------------------
part0131| 1994-07-23 | 23:49:24 | CH4 | 10.09 | 1.0760
part0133| 1994-07-23 | 23:55:23 | 6822 A cont | 0.26 | 1.0827
part0134| 1994-07-23 | 23:57:51 | H alpha | 1.09 | 1.0858
part0135| 1994-07-24 | 00:00:40 | H alpha | 0.56 | 1.0894
part0136| 1994-07-24 | 00:03:08 | H alpha cont | 0.56 | 1.0928
part0137| 1994-07-24 | 00:06:13 | CO+ 4247 A | 1.08 | 1.0971
part0138| 1994-07-24 | 00:09:14 | CN 3877 A | 1.09 | 1.1015
part0139| 1994-07-24 | 00:11:45 | CN 3877 A | 1.09 | 1.1054
part0140| 1994-07-24 | 00:14:57 | CN 3877 A | 20.09 | 1.1108
part0141| 1994-07-24 | 00:18:28 | 5210 A cont | 0.25 | 1.1164
part0154| 1994-07-24 | 02:37:16 | CH4 | 10.09 | 1.7411
part0155| 1994-07-24 | 02:40:09 | 6822 A cont | 0.25 | 1.7680
part0156| 1994-07-24 | 02:42:38 | H alpha | 0.56 | 1.7927
part0157| 1994-07-24 | 02:45:07 | H alpha cont | 0.56 | 1.8181
part0158| 1994-07-24 | 02:47:49 | 5210 A cont | 0.25 | 1.8470
part0159| 1994-07-24 | 02:50:27 | CO+ 4247 A | 1.08 | 1.8763
part0160| 1994-07-24 | 02:53:09 | CN 3877 A | 20.09 | 1.9091
part0170| 1994-07-24 | 03:23:03 | CH4 | 10.09 | 2.3571
part0171| 1994-07-24 | 03:25:53 | 6822 A cont | 0.25 | 2.4107
part0172| 1994-07-24 | 03:28:49 | 5210 A cont | 0.25 | 2.4712
part0173| 1994-07-24 | 03:31:26 | CO+ 4247 A | 1.08 | 2.5281
-----------------------------------------------------------------------
CH4: 'private' filter, kindly provided by S. Mottola, DLR,
Berlin, Germany Lambda cen. = 8900A, delta Lambda = 100A
6822 A: continuum filter, ESO#441, Lambda cen. = 6822A, delta
Lambda = 73A
H alpha: H alpha continuum, ESO#696, Lambda cen. = 6654A, delta
Lambda = 61A cont
H alpha: H alpha filter, ESO#692, Lambda cen. = 6552A, delta Lambda
= 60A
5210 A: continuum filter, ESO#432, Lambda cen. = 5210A, delta Lambda
= 60A
CO+: CO+ filter, ESO#573, Lambda cen. = 4247A, delta Lambda = 77A
CN: CN filter, ESO#676, Lambda cen. = 3877A, delta Lambda = 19A
SUSI imaging capabilities complement well those of EMMI on the other
focus. The scheduling of the observing programmes at the NTT can be
adapted to the sky conditions. When the image size is better than
0.7 arcsec, the telescope can be configured for observing with SUSI.
In order to take full advantage of this unique capability, ESO has
now introduced a special category of observing programmes which
require exceptional seeing and are executed in a service mode by ESO
staff when the sky conditions are favourable.
Data structure
==============
SIMPLE = T / Standard FITS format
BITPIX = 32 / No. of bits per pixel
NAXIS = 2 / No. of axes in image
NAXIS1 = 330 / No. of pixels
NAXIS2 = 310 / No. of pixels
EXTEND = T / FITS extension may be present
BLOCKED = T / FITS file may be blocked
CRPIX1 = 1. / Reference pixel
CRVAL1 = 121. / Coordinate at reference pixel
CDELT1 = 1. / Coordinate increment per pixel
CTYPE1 = ' ' / Units of coordinate
CRPIX2 = 1. / Reference pixel
CRVAL2 = 351. / Coordinate at reference pixel
CDELT2 = 1. / Coordinate increment per pixel
CTYPE2 = ' ' / Units of coordinate
BUNIT = ' ' / Units of data values
BSCALE = 8.0895269867E-06 / Scaling factor: r = f*i + z
BZERO = 17455.8145065 / Zero offset: r = f*i + z
DATAMAX = 34827.9414062 / Maximum data value
DATAMIN = 83.6876068115 / Minimum data value
ORIGIN = 'ESO-MIDAS' / Written by MIDAS
DATE = '13/07/95' / Date of writting: DD/MM/YY
FILENAME= 'part0170.bdf' / Original file name
MIDASFTP= 'IMAGE ' / MIDAS File Type
OBJECT = 'Jupiter CH4' / MIDAS desc.: IDENT(1)
RA = 213.55521 / MIDAS desc.: O_POS(1)
DEC = -12.32001 / MIDAS desc.: O_POS(2)
DATE-OBS= '24/07/94' / MIDAS desc.: O_TIME(1)
MJD-OBS = 49557.14101 / MIDAS desc.: O_TIME(4)
TM-START= 12183.2640006 / MIDAS desc.: O_TIME(5)
EXPTIME = 10. / MIDAS desc.: O_TIME(7)
TELESCOP= 'ESONTTA ' / MIDAS desc.: TELESCOP(1)
INSTRUME= 'SUSI ' / MIDAS desc.: INSTRUME(1)
OBSERVER= 'JUPITER ' / MIDAS desc.: OBSERVER(1)
AIRMASS = 2.357133 / MIDAS desc.: O_AIRM(1)
COMMENT / Time Reference System is used only for Sidereal time
COMMENT / All other time info is got from instr. computer clock
HISTORY COMPUTE/IMAG flat0170.bdf = (susi0170.bdf-bias_ave.bdf)/ffn_0116
HISTORY .bdf EXTRACT/IMAG part0170.bdf = flat0170.bdf[@121,@351:@450,@660]
HISTORY
HIERARCH ESO GEN ID = 'ARC-0001/1.4' / Version of related document
HIERARCH ESO GEN PROJ ID = '053.08-030' / ESO program identification
HIERARCH ESO GEN EXPO NO = 8078 / Image Sequence Number
HIERARCH ESO GEN EXPO TYPE = 'SCI ' / Type of exposure
HIERARCH ESO GEN EXPO LST = 67560. / Loc. Sid. time at start of ex.
HIERARCH ESO GEN TEMP = 283.9 / Observatory Ambient Temp. (K)
HIERARCH ESO GEN TEMPVAR = 0. / Observatory Temp. var. (K)
HIERARCH ESO GEN RHUM = 36. / Observatory Ambient Humidity (%)
HIERARCH ESO GEN RHUMVAR = 0. / Observatory Humidity var. (%)
HIERARCH ESO GEN FWHM = 0. / Observatory seeing (arcsec)
HIERARCH ESO GEN FWHMVAR = 0. / Observatory seeing var. (arcsec)
HIERARCH ESO GEN WIND SPEED = 8.6 / Observatory wind speed (m/sec)
HIERARCH ESO GEN WIND SPEEDVA = 0. / Observ. wind speed var. (m/sec)
HIERARCH ESO GEN WIND DIREC = 180. / Wind direction (N=0 E=90)
HIERARCH ESO GEN WIND DIRVAR = 0. / Wind direction var.
HIERARCH ESO TEL ID = 'ESONTT ' / Telescope Identification
HIERARCH ESO TEL FOCU ID = 'NASM-A ' / Telescope focus ID
HIERARCH ESO TEL LON = -70.7345 / Telescope Longitude (+=East)
HIERARCH ESO TEL LAT = -29.2584 / Telescope Latitude (+=North)
HIERARCH ESO TEL HEIGHT = 2440 / Telescope height (m)
HIERARCH ESO TEL FOCU LEN = 38.482 / Focus length (m)
HIERARCH ESO TEL FOCU SCALE = 1.489 / Focus scale (deg/m) = 5.36arcsec/mm
HIERARCH ESO TEL TRAK RATEA = 0.0042 / Tracking rate in alpha (deg/s)
HIERARCH ESO TEL TRAK RATED = 0. / Tracking rate in delta (deg/s)
HIERARCH ESO TEL DOME TEMP = 283.8 / Tel temperature (Kelvin)
HIERARCH ESO TEL DOME TEMPVAR = 0. / Tel temp. variation (Kelvin)
HIERARCH ESO TEL DOME FWHM = 0. / Tel seeing (arcsec)
HIERARCH ESO TEL DOME FWHMVAR = 0. / Tel seeing variation (arcsec)
HIERARCH ESO TEL PARANG START = 63.25 / Parallactic angle at exp start
HIERARCH ESO TEL PARANG END = 63.25 / Parallactic angle at exp end
HIERARCH ESO TEL AIRM START = 2.34484 / Airmass at exp start
HIERARCH ESO TEL AIRM END = 2.34642 / Airmass at exp end
HIERARCH ESO ADA ID = 'ADAPTA ' / Adapter Identification
HIERARCH ESO ADA MODE = 'STD ' / Mode (standard)
HIERARCH ESO ADA POSANG = 0. / Rotat. at the start of the exp.
HIERARCH ESO ADA GUID-1 X = 1.984E-06 / Guide probe x position (m)
HIERARCH ESO ADA GUID-1 Y = -0.1668 / Guide probe y position (m)
HIERARCH ESO ADA GUID-2 X = -0.1705 / Guide probe x position (m)
HIERARCH ESO ADA GUID-2 Y = 0.1685 / Guide probe y position (m)
HIERARCH ESO INS ID = 'SUSI #1 ' / Instrument Identification
HIERARCH ESO INS COMP ID = 'HP RTE-A V5' / Instrument computer op. sys.
HIERARCH ESO INS OPTI-1 NO = 3 / Mirror Slit position
HIERARCH ESO INS OPTI-1 TYPE = 'MIRROR ' / What is this element
HIERARCH ESO INS OPTI-1 ID = ' ' / Mirror unique identification
HIERARCH ESO INS OPTI-1 NAME = 'SUSI ' / Mirror slit position
HIERARCH ESO INS OPTI-2 NO = 1 / Filter Wheel position
HIERARCH ESO INS OPTI-2 TYPE = 'FILTER ' / What is this element
HIERARCH ESO INS OPTI-2 ID = 'CH4 980MM' / Filter unique identification
HIERARCH ESO INS OPTI-2 NAME = 'PRIVAT ' / Filter position
HIERARCH ESO DET NAME = 'TK1024AF' / Detector name
HIERARCH ESO DET ID = 'ccd$25 ' / Detector serial id.
HIERARCH ESO DET TYPE = 'CCD Tektronix' / Detector type
HIERARCH ESO DET PIXSIZE = 2.4E-05 / Size of pixel (m)
HIERARCH ESO DET BITS = 16 / ADU bits per pixel
HIERARCH ESO DET FRAM BITS = 16 / Number of bits/pixel transfered
HIERARCH ESO DET FRAM NAXIS1 = 1124 / Number of pixels along x
HIERARCH ESO DET FRAM CRVAL1 = 1. / x coordinate of lower left pixel
HIERARCH ESO DET FRAM CRPIX1 = 1. / x coordinate of reference pixel
HIERARCH ESO DET FRAM CDELT1 = 1. / Binning factor along x
HIERARCH ESO DET FRAM NAXIS2 = 1024 / Number of pixels along y
HIERARCH ESO DET FRAM CRVAL2 = 1. / y coordinate of lower left pixel
HIERARCH ESO DET FRAM CRPIX2 = 1. / y coordinate of reference pixel
HIERARCH ESO DET FRAM CDELT2 = 1. / Binning factor along y
HIERARCH ESO DET DKTIME = 10. / Dark current time (s)
HIERARCH ESO DET TEMP_VAR = 0. / Temperature drift during exposure
HIERARCH ESO DET TEMPMEAN = 173.3 / Mean detector temperature (K)
HIERARCH ESO DET COMP ID = 'ccds-V4.1' / A900 CCD-program name+vers
HIERARCH ESO DET PARM1 = 'CLOCK=tek1k25ad'
HIERARCH ESO DET PARM2 = 'VLO1 : -7.91 VHI1 : 1.53 VDD1 : 24.29'
HIERARCH ESO DET PARM3 = 'VLO2 : -7.94 VHI2 : 1.52 VDD2 : 24.46'
HIERARCH ESO DET PARM4 = 'HLO1 : -4.31 HHI1 : 9.53 VDR1 : 16.69'
HIERARCH ESO DET PARM5 = 'HLO2 : -6.31 HHI2 : 6.37 VDR2 : 16.64'
HIERARCH ESO DET PARM6 = 'RLO1 : -0.95 RHI1 : 7.70 VGS1 : 9.93'
HIERARCH ESO DET PARM7 = 'RLO2 : -0.98 RHI2 : 7.85 VGS2 : 9.94'
HIERARCH ESO DET PARM8 = '-15V : -14.97 +15V : 14.96 +30V : 28.33'
HIERARCH ESO DET DATE = 1993.67 / CCD implementation date
HIERARCH ESO DET MODE = 'SLOW ' / Readout mode
HIERARCH ESO DET OUTPUTS = 2 / On-chip outputs connected
HIERARCH ESO DET OUT-1 ST = 1 / If T, output enabled
HIERARCH ESO DET OUT-1 X = 1 / X-location for output 1
HIERARCH ESO DET OUT-1 Y = 1 / Y-location for output 1
HIERARCH ESO DET OUT-1 GAIN = 1 / Gain for output 1
HIERARCH ESO DET OUT-1 ADU = 3.3 / Electrons per ADU for output 1
HIERARCH ESO DET OUT-2 ST = 0 / If T, output enabled
HIERARCH ESO DET OUTREF = 1 / Ref. output (gives image orient.)
HIERARCH ESO DET UDIT = 10. / User defined integr. time (sec)
HIERARCH ESO DET SHUT TMOPEN = 0.05 / Time needed to open shutter(sec)
HIERARCH ESO DET SHUT TMCLOS = 0.13 / Time needed to close shutter(sec)
HISTORY ESO-DESCRIPTORS START ................
HISTORY 'TM_START' ,'I*4 ' , 1, 1,'7I10',' ',' '
HISTORY 8405629
HISTORY
HISTORY 'TM_END' ,'I*4 ' , 1, 1,'7I10',' ',' '
HISTORY 8406629
HISTORY
HISTORY 'LHCUTS' ,'R*4 ' , 1, 4,'5E14.7',' ',' '
HISTORY 0.0000000E+00 3.2000000E+04 8.3687607E+01 3.4827941E+04
HISTORY
HISTORY 'DISPLAY_DATA' ,'I*4 ' , 1, 9,'7I10',' ',' '
HISTORY 1 1 166 156 0 -1
HISTOR Y - -1 -1
HISTORY
HISTORY ESO-DESCRIPTORS END ................
END
Software
========
Standard IRAF reduction routines were used.
Media/Format
============
This dataset is 8 MM tape submission to PDS which was referenced in
the Schulz et al. (1995) [SCHULZETAL1995] article.
|
.png)
.png)
