Observation Summary

OBSID:1342197791
Instrument:PACS
AOR label:PSpecR-red-V HYA
Proposal:KPGT_mgroen01_1
Target:V HYA
Actual RA:10h 51m 37.37s
Actual Dec.:-21° 15' 0.08''
Purpose:Undefined
Concat.:1342197790,1342197791
OD:387
Start:2010-06-05T08:38:17.000000 TAI (1654418297000000)
Duration:2245.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsRangeSpec
Mode:Pointed, Chop/Nod
Bands:B2A R1 (prime diffraction orders selected)
Sampling:Nyquist (with spectral dithering if range repetition > 1)
Chopper:medium throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
SED B2Ared102R1102.000146.000101.443146.642210.14Noprime
-blue2B2A--50.64073.323210.14Yes, partlyparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-10-21T07:45:37.321000 TAI (1855727137321000)
Mission configuration:MC_H38ASTR_P48ASTR_S52ASTR_RP
Processed to level:RED: 3.0 BLUE: 3.0
Quality Control:PASSED
Action:NONE

Quality comments

The offset between the central spaxel and the requested sky coordinates is  1.66" in the dispersion direction.
If the target is point-like and is offset from the centre of a spaxel in the dispersion direction, the spectral line 
profiles will develop a skew. This skewed Gaussian profile becomes more extreme as the offset increases. 
Be aware that this can be confused with real velocity structure.
This will affect spectra from a single spaxel of a rebinned cube (products with filenames "..hps3dr[r|b].."), 
and combined spaxel-spectra, i.e. added rebinned cube spaxels, or single spaxels from an interpolated or projected cube
(products with filenames "..hps3di[r|b].." or "..hps3dp[r|b].."). See the "PACS Handbook" for more information.