Observation Summary

OBSID:1342209736
Instrument:PACS
AOR label:W44-SED-Red-fullscan
Proposal:KPGT_vossenko_1
Target:W44
Actual RA:18h 56m 28.56s
Actual Dec.:1° 29' 55.74''
Purpose:Undefined
Concat.:[1342209735, 1342209736]
OD:542
Start:2010-11-07T05:12:58.000000 TAI (1667797978000000)
Duration:4499.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsRangeSpec
Mode:Pointed, Chop/Nod
Bands:B2B R1 (prime diffraction orders selected)
Sampling:Nyquist (with spectral dithering if range repetition > 1)
Chopper:large throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
SED B2Bred102R1140.000220.000139.572210.266210.14Noprime
-blue2B2B--69.803105.179210.14Yes, partlyparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-10-21T08:11:07.544000 TAI (1855728667544000)
Mission configuration:MC_H62ASTR_P58ASTR_S60ASTR_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  2.55" 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.