Observation Summary

OBSID:1342216211
Instrument:PACS
AOR label:HLOGAL-1FS0016--NGC1056
Proposal:GT1_lspinogl_4
Target:NGC1056
Actual RA:2h 42m 48.47s
Actual Dec.:28° 34' 26.87''
Purpose:Undefined
Concat.:1342216210,1342216211,1342216212
OD:660
Start:2011-03-04T19:56:51.000000 TAI (1677959811000000)
Duration:518.0 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:High (default spectral mapping)
Chopper:medium throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
OIII88blue2B2B88.50089.11088.31789.327110.14Noprime
-red102R1--176.605178.627110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-24T22:24:19.137000 TAI (1848090259137000)
Mission configuration:MC_H66ASTR_P60ASTR_S61ASTR_RP
Processed to level:RED: 2.0 BLUE: 2.0
Quality Control:PASSED
Action:NONE

Quality comments

The offset between the central spaxel and the requested sky coordinates is  2.02" 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.