Observation Summary

OBSID:1342197798
Instrument:PACS
AOR label:HLOGAL-1M0016--NGC3227
Proposal:GT1_lspinogl_4
Target:NGC3227
Actual RA:10h 23m 30.75s
Actual Dec.:19° 51' 52.86''
Purpose:Undefined
Concat.:1342197796,1342197797,1342197798
OD:387
Start:2010-06-05T13:41:15.000000 TAI (1654436475000000)
Duration:2254.0 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:2

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
CO16-15red102R1162.940164.540162.525165.007110.14Noprime
-blue2B2B--81.27882.516110.14Noparallel
CO33-32blue3B2B79.07079.97078.86480.213110.14Noprime
-red103R1--157.695160.399110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-23T15:49:55.342000 TAI (1847980195342000)
Mission configuration:MC_H38ASTR_P48ASTR_S52ASTR_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  2.72" 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.