Observation Summary

OBSID:1342187019
Instrument:PACS
AOR label:J0843.3-7905_Ib_dither_CII_OI145_H2O
Proposal:SDP_bdent_3
Target:J0843.3-7905
Actual RA:8h 43m 17.97s
Actual Dec.:-79° 5' 18.52''
Purpose:Undefined
Concat.:---
OD:185
Start:2009-11-15T14:56:28.000000 TAI (1636988188000000)
Duration:5150.0 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:small throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
CIIred103R1157.100158.900156.687159.407330.14Noprime
-blue3B2B--78.36079.717330.14Noparallel
H2Ored102R1178.900181.000178.531181.412330.14Noprime
-blue2B2B--89.27990.719330.14Noparallel
OI145red104R1144.000146.100143.569146.637330.14Noprime
-blue4B2B--71.80373.333330.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-22T20:04:42.898000 TAI (1847909082898000)
Mission configuration:MC_HPhase3_P34ASTR_S34ASTR_SDP
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  1.62" 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.