Observation Summary

OBSID:1342210834
Instrument:PACS
AOR label:PACS-OI-OI-NII-NII-CO_14-13 - NGC4826
Proposal:KPGT_rguesten_1
Target:NGC4826
Actual RA:12h 56m 43.81s
Actual Dec.:21° 41' 2.1''
Redshift:408.0 (rad. vel. km/s)
Purpose:---
Concat.:---
OD:570
Start:2010-12-05T11:12:37.000000 TAI (1670238757000000)
Duration:1993.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsLineSpec
Mode:Pointed, Chop/Nod
Bands:B3A R1 (prime diffraction orders selected)
Is bright:NO (default range mode)
Chopper:large throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)Wave(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometerpF
OI 63blue3B3A63.27063.03263.537110.14Noprime
-red103R1-189.066190.596110.14Noparallel
OI 145red105R1145.723144.605147.005110.14Noprime
-blue5B2A-72.31373.5041--Yes, fullyparallel
NII 121red106R1122.064120.848123.480110.14Noprime
-blue6B2A-60.44061.746110.14Noparallel
NII 205red102R1205.459204.769206.220110.14Noprime
-blue2B3A-68.26568.759110.14Noparallel
CO 14-13red104R1186.252185.382187.209110.14Noprime
-blue4B3A-61.80662.408110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-24T09:26:10.981000 TAI (1848043570981000)
Mission configuration:MC_H62ASTR_P58ASTR_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  1.93" 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.