Observation Summary

OBSID:1342222163
Instrument:PACS
AOR label:PSpecL-dwagn126
Proposal:OT1_dweedman_1
Target:Mrk0876
Actual RA:16h 13m 57.43s
Actual Dec.:65° 43' 7.06''
Redshift:0.129 (z)
Purpose:---
Concat.:---
OD:751
Start:2011-06-04T18:25:08.000000 TAI (1685903108000000)
Duration:398.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsLineSpec
Mode:Pointed, Chop/Nod
Bands:B2B R1 (prime diffraction orders selected)
Is bright:NO (default range mode)
Chopper:medium throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)Wave(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometerpF
CII C+red102R1178.089177.142179.111110.14Noprime
-blue2B2B-88.58589.568110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-25T10:38:45.850000 TAI (1848134325850000)
Mission configuration:MC_H76ASTR_P66ASTR_S61ASTR_AO
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  2.71" 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.