Observation Summary

OBSID:1342191363
Instrument:PACS
AOR label:HOPS_165_S_opt1
Proposal:SDP_tmegeath_4
Target:HOPS_165-1-9
Actual RA:5h 36m 22.9s
Actual Dec.:-6° 46' 11.8''
Purpose:Undefined
Concat.:1342191363,1342191364
OD:290
Start:2010-02-28T16:22:52.000000 TAI (1646065372000000)
Duration:3129.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsRangeSpec
Mode:Pointed, Chop/Nod
Bands:B3A R1 (prime diffraction orders selected)
Sampling:Nyquist (with spectral dithering if range repetition > 1)
Chopper:large throw
Nod cycles:2

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
Range 1blue2B3A57.00071.00056.87471.099110.14Noprime
-red102R1--170.577213.252110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-23T09:27:33.676000 TAI (1847957253676000)
Mission configuration:MC_H28ASTR_P43ASTR_S46ASTR_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  1.70" 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.