Observation Summary

OBSID:1342243895
Instrument:PACS
AOR label:PSpecR-KHK-PAH-Range2-OriA-145-p2
Proposal:OT1_kkim_1
Target:OriA-145
Actual RA:5h 35m 23.41s
Actual Dec.:-5° 28' 11.19''
Purpose:offSelector
Concat.:1342243893,1342243894,1342243895
OD:1060
Start:2012-04-08T03:30:30.000000 TAI (1712547030000000)
Duration:3770.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsRangeSpec
Mode:Pointed, unchopped grating scan
Bands:B3A R1 (prime diffraction orders selected)
Sampling:Nyquist (with spectral dithering if range repetition > 1)
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
Range 1blue2B3A51.00073.00050.77873.059520.14Yes, partlyprime
-red102R1--152.333219.143520.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.2
SPG pipeline products creation date:2017-01-18T08:34:24.100000 TAI (1863419664100000)
Mission configuration:MC_H100ASTR_P69ASTR_S66ASTR_RP
Processed to level:RED: 2.5 BLUE: 2.5
Quality Control:PASSED
Action:NONE

Quality comments

On source observation in an unchopped range-scan pair; matched with the off-source observation 1342243894
The offset between the central spaxel and the requested sky coordinates is  1.54" 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.