Observation Summary

OBSID:1342262972
Instrument:PACS
AOR label:PSpecR-posB-blueSED
Proposal:OT1_tonaka_2
Target:Carina_posB
Actual RA:10h 43m 52.97s
Actual Dec.:-59° 37' 3.4''
Purpose:offSelector
Concat.:1342262972,1342262973,1342262974,1342262975
OD:1363
Start:2013-02-05T13:50:13.000000 TAI (1738763413000000)
Duration:339.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsRangeSpec
Mode:Pointed, unchopped grating scan
Bands:B2A 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
SED B2Ared102R1102.000146.000101.458146.503121.15Noprime
-blue2B2A--50.64873.254120.14Yes, partlyparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2017-01-14T11:01:14.359000 TAI (1863082874359000)
Mission configuration:MC_H100ASTR_P70ASTR_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 1342262973
The offset between the central spaxel and the requested sky coordinates is  1.57" 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.