Observation Summary

OBSID:1342218490
Instrument:PACS
AOR label:HLOGAL-2FS0086--NGC7172
Proposal:GT1_lspinogl_4
Target:NGC7172
Actual RA:22h 2m 1.73s
Actual Dec.:-31° 52' 12.27''
Purpose:Undefined
Concat.:1342218488,1342218489,1342218490
OD:699
Start:2011-04-12T23:24:50.000000 TAI (1681341890000000)
Duration:2933.0 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:High (default spectral mapping)
Chopper:medium throw
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)ReqWaveMin(*)ReqWaveMax(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometermicrometerpF
OI145red105R1145.550147.270145.140147.828110.14Noprime
-blue5B2A--72.58173.9161--Yes, fullyparallel
CII158red104R1158.580159.640158.190160.153110.14Noprime
-blue4B3A--52.73853.426110.14Yes, partlyparallel
NIII57blue3B3A57.63058.01057.51858.160110.14Noprime
-red103R1--172.510174.465110.14Noparallel
OI63blue2B3A63.52063.94063.42064.066110.14Noprime
-red102R1--190.231192.180110.14Noparallel
NII122+OH+COred106R1119.210123.370118.762123.994110.14Noprime
-blue6B2A--59.39762.004110.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-25T05:04:45.218000 TAI (1848114285218000)
Mission configuration:MC_H66ASTR_P60ASTR_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  2.51" 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.