Observation Summary

OBSID:1342256928
Instrument:PACS
AOR label:NGC 6888 (P2) inner
Proposal:OT2_dstock_3
Target:NGC 6888 - inner-1
Actual RA:20h 11m 56.14s
Actual Dec.:38° 21' 41.21''
Redshift:0.0 (z)
Purpose:---
Concat.:1342256927,1342256928
OD:1306
Start:2012-12-09T16:20:21.000000 TAI (1733761221000000)
Duration:2323.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsLineSpec
Mode:Pointed, unchopped grating scan
Bands:B2B R1 (prime diffraction orders selected)
Is bright:NO (default range mode)
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)Wave(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometerpF
O III 3P1-3P0blue3B2B88.35687.77488.986240.14Noprime
-red103R1-175.520177.946240.14Noparallel
N II 3P1-3P0red102R1205.178204.135206.2428160.14Noprime
-blue2B2B-102.065103.1628160.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-28T05:03:59.307000 TAI (1848373439307000)
Mission configuration:MC_H102ASTR_P70ASTR_S66ASTR_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  1.98" 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.