Observation Summary

OBSID:1342256927
Instrument:PACS
AOR label:NGC 6888 P(1+3) inner
Proposal:OT2_dstock_3
Target:NGC 6888 - inner-1
Actual RA:20h 11m 56.15s
Actual Dec.:38° 21' 41.09''
Redshift:0.0 (z)
Purpose:---
Concat.:1342256927,1342256928
OD:1306
Start:2012-12-09T15:51:51.000000 TAI (1733759511000000)
Duration:1574.0 seconds (incl. spacecraft on-target slew time)

AOT and instrument configuration:

AOT:PacsLineSpec
Mode:Pointed, unchopped grating scan
Bands:B3A R1 (prime diffraction orders selected)
Is bright:NO (default range mode)
Nod cycles:1

Observation block summary

Name(*)CameraIDBand(*)Wave(*)WaveMinWaveMaxRepetitions(*)ActualRepCapacitanceOutOfBandChannel
micrometermicrometermicrometerpF
N III 2P3/2-2P1/2blue2B3A57.33056.96257.731360.14Noprime
-red102R1-170.841173.177360.14Noparallel
N II 3P2-3P1red103R1121.800119.993123.777360.14Noprime
-blue3, 1B2A-60.01261.895360.14Noparallel
(*) = requested in HSPOT

System configuration summary

SPG pipeline version:SPG v14.2.0
SPG pipeline products creation date:2016-07-28T05:04:20.588000 TAI (1848373460588000)
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  1.75" 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.