Observation Summary
| OBSID: | 1342218488 |
| Instrument: | PACS |
| AOR label: | HLOGAL-1FS0086--NGC7172 |
| Proposal: | GT1_lspinogl_4 |
| Target: | NGC7172 |
| Actual RA: | 22h 2m 1.74s |
| Actual Dec.: | -31° 52' 12.22'' |
| Purpose: | Undefined |
| Concat.: | 1342218488,1342218489,1342218490 |
| OD: | 699 |
| Start: | 2011-04-12T22:34:16.000000 TAI (1681338856000000) |
| Duration: | 508.0 seconds (incl. spacecraft on-target slew time) |
AOT and instrument configuration:
| AOT: | PacsRangeSpec |
| Mode: | Pointed, Chop/Nod |
| Bands: | B2B R1 (prime diffraction orders selected) |
| Sampling: | High (default spectral mapping) |
| Chopper: | medium throw |
| Nod cycles: | 1 |
Observation block summary
| Name(*) | Camera | ID | Band(*) | ReqWaveMin(*) | ReqWaveMax(*) | WaveMin | WaveMax | Repetitions(*) | ActualRep | Capacitance | OutOfBand | Channel |
| | | | micrometer | micrometer | micrometer | micrometer | | | pF | | |
OIII88 | blue | 2 | B2B | 88.820 | 89.420 | 88.655 | 89.649 | 1 | 1 | 0.14 | No | prime |
- | red | 102 | R1 | - | - | 177.281 | 179.272 | 1 | 1 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-07-25T03:50:38.237000 TAI (1848109838237000) |
| 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 2.41" 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.