Observation Summary
| OBSID: | 1342203444 |
| Instrument: | PACS |
| AOR label: | CenA_case_study_pacs_55_72 |
| Proposal: | KPGT_rguesten_1 |
| Target: | Cen A |
| Actual RA: | 13h 25m 27.73s |
| Actual Dec.: | -43° 1' 10.47'' |
| Purpose: | Undefined |
| Concat.: | [1342202588, 1342203444] |
| OD: | 468 |
| Start: | 2010-08-24T17:39:58.000000 TAI (1661362798000000) |
| Duration: | 5663.0 seconds (incl. spacecraft on-target slew time) |
AOT and instrument configuration:
| AOT: | PacsRangeSpec |
| Mode: | Pointed, Chop/Nod |
| Bands: | B2A R1 (prime diffraction orders selected) |
| Sampling: | Nyquist (with spectral dithering if range repetition > 1) |
| Chopper: | large throw |
| Nod cycles: | 5 |
Observation block summary
| Name(*) | Camera | ID | Band(*) | ReqWaveMin(*) | ReqWaveMax(*) | WaveMin | WaveMax | Repetitions(*) | ActualRep | Capacitance | OutOfBand | Channel |
| | | | micrometer | micrometer | micrometer | micrometer | | | pF | | |
SED B2A | red | 102 | R1 | 102.000 | 146.000 | 101.447 | 146.490 | 1 | 1 | 0.14 | No | prime |
- | blue | 2 | B2A | - | - | 50.642 | 73.247 | 1 | 1 | 0.14 | Yes, partly | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-10-21T07:46:00.553000 TAI (1855727160553000) |
| Mission configuration: | MC_H52ASTR_P55ASTR_S55ASTR_AO |
| Processed to level: | RED: 3.0 BLUE: 3.0 |
| Quality Control: | PASSED |
| Action: | NONE |
Quality comments
The offset between the central spaxel and the requested sky coordinates is 2.10" 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.