Observation Summary
| OBSID: | 1342199405 |
| Instrument: | PACS |
| AOR label: | NearGalPACS-SB-06-red |
| Proposal: | KPGT_esturm_1 |
| Target: | NGC4038 |
| Actual RA: | 12h 1m 53.12s |
| Actual Dec.: | -18° 52' 11.25'' |
| Redshift: | 0.005477 (z) |
| Purpose: | --- |
| Concat.: | --- |
| OD: | 412 |
| Start: | 2010-06-29T20:46:35.000000 TAI (1656535595000000) |
| Duration: | 1204.0 seconds (incl. spacecraft on-target slew time) |
AOT and instrument configuration:
| AOT: | PacsLineSpec |
| Mode: | Pointed, Chop/Nod |
| Bands: | B2B R1 (prime diffraction orders selected) |
| Is bright: | NO (default range mode) |
| Chopper: | large throw |
| Nod cycles: | 1 |
Observation block summary
| Name(*) | Camera | ID | Band(*) | Wave(*) | WaveMin | WaveMax | Repetitions(*) | ActualRep | Capacitance | OutOfBand | Channel |
| | | | micrometer | micrometer | micrometer | | | pF | | |
Line 1 | red | 103 | R1 | 158.605 | 157.516 | 159.763 | 1 | 1 | 0.14 | No | prime |
- | blue | 3 | B2B | - | 78.775 | 79.894 | 1 | 1 | 0.14 | No | parallel |
Line 4 | blue | 2 | B2B | 88.840 | 88.409 | 89.300 | 2 | 2 | 0.14 | No | prime |
- | red | 102 | R1 | - | 176.790 | 178.575 | 2 | 2 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-07-23T17:53:32.275000 TAI (1847987612275000) |
| Mission configuration: | MC_H42ASTR_P48ASTR_S52ASTR_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 2.31" 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.