Observation Summary
| OBSID: | 1342199294 |
| Instrument: | PACS |
| AOR label: | Calibration_RPSpecFlux_1-RPSpecFlux_721A_StdSED_sedb2b_m_DarkField_0002 |
| Proposal: | Calibration_rppacs_27 |
| Target: | ISOPHOT Dark Field |
| Actual RA: | 17h 49m 9.97s |
| Actual Dec.: | 69° 48' 23.91'' |
| Purpose: | Undefined |
| Concat.: | --- |
| OD: | 408 |
| Start: | 2010-06-26T10:25:20.000000 TAI (1656239120000000) |
| Duration: | 2263.0 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: | Nyquist (with spectral dithering if range repetition > 1) |
| Chopper: | medium throw |
| Nod cycles: | 1 |
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-07-23T17:12:51.010000 TAI (1847985171010000) |
| Mission configuration: | MC_H42ASTR_P52ASTR_S55ASTR_AO |
| 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 2.06" 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.