Observation Summary
| OBSID: | 1342227343 |
| Instrument: | PACS |
| AOR label: | Bright 2 - OFFPOS 1 - HOPS 368 - 369 |
| Proposal: | KPOT_tmegeath_2 |
| Target: | OFFPOS 1 |
| Actual RA: | 5h 32m 18.65s |
| Actual Dec.: | -6° 24' 26.98'' |
| Purpose: | offSelector |
| Concat.: | 1342227340,1342227341,1342227342,1342227343,1342227344,1342227345 |
| OD: | 833 |
| Start: | 2011-08-25T08:18:39.000000 TAI (1692951519000000) |
| Duration: | 1930.0 seconds (incl. spacecraft on-target slew time) |
AOT and instrument configuration:
| AOT: | PacsRangeSpec |
| Mode: | Pointed, unchopped grating scan |
| Bands: | B2B R1 (prime diffraction orders selected) |
| Sampling: | Nyquist (with spectral dithering if range repetition > 1) |
| Nod cycles: | 1 |
Observation block summary
| Name(*) | Camera | ID | Band(*) | ReqWaveMin(*) | ReqWaveMax(*) | WaveMin | WaveMax | Repetitions(*) | ActualRep | Capacitance | OutOfBand | Channel |
| | | | micrometer | micrometer | micrometer | micrometer | | | pF | | |
Range 1 | blue | 2 | B2B | 71.000 | 98.000 | 70.668 | 98.186 | 4 | 2 | 0.14 | No | prime |
- | red | 102 | R1 | - | - | 141.299 | 196.317 | 4 | 2 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.2 |
| SPG pipeline products creation date: | 2017-01-17T12:49:13.341000 TAI (1863348553341000) |
| Mission configuration: | MC_H88ASTR_P67ASTR_S63ASTR_RP |
| Processed to level: | RED: 2.0 BLUE: 2.0 |
| Quality Control: | PASSED |
| Action: | NONE |
Quality comments
Off source observation in unchopped range-scan pairs; matched with the on-source observations 1342227341, 1342227345
The offset between the central spaxel and the requested sky coordinates is 1.53" 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.