Observation Summary
| OBSID: | 1342232577 |
| Instrument: | PACS |
| AOR label: | PACS-S106-RED-OFF-POSITION |
| Proposal: | OT1_epeeters_1 |
| Target: | S106 OFF POSITION |
| Actual RA: | 20h 25m 42.04s |
| Actual Dec.: | 37° 43' 45.81'' |
| Purpose: | offSelector |
| Concat.: | 1342232575,1342232576,1342232577,1342232578 |
| OD: | 921 |
| Start: | 2011-11-20T15:36:43.000000 TAI (1700494603000000) |
| Duration: | 669.0 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 | | |
SED-RED | red | 102 | R1 | 140.000 | 220.000 | 139.575 | 210.270 | 1 | 2 | 0.14 | No | prime |
- | blue | 2 | B2B | - | - | 69.805 | 105.181 | 1 | 2 | 0.14 | Yes, partly | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.2 |
| SPG pipeline products creation date: | 2017-01-17T12:44:51.510000 TAI (1863348291510000) |
| Mission configuration: | MC_H90ASTR_P67ASTR_S63ASTR_HPSDB_MOC13 |
| Processed to level: | RED: 2.0 BLUE: 2.0 |
| Quality Control: | PASSED |
| Action: | NONE |
Quality comments
Off source observation in an unchopped range-scan pair; matched with the on-source observation 1342232578
The offset between the central spaxel and the requested sky coordinates is 2.46" 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.