Observation Summary
| OBSID: | 1342217854 |
| Instrument: | PACS |
| AOR label: | Bright 2 - OFFPOS 12 - HOPS 343 - 329 |
| Proposal: | KPOT_tmegeath_2 |
| Target: | OFFPOS 12 |
| Actual RA: | 5h 44m 17.94s |
| Actual Dec.: | 0° 49' 50.19'' |
| Purpose: | Undefined |
| Concat.: | 1342217851,1342217852,1342217853,1342217854,1342217855,1342217856 |
| OD: | 690 |
| Start: | 2011-04-04T18:31:34.000000 TAI (1680633094000000) |
| 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 | 70.656 | 98.170 | 4 | 2 | 0.14 | No | prime |
- | red | 102 | R1 | - | - | 141.276 | 196.284 | 4 | 2 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.2 |
| SPG pipeline products creation date: | 2017-01-17T12:47:54.469000 TAI (1863348474469000) |
| Mission configuration: | MC_H72ASTR_P60ASTR_S61ASTR_AO |
| 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 1342217852, 1342217856
The offset between the central spaxel and the requested sky coordinates is 2.94" 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.