Observation Summary
| OBSID: | 1342242443 |
| Instrument: | PACS |
| AOR label: | PRISMAS_SgrA_blue_off |
| Proposal: | KPGT_mgerin_1 |
| Target: | SgrA*-OFF |
| Actual RA: | 17h 47m 22.87s |
| Actual Dec.: | -28° 32' 22.05'' |
| Purpose: | offSelector |
| Concat.: | 1342242442,1342242443 |
| OD: | 1047 |
| Start: | 2012-03-26T05:47:17.000000 TAI (1711432037000000) |
| Duration: | 592.0 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 | 70.000 | 102.000 | 69.800 | 102.139 | 1 | 2 | 0.14 | No | prime |
- | red | 102 | R1 | - | - | 139.566 | 204.202 | 1 | 2 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-07-27T03:02:46.067000 TAI (1848279766067000) |
| Mission configuration: | MC_H100ASTR_P69ASTR_S66ASTR_RP |
| 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 1342242442
The offset between the central spaxel and the requested sky coordinates is 1.73" 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.