Observation Summary
| OBSID: | 1342222064 |
| Instrument: | PACS |
| AOR label: | PSpecL-NGC4125 - NII - centre |
| Proposal: | KPGT_cwilso01_1 |
| Target: | ngc4125-1 |
| Actual RA: | 12h 8m 6.49s |
| Actual Dec.: | 65° 10' 25.55'' |
| Redshift: | 1356.0 (rad. vel. km/s) |
| Purpose: | --- |
| Concat.: | 1342222063,1342222064,1342222065 |
| OD: | 740 |
| Start: | 2011-05-23T23:12:13.000000 TAI (1684883533000000) |
| Duration: | 1502.0 seconds (incl. spacecraft on-target slew time) |
AOT and instrument configuration:
| AOT: | PacsLineSpec |
| Mode: | Pointed, Chop/Nod |
| Bands: | B3A R1 (prime diffraction orders selected) |
| Is bright: | NO (default range mode) |
| Chopper: | large throw |
| Nod cycles: | 1 |
Observation block summary
| Name(*) | Camera | ID | Band(*) | Wave(*) | WaveMin | WaveMax | Repetitions(*) | ActualRep | Capacitance | OutOfBand | Channel |
| | | | micrometer | micrometer | micrometer | | | pF | | |
N II 3P2-3P1 | red | 102 | R1 | 122.451 | 121.221 | 123.849 | 4 | 4 | 0.14 | No | prime |
- | blue | 2 | B2A | - | 60.626 | 61.931 | 4 | 4 | 0.14 | No | parallel |
(*) = requested in HSPOT
System configuration summary
| SPG pipeline version: | SPG v14.2.0 |
| SPG pipeline products creation date: | 2016-07-25T10:09:55.025000 TAI (1848132595025000) |
| Mission configuration: | MC_H76ASTR_P66ASTR_S61ASTR_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 3.17" 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.