Exposure
- ID
- GRAVI.2022-05-20T00:21:52.375_2
- Header ID
- GRAVI.2022-05-20T00:21:52.375
- Date updated
- 2022-05-20 00:31:12 UTC+0000
- Release date
- 2023-05-20 00:31:12 UTC+0000
- UTC Start
- 2022-05-20 00:21:52.375
- UTC End
- 2022-05-20 00:23:52.375
- MJD Start
- 59719.01518952
- MJD End
- 59719.0165784089
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0082515
- Ambient temperature (°C)
- 12.95
- Seeing (arcsec)
- 0.615
Observation
- ID
- 50935
- Category
- science
- Program ID
- 109.23BY.001
- Program Title
- SIZING UP THE HOT DUST CONTINUUM IN AGN WITH DIRECT MEASUREMENTS
- Program Type
- Normal
- PI / COI
- DAVIES/ DE ZEEUW/ DEXTER/ HOENIG/ LUTZ/ SHANGGUAN/ SHIMIZU/ STURM/ SANTOS/ CAO/ KISHIMOTO
Target
- ID
- 37986
- Name
- NGC_3227
- RA
- 155.877404166667
- DEC
- 19.8650783333333
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 49.0980 | 49.2700 | 37.4000 | 37.4000 |
| U1-U3 | 92.2980 | 92.6040 | 42.9000 | 42.9000 |
| U1-U4 | 129.4950 | 129.6140 | 63.7840 | 63.6010 |
| U2-U3 | 43.6810 | 43.8060 | 49.1000 | 49.0000 |
| U2-U4 | 88.2530 | 88.1050 | 78.1020 | 77.8720 |
| U3-U4 | 54.3490 | 54.0380 | 101.0400 | 100.8940 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.23BY.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59719.01518952 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | NGC 3227 |
| HIERARCH ESO INS SOBJ NAME | None |
| RA | 155.879732 |
| DEC | 19.86522 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 150.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 120 |
| HIERARCH ESO ISS PBL12 START | 49.098 |
| HIERARCH ESO ISS PBL12 END | 49.27 |
| HIERARCH ESO ISS PBLA12 START | 37.4 |
| HIERARCH ESO ISS PBLA12 END | 37.4 |
| HIERARCH ESO ISS PBL13 START | 92.298 |
| HIERARCH ESO ISS PBL13 END | 92.604 |
| HIERARCH ESO ISS PBLA13 START | 42.9 |
| HIERARCH ESO ISS PBLA13 END | 42.9 |
| HIERARCH ESO ISS PBL14 START | 129.495 |
| HIERARCH ESO ISS PBL14 END | 129.614 |
| HIERARCH ESO ISS PBLA14 START | 63.784 |
| HIERARCH ESO ISS PBLA14 END | 63.601 |
| HIERARCH ESO ISS PBL23 START | 43.681 |
| HIERARCH ESO ISS PBL23 END | 43.806 |
| HIERARCH ESO ISS PBLA23 START | 49.1 |
| HIERARCH ESO ISS PBLA23 END | 49.0 |
| HIERARCH ESO ISS PBL24 START | 88.253 |
| HIERARCH ESO ISS PBL24 END | 88.105 |
| HIERARCH ESO ISS PBLA24 START | 78.102 |
| HIERARCH ESO ISS PBLA24 END | 77.872 |
| HIERARCH ESO ISS PBL34 START | 54.349 |
| HIERARCH ESO ISS PBL34 END | 54.038 |
| HIERARCH ESO ISS PBLA34 START | 101.04 |
| HIERARCH ESO ISS PBLA34 END | 100.894 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008373 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00813 |
| HIERARCH ESO ISS AMBI TEMP | 12.95 |
| HIERARCH ESO ISS AMBI FWHM START | 0.6 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | NGC_3227 |
| HIERARCH ESO FT ROBJ ALPHA | 102330.577 |
| HIERARCH ESO FT ROBJ DELTA | 195154.282 |