Exposure
- ID
- GRAVI.2022-08-17T08:18:26.518_2
- Header ID
- GRAVI.2022-08-17T08:18:26.518
- Date updated
- 2022-08-17 08:36:07 UTC+0000
- Release date
- 2023-08-17 08:36:07 UTC+0000
- UTC Start
- 2022-08-17 08:18:26.518
- UTC End
- 2022-08-17 08:24:26.518
- MJD Start
- 59808.34614025
- MJD End
- 59808.3503069167
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002469
- Ambient temperature (°C)
- 9.01
- Seeing (arcsec)
- 0.685
Observation
- ID
- 51970
- 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
- 32940
- Name
- HR8799
- RA
- 346.869645833333
- DEC
- 21.1342505555556
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 | 52.5810 | 52.9050 | 37.9000 | 37.8000 |
| U1-U3 | 98.2060 | 98.6930 | 41.9000 | 41.7000 |
| U1-U4 | 129.3570 | 129.0010 | 58.0310 | 57.3570 |
| U2-U3 | 45.8990 | 46.0450 | 46.5000 | 46.1000 |
| U2-U4 | 81.9860 | 81.0940 | 70.7570 | 69.9580 |
| U3-U4 | 44.3410 | 43.1960 | 95.9120 | 95.4870 |
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 | 59808.34614025 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HR8799 |
| HIERARCH ESO INS SOBJ NAME | hr8799f |
| RA | 346.872266 |
| DEC | 21.13372 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 52.581 |
| HIERARCH ESO ISS PBL12 END | 52.905 |
| HIERARCH ESO ISS PBLA12 START | 37.9 |
| HIERARCH ESO ISS PBLA12 END | 37.8 |
| HIERARCH ESO ISS PBL13 START | 98.206 |
| HIERARCH ESO ISS PBL13 END | 98.693 |
| HIERARCH ESO ISS PBLA13 START | 41.9 |
| HIERARCH ESO ISS PBLA13 END | 41.7 |
| HIERARCH ESO ISS PBL14 START | 129.357 |
| HIERARCH ESO ISS PBL14 END | 129.001 |
| HIERARCH ESO ISS PBLA14 START | 58.031 |
| HIERARCH ESO ISS PBLA14 END | 57.357 |
| HIERARCH ESO ISS PBL23 START | 45.899 |
| HIERARCH ESO ISS PBL23 END | 46.045 |
| HIERARCH ESO ISS PBLA23 START | 46.5 |
| HIERARCH ESO ISS PBLA23 END | 46.1 |
| HIERARCH ESO ISS PBL24 START | 81.986 |
| HIERARCH ESO ISS PBL24 END | 81.094 |
| HIERARCH ESO ISS PBLA24 START | 70.757 |
| HIERARCH ESO ISS PBLA24 END | 69.958 |
| HIERARCH ESO ISS PBL34 START | 44.341 |
| HIERARCH ESO ISS PBL34 END | 43.196 |
| HIERARCH ESO ISS PBLA34 START | 95.912 |
| HIERARCH ESO ISS PBLA34 END | 95.487 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002074 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002864 |
| HIERARCH ESO ISS AMBI TEMP | 9.01 |
| HIERARCH ESO ISS AMBI FWHM START | 0.78 |
| HIERARCH ESO ISS AMBI FWHM END | 0.59 |
| HIERARCH ESO FT ROBJ NAME | HR8799 |
| HIERARCH ESO FT ROBJ ALPHA | 230728.715 |
| HIERARCH ESO FT ROBJ DELTA | 210803.302 |