Exposure
- ID
- GRAVI.2023-01-08T03:56:37.401_2
- Header ID
- GRAVI.2023-01-08T03:56:37.401
- Date updated
- 2023-01-08 04:15:31 UTC+0000
- Release date
- 2024-01-08 04:15:31 UTC+0000
- UTC Start
- 2023-01-08 03:56:37.401
- UTC End
- 2023-01-08 04:02:37.401
- MJD Start
- 59952.16432177
- MJD End
- 59952.16848843666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004632
- Ambient temperature (°C)
- 11.5
- Seeing (arcsec)
- 0.7
Observation
- ID
- 49346
- Category
- science
- Program ID
- 108.227A.004
- Program Title
- DEEP EXPLORATION OF THE AB AUR SYSTEM: CONFIRMATION OF A PROTOPLANET
- Program Type
- Normal
- PI / COI
- BOCCALETTI/ LACOUR/ MILLI/ MAIRE/ BECK/ PIETU/ TANG/ DI FOLCO/ DUTREY/ GUILLOTEAU/ PANTIN/ HUELAMO
Target
- ID
- 36917
- Name
- AB_Aur
- RA
- 73.94102083333334
- DEC
- 30.5511925
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 | 46.3160 | 46.8270 | 41.9000 | 41.8000 |
| U1-U3 | 88.7080 | 89.5790 | 46.5000 | 46.2000 |
| U1-U4 | 129.3630 | 129.6480 | 62.8050 | 62.0630 |
| U2-U3 | 42.7020 | 43.0430 | 51.5000 | 51.0000 |
| U2-U4 | 87.6720 | 87.2460 | 73.6780 | 72.7870 |
| U3-U4 | 50.7710 | 49.8900 | 92.2150 | 91.4400 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 108.227A.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59952.16432177 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942915 |
| DEC | 30.55093 |
| 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 | 46.316 |
| HIERARCH ESO ISS PBL12 END | 46.827 |
| HIERARCH ESO ISS PBLA12 START | 41.9 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 88.708 |
| HIERARCH ESO ISS PBL13 END | 89.579 |
| HIERARCH ESO ISS PBLA13 START | 46.5 |
| HIERARCH ESO ISS PBLA13 END | 46.2 |
| HIERARCH ESO ISS PBL14 START | 129.363 |
| HIERARCH ESO ISS PBL14 END | 129.648 |
| HIERARCH ESO ISS PBLA14 START | 62.805 |
| HIERARCH ESO ISS PBLA14 END | 62.063 |
| HIERARCH ESO ISS PBL23 START | 42.702 |
| HIERARCH ESO ISS PBL23 END | 43.043 |
| HIERARCH ESO ISS PBLA23 START | 51.5 |
| HIERARCH ESO ISS PBLA23 END | 51.0 |
| HIERARCH ESO ISS PBL24 START | 87.672 |
| HIERARCH ESO ISS PBL24 END | 87.246 |
| HIERARCH ESO ISS PBLA24 START | 73.678 |
| HIERARCH ESO ISS PBLA24 END | 72.787 |
| HIERARCH ESO ISS PBL34 START | 50.771 |
| HIERARCH ESO ISS PBL34 END | 49.89 |
| HIERARCH ESO ISS PBLA34 START | 92.215 |
| HIERARCH ESO ISS PBLA34 END | 91.44 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004363 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004901 |
| HIERARCH ESO ISS AMBI TEMP | 11.5 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |