Exposure
- ID
- GRAVI.2023-02-11T01:55:47.932_2
- Header ID
- GRAVI.2023-02-11T01:55:47.932
- Date updated
- 2023-02-11 02:10:31 UTC+0000
- Release date
- 2024-02-11 02:10:31 UTC+0000
- UTC Start
- 2023-02-11 01:55:47.932
- UTC End
- 2023-02-11 02:01:07.932
- MJD Start
- 59986.08041588
- MJD End
- 59986.084119583706
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006228
- Ambient temperature (°C)
- 15.29
- Seeing (arcsec)
- 0.755
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 | 47.3410 | 47.7750 | 41.6000 | 41.5000 |
| U1-U3 | 90.4470 | 91.1720 | 45.9000 | 45.6000 |
| U1-U4 | 129.8800 | 130.0300 | 61.2830 | 60.5980 |
| U2-U3 | 43.3790 | 43.6550 | 50.6000 | 50.1000 |
| U2-U4 | 86.7610 | 86.3040 | 71.8490 | 71.0260 |
| U3-U4 | 48.9470 | 48.1080 | 90.6240 | 89.9060 |
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 | 59986.08041588 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942934 |
| DEC | 30.55096 |
| 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 | 339.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 47.341 |
| HIERARCH ESO ISS PBL12 END | 47.775 |
| HIERARCH ESO ISS PBLA12 START | 41.6 |
| HIERARCH ESO ISS PBLA12 END | 41.5 |
| HIERARCH ESO ISS PBL13 START | 90.447 |
| HIERARCH ESO ISS PBL13 END | 91.172 |
| HIERARCH ESO ISS PBLA13 START | 45.9 |
| HIERARCH ESO ISS PBLA13 END | 45.6 |
| HIERARCH ESO ISS PBL14 START | 129.88 |
| HIERARCH ESO ISS PBL14 END | 130.03 |
| HIERARCH ESO ISS PBLA14 START | 61.283 |
| HIERARCH ESO ISS PBLA14 END | 60.598 |
| HIERARCH ESO ISS PBL23 START | 43.379 |
| HIERARCH ESO ISS PBL23 END | 43.655 |
| HIERARCH ESO ISS PBLA23 START | 50.6 |
| HIERARCH ESO ISS PBLA23 END | 50.1 |
| HIERARCH ESO ISS PBL24 START | 86.761 |
| HIERARCH ESO ISS PBL24 END | 86.304 |
| HIERARCH ESO ISS PBLA24 START | 71.849 |
| HIERARCH ESO ISS PBLA24 END | 71.026 |
| HIERARCH ESO ISS PBL34 START | 48.947 |
| HIERARCH ESO ISS PBL34 END | 48.108 |
| HIERARCH ESO ISS PBLA34 START | 90.624 |
| HIERARCH ESO ISS PBLA34 END | 89.906 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006298 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006158 |
| HIERARCH ESO ISS AMBI TEMP | 15.29 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |