Exposure
- ID
- GRAVI.2023-02-11T00:50:44.768_2
- Header ID
- GRAVI.2023-02-11T00:50:44.768
- Date updated
- 2023-02-11 00:56:08 UTC+0000
- Release date
- 2024-02-11 00:56:08 UTC+0000
- UTC Start
- 2023-02-11 00:50:44.768
- UTC End
- 2023-02-11 00:51:08.768
- MJD Start
- 59986.03524037
- MJD End
- 59986.03551814778
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006404
- Ambient temperature (°C)
- 15.27
- Seeing (arcsec)
- 0.62
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 | 41.6620 | 41.7320 | 41.8000 | 41.8000 |
| U1-U3 | 80.4090 | 80.5390 | 48.0000 | 47.9000 |
| U1-U4 | 124.6570 | 124.7530 | 68.5150 | 68.4390 |
| U2-U3 | 39.2420 | 39.2990 | 54.5000 | 54.5000 |
| U2-U4 | 89.4270 | 89.4250 | 80.6080 | 80.5140 |
| U3-U4 | 56.8760 | 56.8060 | 98.2880 | 98.2050 |
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 | 59986.03524037 |
| 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 | 48.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 80 |
| HIERARCH ESO ISS PBL12 START | 41.662 |
| HIERARCH ESO ISS PBL12 END | 41.732 |
| HIERARCH ESO ISS PBLA12 START | 41.8 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 80.409 |
| HIERARCH ESO ISS PBL13 END | 80.539 |
| HIERARCH ESO ISS PBLA13 START | 48.0 |
| HIERARCH ESO ISS PBLA13 END | 47.9 |
| HIERARCH ESO ISS PBL14 START | 124.657 |
| HIERARCH ESO ISS PBL14 END | 124.753 |
| HIERARCH ESO ISS PBLA14 START | 68.515 |
| HIERARCH ESO ISS PBLA14 END | 68.439 |
| HIERARCH ESO ISS PBL23 START | 39.242 |
| HIERARCH ESO ISS PBL23 END | 39.299 |
| HIERARCH ESO ISS PBLA23 START | 54.5 |
| HIERARCH ESO ISS PBLA23 END | 54.5 |
| HIERARCH ESO ISS PBL24 START | 89.427 |
| HIERARCH ESO ISS PBL24 END | 89.425 |
| HIERARCH ESO ISS PBLA24 START | 80.608 |
| HIERARCH ESO ISS PBLA24 END | 80.514 |
| HIERARCH ESO ISS PBL34 START | 56.876 |
| HIERARCH ESO ISS PBL34 END | 56.806 |
| HIERARCH ESO ISS PBLA34 START | 98.288 |
| HIERARCH ESO ISS PBLA34 END | 98.205 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006404 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006404 |
| HIERARCH ESO ISS AMBI TEMP | 15.27 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.62 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |