Exposure
- ID
- GRAVI.2022-01-23T01:06:09.805_2
- Header ID
- GRAVI.2022-01-23T01:06:09.805
- Date updated
- 2022-01-23 01:20:40 UTC+0000
- Release date
- 2023-01-23 01:20:40 UTC+0000
- UTC Start
- 2022-01-23 01:06:09.805
- UTC End
- 2022-01-23 01:12:09.805
- MJD Start
- 59602.04594682
- MJD End
- 59602.0501134867
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031995
- Ambient temperature (°C)
- 14.36
- Seeing (arcsec)
- 1.315
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
- 73.9410208333333
- 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 | 35.7850 | 36.4420 | 39.1000 | 39.5000 |
| U1-U3 | 69.0570 | 70.3790 | 47.5000 | 47.7000 |
| U1-U4 | 114.2120 | 115.6150 | 74.2790 | 73.6730 |
| U2-U3 | 34.0670 | 34.6920 | 56.4000 | 56.3000 |
| U2-U4 | 87.4450 | 87.8670 | 87.9310 | 87.1350 |
| U3-U4 | 61.0770 | 60.7580 | 104.9040 | 104.1750 |
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 | 59602.04594682 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942871 |
| DEC | 30.551 |
| 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 | 35.785 |
| HIERARCH ESO ISS PBL12 END | 36.442 |
| HIERARCH ESO ISS PBLA12 START | 39.1 |
| HIERARCH ESO ISS PBLA12 END | 39.5 |
| HIERARCH ESO ISS PBL13 START | 69.057 |
| HIERARCH ESO ISS PBL13 END | 70.379 |
| HIERARCH ESO ISS PBLA13 START | 47.5 |
| HIERARCH ESO ISS PBLA13 END | 47.7 |
| HIERARCH ESO ISS PBL14 START | 114.212 |
| HIERARCH ESO ISS PBL14 END | 115.615 |
| HIERARCH ESO ISS PBLA14 START | 74.279 |
| HIERARCH ESO ISS PBLA14 END | 73.673 |
| HIERARCH ESO ISS PBL23 START | 34.067 |
| HIERARCH ESO ISS PBL23 END | 34.692 |
| HIERARCH ESO ISS PBLA23 START | 56.4 |
| HIERARCH ESO ISS PBLA23 END | 56.3 |
| HIERARCH ESO ISS PBL24 START | 87.445 |
| HIERARCH ESO ISS PBL24 END | 87.867 |
| HIERARCH ESO ISS PBLA24 START | 87.931 |
| HIERARCH ESO ISS PBLA24 END | 87.135 |
| HIERARCH ESO ISS PBL34 START | 61.077 |
| HIERARCH ESO ISS PBL34 END | 60.758 |
| HIERARCH ESO ISS PBLA34 START | 104.904 |
| HIERARCH ESO ISS PBLA34 END | 104.175 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003559 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00284 |
| HIERARCH ESO ISS AMBI TEMP | 14.36 |
| HIERARCH ESO ISS AMBI FWHM START | 1.32 |
| HIERARCH ESO ISS AMBI FWHM END | 1.31 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |