Exposure
- ID
- GRAVI.2023-02-11T01:49:50.917_2
- Header ID
- GRAVI.2023-02-11T01:49:50.917
- Date updated
- 2023-02-11 02:05:49 UTC+0000
- Release date
- 2024-02-11 02:05:49 UTC+0000
- UTC Start
- 2023-02-11 01:49:50.917
- UTC End
- 2023-02-11 01:55:10.917
- MJD Start
- 59986.07628376
- MJD End
- 59986.0799874637
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0067195
- Ambient temperature (°C)
- 15.16
- Seeing (arcsec)
- 0.63
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 | 46.8730 | 47.3180 | 41.8000 | 41.7000 |
| U1-U3 | 89.6570 | 90.4080 | 46.2000 | 45.9000 |
| U1-U4 | 129.6710 | 129.8700 | 61.9940 | 61.3190 |
| U2-U3 | 43.0740 | 43.3640 | 51.0000 | 50.6000 |
| U2-U4 | 87.2050 | 86.7840 | 72.7030 | 71.8920 |
| U3-U4 | 49.8060 | 48.9910 | 91.3670 | 90.6610 |
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 | 59986.07628376 |
| 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 | 46.873 |
| HIERARCH ESO ISS PBL12 END | 47.318 |
| HIERARCH ESO ISS PBLA12 START | 41.8 |
| HIERARCH ESO ISS PBLA12 END | 41.7 |
| HIERARCH ESO ISS PBL13 START | 89.657 |
| HIERARCH ESO ISS PBL13 END | 90.408 |
| HIERARCH ESO ISS PBLA13 START | 46.2 |
| HIERARCH ESO ISS PBLA13 END | 45.9 |
| HIERARCH ESO ISS PBL14 START | 129.671 |
| HIERARCH ESO ISS PBL14 END | 129.87 |
| HIERARCH ESO ISS PBLA14 START | 61.994 |
| HIERARCH ESO ISS PBLA14 END | 61.319 |
| HIERARCH ESO ISS PBL23 START | 43.074 |
| HIERARCH ESO ISS PBL23 END | 43.364 |
| HIERARCH ESO ISS PBLA23 START | 51.0 |
| HIERARCH ESO ISS PBLA23 END | 50.6 |
| HIERARCH ESO ISS PBL24 START | 87.205 |
| HIERARCH ESO ISS PBL24 END | 86.784 |
| HIERARCH ESO ISS PBLA24 START | 72.703 |
| HIERARCH ESO ISS PBLA24 END | 71.892 |
| HIERARCH ESO ISS PBL34 START | 49.806 |
| HIERARCH ESO ISS PBL34 END | 48.991 |
| HIERARCH ESO ISS PBLA34 START | 91.367 |
| HIERARCH ESO ISS PBLA34 END | 90.661 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007141 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006298 |
| HIERARCH ESO ISS AMBI TEMP | 15.16 |
| HIERARCH ESO ISS AMBI FWHM START | 0.56 |
| HIERARCH ESO ISS AMBI FWHM END | 0.7 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |