Exposure
- ID
- GRAVI.2023-01-08T03:43:25.368_2
- Header ID
- GRAVI.2023-01-08T03:43:25.368
- Date updated
- 2023-01-08 04:00:42 UTC+0000
- Release date
- 2024-01-08 04:00:42 UTC+0000
- UTC Start
- 2023-01-08 03:43:25.368
- UTC End
- 2023-01-08 03:49:25.368
- MJD Start
- 59952.15515472
- MJD End
- 59952.159321386665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0047825
- Ambient temperature (°C)
- 11.59
- Seeing (arcsec)
- 0.6799999999999999
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 | 45.2150 | 45.7490 | 42.0000 | 42.0000 |
| U1-U3 | 86.8010 | 87.7300 | 47.0000 | 46.8000 |
| U1-U4 | 128.5780 | 128.9870 | 64.3100 | 63.5960 |
| U2-U3 | 41.9380 | 42.3130 | 52.3000 | 51.9000 |
| U2-U4 | 88.4150 | 88.0840 | 75.4900 | 74.6290 |
| U3-U4 | 52.5110 | 51.6950 | 93.7920 | 93.0430 |
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 | 59952.15515472 |
| 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 | 45.215 |
| HIERARCH ESO ISS PBL12 END | 45.749 |
| HIERARCH ESO ISS PBLA12 START | 42.0 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 86.801 |
| HIERARCH ESO ISS PBL13 END | 87.73 |
| HIERARCH ESO ISS PBLA13 START | 47.0 |
| HIERARCH ESO ISS PBLA13 END | 46.8 |
| HIERARCH ESO ISS PBL14 START | 128.578 |
| HIERARCH ESO ISS PBL14 END | 128.987 |
| HIERARCH ESO ISS PBLA14 START | 64.31 |
| HIERARCH ESO ISS PBLA14 END | 63.596 |
| HIERARCH ESO ISS PBL23 START | 41.938 |
| HIERARCH ESO ISS PBL23 END | 42.313 |
| HIERARCH ESO ISS PBLA23 START | 52.3 |
| HIERARCH ESO ISS PBLA23 END | 51.9 |
| HIERARCH ESO ISS PBL24 START | 88.415 |
| HIERARCH ESO ISS PBL24 END | 88.084 |
| HIERARCH ESO ISS PBLA24 START | 75.49 |
| HIERARCH ESO ISS PBLA24 END | 74.629 |
| HIERARCH ESO ISS PBL34 START | 52.511 |
| HIERARCH ESO ISS PBL34 END | 51.695 |
| HIERARCH ESO ISS PBLA34 START | 93.792 |
| HIERARCH ESO ISS PBLA34 END | 93.043 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004465 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.0051 |
| HIERARCH ESO ISS AMBI TEMP | 11.59 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |