Exposure
- ID
- GRAVI.2023-01-08T03:05:25.272_2
- Header ID
- GRAVI.2023-01-08T03:05:25.272
- Date updated
- 2023-01-08 03:20:39 UTC+0000
- Release date
- 2024-01-08 03:20:39 UTC+0000
- UTC Start
- 2023-01-08 03:05:25.272
- UTC End
- 2023-01-08 03:11:25.272
- MJD Start
- 59952.12876472
- MJD End
- 59952.1329313867
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0045565
- Ambient temperature (°C)
- 11.79
- 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
- 73.9410208333333
- 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 | 41.7590 | 42.3580 | 41.8000 | 41.9000 |
| U1-U3 | 80.5890 | 81.6890 | 47.9000 | 47.8000 |
| U1-U4 | 124.7900 | 125.5780 | 68.4110 | 67.7530 |
| U2-U3 | 39.3210 | 39.7970 | 54.4000 | 54.1000 |
| U2-U4 | 89.4240 | 89.3770 | 80.4790 | 79.6710 |
| U3-U4 | 56.7790 | 56.1510 | 98.1740 | 97.4590 |
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 | 59952.12876472 |
| 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 | 41.759 |
| HIERARCH ESO ISS PBL12 END | 42.358 |
| HIERARCH ESO ISS PBLA12 START | 41.8 |
| HIERARCH ESO ISS PBLA12 END | 41.9 |
| HIERARCH ESO ISS PBL13 START | 80.589 |
| HIERARCH ESO ISS PBL13 END | 81.689 |
| HIERARCH ESO ISS PBLA13 START | 47.9 |
| HIERARCH ESO ISS PBLA13 END | 47.8 |
| HIERARCH ESO ISS PBL14 START | 124.79 |
| HIERARCH ESO ISS PBL14 END | 125.578 |
| HIERARCH ESO ISS PBLA14 START | 68.411 |
| HIERARCH ESO ISS PBLA14 END | 67.753 |
| HIERARCH ESO ISS PBL23 START | 39.321 |
| HIERARCH ESO ISS PBL23 END | 39.797 |
| HIERARCH ESO ISS PBLA23 START | 54.4 |
| HIERARCH ESO ISS PBLA23 END | 54.1 |
| HIERARCH ESO ISS PBL24 START | 89.424 |
| HIERARCH ESO ISS PBL24 END | 89.377 |
| HIERARCH ESO ISS PBLA24 START | 80.479 |
| HIERARCH ESO ISS PBLA24 END | 79.671 |
| HIERARCH ESO ISS PBL34 START | 56.779 |
| HIERARCH ESO ISS PBL34 END | 56.151 |
| HIERARCH ESO ISS PBLA34 START | 98.174 |
| HIERARCH ESO ISS PBLA34 END | 97.459 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004593 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00452 |
| HIERARCH ESO ISS AMBI TEMP | 11.79 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |