Exposure
- ID
- GRAVI.2023-01-08T03:12:16.289_2
- Header ID
- GRAVI.2023-01-08T03:12:16.289
- 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 03:12:16.289
- UTC End
- 2023-01-08 03:12:40.289
- MJD Start
- 59952.13352186
- MJD End
- 59952.1337996378
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00452
- Ambient temperature (°C)
- 11.77
- Seeing (arcsec)
- 0.615
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 | 42.4050 | 42.4770 | 41.9000 | 41.9000 |
| U1-U3 | 81.7750 | 81.9070 | 47.8000 | 47.8000 |
| U1-U4 | 125.6370 | 125.7280 | 67.7000 | 67.6200 |
| U2-U3 | 39.8340 | 39.8900 | 54.1000 | 54.1000 |
| U2-U4 | 89.3710 | 89.3610 | 79.6060 | 79.5070 |
| U3-U4 | 56.0990 | 56.0200 | 97.4020 | 97.3150 |
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 | 59952.13352186 |
| 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 | 48.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 80 |
| HIERARCH ESO ISS PBL12 START | 42.405 |
| HIERARCH ESO ISS PBL12 END | 42.477 |
| HIERARCH ESO ISS PBLA12 START | 41.9 |
| HIERARCH ESO ISS PBLA12 END | 41.9 |
| HIERARCH ESO ISS PBL13 START | 81.775 |
| HIERARCH ESO ISS PBL13 END | 81.907 |
| HIERARCH ESO ISS PBLA13 START | 47.8 |
| HIERARCH ESO ISS PBLA13 END | 47.8 |
| HIERARCH ESO ISS PBL14 START | 125.637 |
| HIERARCH ESO ISS PBL14 END | 125.728 |
| HIERARCH ESO ISS PBLA14 START | 67.7 |
| HIERARCH ESO ISS PBLA14 END | 67.62 |
| HIERARCH ESO ISS PBL23 START | 39.834 |
| HIERARCH ESO ISS PBL23 END | 39.89 |
| HIERARCH ESO ISS PBLA23 START | 54.1 |
| HIERARCH ESO ISS PBLA23 END | 54.1 |
| HIERARCH ESO ISS PBL24 START | 89.371 |
| HIERARCH ESO ISS PBL24 END | 89.361 |
| HIERARCH ESO ISS PBLA24 START | 79.606 |
| HIERARCH ESO ISS PBLA24 END | 79.507 |
| HIERARCH ESO ISS PBL34 START | 56.099 |
| HIERARCH ESO ISS PBL34 END | 56.02 |
| HIERARCH ESO ISS PBLA34 START | 97.402 |
| HIERARCH ESO ISS PBLA34 END | 97.315 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00452 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00452 |
| HIERARCH ESO ISS AMBI TEMP | 11.77 |
| HIERARCH ESO ISS AMBI FWHM START | 0.63 |
| HIERARCH ESO ISS AMBI FWHM END | 0.6 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |