Exposure
- ID
- GRAVI.2023-01-08T03:40:40.360_2
- Header ID
- GRAVI.2023-01-08T03:40:40.360
- Date updated
- 2023-01-08 03:50:28 UTC+0000
- Release date
- 2024-01-08 03:50:28 UTC+0000
- UTC Start
- 2023-01-08 03:40:40.360
- UTC End
- 2023-01-08 03:41:04.360
- MJD Start
- 59952.15324491
- MJD End
- 59952.1535226878
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004704
- Ambient temperature (°C)
- 11.55
- Seeing (arcsec)
- 0.66
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 | 44.9770 | 45.0400 | 42.0000 | 42.0000 |
| U1-U3 | 86.3840 | 86.4950 | 47.1000 | 47.1000 |
| U1-U4 | 128.3790 | 128.4330 | 64.6200 | 64.5380 |
| U2-U3 | 41.7680 | 41.8130 | 52.5000 | 52.5000 |
| U2-U4 | 88.5460 | 88.5120 | 75.8640 | 75.7650 |
| U3-U4 | 52.8590 | 52.7680 | 94.1190 | 94.0320 |
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 | 59952.15324491 |
| 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 | 44.977 |
| HIERARCH ESO ISS PBL12 END | 45.04 |
| HIERARCH ESO ISS PBLA12 START | 42.0 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 86.384 |
| HIERARCH ESO ISS PBL13 END | 86.495 |
| HIERARCH ESO ISS PBLA13 START | 47.1 |
| HIERARCH ESO ISS PBLA13 END | 47.1 |
| HIERARCH ESO ISS PBL14 START | 128.379 |
| HIERARCH ESO ISS PBL14 END | 128.433 |
| HIERARCH ESO ISS PBLA14 START | 64.62 |
| HIERARCH ESO ISS PBLA14 END | 64.538 |
| HIERARCH ESO ISS PBL23 START | 41.768 |
| HIERARCH ESO ISS PBL23 END | 41.813 |
| HIERARCH ESO ISS PBLA23 START | 52.5 |
| HIERARCH ESO ISS PBLA23 END | 52.5 |
| HIERARCH ESO ISS PBL24 START | 88.546 |
| HIERARCH ESO ISS PBL24 END | 88.512 |
| HIERARCH ESO ISS PBLA24 START | 75.864 |
| HIERARCH ESO ISS PBLA24 END | 75.765 |
| HIERARCH ESO ISS PBL34 START | 52.859 |
| HIERARCH ESO ISS PBL34 END | 52.768 |
| HIERARCH ESO ISS PBLA34 START | 94.119 |
| HIERARCH ESO ISS PBLA34 END | 94.032 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004704 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004704 |
| HIERARCH ESO ISS AMBI TEMP | 11.55 |
| HIERARCH ESO ISS AMBI FWHM START | 0.66 |
| 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 |