Exposure
- ID
- GRAVI.2022-01-26T02:20:56.026_2
- Header ID
- GRAVI.2022-01-26T02:20:56.026
- Date updated
- 2022-01-26 02:30:29 UTC+0000
- Release date
- 2023-01-26 02:30:29 UTC+0000
- UTC Start
- 2022-01-26 02:20:56.026
- UTC End
- 2022-01-26 02:21:20.026
- MJD Start
- 59605.09787067
- MJD End
- 59605.0981484478
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004424
- Ambient temperature (°C)
- 14.67
- Seeing (arcsec)
- 0.96
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 | 44.2780 | 44.3460 | 42.1000 | 42.1000 |
| U1-U3 | 85.1500 | 85.2700 | 47.3000 | 47.3000 |
| U1-U4 | 127.7390 | 127.8050 | 65.5020 | 65.4180 |
| U2-U3 | 41.2590 | 41.3090 | 53.0000 | 52.9000 |
| U2-U4 | 88.8740 | 88.8460 | 76.9310 | 76.8290 |
| U3-U4 | 53.8340 | 53.7420 | 95.0520 | 94.9620 |
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 | 59605.09787067 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942962 |
| DEC | 30.55095 |
| 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 | 44.278 |
| HIERARCH ESO ISS PBL12 END | 44.346 |
| HIERARCH ESO ISS PBLA12 START | 42.1 |
| HIERARCH ESO ISS PBLA12 END | 42.1 |
| HIERARCH ESO ISS PBL13 START | 85.15 |
| HIERARCH ESO ISS PBL13 END | 85.27 |
| HIERARCH ESO ISS PBLA13 START | 47.3 |
| HIERARCH ESO ISS PBLA13 END | 47.3 |
| HIERARCH ESO ISS PBL14 START | 127.739 |
| HIERARCH ESO ISS PBL14 END | 127.805 |
| HIERARCH ESO ISS PBLA14 START | 65.502 |
| HIERARCH ESO ISS PBLA14 END | 65.418 |
| HIERARCH ESO ISS PBL23 START | 41.259 |
| HIERARCH ESO ISS PBL23 END | 41.309 |
| HIERARCH ESO ISS PBLA23 START | 53.0 |
| HIERARCH ESO ISS PBLA23 END | 52.9 |
| HIERARCH ESO ISS PBL24 START | 88.874 |
| HIERARCH ESO ISS PBL24 END | 88.846 |
| HIERARCH ESO ISS PBLA24 START | 76.931 |
| HIERARCH ESO ISS PBLA24 END | 76.829 |
| HIERARCH ESO ISS PBL34 START | 53.834 |
| HIERARCH ESO ISS PBL34 END | 53.742 |
| HIERARCH ESO ISS PBLA34 START | 95.052 |
| HIERARCH ESO ISS PBLA34 END | 94.962 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004424 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004424 |
| HIERARCH ESO ISS AMBI TEMP | 14.67 |
| HIERARCH ESO ISS AMBI FWHM START | 0.96 |
| HIERARCH ESO ISS AMBI FWHM END | 0.96 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |