Exposure
- ID
- GRAVI.2022-01-26T02:24:35.035_2
- Header ID
- GRAVI.2022-01-26T02:24:35.035
- Date updated
- 2022-01-26 02:40:23 UTC+0000
- Release date
- 2023-01-26 02:40:23 UTC+0000
- UTC Start
- 2022-01-26 02:24:35.035
- UTC End
- 2022-01-26 02:30:35.035
- MJD Start
- 59605.1004055
- MJD End
- 59605.1045721667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0038085
- Ambient temperature (°C)
- 14.41
- Seeing (arcsec)
- 1.015
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 | 44.6020 | 45.1480 | 42.1000 | 42.0000 |
| U1-U3 | 85.7230 | 86.6850 | 47.2000 | 47.0000 |
| U1-U4 | 128.0460 | 128.5230 | 65.0980 | 64.3960 |
| U2-U3 | 41.4960 | 41.8900 | 52.8000 | 52.4000 |
| U2-U4 | 88.7320 | 88.4530 | 76.4420 | 75.5940 |
| U3-U4 | 53.3920 | 52.6100 | 94.6240 | 93.8840 |
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 | 59605.1004055 |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 44.602 |
| HIERARCH ESO ISS PBL12 END | 45.148 |
| HIERARCH ESO ISS PBLA12 START | 42.1 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 85.723 |
| HIERARCH ESO ISS PBL13 END | 86.685 |
| HIERARCH ESO ISS PBLA13 START | 47.2 |
| HIERARCH ESO ISS PBLA13 END | 47.0 |
| HIERARCH ESO ISS PBL14 START | 128.046 |
| HIERARCH ESO ISS PBL14 END | 128.523 |
| HIERARCH ESO ISS PBLA14 START | 65.098 |
| HIERARCH ESO ISS PBLA14 END | 64.396 |
| HIERARCH ESO ISS PBL23 START | 41.496 |
| HIERARCH ESO ISS PBL23 END | 41.89 |
| HIERARCH ESO ISS PBLA23 START | 52.8 |
| HIERARCH ESO ISS PBLA23 END | 52.4 |
| HIERARCH ESO ISS PBL24 START | 88.732 |
| HIERARCH ESO ISS PBL24 END | 88.453 |
| HIERARCH ESO ISS PBLA24 START | 76.442 |
| HIERARCH ESO ISS PBLA24 END | 75.594 |
| HIERARCH ESO ISS PBL34 START | 53.392 |
| HIERARCH ESO ISS PBL34 END | 52.61 |
| HIERARCH ESO ISS PBLA34 START | 94.624 |
| HIERARCH ESO ISS PBLA34 END | 93.884 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003845 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003772 |
| HIERARCH ESO ISS AMBI TEMP | 14.41 |
| HIERARCH ESO ISS AMBI FWHM START | 0.93 |
| HIERARCH ESO ISS AMBI FWHM END | 1.1 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |