Exposure
- ID
- GRAVI.2023-02-11T01:46:53.910_2
- Header ID
- GRAVI.2023-02-11T01:46:53.910
- Date updated
- 2023-02-11 01:50:49 UTC+0000
- Release date
- 2024-02-11 01:50:49 UTC+0000
- UTC Start
- 2023-02-11 01:46:53.910
- UTC End
- 2023-02-11 01:47:17.910
- MJD Start
- 59986.07423507
- MJD End
- 59986.0745128478
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007557
- Ambient temperature (°C)
- 15.12
- Seeing (arcsec)
- 0.47
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 | 46.6420 | 46.7010 | 41.8000 | 41.8000 |
| U1-U3 | 89.2640 | 89.3640 | 46.3000 | 46.3000 |
| U1-U4 | 129.5510 | 129.5820 | 62.3350 | 62.2490 |
| U2-U3 | 42.9210 | 42.9600 | 51.2000 | 51.1000 |
| U2-U4 | 87.4070 | 87.3570 | 73.1130 | 73.0100 |
| U3-U4 | 50.2150 | 50.1120 | 91.7240 | 91.6340 |
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 | 59986.07423507 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942934 |
| DEC | 30.55096 |
| 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 | 46.642 |
| HIERARCH ESO ISS PBL12 END | 46.701 |
| HIERARCH ESO ISS PBLA12 START | 41.8 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 89.264 |
| HIERARCH ESO ISS PBL13 END | 89.364 |
| HIERARCH ESO ISS PBLA13 START | 46.3 |
| HIERARCH ESO ISS PBLA13 END | 46.3 |
| HIERARCH ESO ISS PBL14 START | 129.551 |
| HIERARCH ESO ISS PBL14 END | 129.582 |
| HIERARCH ESO ISS PBLA14 START | 62.335 |
| HIERARCH ESO ISS PBLA14 END | 62.249 |
| HIERARCH ESO ISS PBL23 START | 42.921 |
| HIERARCH ESO ISS PBL23 END | 42.96 |
| HIERARCH ESO ISS PBLA23 START | 51.2 |
| HIERARCH ESO ISS PBLA23 END | 51.1 |
| HIERARCH ESO ISS PBL24 START | 87.407 |
| HIERARCH ESO ISS PBL24 END | 87.357 |
| HIERARCH ESO ISS PBLA24 START | 73.113 |
| HIERARCH ESO ISS PBLA24 END | 73.01 |
| HIERARCH ESO ISS PBL34 START | 50.215 |
| HIERARCH ESO ISS PBL34 END | 50.112 |
| HIERARCH ESO ISS PBLA34 START | 91.724 |
| HIERARCH ESO ISS PBLA34 END | 91.634 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007557 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007557 |
| HIERARCH ESO ISS AMBI TEMP | 15.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.47 |
| HIERARCH ESO ISS AMBI FWHM END | 0.47 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |