Exposure
- ID
- GRAVI.2022-01-23T00:53:57.774_2
- Header ID
- GRAVI.2022-01-23T00:53:57.774
- Date updated
- 2022-01-23 01:01:51 UTC+0000
- Release date
- 2023-01-23 01:01:51 UTC+0000
- UTC Start
- 2022-01-23 00:53:57.774
- UTC End
- 2022-01-23 00:54:21.774
- MJD Start
- 59602.03747424
- MJD End
- 59602.0377520178
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002324
- Ambient temperature (°C)
- 14.52
- Seeing (arcsec)
- 1.84
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 | 34.5130 | 34.5930 | 38.0000 | 38.1000 |
| U1-U3 | 66.4580 | 66.6230 | 47.0000 | 47.1000 |
| U1-U4 | 111.3190 | 111.5080 | 75.4410 | 75.3690 |
| U2-U3 | 32.8190 | 32.8990 | 56.5000 | 56.5000 |
| U2-U4 | 86.4900 | 86.5550 | 89.4760 | 89.3790 |
| U3-U4 | 61.5990 | 61.5700 | 106.3280 | 106.2380 |
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 | 59602.03747424 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942871 |
| DEC | 30.551 |
| 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 | 34.513 |
| HIERARCH ESO ISS PBL12 END | 34.593 |
| HIERARCH ESO ISS PBLA12 START | 38.0 |
| HIERARCH ESO ISS PBLA12 END | 38.1 |
| HIERARCH ESO ISS PBL13 START | 66.458 |
| HIERARCH ESO ISS PBL13 END | 66.623 |
| HIERARCH ESO ISS PBLA13 START | 47.0 |
| HIERARCH ESO ISS PBLA13 END | 47.1 |
| HIERARCH ESO ISS PBL14 START | 111.319 |
| HIERARCH ESO ISS PBL14 END | 111.508 |
| HIERARCH ESO ISS PBLA14 START | 75.441 |
| HIERARCH ESO ISS PBLA14 END | 75.369 |
| HIERARCH ESO ISS PBL23 START | 32.819 |
| HIERARCH ESO ISS PBL23 END | 32.899 |
| HIERARCH ESO ISS PBLA23 START | 56.5 |
| HIERARCH ESO ISS PBLA23 END | 56.5 |
| HIERARCH ESO ISS PBL24 START | 86.49 |
| HIERARCH ESO ISS PBL24 END | 86.555 |
| HIERARCH ESO ISS PBLA24 START | 89.476 |
| HIERARCH ESO ISS PBLA24 END | 89.379 |
| HIERARCH ESO ISS PBL34 START | 61.599 |
| HIERARCH ESO ISS PBL34 END | 61.57 |
| HIERARCH ESO ISS PBLA34 START | 106.328 |
| HIERARCH ESO ISS PBLA34 END | 106.238 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002324 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002324 |
| HIERARCH ESO ISS AMBI TEMP | 14.52 |
| HIERARCH ESO ISS AMBI FWHM START | 1.84 |
| HIERARCH ESO ISS AMBI FWHM END | 1.84 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |