Exposure
- ID
- GRAVI.2022-01-23T01:41:00.893_2
- Header ID
- GRAVI.2022-01-23T01:41:00.893
- Date updated
- 2022-01-23 01:55:36 UTC+0000
- Release date
- 2023-01-23 01:55:36 UTC+0000
- UTC Start
- 2022-01-23 01:41:00.893
- UTC End
- 2022-01-23 01:47:00.893
- MJD Start
- 59602.07014923
- MJD End
- 59602.0743158967
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0045985
- Ambient temperature (°C)
- 14.38
- Seeing (arcsec)
- 1.055
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 | 39.3590 | 39.9920 | 41.1000 | 41.3000 |
| U1-U3 | 76.0790 | 77.2840 | 48.1000 | 48.1000 |
| U1-U4 | 121.1240 | 122.1680 | 70.8900 | 70.2560 |
| U2-U3 | 37.3220 | 37.8630 | 55.5000 | 55.2000 |
| U2-U4 | 89.1410 | 89.2860 | 83.5670 | 82.7710 |
| U3-U4 | 58.9060 | 58.4020 | 100.9340 | 100.2190 |
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 | 59602.07014923 |
| 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 | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 39.359 |
| HIERARCH ESO ISS PBL12 END | 39.992 |
| HIERARCH ESO ISS PBLA12 START | 41.1 |
| HIERARCH ESO ISS PBLA12 END | 41.3 |
| HIERARCH ESO ISS PBL13 START | 76.079 |
| HIERARCH ESO ISS PBL13 END | 77.284 |
| HIERARCH ESO ISS PBLA13 START | 48.1 |
| HIERARCH ESO ISS PBLA13 END | 48.1 |
| HIERARCH ESO ISS PBL14 START | 121.124 |
| HIERARCH ESO ISS PBL14 END | 122.168 |
| HIERARCH ESO ISS PBLA14 START | 70.89 |
| HIERARCH ESO ISS PBLA14 END | 70.256 |
| HIERARCH ESO ISS PBL23 START | 37.322 |
| HIERARCH ESO ISS PBL23 END | 37.863 |
| HIERARCH ESO ISS PBLA23 START | 55.5 |
| HIERARCH ESO ISS PBLA23 END | 55.2 |
| HIERARCH ESO ISS PBL24 START | 89.141 |
| HIERARCH ESO ISS PBL24 END | 89.286 |
| HIERARCH ESO ISS PBLA24 START | 83.567 |
| HIERARCH ESO ISS PBLA24 END | 82.771 |
| HIERARCH ESO ISS PBL34 START | 58.906 |
| HIERARCH ESO ISS PBL34 END | 58.402 |
| HIERARCH ESO ISS PBLA34 START | 100.934 |
| HIERARCH ESO ISS PBLA34 END | 100.219 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003928 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005269 |
| HIERARCH ESO ISS AMBI TEMP | 14.38 |
| HIERARCH ESO ISS AMBI FWHM START | 1.2 |
| HIERARCH ESO ISS AMBI FWHM END | 0.91 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |