Exposure
- ID
- GRAVI.2023-02-11T01:24:23.853_2
- Header ID
- GRAVI.2023-02-11T01:24:23.853
- Date updated
- 2023-02-11 01:36:00 UTC+0000
- Release date
- 2024-02-11 01:36:00 UTC+0000
- UTC Start
- 2023-02-11 01:24:23.853
- UTC End
- 2023-02-11 01:29:43.853
- MJD Start
- 59986.05860941
- MJD End
- 59986.0623131137
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0056795
- Ambient temperature (°C)
- 15.36
- Seeing (arcsec)
- 0.69
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 | 44.7520 | 45.2420 | 42.1000 | 42.0000 |
| U1-U3 | 85.9900 | 86.8490 | 47.2000 | 47.0000 |
| U1-U4 | 128.1830 | 128.6000 | 64.9070 | 64.2730 |
| U2-U3 | 41.6060 | 41.9570 | 52.7000 | 52.3000 |
| U2-U4 | 88.6600 | 88.3990 | 76.2100 | 75.4450 |
| U3-U4 | 53.1790 | 52.4700 | 94.4200 | 93.7530 |
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 | 59986.05860941 |
| 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 | 339.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 44.752 |
| HIERARCH ESO ISS PBL12 END | 45.242 |
| HIERARCH ESO ISS PBLA12 START | 42.1 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 85.99 |
| HIERARCH ESO ISS PBL13 END | 86.849 |
| HIERARCH ESO ISS PBLA13 START | 47.2 |
| HIERARCH ESO ISS PBLA13 END | 47.0 |
| HIERARCH ESO ISS PBL14 START | 128.183 |
| HIERARCH ESO ISS PBL14 END | 128.6 |
| HIERARCH ESO ISS PBLA14 START | 64.907 |
| HIERARCH ESO ISS PBLA14 END | 64.273 |
| HIERARCH ESO ISS PBL23 START | 41.606 |
| HIERARCH ESO ISS PBL23 END | 41.957 |
| HIERARCH ESO ISS PBLA23 START | 52.7 |
| HIERARCH ESO ISS PBLA23 END | 52.3 |
| HIERARCH ESO ISS PBL24 START | 88.66 |
| HIERARCH ESO ISS PBL24 END | 88.399 |
| HIERARCH ESO ISS PBLA24 START | 76.21 |
| HIERARCH ESO ISS PBLA24 END | 75.445 |
| HIERARCH ESO ISS PBL34 START | 53.179 |
| HIERARCH ESO ISS PBL34 END | 52.47 |
| HIERARCH ESO ISS PBLA34 START | 94.42 |
| HIERARCH ESO ISS PBLA34 END | 93.753 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005441 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005918 |
| HIERARCH ESO ISS AMBI TEMP | 15.36 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.68 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |