Exposure
- ID
- GRAVI.2022-01-23T01:12:48.822_2
- Header ID
- GRAVI.2022-01-23T01:12:48.822
- Date updated
- 2022-01-23 01:30:52 UTC+0000
- Release date
- 2023-01-23 01:30:52 UTC+0000
- UTC Start
- 2022-01-23 01:12:48.822
- UTC End
- 2022-01-23 01:18:48.822
- MJD Start
- 59602.05056507
- MJD End
- 59602.054731736665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029775
- Ambient temperature (°C)
- 14.13
- Seeing (arcsec)
- 1.32
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
- 73.94102083333334
- 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 | 36.4740 | 37.1290 | 39.5000 | 40.0000 |
| U1-U3 | 70.4410 | 71.7430 | 47.7000 | 47.8000 |
| U1-U4 | 115.6800 | 117.0150 | 73.6440 | 73.0340 |
| U2-U3 | 34.7210 | 35.3320 | 56.2000 | 56.1000 |
| U2-U4 | 87.8850 | 88.2540 | 87.0980 | 86.3050 |
| U3-U4 | 60.7420 | 60.3880 | 104.1410 | 103.4160 |
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 | 59602.05056507 |
| 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 | 36.474 |
| HIERARCH ESO ISS PBL12 END | 37.129 |
| HIERARCH ESO ISS PBLA12 START | 39.5 |
| HIERARCH ESO ISS PBLA12 END | 40.0 |
| HIERARCH ESO ISS PBL13 START | 70.441 |
| HIERARCH ESO ISS PBL13 END | 71.743 |
| HIERARCH ESO ISS PBLA13 START | 47.7 |
| HIERARCH ESO ISS PBLA13 END | 47.8 |
| HIERARCH ESO ISS PBL14 START | 115.68 |
| HIERARCH ESO ISS PBL14 END | 117.015 |
| HIERARCH ESO ISS PBLA14 START | 73.644 |
| HIERARCH ESO ISS PBLA14 END | 73.034 |
| HIERARCH ESO ISS PBL23 START | 34.721 |
| HIERARCH ESO ISS PBL23 END | 35.332 |
| HIERARCH ESO ISS PBLA23 START | 56.2 |
| HIERARCH ESO ISS PBLA23 END | 56.1 |
| HIERARCH ESO ISS PBL24 START | 87.885 |
| HIERARCH ESO ISS PBL24 END | 88.254 |
| HIERARCH ESO ISS PBLA24 START | 87.098 |
| HIERARCH ESO ISS PBLA24 END | 86.305 |
| HIERARCH ESO ISS PBL34 START | 60.742 |
| HIERARCH ESO ISS PBL34 END | 60.388 |
| HIERARCH ESO ISS PBLA34 START | 104.141 |
| HIERARCH ESO ISS PBLA34 END | 103.416 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00284 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003115 |
| HIERARCH ESO ISS AMBI TEMP | 14.13 |
| HIERARCH ESO ISS AMBI FWHM START | 1.31 |
| HIERARCH ESO ISS AMBI FWHM END | 1.33 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |