Exposure
- ID
- GRAVI.2022-01-23T00:59:33.789_2
- Header ID
- GRAVI.2022-01-23T00:59:33.789
- Date updated
- 2022-01-23 01:16:13 UTC+0000
- Release date
- 2023-01-23 01:16:12 UTC+0000
- UTC Start
- 2022-01-23 00:59:33.789
- UTC End
- 2022-01-23 01:05:33.789
- MJD Start
- 59602.0413633
- MJD End
- 59602.045529966665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0032570000000000003
- Ambient temperature (°C)
- 14.48
- Seeing (arcsec)
- 1.435
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 | 35.0950 | 35.7500 | 38.5000 | 39.0000 |
| U1-U3 | 67.6550 | 68.9870 | 47.3000 | 47.5000 |
| U1-U4 | 112.6730 | 114.1360 | 74.9110 | 74.3110 |
| U2-U3 | 33.3970 | 34.0340 | 56.5000 | 56.4000 |
| U2-U4 | 86.9500 | 87.4220 | 88.7670 | 87.9730 |
| U3-U4 | 61.3760 | 61.0930 | 105.6740 | 104.9430 |
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 | 59602.0413633 |
| 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 | 35.095 |
| HIERARCH ESO ISS PBL12 END | 35.75 |
| HIERARCH ESO ISS PBLA12 START | 38.5 |
| HIERARCH ESO ISS PBLA12 END | 39.0 |
| HIERARCH ESO ISS PBL13 START | 67.655 |
| HIERARCH ESO ISS PBL13 END | 68.987 |
| HIERARCH ESO ISS PBLA13 START | 47.3 |
| HIERARCH ESO ISS PBLA13 END | 47.5 |
| HIERARCH ESO ISS PBL14 START | 112.673 |
| HIERARCH ESO ISS PBL14 END | 114.136 |
| HIERARCH ESO ISS PBLA14 START | 74.911 |
| HIERARCH ESO ISS PBLA14 END | 74.311 |
| HIERARCH ESO ISS PBL23 START | 33.397 |
| HIERARCH ESO ISS PBL23 END | 34.034 |
| HIERARCH ESO ISS PBLA23 START | 56.5 |
| HIERARCH ESO ISS PBLA23 END | 56.4 |
| HIERARCH ESO ISS PBL24 START | 86.95 |
| HIERARCH ESO ISS PBL24 END | 87.422 |
| HIERARCH ESO ISS PBLA24 START | 88.767 |
| HIERARCH ESO ISS PBLA24 END | 87.973 |
| HIERARCH ESO ISS PBL34 START | 61.376 |
| HIERARCH ESO ISS PBL34 END | 61.093 |
| HIERARCH ESO ISS PBLA34 START | 105.674 |
| HIERARCH ESO ISS PBLA34 END | 104.943 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002955 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003559 |
| HIERARCH ESO ISS AMBI TEMP | 14.48 |
| HIERARCH ESO ISS AMBI FWHM START | 1.55 |
| HIERARCH ESO ISS AMBI FWHM END | 1.32 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |