Exposure
- ID
- GRAVI.2023-01-08T02:58:49.255_2
- Header ID
- GRAVI.2023-01-08T02:58:49.255
- Date updated
- 2023-01-08 03:15:35 UTC+0000
- Release date
- 2024-01-08 03:15:35 UTC+0000
- UTC Start
- 2023-01-08 02:58:49.255
- UTC End
- 2023-01-08 03:04:49.255
- MJD Start
- 59952.12418119
- MJD End
- 59952.1283478567
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0039735
- Ambient temperature (°C)
- 11.75
- Seeing (arcsec)
- 0.635
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 | 41.1190 | 41.7270 | 41.7000 | 41.8000 |
| U1-U3 | 79.4020 | 80.5300 | 48.0000 | 47.9000 |
| U1-U4 | 123.8910 | 124.7460 | 69.0950 | 68.4450 |
| U2-U3 | 38.8020 | 39.2950 | 54.7000 | 54.5000 |
| U2-U4 | 89.4200 | 89.4250 | 81.3240 | 80.5210 |
| U3-U4 | 57.4050 | 56.8110 | 98.9250 | 98.2120 |
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 | 59952.12418119 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942915 |
| DEC | 30.55093 |
| 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 | 41.119 |
| HIERARCH ESO ISS PBL12 END | 41.727 |
| HIERARCH ESO ISS PBLA12 START | 41.7 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 79.402 |
| HIERARCH ESO ISS PBL13 END | 80.53 |
| HIERARCH ESO ISS PBLA13 START | 48.0 |
| HIERARCH ESO ISS PBLA13 END | 47.9 |
| HIERARCH ESO ISS PBL14 START | 123.891 |
| HIERARCH ESO ISS PBL14 END | 124.746 |
| HIERARCH ESO ISS PBLA14 START | 69.095 |
| HIERARCH ESO ISS PBLA14 END | 68.445 |
| HIERARCH ESO ISS PBL23 START | 38.802 |
| HIERARCH ESO ISS PBL23 END | 39.295 |
| HIERARCH ESO ISS PBLA23 START | 54.7 |
| HIERARCH ESO ISS PBLA23 END | 54.5 |
| HIERARCH ESO ISS PBL24 START | 89.42 |
| HIERARCH ESO ISS PBL24 END | 89.425 |
| HIERARCH ESO ISS PBLA24 START | 81.324 |
| HIERARCH ESO ISS PBLA24 END | 80.521 |
| HIERARCH ESO ISS PBL34 START | 57.405 |
| HIERARCH ESO ISS PBL34 END | 56.811 |
| HIERARCH ESO ISS PBLA34 START | 98.925 |
| HIERARCH ESO ISS PBLA34 END | 98.212 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003354 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004593 |
| HIERARCH ESO ISS AMBI TEMP | 11.75 |
| HIERARCH ESO ISS AMBI FWHM START | 0.66 |
| HIERARCH ESO ISS AMBI FWHM END | 0.61 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |