Exposure
- ID
- GRAVI.2023-02-11T00:59:20.789_2
- Header ID
- GRAVI.2023-02-11T00:59:20.789
- Date updated
- 2023-02-11 01:11:57 UTC+0000
- Release date
- 2024-02-11 01:11:57 UTC+0000
- UTC Start
- 2023-02-11 00:59:20.789
- UTC End
- 2023-02-11 01:04:40.789
- MJD Start
- 59986.04121284
- MJD End
- 59986.0449165437
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005812
- Ambient temperature (°C)
- 15.44
- Seeing (arcsec)
- 0.74
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 | 42.4790 | 43.0070 | 41.9000 | 42.0000 |
| U1-U3 | 81.9100 | 82.8710 | 47.8000 | 47.7000 |
| U1-U4 | 125.7310 | 126.3730 | 67.6170 | 67.0170 |
| U2-U3 | 39.8920 | 40.3020 | 54.1000 | 53.8000 |
| U2-U4 | 89.3610 | 89.2680 | 79.5040 | 78.7710 |
| U3-U4 | 56.0180 | 55.4200 | 97.3110 | 96.6640 |
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 | 59986.04121284 |
| 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 | 42.479 |
| HIERARCH ESO ISS PBL12 END | 43.007 |
| HIERARCH ESO ISS PBLA12 START | 41.9 |
| HIERARCH ESO ISS PBLA12 END | 42.0 |
| HIERARCH ESO ISS PBL13 START | 81.91 |
| HIERARCH ESO ISS PBL13 END | 82.871 |
| HIERARCH ESO ISS PBLA13 START | 47.8 |
| HIERARCH ESO ISS PBLA13 END | 47.7 |
| HIERARCH ESO ISS PBL14 START | 125.731 |
| HIERARCH ESO ISS PBL14 END | 126.373 |
| HIERARCH ESO ISS PBLA14 START | 67.617 |
| HIERARCH ESO ISS PBLA14 END | 67.017 |
| HIERARCH ESO ISS PBL23 START | 39.892 |
| HIERARCH ESO ISS PBL23 END | 40.302 |
| HIERARCH ESO ISS PBLA23 START | 54.1 |
| HIERARCH ESO ISS PBLA23 END | 53.8 |
| HIERARCH ESO ISS PBL24 START | 89.361 |
| HIERARCH ESO ISS PBL24 END | 89.268 |
| HIERARCH ESO ISS PBLA24 START | 79.504 |
| HIERARCH ESO ISS PBLA24 END | 78.771 |
| HIERARCH ESO ISS PBL34 START | 56.018 |
| HIERARCH ESO ISS PBL34 END | 55.42 |
| HIERARCH ESO ISS PBLA34 START | 97.311 |
| HIERARCH ESO ISS PBLA34 END | 96.664 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006163 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005461 |
| HIERARCH ESO ISS AMBI TEMP | 15.44 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.77 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |