Exposure
- ID
- GRAVI.2022-01-26T01:34:58.910_2
- Header ID
- GRAVI.2022-01-26T01:34:58.910
- Date updated
- 2022-01-26 01:50:51 UTC+0000
- Release date
- 2023-01-26 01:50:51 UTC+0000
- UTC Start
- 2022-01-26 01:34:58.910
- UTC End
- 2022-01-26 01:40:58.910
- MJD Start
- 59605.06595961
- MJD End
- 59605.07012627667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003431
- Ambient temperature (°C)
- 14.43
- Seeing (arcsec)
- 1.15
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 | 39.9340 | 40.5610 | 41.3000 | 41.5000 |
| U1-U3 | 77.1740 | 78.3570 | 48.1000 | 48.1000 |
| U1-U4 | 122.0740 | 123.0590 | 70.3160 | 69.6760 |
| U2-U3 | 37.8170 | 38.3410 | 55.2000 | 55.0000 |
| U2-U4 | 89.2750 | 89.3740 | 82.8410 | 82.0460 |
| U3-U4 | 58.4470 | 57.9160 | 100.2820 | 99.5700 |
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 | 59605.06595961 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942962 |
| DEC | 30.55095 |
| 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 | 39.934 |
| HIERARCH ESO ISS PBL12 END | 40.561 |
| HIERARCH ESO ISS PBLA12 START | 41.3 |
| HIERARCH ESO ISS PBLA12 END | 41.5 |
| HIERARCH ESO ISS PBL13 START | 77.174 |
| HIERARCH ESO ISS PBL13 END | 78.357 |
| HIERARCH ESO ISS PBLA13 START | 48.1 |
| HIERARCH ESO ISS PBLA13 END | 48.1 |
| HIERARCH ESO ISS PBL14 START | 122.074 |
| HIERARCH ESO ISS PBL14 END | 123.059 |
| HIERARCH ESO ISS PBLA14 START | 70.316 |
| HIERARCH ESO ISS PBLA14 END | 69.676 |
| HIERARCH ESO ISS PBL23 START | 37.817 |
| HIERARCH ESO ISS PBL23 END | 38.341 |
| HIERARCH ESO ISS PBLA23 START | 55.2 |
| HIERARCH ESO ISS PBLA23 END | 55.0 |
| HIERARCH ESO ISS PBL24 START | 89.275 |
| HIERARCH ESO ISS PBL24 END | 89.374 |
| HIERARCH ESO ISS PBLA24 START | 82.841 |
| HIERARCH ESO ISS PBLA24 END | 82.046 |
| HIERARCH ESO ISS PBL34 START | 58.447 |
| HIERARCH ESO ISS PBL34 END | 57.916 |
| HIERARCH ESO ISS PBLA34 START | 100.282 |
| HIERARCH ESO ISS PBLA34 END | 99.57 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003637 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003225 |
| HIERARCH ESO ISS AMBI TEMP | 14.43 |
| HIERARCH ESO ISS AMBI FWHM START | 0.89 |
| HIERARCH ESO ISS AMBI FWHM END | 1.41 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |