Exposure
- ID
- GRAVI.2022-01-23T01:47:48.911_2
- Header ID
- GRAVI.2022-01-23T01:47:48.911
- Date updated
- 2022-01-23 01:55:36 UTC+0000
- Release date
- 2023-01-23 01:55:36 UTC+0000
- UTC Start
- 2022-01-23 01:47:48.911
- UTC End
- 2022-01-23 01:48:12.911
- MJD Start
- 59602.07487165
- MJD End
- 59602.0751494278
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005269
- Ambient temperature (°C)
- 14.37
- Seeing (arcsec)
- 0.91
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 | 40.0350 | 40.1120 | 41.3000 | 41.4000 |
| U1-U3 | 77.3660 | 77.5100 | 48.1000 | 48.1000 |
| U1-U4 | 122.2370 | 122.3580 | 70.2120 | 70.1350 |
| U2-U3 | 37.9000 | 37.9640 | 55.2000 | 55.2000 |
| U2-U4 | 89.2940 | 89.3080 | 82.7160 | 82.6200 |
| U3-U4 | 58.3660 | 58.3030 | 100.1700 | 100.0840 |
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 | 59602.07487165 |
| 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 | 48.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 80 |
| HIERARCH ESO ISS PBL12 START | 40.035 |
| HIERARCH ESO ISS PBL12 END | 40.112 |
| HIERARCH ESO ISS PBLA12 START | 41.3 |
| HIERARCH ESO ISS PBLA12 END | 41.4 |
| HIERARCH ESO ISS PBL13 START | 77.366 |
| HIERARCH ESO ISS PBL13 END | 77.51 |
| HIERARCH ESO ISS PBLA13 START | 48.1 |
| HIERARCH ESO ISS PBLA13 END | 48.1 |
| HIERARCH ESO ISS PBL14 START | 122.237 |
| HIERARCH ESO ISS PBL14 END | 122.358 |
| HIERARCH ESO ISS PBLA14 START | 70.212 |
| HIERARCH ESO ISS PBLA14 END | 70.135 |
| HIERARCH ESO ISS PBL23 START | 37.9 |
| HIERARCH ESO ISS PBL23 END | 37.964 |
| HIERARCH ESO ISS PBLA23 START | 55.2 |
| HIERARCH ESO ISS PBLA23 END | 55.2 |
| HIERARCH ESO ISS PBL24 START | 89.294 |
| HIERARCH ESO ISS PBL24 END | 89.308 |
| HIERARCH ESO ISS PBLA24 START | 82.716 |
| HIERARCH ESO ISS PBLA24 END | 82.62 |
| HIERARCH ESO ISS PBL34 START | 58.366 |
| HIERARCH ESO ISS PBL34 END | 58.303 |
| HIERARCH ESO ISS PBLA34 START | 100.17 |
| HIERARCH ESO ISS PBLA34 END | 100.084 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005269 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005269 |
| HIERARCH ESO ISS AMBI TEMP | 14.37 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.91 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |