Exposure
- ID
- GRAVI.2022-01-23T01:57:00.933_2
- Header ID
- GRAVI.2022-01-23T01:57:00.933
- Date updated
- 2022-01-23 02:10:25 UTC+0000
- Release date
- 2023-01-23 02:10:25 UTC+0000
- UTC Start
- 2022-01-23 01:57:00.933
- UTC End
- 2022-01-23 02:03:00.933
- MJD Start
- 59602.0812608
- MJD End
- 59602.0854274667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005843
- Ambient temperature (°C)
- 14.3
- Seeing (arcsec)
- 0.885
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 | 40.9420 | 41.5550 | 41.6000 | 41.8000 |
| U1-U3 | 79.0700 | 80.2120 | 48.0000 | 48.0000 |
| U1-U4 | 123.6300 | 124.5090 | 69.2790 | 68.6290 |
| U2-U3 | 38.6560 | 39.1560 | 54.8000 | 54.5000 |
| U2-U4 | 89.4100 | 89.4290 | 81.5540 | 80.7490 |
| U3-U4 | 57.5720 | 56.9840 | 99.1310 | 98.4150 |
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 | 59602.0812608 |
| 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 | 40.942 |
| HIERARCH ESO ISS PBL12 END | 41.555 |
| HIERARCH ESO ISS PBLA12 START | 41.6 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 79.07 |
| HIERARCH ESO ISS PBL13 END | 80.212 |
| HIERARCH ESO ISS PBLA13 START | 48.0 |
| HIERARCH ESO ISS PBLA13 END | 48.0 |
| HIERARCH ESO ISS PBL14 START | 123.63 |
| HIERARCH ESO ISS PBL14 END | 124.509 |
| HIERARCH ESO ISS PBLA14 START | 69.279 |
| HIERARCH ESO ISS PBLA14 END | 68.629 |
| HIERARCH ESO ISS PBL23 START | 38.656 |
| HIERARCH ESO ISS PBL23 END | 39.156 |
| HIERARCH ESO ISS PBLA23 START | 54.8 |
| HIERARCH ESO ISS PBLA23 END | 54.5 |
| HIERARCH ESO ISS PBL24 START | 89.41 |
| HIERARCH ESO ISS PBL24 END | 89.429 |
| HIERARCH ESO ISS PBLA24 START | 81.554 |
| HIERARCH ESO ISS PBLA24 END | 80.749 |
| HIERARCH ESO ISS PBL34 START | 57.572 |
| HIERARCH ESO ISS PBL34 END | 56.984 |
| HIERARCH ESO ISS PBLA34 START | 99.131 |
| HIERARCH ESO ISS PBLA34 END | 98.415 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005929 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005757 |
| HIERARCH ESO ISS AMBI TEMP | 14.3 |
| HIERARCH ESO ISS AMBI FWHM START | 0.88 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |