Exposure
- ID
- GRAVI.2023-02-11T01:08:05.812_2
- Header ID
- GRAVI.2023-02-11T01:08:05.812
- Date updated
- 2023-02-11 01:21:04 UTC+0000
- Release date
- 2024-02-11 01:21:04 UTC+0000
- UTC Start
- 2023-02-11 01:08:05.812
- UTC End
- 2023-02-11 01:13:25.812
- MJD Start
- 59986.04728949
- MJD End
- 59986.0509931937
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004915
- Ambient temperature (°C)
- 15.47
- Seeing (arcsec)
- 0.82
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 | 43.2930 | 43.8090 | 42.0000 | 42.1000 |
| U1-U3 | 83.3880 | 84.3140 | 47.6000 | 47.5000 |
| U1-U4 | 126.7020 | 127.2650 | 66.6850 | 66.0740 |
| U2-U3 | 40.5210 | 40.9110 | 53.6000 | 53.3000 |
| U2-U4 | 89.2010 | 89.0490 | 78.3670 | 77.6240 |
| U3-U4 | 55.0820 | 54.4440 | 96.3090 | 95.6570 |
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 | 59986.04728949 |
| 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 | 43.293 |
| HIERARCH ESO ISS PBL12 END | 43.809 |
| HIERARCH ESO ISS PBLA12 START | 42.0 |
| HIERARCH ESO ISS PBLA12 END | 42.1 |
| HIERARCH ESO ISS PBL13 START | 83.388 |
| HIERARCH ESO ISS PBL13 END | 84.314 |
| HIERARCH ESO ISS PBLA13 START | 47.6 |
| HIERARCH ESO ISS PBLA13 END | 47.5 |
| HIERARCH ESO ISS PBL14 START | 126.702 |
| HIERARCH ESO ISS PBL14 END | 127.265 |
| HIERARCH ESO ISS PBLA14 START | 66.685 |
| HIERARCH ESO ISS PBLA14 END | 66.074 |
| HIERARCH ESO ISS PBL23 START | 40.521 |
| HIERARCH ESO ISS PBL23 END | 40.911 |
| HIERARCH ESO ISS PBLA23 START | 53.6 |
| HIERARCH ESO ISS PBLA23 END | 53.3 |
| HIERARCH ESO ISS PBL24 START | 89.201 |
| HIERARCH ESO ISS PBL24 END | 89.049 |
| HIERARCH ESO ISS PBLA24 START | 78.367 |
| HIERARCH ESO ISS PBLA24 END | 77.624 |
| HIERARCH ESO ISS PBL34 START | 55.082 |
| HIERARCH ESO ISS PBL34 END | 54.444 |
| HIERARCH ESO ISS PBLA34 START | 96.309 |
| HIERARCH ESO ISS PBLA34 END | 95.657 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004919 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004911 |
| HIERARCH ESO ISS AMBI TEMP | 15.47 |
| HIERARCH ESO ISS AMBI FWHM START | 0.86 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |