Exposure
- ID
- GRAVI.2023-01-08T03:27:13.326_2
- Header ID
- GRAVI.2023-01-08T03:27:13.326
- Date updated
- 2023-01-08 03:45:41 UTC+0000
- Release date
- 2024-01-08 03:45:41 UTC+0000
- UTC Start
- 2023-01-08 03:27:13.326
- UTC End
- 2023-01-08 03:33:13.326
- MJD Start
- 59952.14390424
- MJD End
- 59952.14807090667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00377
- Ambient temperature (°C)
- 11.56
- Seeing (arcsec)
- 0.72
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 | 43.7860 | 44.3500 | 42.1000 | 42.1000 |
| U1-U3 | 84.2730 | 85.2770 | 47.5000 | 47.3000 |
| U1-U4 | 127.2410 | 127.8090 | 66.1020 | 65.4140 |
| U2-U3 | 40.8940 | 41.3120 | 53.3000 | 52.9000 |
| U2-U4 | 89.0560 | 88.8440 | 77.6580 | 76.8240 |
| U3-U4 | 54.4730 | 53.7360 | 95.6870 | 94.9570 |
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 | 59952.14390424 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | V AB Aur |
| HIERARCH ESO INS SOBJ NAME | ABAur_f1 |
| RA | 73.942915 |
| DEC | 30.55093 |
| 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 | 43.786 |
| HIERARCH ESO ISS PBL12 END | 44.35 |
| HIERARCH ESO ISS PBLA12 START | 42.1 |
| HIERARCH ESO ISS PBLA12 END | 42.1 |
| HIERARCH ESO ISS PBL13 START | 84.273 |
| HIERARCH ESO ISS PBL13 END | 85.277 |
| HIERARCH ESO ISS PBLA13 START | 47.5 |
| HIERARCH ESO ISS PBLA13 END | 47.3 |
| HIERARCH ESO ISS PBL14 START | 127.241 |
| HIERARCH ESO ISS PBL14 END | 127.809 |
| HIERARCH ESO ISS PBLA14 START | 66.102 |
| HIERARCH ESO ISS PBLA14 END | 65.414 |
| HIERARCH ESO ISS PBL23 START | 40.894 |
| HIERARCH ESO ISS PBL23 END | 41.312 |
| HIERARCH ESO ISS PBLA23 START | 53.3 |
| HIERARCH ESO ISS PBLA23 END | 52.9 |
| HIERARCH ESO ISS PBL24 START | 89.056 |
| HIERARCH ESO ISS PBL24 END | 88.844 |
| HIERARCH ESO ISS PBLA24 START | 77.658 |
| HIERARCH ESO ISS PBLA24 END | 76.824 |
| HIERARCH ESO ISS PBL34 START | 54.473 |
| HIERARCH ESO ISS PBL34 END | 53.736 |
| HIERARCH ESO ISS PBLA34 START | 95.687 |
| HIERARCH ESO ISS PBLA34 END | 94.957 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003668 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003872 |
| HIERARCH ESO ISS AMBI TEMP | 11.56 |
| HIERARCH ESO ISS AMBI FWHM START | 0.75 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |