Exposure
- ID
- GRAVI.2022-01-26T01:44:43.935_2
- Header ID
- GRAVI.2022-01-26T01:44:43.935
- Date updated
- 2022-01-26 02:00:45 UTC+0000
- Release date
- 2023-01-26 02:00:44 UTC+0000
- UTC Start
- 2022-01-26 01:44:43.935
- UTC End
- 2022-01-26 01:50:43.935
- MJD Start
- 59605.07273073
- MJD End
- 59605.0768973967
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005005
- Ambient temperature (°C)
- 14.64
- Seeing (arcsec)
- 1.135
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 | 40.8970 | 41.5090 | 41.6000 | 41.8000 |
| U1-U3 | 78.9870 | 80.1250 | 48.0000 | 48.0000 |
| U1-U4 | 123.5650 | 124.4440 | 69.3260 | 68.6790 |
| U2-U3 | 38.6200 | 39.1190 | 54.8000 | 54.6000 |
| U2-U4 | 89.4070 | 89.4290 | 81.6120 | 80.8110 |
| U3-U4 | 57.6120 | 57.0300 | 99.1820 | 98.4700 |
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 | 59605.07273073 |
| 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 | 40.897 |
| HIERARCH ESO ISS PBL12 END | 41.509 |
| HIERARCH ESO ISS PBLA12 START | 41.6 |
| HIERARCH ESO ISS PBLA12 END | 41.8 |
| HIERARCH ESO ISS PBL13 START | 78.987 |
| HIERARCH ESO ISS PBL13 END | 80.125 |
| HIERARCH ESO ISS PBLA13 START | 48.0 |
| HIERARCH ESO ISS PBLA13 END | 48.0 |
| HIERARCH ESO ISS PBL14 START | 123.565 |
| HIERARCH ESO ISS PBL14 END | 124.444 |
| HIERARCH ESO ISS PBLA14 START | 69.326 |
| HIERARCH ESO ISS PBLA14 END | 68.679 |
| HIERARCH ESO ISS PBL23 START | 38.62 |
| HIERARCH ESO ISS PBL23 END | 39.119 |
| HIERARCH ESO ISS PBLA23 START | 54.8 |
| HIERARCH ESO ISS PBLA23 END | 54.6 |
| HIERARCH ESO ISS PBL24 START | 89.407 |
| HIERARCH ESO ISS PBL24 END | 89.429 |
| HIERARCH ESO ISS PBLA24 START | 81.612 |
| HIERARCH ESO ISS PBLA24 END | 80.811 |
| HIERARCH ESO ISS PBL34 START | 57.612 |
| HIERARCH ESO ISS PBL34 END | 57.03 |
| HIERARCH ESO ISS PBLA34 START | 99.182 |
| HIERARCH ESO ISS PBLA34 END | 98.47 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005373 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004637 |
| HIERARCH ESO ISS AMBI TEMP | 14.64 |
| HIERARCH ESO ISS AMBI FWHM START | 0.92 |
| HIERARCH ESO ISS AMBI FWHM END | 1.35 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |