Exposure
- ID
- GRAVI.2022-01-26T01:43:25.931_2
- Header ID
- GRAVI.2022-01-26T01:43:25.931
- Date updated
- 2022-01-26 01:50:51 UTC+0000
- Release date
- 2023-01-26 01:50:51 UTC+0000
- UTC Start
- 2022-01-26 01:43:25.931
- UTC End
- 2022-01-26 01:43:49.931
- MJD Start
- 59605.07182791
- MJD End
- 59605.0721056878
- Exposure time (s)
- 24.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003225
- Ambient temperature (°C)
- 14.63
- Seeing (arcsec)
- 1.41
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 | 40.7700 | 40.8420 | 41.6000 | 41.6000 |
| U1-U3 | 78.7500 | 78.8840 | 48.0000 | 48.0000 |
| U1-U4 | 123.3750 | 123.4830 | 69.4590 | 69.3840 |
| U2-U3 | 38.5150 | 38.5740 | 54.9000 | 54.9000 |
| U2-U4 | 89.3960 | 89.4020 | 81.7770 | 81.6840 |
| U3-U4 | 57.7280 | 57.6630 | 99.3290 | 99.2470 |
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 | 59605.07182791 |
| 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 | 48.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 80 |
| HIERARCH ESO ISS PBL12 START | 40.77 |
| HIERARCH ESO ISS PBL12 END | 40.842 |
| HIERARCH ESO ISS PBLA12 START | 41.6 |
| HIERARCH ESO ISS PBLA12 END | 41.6 |
| HIERARCH ESO ISS PBL13 START | 78.75 |
| HIERARCH ESO ISS PBL13 END | 78.884 |
| HIERARCH ESO ISS PBLA13 START | 48.0 |
| HIERARCH ESO ISS PBLA13 END | 48.0 |
| HIERARCH ESO ISS PBL14 START | 123.375 |
| HIERARCH ESO ISS PBL14 END | 123.483 |
| HIERARCH ESO ISS PBLA14 START | 69.459 |
| HIERARCH ESO ISS PBLA14 END | 69.384 |
| HIERARCH ESO ISS PBL23 START | 38.515 |
| HIERARCH ESO ISS PBL23 END | 38.574 |
| HIERARCH ESO ISS PBLA23 START | 54.9 |
| HIERARCH ESO ISS PBLA23 END | 54.9 |
| HIERARCH ESO ISS PBL24 START | 89.396 |
| HIERARCH ESO ISS PBL24 END | 89.402 |
| HIERARCH ESO ISS PBLA24 START | 81.777 |
| HIERARCH ESO ISS PBLA24 END | 81.684 |
| HIERARCH ESO ISS PBL34 START | 57.728 |
| HIERARCH ESO ISS PBL34 END | 57.663 |
| HIERARCH ESO ISS PBLA34 START | 99.329 |
| HIERARCH ESO ISS PBLA34 END | 99.247 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003225 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003225 |
| HIERARCH ESO ISS AMBI TEMP | 14.63 |
| HIERARCH ESO ISS AMBI FWHM START | 1.41 |
| HIERARCH ESO ISS AMBI FWHM END | 1.41 |
| HIERARCH ESO FT ROBJ NAME | AB_Aur |
| HIERARCH ESO FT ROBJ ALPHA | 045545.845 |
| HIERARCH ESO FT ROBJ DELTA | 303304.293 |