Exposure
- ID
- GRAVI.2024-02-29T07:06:36.677_2
- Header ID
- GRAVI.2024-02-29T07:06:36.677
- Date updated
- 2024-02-29 07:20:41 UTC+0000
- Release date
- 2025-02-28 07:20:41 UTC+0000
- UTC Start
- 2024-02-29 07:06:36.677
- UTC End
- 2024-02-29 07:13:16.677
- MJD Start
- 60369.29625784
- MJD End
- 60369.3008874696
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0075485
- Ambient temperature (°C)
- 15.12
- Seeing (arcsec)
- 0.59
Observation
- ID
- 58568
- Category
- science
- Program ID
- 112.25BY.002
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CEN FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ ROUSSELET-PERRAUT/ PERRIN
Target
- ID
- 43364
- Name
- AlphaCenB
- RA
- 219.8499875
- DEC
- -60.829615
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 B2 D0 C1
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 19.9980 | 20.1940 | 119.0000 | 120.2000 |
| A0-D0 | 32.0040 | 32.0010 | 52.7000 | 54.2000 |
| A0-C1 | 20.1350 | 20.2840 | 90.0420 | 91.5470 |
| B2-D0 | 30.1670 | 30.1050 | 15.3000 | 16.4000 |
| B2-C1 | 10.0470 | 10.0260 | 15.3020 | 16.3940 |
| D0-C1 | 20.1200 | 20.0790 | 195.3630 | 196.4560 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 112.25BY.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60369.29625784 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS3 |
| RA | 219.845994 |
| DEC | -60.82954 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 19.998 |
| HIERARCH ESO ISS PBL12 END | 20.194 |
| HIERARCH ESO ISS PBLA12 START | 119.0 |
| HIERARCH ESO ISS PBLA12 END | 120.2 |
| HIERARCH ESO ISS PBL13 START | 32.004 |
| HIERARCH ESO ISS PBL13 END | 32.001 |
| HIERARCH ESO ISS PBLA13 START | 52.7 |
| HIERARCH ESO ISS PBLA13 END | 54.2 |
| HIERARCH ESO ISS PBL14 START | 20.135 |
| HIERARCH ESO ISS PBL14 END | 20.284 |
| HIERARCH ESO ISS PBLA14 START | 90.042 |
| HIERARCH ESO ISS PBLA14 END | 91.547 |
| HIERARCH ESO ISS PBL23 START | 30.167 |
| HIERARCH ESO ISS PBL23 END | 30.105 |
| HIERARCH ESO ISS PBLA23 START | 15.3 |
| HIERARCH ESO ISS PBLA23 END | 16.4 |
| HIERARCH ESO ISS PBL24 START | 10.047 |
| HIERARCH ESO ISS PBL24 END | 10.026 |
| HIERARCH ESO ISS PBLA24 START | 15.302 |
| HIERARCH ESO ISS PBLA24 END | 16.394 |
| HIERARCH ESO ISS PBL34 START | 20.12 |
| HIERARCH ESO ISS PBL34 END | 20.079 |
| HIERARCH ESO ISS PBLA34 START | 195.363 |
| HIERARCH ESO ISS PBLA34 END | 196.456 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008789 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006308 |
| HIERARCH ESO ISS AMBI TEMP | 15.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.7 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.997 |
| HIERARCH ESO FT ROBJ DELTA | -604946.614 |