Exposure
- ID
- GRAVI.2024-03-17T06:50:29.579_2
- Header ID
- GRAVI.2024-03-17T06:50:29.579
- Date updated
- 2024-03-17 07:05:32 UTC+0000
- Release date
- 2025-03-17 07:05:32 UTC+0000
- UTC Start
- 2024-03-17 06:50:29.579
- UTC End
- 2024-03-17 06:57:09.579
- MJD Start
- 60386.28506457
- MJD End
- 60386.2896941996
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006083
- Ambient temperature (°C)
- 16.8
- Seeing (arcsec)
- 1.01
Observation
- ID
- 58779
- 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
- 43514
- Name
- AlphaCenB
- RA
- 219.849725
- DEC
- -60.8296386111111
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 84.5060 | 84.9630 | 100.9000 | 102.3000 |
| A0-J2 | 128.0280 | 128.2700 | 81.1000 | 82.6000 |
| A0-K0 | 127.4290 | 127.2610 | 63.6760 | 65.1510 |
| G1-J2 | 56.3210 | 56.1490 | 50.6000 | 51.9000 |
| G1-K0 | 78.9060 | 78.6420 | 23.3190 | 24.3960 |
| J2-K0 | 38.6820 | 38.8160 | 341.5150 | 342.4190 |
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 | 60386.28506457 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS3 |
| RA | 219.845872 |
| DEC | -60.82955 |
| 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 | G1 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | K0 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 84.506 |
| HIERARCH ESO ISS PBL12 END | 84.963 |
| HIERARCH ESO ISS PBLA12 START | 100.9 |
| HIERARCH ESO ISS PBLA12 END | 102.3 |
| HIERARCH ESO ISS PBL13 START | 128.028 |
| HIERARCH ESO ISS PBL13 END | 128.27 |
| HIERARCH ESO ISS PBLA13 START | 81.1 |
| HIERARCH ESO ISS PBLA13 END | 82.6 |
| HIERARCH ESO ISS PBL14 START | 127.429 |
| HIERARCH ESO ISS PBL14 END | 127.261 |
| HIERARCH ESO ISS PBLA14 START | 63.676 |
| HIERARCH ESO ISS PBLA14 END | 65.151 |
| HIERARCH ESO ISS PBL23 START | 56.321 |
| HIERARCH ESO ISS PBL23 END | 56.149 |
| HIERARCH ESO ISS PBLA23 START | 50.6 |
| HIERARCH ESO ISS PBLA23 END | 51.9 |
| HIERARCH ESO ISS PBL24 START | 78.906 |
| HIERARCH ESO ISS PBL24 END | 78.642 |
| HIERARCH ESO ISS PBLA24 START | 23.319 |
| HIERARCH ESO ISS PBLA24 END | 24.396 |
| HIERARCH ESO ISS PBL34 START | 38.682 |
| HIERARCH ESO ISS PBL34 END | 38.816 |
| HIERARCH ESO ISS PBLA34 START | 341.515 |
| HIERARCH ESO ISS PBLA34 END | 342.419 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005965 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006201 |
| HIERARCH ESO ISS AMBI TEMP | 16.8 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 1.02 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.934 |
| HIERARCH ESO FT ROBJ DELTA | -604946.699 |