Exposure
- ID
- GRAVI.2024-07-26T01:28:36.499_2
- Header ID
- GRAVI.2024-07-26T01:28:36.499
- Date updated
- 2024-07-26 01:50:47 UTC+0000
- Release date
- 2025-07-26 01:50:47 UTC+0000
- UTC Start
- 2024-07-26 01:28:36.499
- UTC End
- 2024-07-26 01:35:16.499
- MJD Start
- 60517.06153355
- MJD End
- 60517.0661631796
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.001972
- Ambient temperature (°C)
- 12.96
- Seeing (arcsec)
- 0.97
Observation
- ID
- 60197
- Category
- science
- Program ID
- 113.267X.001
- Program Title
- GRAVITY ASTROMETRY OF STELLAR CONJUNCTIONS OF ALPHA CENTAURI FOR STELLAR PHYSICS AND EXOPLANETS
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 44696
- Name
- AlphaCenB
- RA
- 219.84835
- DEC
- -60.8293502777778
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 | 23.8990 | 23.9360 | 161.4000 | 162.7000 |
| A0-D0 | 28.2020 | 27.9870 | 105.9000 | 107.6000 |
| A0-C1 | 22.6180 | 22.6220 | 141.4140 | 142.9100 |
| B2-D0 | 24.5490 | 24.2730 | 52.6000 | 53.6000 |
| B2-C1 | 8.1770 | 8.0850 | 52.5540 | 53.5760 |
| D0-C1 | 16.3720 | 16.1880 | 232.6420 | 233.6640 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.267X.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60517.06153355 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843551 |
| DEC | -60.82897 |
| 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 | 23.899 |
| HIERARCH ESO ISS PBL12 END | 23.936 |
| HIERARCH ESO ISS PBLA12 START | 161.4 |
| HIERARCH ESO ISS PBLA12 END | 162.7 |
| HIERARCH ESO ISS PBL13 START | 28.202 |
| HIERARCH ESO ISS PBL13 END | 27.987 |
| HIERARCH ESO ISS PBLA13 START | 105.9 |
| HIERARCH ESO ISS PBLA13 END | 107.6 |
| HIERARCH ESO ISS PBL14 START | 22.618 |
| HIERARCH ESO ISS PBL14 END | 22.622 |
| HIERARCH ESO ISS PBLA14 START | 141.414 |
| HIERARCH ESO ISS PBLA14 END | 142.91 |
| HIERARCH ESO ISS PBL23 START | 24.549 |
| HIERARCH ESO ISS PBL23 END | 24.273 |
| HIERARCH ESO ISS PBLA23 START | 52.6 |
| HIERARCH ESO ISS PBLA23 END | 53.6 |
| HIERARCH ESO ISS PBL24 START | 8.177 |
| HIERARCH ESO ISS PBL24 END | 8.085 |
| HIERARCH ESO ISS PBLA24 START | 52.554 |
| HIERARCH ESO ISS PBLA24 END | 53.576 |
| HIERARCH ESO ISS PBL34 START | 16.372 |
| HIERARCH ESO ISS PBL34 END | 16.188 |
| HIERARCH ESO ISS PBLA34 START | 232.642 |
| HIERARCH ESO ISS PBLA34 END | 233.664 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002014 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00193 |
| HIERARCH ESO ISS AMBI TEMP | 12.96 |
| HIERARCH ESO ISS AMBI FWHM START | 0.98 |
| HIERARCH ESO ISS AMBI FWHM END | 0.96 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.604 |
| HIERARCH ESO FT ROBJ DELTA | -604945.661 |