Exposure
- ID
- GRAVI.2024-07-04T00:56:36.599_2
- Header ID
- GRAVI.2024-07-04T00:56:36.599
- Date updated
- 2024-07-04 01:15:39 UTC+0000
- Release date
- 2025-07-04 01:15:38 UTC+0000
- UTC Start
- 2024-07-04 00:56:36.599
- UTC End
- 2024-07-04 01:03:16.599
- MJD Start
- 60495.03931249
- MJD End
- 60495.0439421196
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0079615
- Ambient temperature (°C)
- 16.14
- Seeing (arcsec)
- 0.76
Observation
- ID
- 59883
- 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
- 44429
- Name
- AlphaCenB
- RA
- 219.848558333333
- DEC
- -60.8294438888889
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 | 88.3970 | 88.6430 | 116.4000 | 117.8000 |
| A0-J2 | 129.2060 | 129.1530 | 97.5000 | 99.0000 |
| A0-K0 | 124.2190 | 123.7610 | 79.5770 | 81.0520 |
| G1-J2 | 53.8380 | 53.5360 | 65.3000 | 66.7000 |
| G1-K0 | 75.2590 | 74.8300 | 34.8400 | 35.8900 |
| J2-K0 | 39.7480 | 39.8060 | 351.4180 | 352.3440 |
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 | 60495.03931249 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.843648 |
| DEC | -60.82902 |
| 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 | 88.397 |
| HIERARCH ESO ISS PBL12 END | 88.643 |
| HIERARCH ESO ISS PBLA12 START | 116.4 |
| HIERARCH ESO ISS PBLA12 END | 117.8 |
| HIERARCH ESO ISS PBL13 START | 129.206 |
| HIERARCH ESO ISS PBL13 END | 129.153 |
| HIERARCH ESO ISS PBLA13 START | 97.5 |
| HIERARCH ESO ISS PBLA13 END | 99.0 |
| HIERARCH ESO ISS PBL14 START | 124.219 |
| HIERARCH ESO ISS PBL14 END | 123.761 |
| HIERARCH ESO ISS PBLA14 START | 79.577 |
| HIERARCH ESO ISS PBLA14 END | 81.052 |
| HIERARCH ESO ISS PBL23 START | 53.838 |
| HIERARCH ESO ISS PBL23 END | 53.536 |
| HIERARCH ESO ISS PBLA23 START | 65.3 |
| HIERARCH ESO ISS PBLA23 END | 66.7 |
| HIERARCH ESO ISS PBL24 START | 75.259 |
| HIERARCH ESO ISS PBL24 END | 74.83 |
| HIERARCH ESO ISS PBLA24 START | 34.84 |
| HIERARCH ESO ISS PBLA24 END | 35.89 |
| HIERARCH ESO ISS PBL34 START | 39.748 |
| HIERARCH ESO ISS PBL34 END | 39.806 |
| HIERARCH ESO ISS PBLA34 START | 351.418 |
| HIERARCH ESO ISS PBLA34 END | 352.344 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007699 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008224 |
| HIERARCH ESO ISS AMBI TEMP | 16.14 |
| HIERARCH ESO ISS AMBI FWHM START | 0.79 |
| HIERARCH ESO ISS AMBI FWHM END | 0.73 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.654 |
| HIERARCH ESO FT ROBJ DELTA | -604945.998 |