Exposure
- ID
- GRAVI.2024-03-18T05:27:13.596_1
- Header ID
- GRAVI.2024-03-18T05:27:13.596
- Date updated
- 2024-03-18 05:45:41 UTC+0000
- Release date
- 2025-03-18 05:45:41 UTC+0000
- UTC Start
- 2024-03-18 05:27:13.596
- UTC End
- 2024-03-18 05:33:53.596
- MJD Start
- 60387.22724069
- MJD End
- 60387.2318703196
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.011536
- Ambient temperature (°C)
- 16.47
- Seeing (arcsec)
- 0.4
Observation
- ID
- 58792
- 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
- 43526
- Name
- StarS4
- RA
- 219.844272
- DEC
- -60.82911
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 77.9040 | 78.5690 | 83.7000 | 85.2000 |
| A0-J2 | 123.5900 | 124.0770 | 63.0000 | 64.6000 |
| A0-K0 | 127.8530 | 127.9070 | 46.3910 | 47.9310 |
| G1-J2 | 57.6360 | 57.5630 | 34.6000 | 36.0000 |
| G1-K0 | 80.9960 | 80.8790 | 10.7840 | 11.8890 |
| J2-K0 | 36.6050 | 36.8270 | 331.3310 | 332.2030 |
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 | 60387.22724069 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenB |
| HIERARCH ESO INS SOBJ NAME | StarS4 |
| RA | 219.844272 |
| DEC | -60.82911 |
| 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 | 77.904 |
| HIERARCH ESO ISS PBL12 END | 78.569 |
| HIERARCH ESO ISS PBLA12 START | 83.7 |
| HIERARCH ESO ISS PBLA12 END | 85.2 |
| HIERARCH ESO ISS PBL13 START | 123.59 |
| HIERARCH ESO ISS PBL13 END | 124.077 |
| HIERARCH ESO ISS PBLA13 START | 63.0 |
| HIERARCH ESO ISS PBLA13 END | 64.6 |
| HIERARCH ESO ISS PBL14 START | 127.853 |
| HIERARCH ESO ISS PBL14 END | 127.907 |
| HIERARCH ESO ISS PBLA14 START | 46.391 |
| HIERARCH ESO ISS PBLA14 END | 47.931 |
| HIERARCH ESO ISS PBL23 START | 57.636 |
| HIERARCH ESO ISS PBL23 END | 57.563 |
| HIERARCH ESO ISS PBLA23 START | 34.6 |
| HIERARCH ESO ISS PBLA23 END | 36.0 |
| HIERARCH ESO ISS PBL24 START | 80.996 |
| HIERARCH ESO ISS PBL24 END | 80.879 |
| HIERARCH ESO ISS PBLA24 START | 10.784 |
| HIERARCH ESO ISS PBLA24 END | 11.889 |
| HIERARCH ESO ISS PBL34 START | 36.605 |
| HIERARCH ESO ISS PBL34 END | 36.827 |
| HIERARCH ESO ISS PBLA34 START | 331.331 |
| HIERARCH ESO ISS PBLA34 END | 332.203 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.011658 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.011414 |
| HIERARCH ESO ISS AMBI TEMP | 16.47 |
| HIERARCH ESO ISS AMBI FWHM START | 0.4 |
| HIERARCH ESO ISS AMBI FWHM END | 0.4 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenB |
| HIERARCH ESO FT ROBJ ALPHA | 143923.934 |
| HIERARCH ESO FT ROBJ DELTA | -604946.699 |