Exposure
- ID
- GRAVI.2021-05-22T23:18:01.329_2
- Header ID
- GRAVI.2021-05-22T23:18:01.329
- Date updated
- 2021-09-29 14:27:18 UTC+0000
- Release date
- 2022-05-22 23:30:24 UTC+0000
- UTC Start
- 2021-05-22 23:18:01.329
- UTC End
- 2021-05-22 23:19:05.329
- MJD Start
- 59356.97084871
- MJD End
- 59356.9715894507
- Exposure time (s)
- 64.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0072775
- Ambient temperature (°C)
- 11.9
- Seeing (arcsec)
- 0.5
Observation
- ID
- 47436
- Category
- science
- Program ID
- 106.217D.002
- Program Title
- HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
- Program Type
- Monitoring
- PI / COI
- KERVELLA/ M\XC3\XA9RAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
- ID
- 35576
- Name
- WDSJ14077-4952B
- RA
- 211.922835416667
- DEC
- -49.8673693055556
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 54.6920 | 54.6940 | 358.3000 | 358.5000 |
| U1-U3 | 100.8180 | 100.8140 | 2.8000 | 3.1000 |
| U1-U4 | 128.0820 | 128.1210 | 21.9620 | 22.3050 |
| U2-U3 | 46.4930 | 46.4910 | 8.1000 | 8.4000 |
| U2-U4 | 81.0220 | 81.1240 | 37.6820 | 38.0760 |
| U3-U4 | 46.6360 | 46.8040 | 67.1760 | 67.5630 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.217D.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59356.97084871 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | HD 123227 |
| HIERARCH ESO INS SOBJ NAME | WDSJ14077-4952A |
| RA | 211.925981 |
| DEC | -49.86695 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 94.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 64 |
| HIERARCH ESO ISS PBL12 START | 54.692 |
| HIERARCH ESO ISS PBL12 END | 54.694 |
| HIERARCH ESO ISS PBLA12 START | 358.3 |
| HIERARCH ESO ISS PBLA12 END | 358.5 |
| HIERARCH ESO ISS PBL13 START | 100.818 |
| HIERARCH ESO ISS PBL13 END | 100.814 |
| HIERARCH ESO ISS PBLA13 START | 2.8 |
| HIERARCH ESO ISS PBLA13 END | 3.1 |
| HIERARCH ESO ISS PBL14 START | 128.082 |
| HIERARCH ESO ISS PBL14 END | 128.121 |
| HIERARCH ESO ISS PBLA14 START | 21.962 |
| HIERARCH ESO ISS PBLA14 END | 22.305 |
| HIERARCH ESO ISS PBL23 START | 46.493 |
| HIERARCH ESO ISS PBL23 END | 46.491 |
| HIERARCH ESO ISS PBLA23 START | 8.1 |
| HIERARCH ESO ISS PBLA23 END | 8.4 |
| HIERARCH ESO ISS PBL24 START | 81.022 |
| HIERARCH ESO ISS PBL24 END | 81.124 |
| HIERARCH ESO ISS PBLA24 START | 37.682 |
| HIERARCH ESO ISS PBLA24 END | 38.076 |
| HIERARCH ESO ISS PBL34 START | 46.636 |
| HIERARCH ESO ISS PBL34 END | 46.804 |
| HIERARCH ESO ISS PBLA34 START | 67.176 |
| HIERARCH ESO ISS PBLA34 END | 67.563 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008451 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006104 |
| HIERARCH ESO ISS AMBI TEMP | 11.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | WDSJ14077-4952B |
| HIERARCH ESO FT ROBJ ALPHA | 140741.4805 |
| HIERARCH ESO FT ROBJ DELTA | -495202.5295 |