Exposure
- ID
- GRAVI.2021-04-02T07:44:15.363_2
- Header ID
- GRAVI.2021-04-02T07:44:15.363
- Date updated
- 2021-09-29 14:27:08 UTC+0000
- Release date
- 2022-04-02 07:51:11 UTC+0000
- UTC Start
- 2021-04-02 07:44:15.363
- UTC End
- 2021-04-02 07:45:19.363
- MJD Start
- 59306.32240003
- MJD End
- 59306.3231407707
- Exposure time (s)
- 64.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003066
- Ambient temperature (°C)
- 11.88
- Seeing (arcsec)
- 1.0
Observation
- ID
- 47379
- 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
- 35536
- Name
- WDSJ14077-4952B
- RA
- 211.922824583333
- DEC
- -49.8673677777778
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 | 48.2520 | 48.1690 | 40.5000 | 40.7000 |
| U1-U3 | 87.3150 | 87.1430 | 47.9000 | 48.1000 |
| U1-U4 | 116.0950 | 115.8440 | 79.7270 | 79.9990 |
| U2-U3 | 39.9600 | 39.8730 | 56.9000 | 57.1000 |
| U2-U4 | 84.4400 | 84.3140 | 100.9190 | 101.2290 |
| U3-U4 | 62.2380 | 62.2190 | 127.4120 | 127.7200 |
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 | 59306.32240003 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | HD 123227 |
| HIERARCH ESO INS SOBJ NAME | WDSJ14077-4952A |
| RA | 211.926204 |
| 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 | 48.252 |
| HIERARCH ESO ISS PBL12 END | 48.169 |
| HIERARCH ESO ISS PBLA12 START | 40.5 |
| HIERARCH ESO ISS PBLA12 END | 40.7 |
| HIERARCH ESO ISS PBL13 START | 87.315 |
| HIERARCH ESO ISS PBL13 END | 87.143 |
| HIERARCH ESO ISS PBLA13 START | 47.9 |
| HIERARCH ESO ISS PBLA13 END | 48.1 |
| HIERARCH ESO ISS PBL14 START | 116.095 |
| HIERARCH ESO ISS PBL14 END | 115.844 |
| HIERARCH ESO ISS PBLA14 START | 79.727 |
| HIERARCH ESO ISS PBLA14 END | 79.999 |
| HIERARCH ESO ISS PBL23 START | 39.96 |
| HIERARCH ESO ISS PBL23 END | 39.873 |
| HIERARCH ESO ISS PBLA23 START | 56.9 |
| HIERARCH ESO ISS PBLA23 END | 57.1 |
| HIERARCH ESO ISS PBL24 START | 84.44 |
| HIERARCH ESO ISS PBL24 END | 84.314 |
| HIERARCH ESO ISS PBLA24 START | 100.919 |
| HIERARCH ESO ISS PBLA24 END | 101.229 |
| HIERARCH ESO ISS PBL34 START | 62.238 |
| HIERARCH ESO ISS PBL34 END | 62.219 |
| HIERARCH ESO ISS PBLA34 START | 127.412 |
| HIERARCH ESO ISS PBLA34 END | 127.72 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003066 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003066 |
| HIERARCH ESO ISS AMBI TEMP | 11.88 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 1.0 |
| HIERARCH ESO FT ROBJ NAME | WDSJ14077-4952B |
| HIERARCH ESO FT ROBJ ALPHA | 140741.4779 |
| HIERARCH ESO FT ROBJ DELTA | -495202.5240 |