Exposure
- ID
- GRAVI.2022-04-28T03:18:41.844_2
- Header ID
- GRAVI.2022-04-28T03:18:41.844
- Date updated
- 2022-04-28 03:36:27 UTC+0000
- Release date
- 2023-04-28 03:36:26 UTC+0000
- UTC Start
- 2022-04-28 03:18:41.844
- UTC End
- 2022-04-28 03:25:21.844
- MJD Start
- 59697.13798431
- MJD End
- 59697.1426139396
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003599
- Ambient temperature (°C)
- 13.53
- Seeing (arcsec)
- 0.73
Observation
- ID
- 50675
- Category
- science
- Program ID
- 106.217D.008
- Program Title
- HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
- Program Type
- Monitoring
- PI / COI
- KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
- ID
- 37818
- Name
- AlphaCenA_2022_04_29
- RA
- 219.853129166667
- DEC
- -60.8321375
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 | 20.0600 | 20.2550 | 119.4000 | 120.6000 |
| A0-D0 | 32.0040 | 31.9990 | 53.2000 | 54.7000 |
| A0-C1 | 20.1820 | 20.3310 | 90.5070 | 92.0190 |
| B2-D0 | 30.1490 | 30.0850 | 15.7000 | 16.8000 |
| B2-C1 | 10.0410 | 10.0190 | 15.6370 | 16.7360 |
| D0-C1 | 20.1080 | 20.0650 | 195.6980 | 196.7980 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 106.217D.008 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59697.13798431 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | AlphaCenA_2022_04_29 |
| HIERARCH ESO INS SOBJ NAME | StarS2 |
| RA | 219.847606 |
| DEC | -60.83188 |
| 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 | 20.06 |
| HIERARCH ESO ISS PBL12 END | 20.255 |
| HIERARCH ESO ISS PBLA12 START | 119.4 |
| HIERARCH ESO ISS PBLA12 END | 120.6 |
| HIERARCH ESO ISS PBL13 START | 32.004 |
| HIERARCH ESO ISS PBL13 END | 31.999 |
| HIERARCH ESO ISS PBLA13 START | 53.2 |
| HIERARCH ESO ISS PBLA13 END | 54.7 |
| HIERARCH ESO ISS PBL14 START | 20.182 |
| HIERARCH ESO ISS PBL14 END | 20.331 |
| HIERARCH ESO ISS PBLA14 START | 90.507 |
| HIERARCH ESO ISS PBLA14 END | 92.019 |
| HIERARCH ESO ISS PBL23 START | 30.149 |
| HIERARCH ESO ISS PBL23 END | 30.085 |
| HIERARCH ESO ISS PBLA23 START | 15.7 |
| HIERARCH ESO ISS PBLA23 END | 16.8 |
| HIERARCH ESO ISS PBL24 START | 10.041 |
| HIERARCH ESO ISS PBL24 END | 10.019 |
| HIERARCH ESO ISS PBLA24 START | 15.637 |
| HIERARCH ESO ISS PBLA24 END | 16.736 |
| HIERARCH ESO ISS PBL34 START | 20.108 |
| HIERARCH ESO ISS PBL34 END | 20.065 |
| HIERARCH ESO ISS PBLA34 START | 195.698 |
| HIERARCH ESO ISS PBLA34 END | 196.798 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004132 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003066 |
| HIERARCH ESO ISS AMBI TEMP | 13.53 |
| HIERARCH ESO ISS AMBI FWHM START | 0.66 |
| HIERARCH ESO ISS AMBI FWHM END | 0.8 |
| HIERARCH ESO FT ROBJ NAME | AlphaCenA_2022_04_29 |
| HIERARCH ESO FT ROBJ ALPHA | 143924.751 |
| HIERARCH ESO FT ROBJ DELTA | -604955.695 |