Exposure
- ID
- GRAVI.2025-10-14T01:09:45.841_1
- Header ID
- GRAVI.2025-10-14T01:09:45.841
- Date updated
- 2025-10-14 01:26:51 UTC+0000
- Release date
- 2026-10-14 01:26:51 UTC+0000
- UTC Start
- 2025-10-14 01:09:45.841
- UTC End
- 2025-10-14 01:14:33.841
- MJD Start
- 60962.04844723
- MJD End
- 60962.051780563335
- Exposure time (s)
- 288.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033049999999999998
- Ambient temperature (°C)
- 11.66
- Seeing (arcsec)
- 0.815
Observation
- ID
- 70938
- Category
- science
- Program ID
- 115.29R0.001
- Program Title
- CONSTRAINING CALIBRATOR STAR DIAMETERS FOR RELIABLE INTERFEROMETRIC MEASUREMENTS
- Program Type
- ToO
- PI / COI
- GALLENNE / KERVELLA / BRAS
Target
- ID
- 52643
- Name
- HD189322
- RA
- 299.843394
- DEC
- 1.37806
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B5 | 39.8330 | 39.6480 | 163.5000 | 164.4000 |
| A0-J2 | 110.8760 | 109.2630 | 92.1000 | 92.1000 |
| A0-J6 | 168.2900 | 168.5710 | 34.8540 | 34.9540 |
| B5-J2 | 105.1800 | 104.2870 | 71.1000 | 70.9000 |
| B5-J6 | 195.6690 | 196.1750 | 25.7080 | 25.9760 |
| J2-J6 | 142.9690 | 142.7680 | 354.1250 | 354.9270 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.29R0.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,SINGLE |
| MJD-OBS | 60962.04844723 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | HD189322 |
| HIERARCH ESO INS SOBJ NAME | HD189322 |
| RA | 299.843394 |
| DEC | 1.37806 |
| 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 | B5 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | J6 |
| EXPTIME | 326.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 3.0 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 39.833 |
| HIERARCH ESO ISS PBL12 END | 39.648 |
| HIERARCH ESO ISS PBLA12 START | 163.5 |
| HIERARCH ESO ISS PBLA12 END | 164.4 |
| HIERARCH ESO ISS PBL13 START | 110.876 |
| HIERARCH ESO ISS PBL13 END | 109.263 |
| HIERARCH ESO ISS PBLA13 START | 92.1 |
| HIERARCH ESO ISS PBLA13 END | 92.1 |
| HIERARCH ESO ISS PBL14 START | 168.29 |
| HIERARCH ESO ISS PBL14 END | 168.571 |
| HIERARCH ESO ISS PBLA14 START | 34.854 |
| HIERARCH ESO ISS PBLA14 END | 34.954 |
| HIERARCH ESO ISS PBL23 START | 105.18 |
| HIERARCH ESO ISS PBL23 END | 104.287 |
| HIERARCH ESO ISS PBLA23 START | 71.1 |
| HIERARCH ESO ISS PBLA23 END | 70.9 |
| HIERARCH ESO ISS PBL24 START | 195.669 |
| HIERARCH ESO ISS PBL24 END | 196.175 |
| HIERARCH ESO ISS PBLA24 START | 25.708 |
| HIERARCH ESO ISS PBLA24 END | 25.976 |
| HIERARCH ESO ISS PBL34 START | 142.969 |
| HIERARCH ESO ISS PBL34 END | 142.768 |
| HIERARCH ESO ISS PBLA34 START | 354.125 |
| HIERARCH ESO ISS PBLA34 END | 354.927 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003343 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003267 |
| HIERARCH ESO ISS AMBI TEMP | 11.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.83 |
| HIERARCH ESO ISS AMBI FWHM END | 0.8 |