Exposure
- ID
- GRAVI.2025-02-26T05:47:43.920_2
- Header ID
- GRAVI.2025-02-26T05:47:43.920
- Date updated
- 2025-02-26 06:00:45 UTC+0000
- Release date
- 2026-02-26 06:00:45 UTC+0000
- UTC Start
- 2025-02-26 05:47:43.920
- UTC End
- 2025-02-26 05:54:23.920
- MJD Start
- 60732.24148055
- MJD End
- 60732.24611017963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.009188
- Ambient temperature (°C)
- 18.26
- Seeing (arcsec)
- 0.51
Observation
- ID
- 63639
- Category
- science
- Program ID
- 113.26JS.001
- Program Title
- DIRECT CHARACTERIZATION OF CIRCUMPLANETARY DISKS WITH VLTI/GRAVITY
- Program Type
- Normal
- PI / COI
- BOURDAROT / RAB / BENISTY / LACOUR / GINSKI / BONNEFOY / POURRÉ / KAMMERER / DEMARS / RINGQVIST / VISWANATH / KRAVCHENKO
Target
- ID
- 47407
- Name
- CT_Cha
- RA
- 166.03791249999998
- DEC
- -76.45536916666667
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 85.7030 | 85.8900 | 113.0000 | 114.7000 |
| A0-J2 | 129.2270 | 129.2340 | 98.2000 | 99.9000 |
| A0-K0 | 122.7980 | 122.5400 | 84.4230 | 86.1180 |
| G1-J2 | 51.2970 | 51.1080 | 72.9000 | 74.5000 |
| G1-K0 | 62.7910 | 62.4670 | 43.6480 | 45.0490 |
| J2-K0 | 30.8760 | 30.9220 | 349.3880 | 350.6050 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.26JS.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60732.24148055 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | CT Cha |
| HIERARCH ESO INS SOBJ NAME | CT_Cha |
| RA | 166.026517 |
| DEC | -76.45518 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| 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 | 418.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 85.703 |
| HIERARCH ESO ISS PBL12 END | 85.89 |
| HIERARCH ESO ISS PBLA12 START | 113.0 |
| HIERARCH ESO ISS PBLA12 END | 114.7 |
| HIERARCH ESO ISS PBL13 START | 129.227 |
| HIERARCH ESO ISS PBL13 END | 129.234 |
| HIERARCH ESO ISS PBLA13 START | 98.2 |
| HIERARCH ESO ISS PBLA13 END | 99.9 |
| HIERARCH ESO ISS PBL14 START | 122.798 |
| HIERARCH ESO ISS PBL14 END | 122.54 |
| HIERARCH ESO ISS PBLA14 START | 84.423 |
| HIERARCH ESO ISS PBLA14 END | 86.118 |
| HIERARCH ESO ISS PBL23 START | 51.297 |
| HIERARCH ESO ISS PBL23 END | 51.108 |
| HIERARCH ESO ISS PBLA23 START | 72.9 |
| HIERARCH ESO ISS PBLA23 END | 74.5 |
| HIERARCH ESO ISS PBL24 START | 62.791 |
| HIERARCH ESO ISS PBL24 END | 62.467 |
| HIERARCH ESO ISS PBLA24 START | 43.648 |
| HIERARCH ESO ISS PBLA24 END | 45.049 |
| HIERARCH ESO ISS PBL34 START | 30.876 |
| HIERARCH ESO ISS PBL34 END | 30.922 |
| HIERARCH ESO ISS PBLA34 START | 349.388 |
| HIERARCH ESO ISS PBLA34 END | 350.605 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008767 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009609 |
| HIERARCH ESO ISS AMBI TEMP | 18.26 |
| HIERARCH ESO ISS AMBI FWHM START | 0.55 |
| HIERARCH ESO ISS AMBI FWHM END | 0.47 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |