Exposure
- ID
- GRAVI.2025-02-26T07:52:44.238_2
- Header ID
- GRAVI.2025-02-26T07:52:44.238
- Date updated
- 2025-02-26 08:10:34 UTC+0000
- Release date
- 2026-02-26 08:10:34 UTC+0000
- UTC Start
- 2025-02-26 07:52:44.238
- UTC End
- 2025-02-26 07:59:24.238
- MJD Start
- 60732.32828979
- MJD End
- 60732.33291941963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008154
- Ambient temperature (°C)
- 16.87
- Seeing (arcsec)
- 0.605
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 | 88.1650 | 88.2510 | 142.2000 | 143.9000 |
| A0-J2 | 128.5510 | 128.4770 | 128.8000 | 130.5000 |
| A0-K0 | 117.4250 | 117.0990 | 115.3470 | 117.1300 |
| G1-J2 | 47.4540 | 47.2200 | 103.2000 | 105.0000 |
| G1-K0 | 55.6350 | 55.1560 | 69.5650 | 71.0930 |
| J2-K0 | 30.8540 | 30.8000 | 11.0970 | 12.3160 |
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 | 60732.32828979 |
| 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 | 88.165 |
| HIERARCH ESO ISS PBL12 END | 88.251 |
| HIERARCH ESO ISS PBLA12 START | 142.2 |
| HIERARCH ESO ISS PBLA12 END | 143.9 |
| HIERARCH ESO ISS PBL13 START | 128.551 |
| HIERARCH ESO ISS PBL13 END | 128.477 |
| HIERARCH ESO ISS PBLA13 START | 128.8 |
| HIERARCH ESO ISS PBLA13 END | 130.5 |
| HIERARCH ESO ISS PBL14 START | 117.425 |
| HIERARCH ESO ISS PBL14 END | 117.099 |
| HIERARCH ESO ISS PBLA14 START | 115.347 |
| HIERARCH ESO ISS PBLA14 END | 117.13 |
| HIERARCH ESO ISS PBL23 START | 47.454 |
| HIERARCH ESO ISS PBL23 END | 47.22 |
| HIERARCH ESO ISS PBLA23 START | 103.2 |
| HIERARCH ESO ISS PBLA23 END | 105.0 |
| HIERARCH ESO ISS PBL24 START | 55.635 |
| HIERARCH ESO ISS PBL24 END | 55.156 |
| HIERARCH ESO ISS PBLA24 START | 69.565 |
| HIERARCH ESO ISS PBLA24 END | 71.093 |
| HIERARCH ESO ISS PBL34 START | 30.854 |
| HIERARCH ESO ISS PBL34 END | 30.8 |
| HIERARCH ESO ISS PBLA34 START | 11.097 |
| HIERARCH ESO ISS PBLA34 END | 12.316 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008085 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008223 |
| HIERARCH ESO ISS AMBI TEMP | 16.87 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.59 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |