Exposure
- ID
- GRAVI.2025-02-03T08:46:08.465_2
- Header ID
- GRAVI.2025-02-03T08:46:08.465
- Date updated
- 2025-02-03 09:00:46 UTC+0000
- Release date
- 2026-02-03 09:00:45 UTC+0000
- UTC Start
- 2025-02-03 08:46:08.465
- UTC End
- 2025-02-03 08:52:48.465
- MJD Start
- 60709.36537575
- MJD End
- 60709.37000537963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006132
- Ambient temperature (°C)
- 13.78
- Seeing (arcsec)
- 1.05
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 | 87.6240 | 87.7380 | 133.6000 | 135.2000 |
| A0-J2 | 128.9010 | 128.8420 | 119.7000 | 121.4000 |
| A0-K0 | 119.1380 | 118.8170 | 106.0150 | 107.7700 |
| G1-J2 | 48.6730 | 48.4450 | 94.0000 | 95.7000 |
| G1-K0 | 58.0420 | 57.6030 | 61.6430 | 63.1240 |
| J2-K0 | 31.0500 | 31.0250 | 4.6630 | 5.8810 |
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 | 60709.36537575 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | CT Cha |
| HIERARCH ESO INS SOBJ NAME | CT_Cha |
| RA | 166.02652 |
| 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 | 87.624 |
| HIERARCH ESO ISS PBL12 END | 87.738 |
| HIERARCH ESO ISS PBLA12 START | 133.6 |
| HIERARCH ESO ISS PBLA12 END | 135.2 |
| HIERARCH ESO ISS PBL13 START | 128.901 |
| HIERARCH ESO ISS PBL13 END | 128.842 |
| HIERARCH ESO ISS PBLA13 START | 119.7 |
| HIERARCH ESO ISS PBLA13 END | 121.4 |
| HIERARCH ESO ISS PBL14 START | 119.138 |
| HIERARCH ESO ISS PBL14 END | 118.817 |
| HIERARCH ESO ISS PBLA14 START | 106.015 |
| HIERARCH ESO ISS PBLA14 END | 107.77 |
| HIERARCH ESO ISS PBL23 START | 48.673 |
| HIERARCH ESO ISS PBL23 END | 48.445 |
| HIERARCH ESO ISS PBLA23 START | 94.0 |
| HIERARCH ESO ISS PBLA23 END | 95.7 |
| HIERARCH ESO ISS PBL24 START | 58.042 |
| HIERARCH ESO ISS PBL24 END | 57.603 |
| HIERARCH ESO ISS PBLA24 START | 61.643 |
| HIERARCH ESO ISS PBLA24 END | 63.124 |
| HIERARCH ESO ISS PBL34 START | 31.05 |
| HIERARCH ESO ISS PBL34 END | 31.025 |
| HIERARCH ESO ISS PBLA34 START | 4.663 |
| HIERARCH ESO ISS PBLA34 END | 5.881 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005436 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006828 |
| HIERARCH ESO ISS AMBI TEMP | 13.78 |
| HIERARCH ESO ISS AMBI FWHM START | 1.04 |
| HIERARCH ESO ISS AMBI FWHM END | 1.06 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |