Exposure
- ID
- GRAVI.2025-02-03T08:38:50.446_2
- Header ID
- GRAVI.2025-02-03T08:38:50.446
- Date updated
- 2025-02-03 08:50:43 UTC+0000
- Release date
- 2026-02-03 08:50:42 UTC+0000
- UTC Start
- 2025-02-03 08:38:50.446
- UTC End
- 2025-02-03 08:45:30.446
- MJD Start
- 60709.36030609
- MJD End
- 60709.36493571963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0067725
- Ambient temperature (°C)
- 13.75
- Seeing (arcsec)
- 0.865
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 | 87.5000 | 87.6190 | 131.9000 | 133.6000 |
| A0-J2 | 128.9580 | 128.9030 | 117.9000 | 119.6000 |
| A0-K0 | 119.4680 | 119.1500 | 104.2020 | 105.9480 |
| G1-J2 | 48.9070 | 48.6810 | 92.2000 | 93.9000 |
| G1-K0 | 58.4890 | 58.0590 | 60.1170 | 61.5870 |
| J2-K0 | 31.0700 | 31.0510 | 3.4010 | 4.6160 |
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 | 60709.36030609 |
| 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 | 87.5 |
| HIERARCH ESO ISS PBL12 END | 87.619 |
| HIERARCH ESO ISS PBLA12 START | 131.9 |
| HIERARCH ESO ISS PBLA12 END | 133.6 |
| HIERARCH ESO ISS PBL13 START | 128.958 |
| HIERARCH ESO ISS PBL13 END | 128.903 |
| HIERARCH ESO ISS PBLA13 START | 117.9 |
| HIERARCH ESO ISS PBLA13 END | 119.6 |
| HIERARCH ESO ISS PBL14 START | 119.468 |
| HIERARCH ESO ISS PBL14 END | 119.15 |
| HIERARCH ESO ISS PBLA14 START | 104.202 |
| HIERARCH ESO ISS PBLA14 END | 105.948 |
| HIERARCH ESO ISS PBL23 START | 48.907 |
| HIERARCH ESO ISS PBL23 END | 48.681 |
| HIERARCH ESO ISS PBLA23 START | 92.2 |
| HIERARCH ESO ISS PBLA23 END | 93.9 |
| HIERARCH ESO ISS PBL24 START | 58.489 |
| HIERARCH ESO ISS PBL24 END | 58.059 |
| HIERARCH ESO ISS PBLA24 START | 60.117 |
| HIERARCH ESO ISS PBLA24 END | 61.587 |
| HIERARCH ESO ISS PBL34 START | 31.07 |
| HIERARCH ESO ISS PBL34 END | 31.051 |
| HIERARCH ESO ISS PBLA34 START | 3.401 |
| HIERARCH ESO ISS PBLA34 END | 4.616 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008109 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005436 |
| HIERARCH ESO ISS AMBI TEMP | 13.75 |
| HIERARCH ESO ISS AMBI FWHM START | 0.69 |
| HIERARCH ESO ISS AMBI FWHM END | 1.04 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |