Exposure
- ID
- GRAVI.2025-02-03T08:09:05.370_2
- Header ID
- GRAVI.2025-02-03T08:09:05.370
- Date updated
- 2025-02-03 08:25:40 UTC+0000
- Release date
- 2026-02-03 08:25:39 UTC+0000
- UTC Start
- 2025-02-03 08:09:05.370
- UTC End
- 2025-02-03 08:15:45.370
- MJD Start
- 60709.33964549
- MJD End
- 60709.34427511963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0089985
- Ambient temperature (°C)
- 13.91
- Seeing (arcsec)
- 0.63
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 | 86.9290 | 87.0720 | 125.0000 | 126.6000 |
| A0-J2 | 129.1420 | 129.1070 | 110.6000 | 112.3000 |
| A0-K0 | 120.7770 | 120.4760 | 96.8370 | 98.5610 |
| G1-J2 | 49.8380 | 49.6230 | 85.0000 | 86.7000 |
| G1-K0 | 60.2180 | 59.8260 | 53.9510 | 55.3900 |
| J2-K0 | 31.0860 | 31.0910 | 358.2350 | 359.4500 |
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 | 60709.33964549 |
| 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 | 86.929 |
| HIERARCH ESO ISS PBL12 END | 87.072 |
| HIERARCH ESO ISS PBLA12 START | 125.0 |
| HIERARCH ESO ISS PBLA12 END | 126.6 |
| HIERARCH ESO ISS PBL13 START | 129.142 |
| HIERARCH ESO ISS PBL13 END | 129.107 |
| HIERARCH ESO ISS PBLA13 START | 110.6 |
| HIERARCH ESO ISS PBLA13 END | 112.3 |
| HIERARCH ESO ISS PBL14 START | 120.777 |
| HIERARCH ESO ISS PBL14 END | 120.476 |
| HIERARCH ESO ISS PBLA14 START | 96.837 |
| HIERARCH ESO ISS PBLA14 END | 98.561 |
| HIERARCH ESO ISS PBL23 START | 49.838 |
| HIERARCH ESO ISS PBL23 END | 49.623 |
| HIERARCH ESO ISS PBLA23 START | 85.0 |
| HIERARCH ESO ISS PBLA23 END | 86.7 |
| HIERARCH ESO ISS PBL24 START | 60.218 |
| HIERARCH ESO ISS PBL24 END | 59.826 |
| HIERARCH ESO ISS PBLA24 START | 53.951 |
| HIERARCH ESO ISS PBLA24 END | 55.39 |
| HIERARCH ESO ISS PBL34 START | 31.086 |
| HIERARCH ESO ISS PBL34 END | 31.091 |
| HIERARCH ESO ISS PBLA34 START | 358.235 |
| HIERARCH ESO ISS PBLA34 END | 359.45 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008788 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009209 |
| HIERARCH ESO ISS AMBI TEMP | 13.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.66 |
| HIERARCH ESO ISS AMBI FWHM END | 0.6 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |