Exposure
- ID
- GRAVI.2025-02-05T08:01:42.255_2
- Header ID
- GRAVI.2025-02-05T08:01:42.255
- Date updated
- 2025-02-05 08:15:39 UTC+0000
- Release date
- 2026-02-05 08:15:39 UTC+0000
- UTC Start
- 2025-02-05 08:01:42.255
- UTC End
- 2025-02-05 08:08:22.255
- MJD Start
- 60711.33451684
- MJD End
- 60711.339146469625
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0177165
- Ambient temperature (°C)
- 14.54
- Seeing (arcsec)
- 0.635
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 | 86.9390 | 87.0820 | 125.1000 | 126.7000 |
| A0-J2 | 129.1400 | 129.1040 | 110.7000 | 112.4000 |
| A0-K0 | 120.7560 | 120.4550 | 96.9540 | 98.6780 |
| G1-J2 | 49.8230 | 49.6080 | 85.1000 | 86.8000 |
| G1-K0 | 60.1920 | 59.7990 | 54.0480 | 55.4870 |
| J2-K0 | 31.0870 | 31.0920 | 358.3170 | 359.5320 |
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 | 60711.33451684 |
| 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 | 86.939 |
| HIERARCH ESO ISS PBL12 END | 87.082 |
| HIERARCH ESO ISS PBLA12 START | 125.1 |
| HIERARCH ESO ISS PBLA12 END | 126.7 |
| HIERARCH ESO ISS PBL13 START | 129.14 |
| HIERARCH ESO ISS PBL13 END | 129.104 |
| HIERARCH ESO ISS PBLA13 START | 110.7 |
| HIERARCH ESO ISS PBLA13 END | 112.4 |
| HIERARCH ESO ISS PBL14 START | 120.756 |
| HIERARCH ESO ISS PBL14 END | 120.455 |
| HIERARCH ESO ISS PBLA14 START | 96.954 |
| HIERARCH ESO ISS PBLA14 END | 98.678 |
| HIERARCH ESO ISS PBL23 START | 49.823 |
| HIERARCH ESO ISS PBL23 END | 49.608 |
| HIERARCH ESO ISS PBLA23 START | 85.1 |
| HIERARCH ESO ISS PBLA23 END | 86.8 |
| HIERARCH ESO ISS PBL24 START | 60.192 |
| HIERARCH ESO ISS PBL24 END | 59.799 |
| HIERARCH ESO ISS PBLA24 START | 54.048 |
| HIERARCH ESO ISS PBLA24 END | 55.487 |
| HIERARCH ESO ISS PBL34 START | 31.087 |
| HIERARCH ESO ISS PBL34 END | 31.092 |
| HIERARCH ESO ISS PBLA34 START | 358.317 |
| HIERARCH ESO ISS PBLA34 END | 359.532 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.018927 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.016506 |
| HIERARCH ESO ISS AMBI TEMP | 14.54 |
| HIERARCH ESO ISS AMBI FWHM START | 0.63 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | CT_Cha |
| HIERARCH ESO FT ROBJ ALPHA | 110409.099 |
| HIERARCH ESO FT ROBJ DELTA | -762719.329 |