Exposure
- ID
- GRAVI.2024-04-28T01:37:47.722_2
- Header ID
- GRAVI.2024-04-28T01:37:47.722
- Date updated
- 2024-04-28 01:50:43 UTC+0000
- Release date
- 2025-04-28 01:50:43 UTC+0000
- UTC Start
- 2024-04-28 01:37:47.722
- UTC End
- 2024-04-28 01:41:47.722
- MJD Start
- 60428.06791345
- MJD End
- 60428.0706912278
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0036465
- Ambient temperature (°C)
- 17.27
- Seeing (arcsec)
- 0.685
Observation
- ID
- 58973
- Category
- science
- Program ID
- 113.26EM.001
- Program Title
- DIRECT CONFIRMATION OF PROTOPLANET CANDIDATES IN TRANSITION DISKS
- Program Type
- Normal
- PI / COI
- BENISTY / BOURDAROT / GINSKI / KAMMERER / LACOUR / BAE / FACCHINI / TEAGUE
Target
- ID
- 43657
- Name
- TW_Hya
- RA
- 165.466270833333
- DEC
- -34.7047313888889
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 55.5230 | 55.4400 | 28.5000 | 29.0000 |
| U1-U3 | 100.6160 | 100.4380 | 35.0000 | 35.5000 |
| U1-U4 | 128.7750 | 128.4910 | 63.3350 | 63.8980 |
| U2-U3 | 45.8710 | 45.7780 | 42.8000 | 43.3000 |
| U2-U4 | 89.0240 | 88.8800 | 84.1940 | 84.8090 |
| U3-U4 | 62.4710 | 62.4640 | 113.2410 | 113.8690 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.26EM.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60428.06791345 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | TW Hya |
| HIERARCH ESO INS SOBJ NAME | TW_Hya |
| RA | 165.468514 |
| DEC | -34.70479 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 263.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 8 |
| HIERARCH ESO ISS PBL12 START | 55.523 |
| HIERARCH ESO ISS PBL12 END | 55.44 |
| HIERARCH ESO ISS PBLA12 START | 28.5 |
| HIERARCH ESO ISS PBLA12 END | 29.0 |
| HIERARCH ESO ISS PBL13 START | 100.616 |
| HIERARCH ESO ISS PBL13 END | 100.438 |
| HIERARCH ESO ISS PBLA13 START | 35.0 |
| HIERARCH ESO ISS PBLA13 END | 35.5 |
| HIERARCH ESO ISS PBL14 START | 128.775 |
| HIERARCH ESO ISS PBL14 END | 128.491 |
| HIERARCH ESO ISS PBLA14 START | 63.335 |
| HIERARCH ESO ISS PBLA14 END | 63.898 |
| HIERARCH ESO ISS PBL23 START | 45.871 |
| HIERARCH ESO ISS PBL23 END | 45.778 |
| HIERARCH ESO ISS PBLA23 START | 42.8 |
| HIERARCH ESO ISS PBLA23 END | 43.3 |
| HIERARCH ESO ISS PBL24 START | 89.024 |
| HIERARCH ESO ISS PBL24 END | 88.88 |
| HIERARCH ESO ISS PBLA24 START | 84.194 |
| HIERARCH ESO ISS PBLA24 END | 84.809 |
| HIERARCH ESO ISS PBL34 START | 62.471 |
| HIERARCH ESO ISS PBL34 END | 62.464 |
| HIERARCH ESO ISS PBLA34 START | 113.241 |
| HIERARCH ESO ISS PBLA34 END | 113.869 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.0038 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003493 |
| HIERARCH ESO ISS AMBI TEMP | 17.27 |
| HIERARCH ESO ISS AMBI FWHM START | 0.68 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |