Exposure
- ID
- GRAVI.2024-04-28T00:49:02.598_2
- Header ID
- GRAVI.2024-04-28T00:49:02.598
- Date updated
- 2024-04-28 01:00:40 UTC+0000
- Release date
- 2025-04-28 01:00:40 UTC+0000
- UTC Start
- 2024-04-28 00:49:02.598
- UTC End
- 2024-04-28 00:53:02.598
- MJD Start
- 60428.03405785
- MJD End
- 60428.0368356278
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0032705
- Ambient temperature (°C)
- 17.39
- Seeing (arcsec)
- 0.79
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 | 56.1820 | 56.1410 | 22.9000 | 23.5000 |
| U1-U3 | 101.9660 | 101.8880 | 29.2000 | 29.7000 |
| U1-U4 | 130.2090 | 130.2030 | 56.7000 | 57.3230 |
| U2-U3 | 46.5270 | 46.4950 | 36.8000 | 37.3000 |
| U2-U4 | 89.1610 | 89.2560 | 77.2100 | 77.8450 |
| U3-U4 | 61.6380 | 61.7830 | 106.5230 | 107.1030 |
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 | 60428.03405785 |
| 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 | 56.182 |
| HIERARCH ESO ISS PBL12 END | 56.141 |
| HIERARCH ESO ISS PBLA12 START | 22.9 |
| HIERARCH ESO ISS PBLA12 END | 23.5 |
| HIERARCH ESO ISS PBL13 START | 101.966 |
| HIERARCH ESO ISS PBL13 END | 101.888 |
| HIERARCH ESO ISS PBLA13 START | 29.2 |
| HIERARCH ESO ISS PBLA13 END | 29.7 |
| HIERARCH ESO ISS PBL14 START | 130.209 |
| HIERARCH ESO ISS PBL14 END | 130.203 |
| HIERARCH ESO ISS PBLA14 START | 56.7 |
| HIERARCH ESO ISS PBLA14 END | 57.323 |
| HIERARCH ESO ISS PBL23 START | 46.527 |
| HIERARCH ESO ISS PBL23 END | 46.495 |
| HIERARCH ESO ISS PBLA23 START | 36.8 |
| HIERARCH ESO ISS PBLA23 END | 37.3 |
| HIERARCH ESO ISS PBL24 START | 89.161 |
| HIERARCH ESO ISS PBL24 END | 89.256 |
| HIERARCH ESO ISS PBLA24 START | 77.21 |
| HIERARCH ESO ISS PBLA24 END | 77.845 |
| HIERARCH ESO ISS PBL34 START | 61.638 |
| HIERARCH ESO ISS PBL34 END | 61.783 |
| HIERARCH ESO ISS PBLA34 START | 106.523 |
| HIERARCH ESO ISS PBLA34 END | 107.103 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003993 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002548 |
| HIERARCH ESO ISS AMBI TEMP | 17.39 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.85 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |