Exposure
- ID
- GRAVI.2024-04-28T01:27:47.697_2
- Header ID
- GRAVI.2024-04-28T01:27:47.697
- Date updated
- 2024-04-28 01:40:37 UTC+0000
- Release date
- 2025-04-28 01:40:37 UTC+0000
- UTC Start
- 2024-04-28 01:27:47.697
- UTC End
- 2024-04-28 01:31:47.697
- MJD Start
- 60428.06096871
- MJD End
- 60428.0637464878
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004198
- Ambient temperature (°C)
- 17.24
- Seeing (arcsec)
- 0.615
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 | 55.6970 | 55.6240 | 27.4000 | 27.9000 |
| U1-U3 | 100.9850 | 100.8300 | 33.9000 | 34.3000 |
| U1-U4 | 129.3240 | 129.1010 | 62.0300 | 62.6020 |
| U2-U3 | 46.0610 | 45.9820 | 41.6000 | 42.1000 |
| U2-U4 | 89.2710 | 89.1770 | 82.7810 | 83.3970 |
| U3-U4 | 62.4390 | 62.4620 | 111.8230 | 112.4380 |
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 | 60428.06096871 |
| 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 | 55.697 |
| HIERARCH ESO ISS PBL12 END | 55.624 |
| HIERARCH ESO ISS PBLA12 START | 27.4 |
| HIERARCH ESO ISS PBLA12 END | 27.9 |
| HIERARCH ESO ISS PBL13 START | 100.985 |
| HIERARCH ESO ISS PBL13 END | 100.83 |
| HIERARCH ESO ISS PBLA13 START | 33.9 |
| HIERARCH ESO ISS PBLA13 END | 34.3 |
| HIERARCH ESO ISS PBL14 START | 129.324 |
| HIERARCH ESO ISS PBL14 END | 129.101 |
| HIERARCH ESO ISS PBLA14 START | 62.03 |
| HIERARCH ESO ISS PBLA14 END | 62.602 |
| HIERARCH ESO ISS PBL23 START | 46.061 |
| HIERARCH ESO ISS PBL23 END | 45.982 |
| HIERARCH ESO ISS PBLA23 START | 41.6 |
| HIERARCH ESO ISS PBLA23 END | 42.1 |
| HIERARCH ESO ISS PBL24 START | 89.271 |
| HIERARCH ESO ISS PBL24 END | 89.177 |
| HIERARCH ESO ISS PBLA24 START | 82.781 |
| HIERARCH ESO ISS PBLA24 END | 83.397 |
| HIERARCH ESO ISS PBL34 START | 62.439 |
| HIERARCH ESO ISS PBL34 END | 62.462 |
| HIERARCH ESO ISS PBLA34 START | 111.823 |
| HIERARCH ESO ISS PBLA34 END | 112.438 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004372 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004024 |
| HIERARCH ESO ISS AMBI TEMP | 17.24 |
| HIERARCH ESO ISS AMBI FWHM START | 0.6 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |