Exposure
- ID
- GRAVI.2024-04-28T00:58:44.622_2
- Header ID
- GRAVI.2024-04-28T00:58:44.622
- Date updated
- 2024-04-28 01:10:34 UTC+0000
- Release date
- 2025-04-28 01:10:34 UTC+0000
- UTC Start
- 2024-04-28 00:58:44.622
- UTC End
- 2024-04-28 01:02:44.622
- MJD Start
- 60428.04079424
- MJD End
- 60428.0435720178
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0032625
- Ambient temperature (°C)
- 17.33
- Seeing (arcsec)
- 0.77
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 | 56.0860 | 56.0370 | 24.1000 | 24.6000 |
| U1-U3 | 101.7820 | 101.6870 | 30.4000 | 30.9000 |
| U1-U4 | 130.1650 | 130.1080 | 58.0780 | 58.6870 |
| U2-U3 | 46.4480 | 46.4050 | 38.0000 | 38.6000 |
| U2-U4 | 89.3450 | 89.3940 | 78.6220 | 79.2530 |
| U3-U4 | 61.9420 | 62.0560 | 107.8220 | 108.4120 |
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 | 60428.04079424 |
| 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 | 56.086 |
| HIERARCH ESO ISS PBL12 END | 56.037 |
| HIERARCH ESO ISS PBLA12 START | 24.1 |
| HIERARCH ESO ISS PBLA12 END | 24.6 |
| HIERARCH ESO ISS PBL13 START | 101.782 |
| HIERARCH ESO ISS PBL13 END | 101.687 |
| HIERARCH ESO ISS PBLA13 START | 30.4 |
| HIERARCH ESO ISS PBLA13 END | 30.9 |
| HIERARCH ESO ISS PBL14 START | 130.165 |
| HIERARCH ESO ISS PBL14 END | 130.108 |
| HIERARCH ESO ISS PBLA14 START | 58.078 |
| HIERARCH ESO ISS PBLA14 END | 58.687 |
| HIERARCH ESO ISS PBL23 START | 46.448 |
| HIERARCH ESO ISS PBL23 END | 46.405 |
| HIERARCH ESO ISS PBLA23 START | 38.0 |
| HIERARCH ESO ISS PBLA23 END | 38.6 |
| HIERARCH ESO ISS PBL24 START | 89.345 |
| HIERARCH ESO ISS PBL24 END | 89.394 |
| HIERARCH ESO ISS PBLA24 START | 78.622 |
| HIERARCH ESO ISS PBLA24 END | 79.253 |
| HIERARCH ESO ISS PBL34 START | 61.942 |
| HIERARCH ESO ISS PBL34 END | 62.056 |
| HIERARCH ESO ISS PBLA34 START | 107.822 |
| HIERARCH ESO ISS PBLA34 END | 108.412 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003241 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003284 |
| HIERARCH ESO ISS AMBI TEMP | 17.33 |
| HIERARCH ESO ISS AMBI FWHM START | 0.73 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |