Exposure
- ID
- GRAVI.2024-04-29T02:34:00.849_2
- Header ID
- GRAVI.2024-04-29T02:34:00.849
- Date updated
- 2024-04-29 02:45:28 UTC+0000
- Release date
- 2025-04-29 02:45:28 UTC+0000
- UTC Start
- 2024-04-29 02:34:00.849
- UTC End
- 2024-04-29 02:38:00.849
- MJD Start
- 60429.10695427
- MJD End
- 60429.1097320478
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004518
- Ambient temperature (°C)
- 16.17
- Seeing (arcsec)
- 0.625
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 | 53.9540 | 53.8000 | 34.5000 | 34.9000 |
| U1-U3 | 97.1750 | 96.8320 | 41.1000 | 41.5000 |
| U1-U4 | 122.4390 | 121.7630 | 70.7460 | 71.2660 |
| U2-U3 | 44.0140 | 43.8260 | 49.1000 | 49.6000 |
| U2-U4 | 85.1470 | 84.7050 | 92.7600 | 93.4050 |
| U3-U4 | 61.3260 | 61.1620 | 122.4340 | 123.1620 |
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 | 60429.10695427 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | TW Hya |
| HIERARCH ESO INS SOBJ NAME | TW_Hya |
| RA | 165.468945 |
| DEC | -34.70437 |
| 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 | 53.954 |
| HIERARCH ESO ISS PBL12 END | 53.8 |
| HIERARCH ESO ISS PBLA12 START | 34.5 |
| HIERARCH ESO ISS PBLA12 END | 34.9 |
| HIERARCH ESO ISS PBL13 START | 97.175 |
| HIERARCH ESO ISS PBL13 END | 96.832 |
| HIERARCH ESO ISS PBLA13 START | 41.1 |
| HIERARCH ESO ISS PBLA13 END | 41.5 |
| HIERARCH ESO ISS PBL14 START | 122.439 |
| HIERARCH ESO ISS PBL14 END | 121.763 |
| HIERARCH ESO ISS PBLA14 START | 70.746 |
| HIERARCH ESO ISS PBLA14 END | 71.266 |
| HIERARCH ESO ISS PBL23 START | 44.014 |
| HIERARCH ESO ISS PBL23 END | 43.826 |
| HIERARCH ESO ISS PBLA23 START | 49.1 |
| HIERARCH ESO ISS PBLA23 END | 49.6 |
| HIERARCH ESO ISS PBL24 START | 85.147 |
| HIERARCH ESO ISS PBL24 END | 84.705 |
| HIERARCH ESO ISS PBLA24 START | 92.76 |
| HIERARCH ESO ISS PBLA24 END | 93.405 |
| HIERARCH ESO ISS PBL34 START | 61.326 |
| HIERARCH ESO ISS PBL34 END | 61.162 |
| HIERARCH ESO ISS PBLA34 START | 122.434 |
| HIERARCH ESO ISS PBLA34 END | 123.162 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005228 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003808 |
| HIERARCH ESO ISS AMBI TEMP | 16.17 |
| HIERARCH ESO ISS AMBI FWHM START | 0.63 |
| HIERARCH ESO ISS AMBI FWHM END | 0.62 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |