Exposure
- ID
- GRAVI.2024-04-28T01:42:32.734_2
- Header ID
- GRAVI.2024-04-28T01:42:32.734
- Date updated
- 2024-04-28 01:55:24 UTC+0000
- Release date
- 2025-04-28 01:55:24 UTC+0000
- UTC Start
- 2024-04-28 01:42:32.734
- UTC End
- 2024-04-28 01:46:32.734
- MJD Start
- 60428.0712122
- MJD End
- 60428.0739899778
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003923
- Ambient temperature (°C)
- 17.34
- Seeing (arcsec)
- 0.665
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 | 55.4330 | 55.3460 | 29.0000 | 29.5000 |
| U1-U3 | 100.4230 | 100.2340 | 35.5000 | 36.0000 |
| U1-U4 | 128.4670 | 128.1540 | 63.9430 | 64.5010 |
| U2-U3 | 45.7700 | 45.6710 | 43.3000 | 43.8000 |
| U2-U4 | 88.8680 | 88.7010 | 84.8600 | 85.4750 |
| U3-U4 | 62.4630 | 62.4420 | 113.9210 | 114.5540 |
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 | 60428.0712122 |
| 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 | 55.433 |
| HIERARCH ESO ISS PBL12 END | 55.346 |
| HIERARCH ESO ISS PBLA12 START | 29.0 |
| HIERARCH ESO ISS PBLA12 END | 29.5 |
| HIERARCH ESO ISS PBL13 START | 100.423 |
| HIERARCH ESO ISS PBL13 END | 100.234 |
| HIERARCH ESO ISS PBLA13 START | 35.5 |
| HIERARCH ESO ISS PBLA13 END | 36.0 |
| HIERARCH ESO ISS PBL14 START | 128.467 |
| HIERARCH ESO ISS PBL14 END | 128.154 |
| HIERARCH ESO ISS PBLA14 START | 63.943 |
| HIERARCH ESO ISS PBLA14 END | 64.501 |
| HIERARCH ESO ISS PBL23 START | 45.77 |
| HIERARCH ESO ISS PBL23 END | 45.671 |
| HIERARCH ESO ISS PBLA23 START | 43.3 |
| HIERARCH ESO ISS PBLA23 END | 43.8 |
| HIERARCH ESO ISS PBL24 START | 88.868 |
| HIERARCH ESO ISS PBL24 END | 88.701 |
| HIERARCH ESO ISS PBLA24 START | 84.86 |
| HIERARCH ESO ISS PBLA24 END | 85.475 |
| HIERARCH ESO ISS PBL34 START | 62.463 |
| HIERARCH ESO ISS PBL34 END | 62.442 |
| HIERARCH ESO ISS PBLA34 START | 113.921 |
| HIERARCH ESO ISS PBLA34 END | 114.554 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003493 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004353 |
| HIERARCH ESO ISS AMBI TEMP | 17.34 |
| HIERARCH ESO ISS AMBI FWHM START | 0.69 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |