Exposure
- ID
- GRAVI.2024-04-28T00:44:17.585_2
- Header ID
- GRAVI.2024-04-28T00:44:17.585
- Date updated
- 2024-04-28 00:55:24 UTC+0000
- Release date
- 2025-04-28 00:55:24 UTC+0000
- UTC Start
- 2024-04-28 00:44:17.585
- UTC End
- 2024-04-28 00:48:17.585
- MJD Start
- 60428.03075909
- MJD End
- 60428.0335368678
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003063
- Ambient temperature (°C)
- 17.36
- Seeing (arcsec)
- 0.945
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 | 56.2230 | 56.1850 | 22.3000 | 22.9000 |
| U1-U3 | 102.0430 | 101.9730 | 28.6000 | 29.1000 |
| U1-U4 | 130.1910 | 130.2090 | 56.0160 | 56.6470 |
| U2-U3 | 46.5580 | 46.5300 | 36.1000 | 36.7000 |
| U2-U4 | 89.0340 | 89.1520 | 76.5090 | 77.1530 |
| U3-U4 | 61.4630 | 61.6240 | 105.8880 | 106.4700 |
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 | 60428.03075909 |
| 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 | 56.223 |
| HIERARCH ESO ISS PBL12 END | 56.185 |
| HIERARCH ESO ISS PBLA12 START | 22.3 |
| HIERARCH ESO ISS PBLA12 END | 22.9 |
| HIERARCH ESO ISS PBL13 START | 102.043 |
| HIERARCH ESO ISS PBL13 END | 101.973 |
| HIERARCH ESO ISS PBLA13 START | 28.6 |
| HIERARCH ESO ISS PBLA13 END | 29.1 |
| HIERARCH ESO ISS PBL14 START | 130.191 |
| HIERARCH ESO ISS PBL14 END | 130.209 |
| HIERARCH ESO ISS PBLA14 START | 56.016 |
| HIERARCH ESO ISS PBLA14 END | 56.647 |
| HIERARCH ESO ISS PBL23 START | 46.558 |
| HIERARCH ESO ISS PBL23 END | 46.53 |
| HIERARCH ESO ISS PBLA23 START | 36.1 |
| HIERARCH ESO ISS PBLA23 END | 36.7 |
| HIERARCH ESO ISS PBL24 START | 89.034 |
| HIERARCH ESO ISS PBL24 END | 89.152 |
| HIERARCH ESO ISS PBLA24 START | 76.509 |
| HIERARCH ESO ISS PBLA24 END | 77.153 |
| HIERARCH ESO ISS PBL34 START | 61.463 |
| HIERARCH ESO ISS PBL34 END | 61.624 |
| HIERARCH ESO ISS PBLA34 START | 105.888 |
| HIERARCH ESO ISS PBLA34 END | 106.47 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002664 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003462 |
| HIERARCH ESO ISS AMBI TEMP | 17.36 |
| HIERARCH ESO ISS AMBI FWHM START | 1.1 |
| HIERARCH ESO ISS AMBI FWHM END | 0.79 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |