Exposure
- ID
- GRAVI.2024-04-28T01:23:02.685_2
- Header ID
- GRAVI.2024-04-28T01:23:02.685
- Date updated
- 2024-04-28 01:35:24 UTC+0000
- Release date
- 2025-04-28 01:35:24 UTC+0000
- UTC Start
- 2024-04-28 01:23:02.685
- UTC End
- 2024-04-28 01:27:02.685
- MJD Start
- 60428.05766996
- MJD End
- 60428.0604477378
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0039895
- Ambient temperature (°C)
- 17.23
- Seeing (arcsec)
- 0.685
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 | 55.7720 | 55.7030 | 26.9000 | 27.4000 |
| U1-U3 | 101.1430 | 100.9990 | 33.3000 | 33.8000 |
| U1-U4 | 129.5380 | 129.3430 | 61.3980 | 61.9760 |
| U2-U3 | 46.1410 | 46.0680 | 41.1000 | 41.6000 |
| U2-U4 | 89.3480 | 89.2780 | 82.1040 | 82.7230 |
| U3-U4 | 62.3990 | 62.4360 | 111.1540 | 111.7650 |
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 | 60428.05766996 |
| 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 | 55.772 |
| HIERARCH ESO ISS PBL12 END | 55.703 |
| HIERARCH ESO ISS PBLA12 START | 26.9 |
| HIERARCH ESO ISS PBLA12 END | 27.4 |
| HIERARCH ESO ISS PBL13 START | 101.143 |
| HIERARCH ESO ISS PBL13 END | 100.999 |
| HIERARCH ESO ISS PBLA13 START | 33.3 |
| HIERARCH ESO ISS PBLA13 END | 33.8 |
| HIERARCH ESO ISS PBL14 START | 129.538 |
| HIERARCH ESO ISS PBL14 END | 129.343 |
| HIERARCH ESO ISS PBLA14 START | 61.398 |
| HIERARCH ESO ISS PBLA14 END | 61.976 |
| HIERARCH ESO ISS PBL23 START | 46.141 |
| HIERARCH ESO ISS PBL23 END | 46.068 |
| HIERARCH ESO ISS PBLA23 START | 41.1 |
| HIERARCH ESO ISS PBLA23 END | 41.6 |
| HIERARCH ESO ISS PBL24 START | 89.348 |
| HIERARCH ESO ISS PBL24 END | 89.278 |
| HIERARCH ESO ISS PBLA24 START | 82.104 |
| HIERARCH ESO ISS PBLA24 END | 82.723 |
| HIERARCH ESO ISS PBL34 START | 62.399 |
| HIERARCH ESO ISS PBL34 END | 62.436 |
| HIERARCH ESO ISS PBLA34 START | 111.154 |
| HIERARCH ESO ISS PBLA34 END | 111.765 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003607 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004372 |
| HIERARCH ESO ISS AMBI TEMP | 17.23 |
| HIERARCH ESO ISS AMBI FWHM START | 0.77 |
| HIERARCH ESO ISS AMBI FWHM END | 0.6 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |