Exposure
- ID
- GRAVI.2024-04-29T01:55:18.750_2
- Header ID
- GRAVI.2024-04-29T01:55:18.750
- Date updated
- 2024-04-29 02:05:28 UTC+0000
- Release date
- 2025-04-29 02:05:28 UTC+0000
- UTC Start
- 2024-04-29 01:55:18.750
- UTC End
- 2024-04-29 01:59:18.750
- MJD Start
- 60429.08007813
- MJD End
- 60429.0828559078
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003735
- Ambient temperature (°C)
- 15.31
- Seeing (arcsec)
- 0.96
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 | 55.0730 | 54.9670 | 30.8000 | 31.2000 |
| U1-U3 | 99.6400 | 99.4090 | 37.3000 | 37.7000 |
| U1-U4 | 127.1230 | 126.7050 | 66.0570 | 66.5990 |
| U2-U3 | 45.3550 | 45.2300 | 45.2000 | 45.7000 |
| U2-U4 | 88.1100 | 87.8600 | 87.2200 | 87.8370 |
| U3-U4 | 62.3150 | 62.2470 | 116.3780 | 117.0340 |
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 | 60429.08007813 |
| 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 | 55.073 |
| HIERARCH ESO ISS PBL12 END | 54.967 |
| HIERARCH ESO ISS PBLA12 START | 30.8 |
| HIERARCH ESO ISS PBLA12 END | 31.2 |
| HIERARCH ESO ISS PBL13 START | 99.64 |
| HIERARCH ESO ISS PBL13 END | 99.409 |
| HIERARCH ESO ISS PBLA13 START | 37.3 |
| HIERARCH ESO ISS PBLA13 END | 37.7 |
| HIERARCH ESO ISS PBL14 START | 127.123 |
| HIERARCH ESO ISS PBL14 END | 126.705 |
| HIERARCH ESO ISS PBLA14 START | 66.057 |
| HIERARCH ESO ISS PBLA14 END | 66.599 |
| HIERARCH ESO ISS PBL23 START | 45.355 |
| HIERARCH ESO ISS PBL23 END | 45.23 |
| HIERARCH ESO ISS PBLA23 START | 45.2 |
| HIERARCH ESO ISS PBLA23 END | 45.7 |
| HIERARCH ESO ISS PBL24 START | 88.11 |
| HIERARCH ESO ISS PBL24 END | 87.86 |
| HIERARCH ESO ISS PBLA24 START | 87.22 |
| HIERARCH ESO ISS PBLA24 END | 87.837 |
| HIERARCH ESO ISS PBL34 START | 62.315 |
| HIERARCH ESO ISS PBL34 END | 62.247 |
| HIERARCH ESO ISS PBLA34 START | 116.378 |
| HIERARCH ESO ISS PBLA34 END | 117.034 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003624 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003846 |
| HIERARCH ESO ISS AMBI TEMP | 15.31 |
| HIERARCH ESO ISS AMBI FWHM START | 1.03 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |