Exposure
- ID
- GRAVI.2024-04-29T02:38:45.861_2
- Header ID
- GRAVI.2024-04-29T02:38:45.861
- Date updated
- 2024-04-29 02:50:43 UTC+0000
- Release date
- 2025-04-29 02:50:43 UTC+0000
- UTC Start
- 2024-04-29 02:38:45.861
- UTC End
- 2024-04-29 02:42:45.861
- MJD Start
- 60429.11025302
- MJD End
- 60429.1130307978
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004443
- Ambient temperature (°C)
- 16.02
- Seeing (arcsec)
- 0.57
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 | 53.7850 | 53.6260 | 34.9000 | 35.3000 |
| U1-U3 | 96.8010 | 96.4460 | 41.5000 | 41.9000 |
| U1-U4 | 121.7010 | 120.9990 | 71.3130 | 71.8280 |
| U2-U3 | 43.8080 | 43.6130 | 49.6000 | 50.0000 |
| U2-U4 | 84.6640 | 84.2030 | 93.4640 | 94.1100 |
| U3-U4 | 61.1470 | 60.9750 | 123.2290 | 123.9610 |
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 | 60429.11025302 |
| 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 | 53.785 |
| HIERARCH ESO ISS PBL12 END | 53.626 |
| HIERARCH ESO ISS PBLA12 START | 34.9 |
| HIERARCH ESO ISS PBLA12 END | 35.3 |
| HIERARCH ESO ISS PBL13 START | 96.801 |
| HIERARCH ESO ISS PBL13 END | 96.446 |
| HIERARCH ESO ISS PBLA13 START | 41.5 |
| HIERARCH ESO ISS PBLA13 END | 41.9 |
| HIERARCH ESO ISS PBL14 START | 121.701 |
| HIERARCH ESO ISS PBL14 END | 120.999 |
| HIERARCH ESO ISS PBLA14 START | 71.313 |
| HIERARCH ESO ISS PBLA14 END | 71.828 |
| HIERARCH ESO ISS PBL23 START | 43.808 |
| HIERARCH ESO ISS PBL23 END | 43.613 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.0 |
| HIERARCH ESO ISS PBL24 START | 84.664 |
| HIERARCH ESO ISS PBL24 END | 84.203 |
| HIERARCH ESO ISS PBLA24 START | 93.464 |
| HIERARCH ESO ISS PBLA24 END | 94.11 |
| HIERARCH ESO ISS PBL34 START | 61.147 |
| HIERARCH ESO ISS PBL34 END | 60.975 |
| HIERARCH ESO ISS PBLA34 START | 123.229 |
| HIERARCH ESO ISS PBLA34 END | 123.961 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003808 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005078 |
| HIERARCH ESO ISS AMBI TEMP | 16.02 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.52 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |