Exposure
- ID
- GRAVI.2024-04-28T01:08:14.646_2
- Header ID
- GRAVI.2024-04-28T01:08:14.646
- Date updated
- 2024-04-28 01:20:41 UTC+0000
- Release date
- 2025-04-28 01:20:41 UTC+0000
- UTC Start
- 2024-04-28 01:08:14.646
- UTC End
- 2024-04-28 01:12:14.646
- MJD Start
- 60428.04739174
- MJD End
- 60428.0501695178
- Exposure time (s)
- 240.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035705
- Ambient temperature (°C)
- 17.42
- Seeing (arcsec)
- 0.705
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 | 55.9760 | 55.9200 | 25.2000 | 25.7000 |
| U1-U3 | 101.5640 | 101.4500 | 31.6000 | 32.1000 |
| U1-U4 | 130.0100 | 129.9000 | 59.3960 | 59.9940 |
| U2-U3 | 46.3470 | 46.2930 | 39.2000 | 39.8000 |
| U2-U4 | 89.4250 | 89.4280 | 79.9920 | 80.6180 |
| U3-U4 | 62.1720 | 62.2550 | 109.1110 | 109.7090 |
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 | 60428.04739174 |
| 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 | 55.976 |
| HIERARCH ESO ISS PBL12 END | 55.92 |
| HIERARCH ESO ISS PBLA12 START | 25.2 |
| HIERARCH ESO ISS PBLA12 END | 25.7 |
| HIERARCH ESO ISS PBL13 START | 101.564 |
| HIERARCH ESO ISS PBL13 END | 101.45 |
| HIERARCH ESO ISS PBLA13 START | 31.6 |
| HIERARCH ESO ISS PBLA13 END | 32.1 |
| HIERARCH ESO ISS PBL14 START | 130.01 |
| HIERARCH ESO ISS PBL14 END | 129.9 |
| HIERARCH ESO ISS PBLA14 START | 59.396 |
| HIERARCH ESO ISS PBLA14 END | 59.994 |
| HIERARCH ESO ISS PBL23 START | 46.347 |
| HIERARCH ESO ISS PBL23 END | 46.293 |
| HIERARCH ESO ISS PBLA23 START | 39.2 |
| HIERARCH ESO ISS PBLA23 END | 39.8 |
| HIERARCH ESO ISS PBL24 START | 89.425 |
| HIERARCH ESO ISS PBL24 END | 89.428 |
| HIERARCH ESO ISS PBLA24 START | 79.992 |
| HIERARCH ESO ISS PBLA24 END | 80.618 |
| HIERARCH ESO ISS PBL34 START | 62.172 |
| HIERARCH ESO ISS PBL34 END | 62.255 |
| HIERARCH ESO ISS PBLA34 START | 109.111 |
| HIERARCH ESO ISS PBLA34 END | 109.709 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003596 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003545 |
| HIERARCH ESO ISS AMBI TEMP | 17.42 |
| HIERARCH ESO ISS AMBI FWHM START | 0.69 |
| HIERARCH ESO ISS AMBI FWHM END | 0.72 |
| HIERARCH ESO FT ROBJ NAME | TW_Hya |
| HIERARCH ESO FT ROBJ ALPHA | 110151.905 |
| HIERARCH ESO FT ROBJ DELTA | -344217.033 |