Exposure
- ID
- GRAVI.2025-11-12T07:25:42.993_2
- Header ID
- GRAVI.2025-11-12T07:25:42.993
- Date updated
- 2025-11-12 07:40:42 UTC+0000
- Release date
- 2026-11-12 07:40:42 UTC+0000
- UTC Start
- 2025-11-12 07:25:42.993
- UTC End
- 2025-11-12 07:31:42.993
- MJD Start
- 60991.30952538
- MJD End
- 60991.313692046664
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0046095
- Ambient temperature (°C)
- 12.73
- Seeing (arcsec)
- 0.685
Observation
- ID
- 71560
- Category
- science
- Program ID
- 116.28QW.001
- Program Title
- CONFIRMATION OF A SATELLITE AND CIRCUM-SUBSTELLAR DISK AROUND DH TAU B WITH GRAVITY-WIDE
- Program Type
- Normal
- PI / COI
- LAZZONI / KAMMERER / PALADINI / KORHONEN / HINKLEY / DESIDERA / GRATTON / KENWORTHY / CHAUVIN / KERVELLA / FAHERTY / LACOUR / BALMER / BHOWMIK / NOGUEIRA / ZURLO / HOY / BOURDAROT
Target
- ID
- 53144
- Name
- DH_Tau_B
- RA
- 67.4231375
- DEC
- 26.549479722222223
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 | 48.8390 | 49.2960 | 40.0000 | 40.0000 |
| U1-U3 | 92.5860 | 93.3470 | 44.5000 | 44.3000 |
| U1-U4 | 130.1020 | 130.1870 | 61.1870 | 60.4830 |
| U2-U3 | 44.0610 | 44.3460 | 49.5000 | 49.1000 |
| U2-U4 | 86.3610 | 85.7760 | 72.9540 | 72.1060 |
| U3-U4 | 49.1820 | 48.1940 | 93.8580 | 93.2040 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.28QW.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60991.30952538 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | DH Tau B |
| HIERARCH ESO INS SOBJ NAME | DH_Tau_B |
| RA | 67.423299 |
| DEC | 26.54961 |
| 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 | 388.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 48.839 |
| HIERARCH ESO ISS PBL12 END | 49.296 |
| HIERARCH ESO ISS PBLA12 START | 40.0 |
| HIERARCH ESO ISS PBLA12 END | 40.0 |
| HIERARCH ESO ISS PBL13 START | 92.586 |
| HIERARCH ESO ISS PBL13 END | 93.347 |
| HIERARCH ESO ISS PBLA13 START | 44.5 |
| HIERARCH ESO ISS PBLA13 END | 44.3 |
| HIERARCH ESO ISS PBL14 START | 130.102 |
| HIERARCH ESO ISS PBL14 END | 130.187 |
| HIERARCH ESO ISS PBLA14 START | 61.187 |
| HIERARCH ESO ISS PBLA14 END | 60.483 |
| HIERARCH ESO ISS PBL23 START | 44.061 |
| HIERARCH ESO ISS PBL23 END | 44.346 |
| HIERARCH ESO ISS PBLA23 START | 49.5 |
| HIERARCH ESO ISS PBLA23 END | 49.1 |
| HIERARCH ESO ISS PBL24 START | 86.361 |
| HIERARCH ESO ISS PBL24 END | 85.776 |
| HIERARCH ESO ISS PBLA24 START | 72.954 |
| HIERARCH ESO ISS PBLA24 END | 72.106 |
| HIERARCH ESO ISS PBL34 START | 49.182 |
| HIERARCH ESO ISS PBL34 END | 48.194 |
| HIERARCH ESO ISS PBLA34 START | 93.858 |
| HIERARCH ESO ISS PBLA34 END | 93.204 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004985 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004234 |
| HIERARCH ESO ISS AMBI TEMP | 12.73 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.66 |
| HIERARCH ESO FT ROBJ NAME | DH_Tau_B |
| HIERARCH ESO FT ROBJ ALPHA | 042941.553 |
| HIERARCH ESO FT ROBJ DELTA | 263258.127 |