Exposure
- ID
- GRAVI.2025-11-06T07:48:54.388_2
- Header ID
- GRAVI.2025-11-06T07:48:54.388
- Date updated
- 2025-11-06 07:56:00 UTC+0000
- Release date
- 2026-11-06 07:55:59 UTC+0000
- UTC Start
- 2025-11-06 07:48:54.388
- UTC End
- 2025-11-06 07:50:18.388
- MJD Start
- 60985.32562949
- MJD End
- 60985.32660171222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002706
- Ambient temperature (°C)
- 10.65
- Seeing (arcsec)
- 0.925
Observation
- ID
- 71173
- Category
- science
- Program ID
- 116.29H7.001
- Program Title
- GPAO COMMISSIONING
- Program Type
- Normal
- PI / COI
- TEAM
Target
- ID
- 45803
- Name
- 51_Eri
- RA
- 69.40055416666667
- DEC
- -2.473548611111111
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 | 56.0050 | 56.0380 | 33.7000 | 33.8000 |
| U1-U3 | 102.0760 | 102.1170 | 39.2000 | 39.3000 |
| U1-U4 | 128.3730 | 128.2200 | 63.3510 | 63.3360 |
| U2-U3 | 46.6360 | 46.6390 | 45.8000 | 45.8000 |
| U2-U4 | 84.3550 | 84.1250 | 82.5060 | 82.5040 |
| U3-U4 | 54.6030 | 54.3860 | 113.1880 | 113.3040 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.29H7.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60985.32562949 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402836 |
| DEC | -2.47381 |
| 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 | 109.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 84 |
| HIERARCH ESO ISS PBL12 START | 56.005 |
| HIERARCH ESO ISS PBL12 END | 56.038 |
| HIERARCH ESO ISS PBLA12 START | 33.7 |
| HIERARCH ESO ISS PBLA12 END | 33.8 |
| HIERARCH ESO ISS PBL13 START | 102.076 |
| HIERARCH ESO ISS PBL13 END | 102.117 |
| HIERARCH ESO ISS PBLA13 START | 39.2 |
| HIERARCH ESO ISS PBLA13 END | 39.3 |
| HIERARCH ESO ISS PBL14 START | 128.373 |
| HIERARCH ESO ISS PBL14 END | 128.22 |
| HIERARCH ESO ISS PBLA14 START | 63.351 |
| HIERARCH ESO ISS PBLA14 END | 63.336 |
| HIERARCH ESO ISS PBL23 START | 46.636 |
| HIERARCH ESO ISS PBL23 END | 46.639 |
| HIERARCH ESO ISS PBLA23 START | 45.8 |
| HIERARCH ESO ISS PBLA23 END | 45.8 |
| HIERARCH ESO ISS PBL24 START | 84.355 |
| HIERARCH ESO ISS PBL24 END | 84.125 |
| HIERARCH ESO ISS PBLA24 START | 82.506 |
| HIERARCH ESO ISS PBLA24 END | 82.504 |
| HIERARCH ESO ISS PBL34 START | 54.603 |
| HIERARCH ESO ISS PBL34 END | 54.386 |
| HIERARCH ESO ISS PBLA34 START | 113.188 |
| HIERARCH ESO ISS PBLA34 END | 113.304 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002969 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002443 |
| HIERARCH ESO ISS AMBI TEMP | 10.65 |
| HIERARCH ESO ISS AMBI FWHM START | 0.99 |
| HIERARCH ESO ISS AMBI FWHM END | 0.86 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |