Exposure
- ID
- GRAVI.2025-11-06T07:24:45.327_2
- Header ID
- GRAVI.2025-11-06T07:24:45.327
- Date updated
- 2025-11-06 07:35:59 UTC+0000
- Release date
- 2026-11-06 07:35:59 UTC+0000
- UTC Start
- 2025-11-06 07:24:45.327
- UTC End
- 2025-11-06 07:26:09.327
- MJD Start
- 60985.30885795
- MJD End
- 60985.30983017223
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0032075000000000003
- Ambient temperature (°C)
- 10.63
- Seeing (arcsec)
- 0.815
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 | 55.4560 | 55.5370 | 32.6000 | 32.8000 |
| U1-U3 | 101.2880 | 101.4150 | 38.4000 | 38.5000 |
| U1-U4 | 129.8540 | 129.7260 | 63.4240 | 63.4290 |
| U2-U3 | 46.4550 | 46.4930 | 45.3000 | 45.4000 |
| U2-U4 | 86.9910 | 86.7020 | 82.4820 | 82.4900 |
| U3-U4 | 57.2940 | 56.9740 | 111.7910 | 111.9530 |
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 | 60985.30885795 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402837 |
| DEC | -2.47383 |
| 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 | 193.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 1.0 |
| HIERARCH ESO DET2 NDIT | 84 |
| HIERARCH ESO ISS PBL12 START | 55.456 |
| HIERARCH ESO ISS PBL12 END | 55.537 |
| HIERARCH ESO ISS PBLA12 START | 32.6 |
| HIERARCH ESO ISS PBLA12 END | 32.8 |
| HIERARCH ESO ISS PBL13 START | 101.288 |
| HIERARCH ESO ISS PBL13 END | 101.415 |
| HIERARCH ESO ISS PBLA13 START | 38.4 |
| HIERARCH ESO ISS PBLA13 END | 38.5 |
| HIERARCH ESO ISS PBL14 START | 129.854 |
| HIERARCH ESO ISS PBL14 END | 129.726 |
| HIERARCH ESO ISS PBLA14 START | 63.424 |
| HIERARCH ESO ISS PBLA14 END | 63.429 |
| HIERARCH ESO ISS PBL23 START | 46.455 |
| HIERARCH ESO ISS PBL23 END | 46.493 |
| HIERARCH ESO ISS PBLA23 START | 45.3 |
| HIERARCH ESO ISS PBLA23 END | 45.4 |
| HIERARCH ESO ISS PBL24 START | 86.991 |
| HIERARCH ESO ISS PBL24 END | 86.702 |
| HIERARCH ESO ISS PBLA24 START | 82.482 |
| HIERARCH ESO ISS PBLA24 END | 82.49 |
| HIERARCH ESO ISS PBL34 START | 57.294 |
| HIERARCH ESO ISS PBL34 END | 56.974 |
| HIERARCH ESO ISS PBLA34 START | 111.791 |
| HIERARCH ESO ISS PBLA34 END | 111.953 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003255 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00316 |
| HIERARCH ESO ISS AMBI TEMP | 10.63 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |