Exposure
- ID
- GRAVI.2025-11-06T08:33:57.503_2
- Header ID
- GRAVI.2025-11-06T08:33:57.503
- Date updated
- 2025-11-06 08:41:12 UTC+0000
- Release date
- 2026-11-06 08:41:12 UTC+0000
- UTC Start
- 2025-11-06 08:33:57.503
- UTC End
- 2025-11-06 08:34:26.303
- MJD Start
- 60985.35691554
- MJD End
- 60985.357248873326
- Exposure time (s)
- 28.8
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033439999999999998
- Ambient temperature (°C)
- 10.33
- Seeing (arcsec)
- 0.795
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 | 56.5360 | 56.5390 | 35.0000 | 35.0000 |
| U1-U3 | 102.3440 | 102.3340 | 39.9000 | 39.9000 |
| U1-U4 | 122.5970 | 122.4550 | 62.4840 | 62.4580 |
| U2-U3 | 46.2630 | 46.2470 | 45.8000 | 45.8000 |
| U2-U4 | 76.9930 | 76.8280 | 82.2890 | 82.2810 |
| U3-U4 | 48.3430 | 48.2140 | 116.9230 | 117.0100 |
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 | 60985.35691554 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.40284 |
| DEC | -2.47379 |
| 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 | 55.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 96 |
| HIERARCH ESO ISS PBL12 START | 56.536 |
| HIERARCH ESO ISS PBL12 END | 56.539 |
| HIERARCH ESO ISS PBLA12 START | 35.0 |
| HIERARCH ESO ISS PBLA12 END | 35.0 |
| HIERARCH ESO ISS PBL13 START | 102.344 |
| HIERARCH ESO ISS PBL13 END | 102.334 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 122.597 |
| HIERARCH ESO ISS PBL14 END | 122.455 |
| HIERARCH ESO ISS PBLA14 START | 62.484 |
| HIERARCH ESO ISS PBLA14 END | 62.458 |
| HIERARCH ESO ISS PBL23 START | 46.263 |
| HIERARCH ESO ISS PBL23 END | 46.247 |
| HIERARCH ESO ISS PBLA23 START | 45.8 |
| HIERARCH ESO ISS PBLA23 END | 45.8 |
| HIERARCH ESO ISS PBL24 START | 76.993 |
| HIERARCH ESO ISS PBL24 END | 76.828 |
| HIERARCH ESO ISS PBLA24 START | 82.289 |
| HIERARCH ESO ISS PBLA24 END | 82.281 |
| HIERARCH ESO ISS PBL34 START | 48.343 |
| HIERARCH ESO ISS PBL34 END | 48.214 |
| HIERARCH ESO ISS PBLA34 START | 116.923 |
| HIERARCH ESO ISS PBLA34 END | 117.01 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003131 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003557 |
| HIERARCH ESO ISS AMBI TEMP | 10.33 |
| HIERARCH ESO ISS AMBI FWHM START | 0.8 |
| HIERARCH ESO ISS AMBI FWHM END | 0.79 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |