Exposure
- ID
- GRAVI.2025-11-06T08:20:18.468_2
- Header ID
- GRAVI.2025-11-06T08:20:18.468
- Date updated
- 2025-11-06 08:26:19 UTC+0000
- Release date
- 2026-11-06 08:26:19 UTC+0000
- UTC Start
- 2025-11-06 08:20:18.468
- UTC End
- 2025-11-06 08:21:42.468
- MJD Start
- 60985.34743597
- MJD End
- 60985.34840819222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002145
- Ambient temperature (°C)
- 10.22
- Seeing (arcsec)
- 1.2
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 | 56.4480 | 56.4630 | 34.7000 | 34.8000 |
| U1-U3 | 102.4330 | 102.4300 | 39.8000 | 39.8000 |
| U1-U4 | 124.7430 | 124.4920 | 62.8530 | 62.8120 |
| U2-U3 | 46.4740 | 46.4520 | 46.0000 | 45.9000 |
| U2-U4 | 79.5390 | 79.2340 | 82.3950 | 82.3830 |
| U3-U4 | 50.3840 | 50.1340 | 115.6100 | 115.7650 |
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 | 60985.34743597 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402836 |
| DEC | -2.4738 |
| 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 | 56.448 |
| HIERARCH ESO ISS PBL12 END | 56.463 |
| HIERARCH ESO ISS PBLA12 START | 34.7 |
| HIERARCH ESO ISS PBLA12 END | 34.8 |
| HIERARCH ESO ISS PBL13 START | 102.433 |
| HIERARCH ESO ISS PBL13 END | 102.43 |
| HIERARCH ESO ISS PBLA13 START | 39.8 |
| HIERARCH ESO ISS PBLA13 END | 39.8 |
| HIERARCH ESO ISS PBL14 START | 124.743 |
| HIERARCH ESO ISS PBL14 END | 124.492 |
| HIERARCH ESO ISS PBLA14 START | 62.853 |
| HIERARCH ESO ISS PBLA14 END | 62.812 |
| HIERARCH ESO ISS PBL23 START | 46.474 |
| HIERARCH ESO ISS PBL23 END | 46.452 |
| HIERARCH ESO ISS PBLA23 START | 46.0 |
| HIERARCH ESO ISS PBLA23 END | 45.9 |
| HIERARCH ESO ISS PBL24 START | 79.539 |
| HIERARCH ESO ISS PBL24 END | 79.234 |
| HIERARCH ESO ISS PBLA24 START | 82.395 |
| HIERARCH ESO ISS PBLA24 END | 82.383 |
| HIERARCH ESO ISS PBL34 START | 50.384 |
| HIERARCH ESO ISS PBL34 END | 50.134 |
| HIERARCH ESO ISS PBLA34 START | 115.61 |
| HIERARCH ESO ISS PBLA34 END | 115.765 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002145 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002145 |
| HIERARCH ESO ISS AMBI TEMP | 10.22 |
| HIERARCH ESO ISS AMBI FWHM START | 1.2 |
| HIERARCH ESO ISS AMBI FWHM END | 1.2 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |