Exposure
- ID
- GRAVI.2025-11-06T07:58:57.413_2
- Header ID
- GRAVI.2025-11-06T07:58:57.413
- Date updated
- 2025-11-06 08:06:06 UTC+0000
- Release date
- 2026-11-06 08:06:06 UTC+0000
- UTC Start
- 2025-11-06 07:58:57.413
- UTC End
- 2025-11-06 08:00:21.413
- MJD Start
- 60985.33260895
- MJD End
- 60985.33358117222
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002443
- Ambient temperature (°C)
- 10.7
- Seeing (arcsec)
- 0.85
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 | 56.1820 | 56.2090 | 34.1000 | 34.2000 |
| U1-U3 | 102.2750 | 102.3010 | 39.5000 | 39.5000 |
| U1-U4 | 127.4180 | 127.2350 | 63.2430 | 63.2200 |
| U2-U3 | 46.6340 | 46.6290 | 45.9000 | 45.9000 |
| U2-U4 | 82.9800 | 82.7290 | 82.4890 | 82.4840 |
| U3-U4 | 53.3340 | 53.1090 | 113.8810 | 114.0070 |
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 | 60985.33260895 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.40284 |
| DEC | -2.47381 |
| 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 | 56.182 |
| HIERARCH ESO ISS PBL12 END | 56.209 |
| HIERARCH ESO ISS PBLA12 START | 34.1 |
| HIERARCH ESO ISS PBLA12 END | 34.2 |
| HIERARCH ESO ISS PBL13 START | 102.275 |
| HIERARCH ESO ISS PBL13 END | 102.301 |
| HIERARCH ESO ISS PBLA13 START | 39.5 |
| HIERARCH ESO ISS PBLA13 END | 39.5 |
| HIERARCH ESO ISS PBL14 START | 127.418 |
| HIERARCH ESO ISS PBL14 END | 127.235 |
| HIERARCH ESO ISS PBLA14 START | 63.243 |
| HIERARCH ESO ISS PBLA14 END | 63.22 |
| HIERARCH ESO ISS PBL23 START | 46.634 |
| HIERARCH ESO ISS PBL23 END | 46.629 |
| HIERARCH ESO ISS PBLA23 START | 45.9 |
| HIERARCH ESO ISS PBLA23 END | 45.9 |
| HIERARCH ESO ISS PBL24 START | 82.98 |
| HIERARCH ESO ISS PBL24 END | 82.729 |
| HIERARCH ESO ISS PBLA24 START | 82.489 |
| HIERARCH ESO ISS PBLA24 END | 82.484 |
| HIERARCH ESO ISS PBL34 START | 53.334 |
| HIERARCH ESO ISS PBL34 END | 53.109 |
| HIERARCH ESO ISS PBLA34 START | 113.881 |
| HIERARCH ESO ISS PBLA34 END | 114.007 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002443 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002443 |
| HIERARCH ESO ISS AMBI TEMP | 10.7 |
| HIERARCH ESO ISS AMBI FWHM START | 0.85 |
| HIERARCH ESO ISS AMBI FWHM END | 0.85 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |