Exposure
- ID
- GRAVI.2025-12-05T02:27:33.500_2
- Header ID
- GRAVI.2025-12-05T02:27:33.500
- Date updated
- 2025-12-05 02:35:56 UTC+0000
- Release date
- 2026-12-05 02:35:56 UTC+0000
- UTC Start
- 2025-12-05 02:27:33.500
- UTC End
- 2025-12-05 02:28:57.500
- MJD Start
- 61014.10247107
- MJD End
- 61014.103443292224
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005059
- Ambient temperature (°C)
- 12.69
- Seeing (arcsec)
- 0.69
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 | 48.8010 | 48.8530 | 13.5000 | 13.8000 |
| U1-U3 | 86.5530 | 86.7020 | 20.6000 | 20.8000 |
| U1-U4 | 105.7930 | 106.2680 | 54.3090 | 54.5120 |
| U2-U3 | 38.5910 | 38.6910 | 29.5000 | 29.8000 |
| U2-U4 | 75.8840 | 76.2410 | 79.1660 | 79.2360 |
| U3-U4 | 58.7910 | 58.9440 | 109.1900 | 109.1570 |
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 | 61014.10247107 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402559 |
| DEC | -2.47415 |
| 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 | 48.801 |
| HIERARCH ESO ISS PBL12 END | 48.853 |
| HIERARCH ESO ISS PBLA12 START | 13.5 |
| HIERARCH ESO ISS PBLA12 END | 13.8 |
| HIERARCH ESO ISS PBL13 START | 86.553 |
| HIERARCH ESO ISS PBL13 END | 86.702 |
| HIERARCH ESO ISS PBLA13 START | 20.6 |
| HIERARCH ESO ISS PBLA13 END | 20.8 |
| HIERARCH ESO ISS PBL14 START | 105.793 |
| HIERARCH ESO ISS PBL14 END | 106.268 |
| HIERARCH ESO ISS PBLA14 START | 54.309 |
| HIERARCH ESO ISS PBLA14 END | 54.512 |
| HIERARCH ESO ISS PBL23 START | 38.591 |
| HIERARCH ESO ISS PBL23 END | 38.691 |
| HIERARCH ESO ISS PBLA23 START | 29.5 |
| HIERARCH ESO ISS PBLA23 END | 29.8 |
| HIERARCH ESO ISS PBL24 START | 75.884 |
| HIERARCH ESO ISS PBL24 END | 76.241 |
| HIERARCH ESO ISS PBLA24 START | 79.166 |
| HIERARCH ESO ISS PBLA24 END | 79.236 |
| HIERARCH ESO ISS PBL34 START | 58.791 |
| HIERARCH ESO ISS PBL34 END | 58.944 |
| HIERARCH ESO ISS PBLA34 START | 109.19 |
| HIERARCH ESO ISS PBLA34 END | 109.157 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004989 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005129 |
| HIERARCH ESO ISS AMBI TEMP | 12.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.69 |
| HIERARCH ESO ISS AMBI FWHM END | 0.69 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |