Exposure
- ID
- GRAVI.2025-11-06T08:28:33.489_2
- Header ID
- GRAVI.2025-11-06T08:28:33.489
- Date updated
- 2025-11-06 08:36:02 UTC+0000
- Release date
- 2026-11-06 08:36:01 UTC+0000
- UTC Start
- 2025-11-06 08:28:33.489
- UTC End
- 2025-11-06 08:29:57.489
- MJD Start
- 60985.35316538
- MJD End
- 60985.354137602226
- Exposure time (s)
- 84.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0028895
- Ambient temperature (°C)
- 10.26
- Seeing (arcsec)
- 0.895
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 | 56.5090 | 56.5190 | 34.9000 | 34.9000 |
| U1-U3 | 102.3970 | 102.3830 | 39.9000 | 39.9000 |
| U1-U4 | 123.4840 | 123.2050 | 62.6410 | 62.5920 |
| U2-U3 | 46.3560 | 46.3280 | 45.9000 | 45.9000 |
| U2-U4 | 78.0290 | 77.7010 | 82.3350 | 82.3210 |
| U3-U4 | 49.1620 | 48.9010 | 116.3840 | 116.5540 |
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 | 60985.35316538 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | 51 Eri |
| HIERARCH ESO INS SOBJ NAME | 51_Eri |
| RA | 69.402829 |
| 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 | 56.509 |
| HIERARCH ESO ISS PBL12 END | 56.519 |
| HIERARCH ESO ISS PBLA12 START | 34.9 |
| HIERARCH ESO ISS PBLA12 END | 34.9 |
| HIERARCH ESO ISS PBL13 START | 102.397 |
| HIERARCH ESO ISS PBL13 END | 102.383 |
| HIERARCH ESO ISS PBLA13 START | 39.9 |
| HIERARCH ESO ISS PBLA13 END | 39.9 |
| HIERARCH ESO ISS PBL14 START | 123.484 |
| HIERARCH ESO ISS PBL14 END | 123.205 |
| HIERARCH ESO ISS PBLA14 START | 62.641 |
| HIERARCH ESO ISS PBLA14 END | 62.592 |
| HIERARCH ESO ISS PBL23 START | 46.356 |
| HIERARCH ESO ISS PBL23 END | 46.328 |
| HIERARCH ESO ISS PBLA23 START | 45.9 |
| HIERARCH ESO ISS PBLA23 END | 45.9 |
| HIERARCH ESO ISS PBL24 START | 78.029 |
| HIERARCH ESO ISS PBL24 END | 77.701 |
| HIERARCH ESO ISS PBLA24 START | 82.335 |
| HIERARCH ESO ISS PBLA24 END | 82.321 |
| HIERARCH ESO ISS PBL34 START | 49.162 |
| HIERARCH ESO ISS PBL34 END | 48.901 |
| HIERARCH ESO ISS PBLA34 START | 116.384 |
| HIERARCH ESO ISS PBLA34 END | 116.554 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002791 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002988 |
| HIERARCH ESO ISS AMBI TEMP | 10.26 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.88 |
| HIERARCH ESO FT ROBJ NAME | 51_Eri |
| HIERARCH ESO FT ROBJ ALPHA | 043736.133 |
| HIERARCH ESO FT ROBJ DELTA | -022824.775 |