Exposure
- ID
- GRAVI.2025-07-22T09:22:33.669_1
- Header ID
- GRAVI.2025-07-22T09:22:33.669
- Date updated
- 2025-07-22 09:35:50 UTC+0000
- Release date
- 2025-07-22 09:22:33 UTC+0000
- UTC Start
- 2025-07-22 09:22:33.669
- UTC End
- 2025-07-22 09:29:13.669
- MJD Start
- 60878.39066746
- MJD End
- 60878.39529708963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005848
- Ambient temperature (°C)
- 13.79
- Seeing (arcsec)
- 0.45999999999999996
Observation
- ID
- 68921
- Category
- calibrator
- Program ID
- 115.282L.001
- Program Title
- CALIBRATING ASTEROSEISMOLOGY SCALING RELATIONS BY VLTI OBSERVATION ON GAIA BINARIES
- Program Type
- Normal
- PI / COI
- LU / KRAUS / GARDNER / BECK
Target
- ID
- 51284
- Name
- HD_21818
- RA
- 51.841929
- DEC
- -64.64914
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 75.2420 | 75.8670 | 73.2000 | 74.9000 |
| A0-J2 | 122.5710 | 122.9990 | 53.7000 | 55.4000 |
| A0-K0 | 127.8520 | 127.8950 | 38.4450 | 40.0370 |
| G1-J2 | 57.4760 | 57.4170 | 27.7000 | 29.1000 |
| G1-K0 | 78.7600 | 78.6990 | 5.4380 | 6.5860 |
| J2-K0 | 33.5740 | 33.8330 | 325.0320 | 325.9600 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.282L.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,SINGLE |
| MJD-OBS | 60878.39066746 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 21818 |
| HIERARCH ESO INS SOBJ NAME | HD_21818 |
| RA | 51.841929 |
| DEC | -64.64914 |
| HIERARCH ESO INS SPEC RES | HIGH |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | A0 |
| HIERARCH ESO ISS CONF STATION2 | G1 |
| HIERARCH ESO ISS CONF STATION3 | J2 |
| HIERARCH ESO ISS CONF STATION4 | K0 |
| EXPTIME | 414.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 100.0 |
| HIERARCH ESO DET2 NDIT | 4 |
| HIERARCH ESO ISS PBL12 START | 75.242 |
| HIERARCH ESO ISS PBL12 END | 75.867 |
| HIERARCH ESO ISS PBLA12 START | 73.2 |
| HIERARCH ESO ISS PBLA12 END | 74.9 |
| HIERARCH ESO ISS PBL13 START | 122.571 |
| HIERARCH ESO ISS PBL13 END | 122.999 |
| HIERARCH ESO ISS PBLA13 START | 53.7 |
| HIERARCH ESO ISS PBLA13 END | 55.4 |
| HIERARCH ESO ISS PBL14 START | 127.852 |
| HIERARCH ESO ISS PBL14 END | 127.895 |
| HIERARCH ESO ISS PBLA14 START | 38.445 |
| HIERARCH ESO ISS PBLA14 END | 40.037 |
| HIERARCH ESO ISS PBL23 START | 57.476 |
| HIERARCH ESO ISS PBL23 END | 57.417 |
| HIERARCH ESO ISS PBLA23 START | 27.7 |
| HIERARCH ESO ISS PBLA23 END | 29.1 |
| HIERARCH ESO ISS PBL24 START | 78.76 |
| HIERARCH ESO ISS PBL24 END | 78.699 |
| HIERARCH ESO ISS PBLA24 START | 5.438 |
| HIERARCH ESO ISS PBLA24 END | 6.586 |
| HIERARCH ESO ISS PBL34 START | 33.574 |
| HIERARCH ESO ISS PBL34 END | 33.833 |
| HIERARCH ESO ISS PBLA34 START | 325.032 |
| HIERARCH ESO ISS PBLA34 END | 325.96 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004859 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006837 |
| HIERARCH ESO ISS AMBI TEMP | 13.79 |
| HIERARCH ESO ISS AMBI FWHM START | 0.47 |
| HIERARCH ESO ISS AMBI FWHM END | 0.45 |