Exposure
- ID
- GRAVI.2025-05-28T09:42:04.473_1
- Header ID
- GRAVI.2025-05-28T09:42:04.473
- Date updated
- 2025-05-28 09:56:03 UTC+0000
- Release date
- 2025-05-28 09:42:04 UTC+0000
- UTC Start
- 2025-05-28 09:42:04.473
- UTC End
- 2025-05-28 09:48:44.473
- MJD Start
- 60823.40421844
- MJD End
- 60823.40884806963
- Exposure time (s)
- 400.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033695
- Ambient temperature (°C)
- 11.97
- Seeing (arcsec)
- 1.4500000000000002
Observation
- ID
- 61048
- Category
- calibrator
- Program ID
- 113.26BP.001
- Program Title
- HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART IV
- Program Type
- Normal
- PI / COI
- GALLENNE / PIETRZYNSKI / KERVELLA / MÉRAND / GIEREN / GRACZYK
Target
- ID
- 45409
- Name
- HD_231808
- RA
- 293.438131
- DEC
- 15.24635
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 67.7880 | 66.0980 | 108.1000 | 108.1000 |
| A0-J2 | 113.7130 | 111.8820 | 84.6000 | 84.0000 |
| A0-K0 | 124.6010 | 123.7690 | 67.7440 | 67.1290 |
| G1-J2 | 58.2110 | 58.1590 | 56.9000 | 56.4000 |
| G1-K0 | 85.0980 | 85.6220 | 36.7090 | 36.7250 |
| J2-K0 | 36.4760 | 36.5390 | 3.3190 | 4.3340 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.26BP.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,SINGLE |
| MJD-OBS | 60823.40421844 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD231808 |
| HIERARCH ESO INS SOBJ NAME | HD_231808 |
| RA | 293.438131 |
| DEC | 15.24635 |
| 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 | 67.788 |
| HIERARCH ESO ISS PBL12 END | 66.098 |
| HIERARCH ESO ISS PBLA12 START | 108.1 |
| HIERARCH ESO ISS PBLA12 END | 108.1 |
| HIERARCH ESO ISS PBL13 START | 113.713 |
| HIERARCH ESO ISS PBL13 END | 111.882 |
| HIERARCH ESO ISS PBLA13 START | 84.6 |
| HIERARCH ESO ISS PBLA13 END | 84.0 |
| HIERARCH ESO ISS PBL14 START | 124.601 |
| HIERARCH ESO ISS PBL14 END | 123.769 |
| HIERARCH ESO ISS PBLA14 START | 67.744 |
| HIERARCH ESO ISS PBLA14 END | 67.129 |
| HIERARCH ESO ISS PBL23 START | 58.211 |
| HIERARCH ESO ISS PBL23 END | 58.159 |
| HIERARCH ESO ISS PBLA23 START | 56.9 |
| HIERARCH ESO ISS PBLA23 END | 56.4 |
| HIERARCH ESO ISS PBL24 START | 85.098 |
| HIERARCH ESO ISS PBL24 END | 85.622 |
| HIERARCH ESO ISS PBLA24 START | 36.709 |
| HIERARCH ESO ISS PBLA24 END | 36.725 |
| HIERARCH ESO ISS PBL34 START | 36.476 |
| HIERARCH ESO ISS PBL34 END | 36.539 |
| HIERARCH ESO ISS PBLA34 START | 3.319 |
| HIERARCH ESO ISS PBLA34 END | 4.334 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00235 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004389 |
| HIERARCH ESO ISS AMBI TEMP | 11.97 |
| HIERARCH ESO ISS AMBI FWHM START | 1.59 |
| HIERARCH ESO ISS AMBI FWHM END | 1.31 |