Exposure
- ID
- PIONI.2025-10-30T06:24:11.721_1
- Header ID
- PIONI.2025-10-30T06:24:11.721
- Date updated
- 2025-10-30 06:30:45 UTC+0000
- Release date
- 2026-10-30 06:30:45 UTC+0000
- UTC Start
- 2025-10-30 06:24:11.721
- UTC End
- 2025-10-30 06:25:02.921
- MJD Start
- 60978.2668023282
- MJD End
- 60978.2673949208
- Exposure time (s)
- 51.2
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0065585
- Ambient temperature (°C)
- 12.45
- Seeing (arcsec)
- 0.405
Observation
- ID
- 71064
- Category
- science
- Program ID
- 116.290A.002
- Program Title
- CONSTRAINING ASTEROSEISMIC MODELS OF MASSIVE OB STARS USING HIGH-PRECISION INTERFEROMETRY
- Program Type
- Normal
- PI / COI
- VRANCKEN / DESHMUKH / SANA / TKACHENKO / AERTS / KLIAPETS
Target
- ID
- 52744
- Name
- HD 31331
- RA
- 73.710183
- DEC
- 0.46714
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 90.4540 | 90.4410 | 113.5000 | 113.5000 |
| A0-J2 | 127.8620 | 127.9460 | 92.7000 | 92.7000 |
| A0-K0 | 122.3490 | 122.5090 | 72.1540 | 72.1760 |
| G1-J2 | 53.9520 | 54.0340 | 56.1000 | 56.1000 |
| G1-K0 | 80.8330 | 80.9090 | 24.4860 | 24.6020 |
| J2-K0 | 44.8870 | 44.8660 | 345.4660 | 345.5680 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 116.290A.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | FRINGE,OBJECT |
| MJD-OBS | 60978.2668023282 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY |
| HIERARCH ESO OBS TARG NAME | HD 31331 |
| RA | 73.710183 |
| DEC | 0.46714 |
| HIERARCH ESO INS OPTI2 NAME | GRISM |
| HIERARCH ESO INS OPTI2 ID | GRISM |
| HIERARCH ESO INS FILT1 NAME | H |
| 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 |
| HIERARCH ESO DET DIT | 0.001 |
| HIERARCH ESO DET NDIT | 51200 |
| HIERARCH ESO ISS PBL12 START | 90.454 |
| HIERARCH ESO ISS PBL12 END | 90.441 |
| HIERARCH ESO ISS PBLA12 START | 113.5 |
| HIERARCH ESO ISS PBLA12 END | 113.5 |
| HIERARCH ESO ISS PBL13 START | 127.862 |
| HIERARCH ESO ISS PBL13 END | 127.946 |
| HIERARCH ESO ISS PBLA13 START | 92.7 |
| HIERARCH ESO ISS PBLA13 END | 92.7 |
| HIERARCH ESO ISS PBL14 START | 122.349 |
| HIERARCH ESO ISS PBL14 END | 122.509 |
| HIERARCH ESO ISS PBLA14 START | 72.154 |
| HIERARCH ESO ISS PBLA14 END | 72.176 |
| HIERARCH ESO ISS PBL23 START | 53.952 |
| HIERARCH ESO ISS PBL23 END | 54.034 |
| HIERARCH ESO ISS PBLA23 START | 56.1 |
| HIERARCH ESO ISS PBLA23 END | 56.1 |
| HIERARCH ESO ISS PBL24 START | 80.833 |
| HIERARCH ESO ISS PBL24 END | 80.909 |
| HIERARCH ESO ISS PBLA24 START | 24.486 |
| HIERARCH ESO ISS PBLA24 END | 24.602 |
| HIERARCH ESO ISS PBL34 START | 44.887 |
| HIERARCH ESO ISS PBL34 END | 44.866 |
| HIERARCH ESO ISS PBLA34 START | 345.466 |
| HIERARCH ESO ISS PBLA34 END | 345.568 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006292 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006825 |
| HIERARCH ESO ISS AMBI TEMP | 12.45 |
| HIERARCH ESO ISS AMBI FWHM START | 0.42 |
| HIERARCH ESO ISS AMBI FWHM END | 0.39 |