Exposure
- ID
- GRAVI.2025-03-21T05:30:50.276_2
- Header ID
- GRAVI.2025-03-21T05:30:50.276
- Date updated
- 2025-03-21 05:40:57 UTC+0000
- Release date
- 2025-03-21 05:30:50 UTC+0000
- UTC Start
- 2025-03-21 05:30:50.276
- UTC End
- 2025-03-21 05:32:50.276
- MJD Start
- 60755.22974856
- MJD End
- 60755.231137448885
- Exposure time (s)
- 120.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008545
- Ambient temperature (°C)
- 15.88
- Seeing (arcsec)
- 0.38
Observation
- ID
- 64897
- Category
- calibrator
- Program ID
- 114.278L.001
- Program Title
- CONJUNCTIONS OF ALPHA CENTAURI: GRAVITY ASTROMETRY OF THE B-S4 EVENT AND CRIRES CHARACTERIZATION OF SOURCE S5
- Program Type
- Normal
- PI / COI
- KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
- ID
- 37814
- Name
- WDSJ15479-6527A
- RA
- 236.97106666666664
- DEC
- -65.44230777777778
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 G1 J2 K0
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-G1 | 73.7720 | 73.9710 | 67.6000 | 68.2000 |
| A0-J2 | 121.8260 | 121.9590 | 48.5000 | 49.1000 |
| A0-K0 | 127.8020 | 127.8180 | 33.8590 | 34.3860 |
| G1-J2 | 57.4810 | 57.4650 | 23.6000 | 24.1000 |
| G1-K0 | 78.1120 | 78.1040 | 2.1950 | 2.5740 |
| J2-K0 | 32.3150 | 32.4070 | 321.7490 | 322.0570 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 114.278L.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60755.22974856 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | WDSJ15479-6527A |
| HIERARCH ESO INS SOBJ NAME | WDSJ15479-6527B |
| RA | 236.965642 |
| DEC | -65.44268 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | SPLIT |
| 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 | 137.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 73.772 |
| HIERARCH ESO ISS PBL12 END | 73.971 |
| HIERARCH ESO ISS PBLA12 START | 67.6 |
| HIERARCH ESO ISS PBLA12 END | 68.2 |
| HIERARCH ESO ISS PBL13 START | 121.826 |
| HIERARCH ESO ISS PBL13 END | 121.959 |
| HIERARCH ESO ISS PBLA13 START | 48.5 |
| HIERARCH ESO ISS PBLA13 END | 49.1 |
| HIERARCH ESO ISS PBL14 START | 127.802 |
| HIERARCH ESO ISS PBL14 END | 127.818 |
| HIERARCH ESO ISS PBLA14 START | 33.859 |
| HIERARCH ESO ISS PBLA14 END | 34.386 |
| HIERARCH ESO ISS PBL23 START | 57.481 |
| HIERARCH ESO ISS PBL23 END | 57.465 |
| HIERARCH ESO ISS PBLA23 START | 23.6 |
| HIERARCH ESO ISS PBLA23 END | 24.1 |
| HIERARCH ESO ISS PBL24 START | 78.112 |
| HIERARCH ESO ISS PBL24 END | 78.104 |
| HIERARCH ESO ISS PBLA24 START | 2.195 |
| HIERARCH ESO ISS PBLA24 END | 2.574 |
| HIERARCH ESO ISS PBL34 START | 32.315 |
| HIERARCH ESO ISS PBL34 END | 32.407 |
| HIERARCH ESO ISS PBLA34 START | 321.749 |
| HIERARCH ESO ISS PBLA34 END | 322.057 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008545 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008545 |
| HIERARCH ESO ISS AMBI TEMP | 15.88 |
| HIERARCH ESO ISS AMBI FWHM START | 0.37 |
| HIERARCH ESO ISS AMBI FWHM END | 0.39 |
| HIERARCH ESO FT ROBJ NAME | WDSJ15479-6527A |
| HIERARCH ESO FT ROBJ ALPHA | 154753.056 |
| HIERARCH ESO FT ROBJ DELTA | -652632.308 |