Exposure
- ID
- GRAVI.2023-01-14T01:49:20.887_2
- Header ID
- GRAVI.2023-01-14T01:49:20.887
- Date updated
- 2023-01-14 01:56:34 UTC+0000
- Release date
- 2023-01-14 01:56:34 UTC+0000
- UTC Start
- 2023-01-14 01:49:20.887
- UTC End
- 2023-01-14 01:49:30.487
- MJD Start
- 59958.07593619
- MJD End
- 59958.0760473011
- Exposure time (s)
- 9.6
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031505
- Ambient temperature (°C)
- 11.37
- Seeing (arcsec)
- 1.005
Observation
- ID
- 53860
- Category
- science
- Program ID
- 60.A-9801(U)
- Program Title
- TECHNICAL TIME
- Program Type
- Normal
- PI / COI
- OBSERVATORY, P
Target
- ID
- 40044
- Name
- Betelgeuse
- RA
- 96.195575
- DEC
- 3.76326138888889
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- A0 B2 D0 C1
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 25.2280 | 25.2250 | 136.1000 | 136.1000 |
| A0-D0 | 26.5520 | 26.5860 | 71.8000 | 71.8000 |
| A0-C1 | 22.1320 | 22.1410 | 114.9970 | 114.9790 |
| B2-D0 | 27.5880 | 27.6000 | 16.3000 | 16.3000 |
| B2-C1 | 9.1910 | 9.1950 | 16.2020 | 16.2740 |
| D0-C1 | 18.3970 | 18.4050 | 196.2770 | 196.3500 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 60.A-9801(U) |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59958.07593619 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | HD 44945 |
| HIERARCH ESO INS SOBJ NAME | Nothing |
| RA | 96.193343 |
| DEC | 3.76339 |
| 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 | B2 |
| HIERARCH ESO ISS CONF STATION3 | D0 |
| HIERARCH ESO ISS CONF STATION4 | C1 |
| EXPTIME | 32.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 25.228 |
| HIERARCH ESO ISS PBL12 END | 25.225 |
| HIERARCH ESO ISS PBLA12 START | 136.1 |
| HIERARCH ESO ISS PBLA12 END | 136.1 |
| HIERARCH ESO ISS PBL13 START | 26.552 |
| HIERARCH ESO ISS PBL13 END | 26.586 |
| HIERARCH ESO ISS PBLA13 START | 71.8 |
| HIERARCH ESO ISS PBLA13 END | 71.8 |
| HIERARCH ESO ISS PBL14 START | 22.132 |
| HIERARCH ESO ISS PBL14 END | 22.141 |
| HIERARCH ESO ISS PBLA14 START | 114.997 |
| HIERARCH ESO ISS PBLA14 END | 114.979 |
| HIERARCH ESO ISS PBL23 START | 27.588 |
| HIERARCH ESO ISS PBL23 END | 27.6 |
| HIERARCH ESO ISS PBLA23 START | 16.3 |
| HIERARCH ESO ISS PBLA23 END | 16.3 |
| HIERARCH ESO ISS PBL24 START | 9.191 |
| HIERARCH ESO ISS PBL24 END | 9.195 |
| HIERARCH ESO ISS PBLA24 START | 16.202 |
| HIERARCH ESO ISS PBLA24 END | 16.274 |
| HIERARCH ESO ISS PBL34 START | 18.397 |
| HIERARCH ESO ISS PBL34 END | 18.405 |
| HIERARCH ESO ISS PBLA34 START | 196.277 |
| HIERARCH ESO ISS PBLA34 END | 196.35 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003173 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003128 |
| HIERARCH ESO ISS AMBI TEMP | 11.37 |
| HIERARCH ESO ISS AMBI FWHM START | 0.97 |
| HIERARCH ESO ISS AMBI FWHM END | 1.04 |
| HIERARCH ESO FT ROBJ NAME | Betelgeuse |
| HIERARCH ESO FT ROBJ ALPHA | 062446.938 |
| HIERARCH ESO FT ROBJ DELTA | 034547.741 |