Exposure
- ID
- GRAVI.2021-09-01T08:29:08.010_1
- Header ID
- GRAVI.2021-09-01T08:29:08.010
- Date updated
- 2021-09-01 08:46:01 UTC+0000
- Release date
- 2022-09-01 08:46:01 UTC+0000
- UTC Start
- 2021-09-01 08:29:08.010
- UTC End
- 2021-09-01 08:30:44.010
- MJD Start
- 59458.35356493
- MJD End
- 59458.3546760411
- Exposure time (s)
- 96.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003923
- Ambient temperature (°C)
- 12.5
- Seeing (arcsec)
- 0.56
Observation
- ID
- 48061
- Category
- science
- Program ID
- 104.20UZ.001
- Program Title
- BETELGEUSE IS BECOMING FAINTER: THE HIGH ANGULAR RESOLUTION RESPONSE
- Program Type
- ToO
- PI / COI
- MONTARGES/ CANTALLOUBE/ HUBY/ CANNON/ KERVELLA/ LAGADEC/ DUPREE/ DECIN/ LEBRE/ PERRIN/ LOPEZ ARISTE
Target
- ID
- 36067
- Name
- Betelgeuse
- RA
- 88.790831
- DEC
- 7.40712
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| A0-B2 | 24.9140 | 24.9530 | 139.7000 | 139.4000 |
| A0-D0 | 16.5880 | 16.9450 | 68.9000 | 69.2000 |
| A0-C1 | 19.1500 | 19.2900 | 123.8540 | 123.4730 |
| B2-D0 | 24.9770 | 24.9710 | 358.5000 | 359.1000 |
| B2-C1 | 8.3240 | 8.3220 | 358.4420 | 359.0750 |
| D0-C1 | 16.6530 | 16.6480 | 178.5000 | 179.1350 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 104.20UZ.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,SINGLE |
| MJD-OBS | 59458.35356493 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | Betelgeuse |
| HIERARCH ESO INS SOBJ NAME | Betelgeuse |
| RA | 88.790831 |
| DEC | 7.40712 |
| HIERARCH ESO INS SPEC RES | HIGH |
| 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 | 194.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 0.3 |
| HIERARCH ESO DET2 NDIT | 320 |
| HIERARCH ESO ISS PBL12 START | 24.914 |
| HIERARCH ESO ISS PBL12 END | 24.953 |
| HIERARCH ESO ISS PBLA12 START | 139.7 |
| HIERARCH ESO ISS PBLA12 END | 139.4 |
| HIERARCH ESO ISS PBL13 START | 16.588 |
| HIERARCH ESO ISS PBL13 END | 16.945 |
| HIERARCH ESO ISS PBLA13 START | 68.9 |
| HIERARCH ESO ISS PBLA13 END | 69.2 |
| HIERARCH ESO ISS PBL14 START | 19.15 |
| HIERARCH ESO ISS PBL14 END | 19.29 |
| HIERARCH ESO ISS PBLA14 START | 123.854 |
| HIERARCH ESO ISS PBLA14 END | 123.473 |
| HIERARCH ESO ISS PBL23 START | 24.977 |
| HIERARCH ESO ISS PBL23 END | 24.971 |
| HIERARCH ESO ISS PBLA23 START | 358.5 |
| HIERARCH ESO ISS PBLA23 END | 359.1 |
| HIERARCH ESO ISS PBL24 START | 8.324 |
| HIERARCH ESO ISS PBL24 END | 8.322 |
| HIERARCH ESO ISS PBLA24 START | 358.442 |
| HIERARCH ESO ISS PBLA24 END | 359.075 |
| HIERARCH ESO ISS PBL34 START | 16.653 |
| HIERARCH ESO ISS PBL34 END | 16.648 |
| HIERARCH ESO ISS PBLA34 START | 178.5 |
| HIERARCH ESO ISS PBLA34 END | 179.135 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00366 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004186 |
| HIERARCH ESO ISS AMBI TEMP | 12.5 |
| HIERARCH ESO ISS AMBI FWHM START | 0.55 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |