Exposure
- ID
- GRAVI.2021-04-02T07:58:51.400_2
- Header ID
- GRAVI.2021-04-02T07:58:51.400
- Date updated
- 2021-09-29 14:27:08 UTC+0000
- Release date
- 2022-04-02 08:15:50 UTC+0000
- UTC Start
- 2021-04-02 07:58:51.400
- UTC End
- 2021-04-02 08:04:11.400
- MJD Start
- 59306.33253935
- MJD End
- 59306.3362430537
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002644
- Ambient temperature (°C)
- 11.91
- Seeing (arcsec)
- 1.02
Observation
- ID
- 47375
- Category
- science
- Program ID
- 106.217D.002
- Program Title
- HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
- Program Type
- Monitoring
- PI / COI
- KERVELLA/ M\XC3\XA9RAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
- ID
- 35533
- Name
- AlphaCenB_2021_04_01
- RA
- 219.855329166667
- DEC
- -60.8305047222222
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
Baseline | Length start | Length end | Angle start | Angle end |
---|---|---|---|---|
U1-U2 | 44.5840 | 44.2900 | 43.2000 | 44.1000 |
U1-U3 | 82.0440 | 81.4540 | 51.1000 | 52.0000 |
U1-U4 | 116.7840 | 116.0790 | 81.7580 | 82.9670 |
U2-U3 | 38.3610 | 38.0770 | 60.2000 | 61.2000 |
U2-U4 | 86.4780 | 86.1990 | 100.4830 | 101.7750 |
U3-U4 | 62.3590 | 62.3940 | 123.9190 | 125.1530 |
Header: used keywords
Key | Value |
---|---|
HIERARCH ESO OBS PROG ID | 106.217D.002 |
HIERARCH ESO DPR CATG | SCIENCE |
HIERARCH ESO DPR TYPE | OBJECT,DUAL |
MJD-OBS | 59306.33253935 |
HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
HIERARCH ESO OBS TARG NAME | AlphaCenB_2021_04_01 |
HIERARCH ESO INS SOBJ NAME | StarS1 |
RA | 219.860435 |
DEC | -60.8305 |
HIERARCH ESO INS SPEC RES | MEDIUM |
HIERARCH ESO INS POLA MODE | SPLIT |
HIERARCH ESO ISS CONF NTEL | 4 |
HIERARCH ESO ISS CONF STATION1 | U1 |
HIERARCH ESO ISS CONF STATION2 | U2 |
HIERARCH ESO ISS CONF STATION3 | U3 |
HIERARCH ESO ISS CONF STATION4 | U4 |
EXPTIME | 342.0 |
HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
HIERARCH ESO DET2 NDIT | 32 |
HIERARCH ESO ISS PBL12 START | 44.584 |
HIERARCH ESO ISS PBL12 END | 44.29 |
HIERARCH ESO ISS PBLA12 START | 43.2 |
HIERARCH ESO ISS PBLA12 END | 44.1 |
HIERARCH ESO ISS PBL13 START | 82.044 |
HIERARCH ESO ISS PBL13 END | 81.454 |
HIERARCH ESO ISS PBLA13 START | 51.1 |
HIERARCH ESO ISS PBLA13 END | 52.0 |
HIERARCH ESO ISS PBL14 START | 116.784 |
HIERARCH ESO ISS PBL14 END | 116.079 |
HIERARCH ESO ISS PBLA14 START | 81.758 |
HIERARCH ESO ISS PBLA14 END | 82.967 |
HIERARCH ESO ISS PBL23 START | 38.361 |
HIERARCH ESO ISS PBL23 END | 38.077 |
HIERARCH ESO ISS PBLA23 START | 60.2 |
HIERARCH ESO ISS PBLA23 END | 61.2 |
HIERARCH ESO ISS PBL24 START | 86.478 |
HIERARCH ESO ISS PBL24 END | 86.199 |
HIERARCH ESO ISS PBLA24 START | 100.483 |
HIERARCH ESO ISS PBLA24 END | 101.775 |
HIERARCH ESO ISS PBL34 START | 62.359 |
HIERARCH ESO ISS PBL34 END | 62.394 |
HIERARCH ESO ISS PBLA34 START | 123.919 |
HIERARCH ESO ISS PBLA34 END | 125.153 |
HIERARCH ESO ISS AMBI TAU0 START | 0.002676 |
HIERARCH ESO ISS AMBI TAU0 END | 0.002612 |
HIERARCH ESO ISS AMBI TEMP | 11.91 |
HIERARCH ESO ISS AMBI FWHM START | 1.0 |
HIERARCH ESO ISS AMBI FWHM END | 1.04 |
HIERARCH ESO FT ROBJ NAME | AlphaCenB_2021_04_01 |
HIERARCH ESO FT ROBJ ALPHA | 143925.279 |
HIERARCH ESO FT ROBJ DELTA | -604949.817 |