Exposure
ID
GRAVI.2021-05-23T01:01:28.589_2
Header ID
GRAVI.2021-05-23T01:01:28.589
Date updated
2021-09-29 14:27:19 UTC+0000
Release date
2022-05-23 01:10:36 UTC+0000
UTC Start
2021-05-23 01:01:28.589
UTC End
2021-05-23 01:02:32.589
MJD Start
59357.042692
MJD End
59357.0434327407
Exposure time (s)
64.0
Validation level
1
Tau 0: Coherence time (s)
0.006592
Ambient temperature (°C)
11.31
Seeing (arcsec)
0.42
Observation
ID
47436
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
35576
Name
WDSJ14077-4952B
RA
211.922835416667
DEC
-49.8673693055556
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 54.2300 54.2130 13.6000 13.9000
U1-U3 99.6440 99.6100 19.4000 19.6000
U1-U4 130.1730 130.1810 43.4020 43.7010
U2-U3 46.0040 45.9900 26.1000 26.4000
U2-U4 87.3500 87.4220 61.3520 61.6720
U3-U4 56.4070 56.5230 89.4210 89.7160
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 59357.042692
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD 123227
HIERARCH ESO INS SOBJ NAME WDSJ14077-4952A
RA 211.926027
DEC -49.86689
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 94.0
HIERARCH ESO DET2 SEQ1 DIT 1.0
HIERARCH ESO DET2 NDIT 64
HIERARCH ESO ISS PBL12 START 54.23
HIERARCH ESO ISS PBL12 END 54.213
HIERARCH ESO ISS PBLA12 START 13.6
HIERARCH ESO ISS PBLA12 END 13.9
HIERARCH ESO ISS PBL13 START 99.644
HIERARCH ESO ISS PBL13 END 99.61
HIERARCH ESO ISS PBLA13 START 19.4
HIERARCH ESO ISS PBLA13 END 19.6
HIERARCH ESO ISS PBL14 START 130.173
HIERARCH ESO ISS PBL14 END 130.181
HIERARCH ESO ISS PBLA14 START 43.402
HIERARCH ESO ISS PBLA14 END 43.701
HIERARCH ESO ISS PBL23 START 46.004
HIERARCH ESO ISS PBL23 END 45.99
HIERARCH ESO ISS PBLA23 START 26.1
HIERARCH ESO ISS PBLA23 END 26.4
HIERARCH ESO ISS PBL24 START 87.35
HIERARCH ESO ISS PBL24 END 87.422
HIERARCH ESO ISS PBLA24 START 61.352
HIERARCH ESO ISS PBLA24 END 61.672
HIERARCH ESO ISS PBL34 START 56.407
HIERARCH ESO ISS PBL34 END 56.523
HIERARCH ESO ISS PBLA34 START 89.421
HIERARCH ESO ISS PBLA34 END 89.716
HIERARCH ESO ISS AMBI TAU0 START 0.006479
HIERARCH ESO ISS AMBI TAU0 END 0.006705
HIERARCH ESO ISS AMBI TEMP 11.31
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.43
HIERARCH ESO FT ROBJ NAME WDSJ14077-4952B
HIERARCH ESO FT ROBJ ALPHA 140741.4805
HIERARCH ESO FT ROBJ DELTA -495202.5295