Exposure
ID
GRAVI.2023-05-21T02:03:22.056_1
Header ID
GRAVI.2023-05-21T02:03:22.056
Date updated
2023-05-21 02:21:31 UTC+0000
Release date
2024-05-21 02:21:30 UTC+0000
UTC Start
2023-05-21 02:03:22.056
UTC End
2023-05-21 02:10:02.056
MJD Start
60085.08567194
MJD End
60085.0903015696
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.002014
Ambient temperature (°C)
10.0
Seeing (arcsec)
1.055
Observation
ID
55504
Category
science
Program ID
106.217D.005
Program Title
HIGH PRECISION GRAVITY ASTROMETRY OF THREE STELLAR CONJUNCTIONS OF ALPHA CENTAURI A & B
Program Type
Monitoring
PI / COI
KERVELLA/ MÉRAND/ LACOUR/ FORVEILLE/ ARENOU/ THEVENIN/ BRANDNER/ STRAUBMEIER/ GARCIA/ WOILLEZ/ EISENHAUER/ PAUMARD/ PERRIN/ ROUSSELET-PERRAUT
Target
ID
41110
Name
StarS2
RA
219.846448
DEC
-60.83182
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-SPLIT
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 81.9260 82.4840 93.5000 95.0000
A0-J2 126.4430 126.8100 73.4000 74.9000
A0-K0 127.9260 127.8690 56.2480 57.7560
G1-J2 57.0300 56.9050 43.7000 45.1000
G1-K0 80.0130 79.8140 17.9020 19.0010
J2-K0 37.9010 38.0730 337.0340 337.9330
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 106.217D.005
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60085.08567194
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME AlphaCenA_2023_05_20
HIERARCH ESO INS SOBJ NAME StarS2
RA 219.846448
DEC -60.83182
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 81.926
HIERARCH ESO ISS PBL12 END 82.484
HIERARCH ESO ISS PBLA12 START 93.5
HIERARCH ESO ISS PBLA12 END 95.0
HIERARCH ESO ISS PBL13 START 126.443
HIERARCH ESO ISS PBL13 END 126.81
HIERARCH ESO ISS PBLA13 START 73.4
HIERARCH ESO ISS PBLA13 END 74.9
HIERARCH ESO ISS PBL14 START 127.926
HIERARCH ESO ISS PBL14 END 127.869
HIERARCH ESO ISS PBLA14 START 56.248
HIERARCH ESO ISS PBLA14 END 57.756
HIERARCH ESO ISS PBL23 START 57.03
HIERARCH ESO ISS PBL23 END 56.905
HIERARCH ESO ISS PBLA23 START 43.7
HIERARCH ESO ISS PBLA23 END 45.1
HIERARCH ESO ISS PBL24 START 80.013
HIERARCH ESO ISS PBL24 END 79.814
HIERARCH ESO ISS PBLA24 START 17.902
HIERARCH ESO ISS PBLA24 END 19.001
HIERARCH ESO ISS PBL34 START 37.901
HIERARCH ESO ISS PBL34 END 38.073
HIERARCH ESO ISS PBLA34 START 337.034
HIERARCH ESO ISS PBLA34 END 337.933
HIERARCH ESO ISS AMBI TAU0 START 0.002345
HIERARCH ESO ISS AMBI TAU0 END 0.001683
HIERARCH ESO ISS AMBI TEMP 10.0
HIERARCH ESO ISS AMBI FWHM START 0.95
HIERARCH ESO ISS AMBI FWHM END 1.16
HIERARCH ESO FT ROBJ NAME AlphaCenA_2023_05_20
HIERARCH ESO FT ROBJ ALPHA 143924.156
HIERARCH ESO FT ROBJ DELTA -604955.216