Exposure
ID
GRAVI.2023-05-21T04:31:22.400_1
Header ID
GRAVI.2023-05-21T04:31:22.400
Date updated
2023-05-21 04:50:46 UTC+0000
Release date
2024-05-21 04:50:46 UTC+0000
UTC Start
2023-05-21 04:31:22.400
UTC End
2023-05-21 04:38:02.400
MJD Start
60085.1884537
MJD End
60085.1930833296
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0022185
Ambient temperature (°C)
9.41
Seeing (arcsec)
1.035
Observation
ID
55510
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
41115
Name
StarS3
RA
219.846447
DEC
-60.82966
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 89.5540 89.7050 124.5000 125.9000
A0-J2 128.5640 128.3650 106.1000 107.6000
A0-K0 121.2810 120.6640 87.9350 89.4540
G1-J2 51.9640 51.5870 73.1000 74.5000
G1-K0 72.6170 72.0880 40.7150 41.7630
J2-K0 39.9880 40.0080 356.6390 357.5790
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 60085.1884537
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME AlphaCenB_2023_05_27
HIERARCH ESO INS SOBJ NAME StarS3
RA 219.846447
DEC -60.82966
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 89.554
HIERARCH ESO ISS PBL12 END 89.705
HIERARCH ESO ISS PBLA12 START 124.5
HIERARCH ESO ISS PBLA12 END 125.9
HIERARCH ESO ISS PBL13 START 128.564
HIERARCH ESO ISS PBL13 END 128.365
HIERARCH ESO ISS PBLA13 START 106.1
HIERARCH ESO ISS PBLA13 END 107.6
HIERARCH ESO ISS PBL14 START 121.281
HIERARCH ESO ISS PBL14 END 120.664
HIERARCH ESO ISS PBLA14 START 87.935
HIERARCH ESO ISS PBLA14 END 89.454
HIERARCH ESO ISS PBL23 START 51.964
HIERARCH ESO ISS PBL23 END 51.587
HIERARCH ESO ISS PBLA23 START 73.1
HIERARCH ESO ISS PBLA23 END 74.5
HIERARCH ESO ISS PBL24 START 72.617
HIERARCH ESO ISS PBL24 END 72.088
HIERARCH ESO ISS PBLA24 START 40.715
HIERARCH ESO ISS PBLA24 END 41.763
HIERARCH ESO ISS PBL34 START 39.988
HIERARCH ESO ISS PBL34 END 40.008
HIERARCH ESO ISS PBLA34 START 356.639
HIERARCH ESO ISS PBLA34 END 357.579
HIERARCH ESO ISS AMBI TAU0 START 0.002142
HIERARCH ESO ISS AMBI TAU0 END 0.002295
HIERARCH ESO ISS AMBI TEMP 9.41
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 1.01
HIERARCH ESO FT ROBJ NAME AlphaCenB_2023_05_27
HIERARCH ESO FT ROBJ ALPHA 143924.212
HIERARCH ESO FT ROBJ DELTA -604947.461