Exposure
ID
GRAVI.2023-05-21T04:24:04.380_2
Header ID
GRAVI.2023-05-21T04:24:04.380
Date updated
2023-05-21 04:40:43 UTC+0000
Release date
2024-05-21 04:40:43 UTC+0000
UTC Start
2023-05-21 04:24:04.380
UTC End
2023-05-21 04:30:44.380
MJD Start
60085.18338403
MJD End
60085.1880136596
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.002333
Ambient temperature (°C)
9.36
Seeing (arcsec)
0.99
Observation
ID
55511
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
41116
Name
AlphaCenB_2023_05_27
RA
219.850883333333
DEC
-60.8298502777778
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.3770 89.5460 122.9000 124.4000
A0-J2 128.7470 128.5730 104.4000 106.0000
A0-K0 121.8990 121.3110 86.3510 87.8620
G1-J2 52.3470 51.9830 71.6000 73.0000
G1-K0 73.1540 72.6440 39.6160 40.6660
J2-K0 39.9590 39.9860 355.6550 356.5950
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 60085.18338403
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 89.377
HIERARCH ESO ISS PBL12 END 89.546
HIERARCH ESO ISS PBLA12 START 122.9
HIERARCH ESO ISS PBLA12 END 124.4
HIERARCH ESO ISS PBL13 START 128.747
HIERARCH ESO ISS PBL13 END 128.573
HIERARCH ESO ISS PBLA13 START 104.4
HIERARCH ESO ISS PBLA13 END 106.0
HIERARCH ESO ISS PBL14 START 121.899
HIERARCH ESO ISS PBL14 END 121.311
HIERARCH ESO ISS PBLA14 START 86.351
HIERARCH ESO ISS PBLA14 END 87.862
HIERARCH ESO ISS PBL23 START 52.347
HIERARCH ESO ISS PBL23 END 51.983
HIERARCH ESO ISS PBLA23 START 71.6
HIERARCH ESO ISS PBLA23 END 73.0
HIERARCH ESO ISS PBL24 START 73.154
HIERARCH ESO ISS PBL24 END 72.644
HIERARCH ESO ISS PBLA24 START 39.616
HIERARCH ESO ISS PBLA24 END 40.666
HIERARCH ESO ISS PBL34 START 39.959
HIERARCH ESO ISS PBL34 END 39.986
HIERARCH ESO ISS PBLA34 START 355.655
HIERARCH ESO ISS PBLA34 END 356.595
HIERARCH ESO ISS AMBI TAU0 START 0.002524
HIERARCH ESO ISS AMBI TAU0 END 0.002142
HIERARCH ESO ISS AMBI TEMP 9.36
HIERARCH ESO ISS AMBI FWHM START 0.92
HIERARCH ESO ISS AMBI FWHM END 1.06
HIERARCH ESO FT ROBJ NAME AlphaCenB_2023_05_27
HIERARCH ESO FT ROBJ ALPHA 143924.212
HIERARCH ESO FT ROBJ DELTA -604947.461