Exposure
ID
GRAVI.2024-03-28T01:25:17.815_1
Header ID
GRAVI.2024-03-28T01:25:17.815
Date updated
2024-03-28 01:40:26 UTC+0000
Release date
2025-03-28 01:40:26 UTC+0000
UTC Start
2024-03-28 01:25:17.815
UTC End
2024-03-28 01:31:57.815
MJD Start
60397.05923397
MJD End
60397.0638635996
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.007
Ambient temperature (°C)
13.14
Seeing (arcsec)
1.025
Observation
ID
58851
Category
science
Program ID
113.26K8.004
Program Title
DO TERTIARY COMPANIONS AFFECT THE FORMATION AND EVOLUTION OF MASSIVE OVERCONTACT BINARY SYSTEMS?
Program Type
Normal
PI / COI
ABDUL-MASIH / FROST / DE MINK / TOONEN / MAHY
Target
ID
43571
Name
BFCen
RA
174.075151
DEC
-61.46688
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 50.5050 50.4520 7.8000 8.9000
U1-U3 94.4280 94.2920 13.2000 14.4000
U1-U4 129.9290 129.8540 34.4810 35.9550
U2-U3 44.4140 44.3430 19.4000 20.7000
U2-U4 87.8140 87.9950 49.4740 51.0930
U3-U4 54.1450 54.5710 73.7240 75.3680
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26K8.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60397.05923397
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME V BF Cen
HIERARCH ESO INS SOBJ NAME BFCen
RA 174.075151
DEC -61.46688
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 50.505
HIERARCH ESO ISS PBL12 END 50.452
HIERARCH ESO ISS PBLA12 START 7.8
HIERARCH ESO ISS PBLA12 END 8.9
HIERARCH ESO ISS PBL13 START 94.428
HIERARCH ESO ISS PBL13 END 94.292
HIERARCH ESO ISS PBLA13 START 13.2
HIERARCH ESO ISS PBLA13 END 14.4
HIERARCH ESO ISS PBL14 START 129.929
HIERARCH ESO ISS PBL14 END 129.854
HIERARCH ESO ISS PBLA14 START 34.481
HIERARCH ESO ISS PBLA14 END 35.955
HIERARCH ESO ISS PBL23 START 44.414
HIERARCH ESO ISS PBL23 END 44.343
HIERARCH ESO ISS PBLA23 START 19.4
HIERARCH ESO ISS PBLA23 END 20.7
HIERARCH ESO ISS PBL24 START 87.814
HIERARCH ESO ISS PBL24 END 87.995
HIERARCH ESO ISS PBLA24 START 49.474
HIERARCH ESO ISS PBLA24 END 51.093
HIERARCH ESO ISS PBL34 START 54.145
HIERARCH ESO ISS PBL34 END 54.571
HIERARCH ESO ISS PBLA34 START 73.724
HIERARCH ESO ISS PBLA34 END 75.368
HIERARCH ESO ISS AMBI TAU0 START 0.007511
HIERARCH ESO ISS AMBI TAU0 END 0.006489
HIERARCH ESO ISS AMBI TEMP 13.14
HIERARCH ESO ISS AMBI FWHM START 0.92
HIERARCH ESO ISS AMBI FWHM END 1.13