Exposure
ID
GRAVI.2025-03-02T04:37:57.498_1
Header ID
GRAVI.2025-03-02T04:37:57.498
Date updated
2025-03-02 04:50:50 UTC+0000
Release date
2026-03-02 04:50:50 UTC+0000
UTC Start
2025-03-02 04:37:57.498
UTC End
2025-03-02 04:44:37.498
MJD Start
60736.1930266
MJD End
60736.197656229626
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.005088499999999999
Ambient temperature (°C)
15.01
Seeing (arcsec)
0.77
Observation
ID
64924
Category
science
Program ID
115.285N.003
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 / ESCORZA
Target
ID
48353
Name
LS3074
RA
201.744483
DEC
-62.03038
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 74.0350 74.7410 73.3000 75.0000
A0-J2 121.0790 121.5890 52.8000 54.5000
A0-K0 127.5150 127.6060 37.1290 38.7250
G1-J2 57.8220 57.7760 26.2000 27.7000
G1-K0 80.5880 80.5380 4.3230 5.4500
J2-K0 34.5300 34.8010 325.6250 326.5020
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.285N.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60736.1930266
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME LS 3074
HIERARCH ESO INS SOBJ NAME LS3074
RA 201.744483
DEC -62.03038
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
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 74.035
HIERARCH ESO ISS PBL12 END 74.741
HIERARCH ESO ISS PBLA12 START 73.3
HIERARCH ESO ISS PBLA12 END 75.0
HIERARCH ESO ISS PBL13 START 121.079
HIERARCH ESO ISS PBL13 END 121.589
HIERARCH ESO ISS PBLA13 START 52.8
HIERARCH ESO ISS PBLA13 END 54.5
HIERARCH ESO ISS PBL14 START 127.515
HIERARCH ESO ISS PBL14 END 127.606
HIERARCH ESO ISS PBLA14 START 37.129
HIERARCH ESO ISS PBLA14 END 38.725
HIERARCH ESO ISS PBL23 START 57.822
HIERARCH ESO ISS PBL23 END 57.776
HIERARCH ESO ISS PBLA23 START 26.2
HIERARCH ESO ISS PBLA23 END 27.7
HIERARCH ESO ISS PBL24 START 80.588
HIERARCH ESO ISS PBL24 END 80.538
HIERARCH ESO ISS PBLA24 START 4.323
HIERARCH ESO ISS PBLA24 END 5.45
HIERARCH ESO ISS PBL34 START 34.53
HIERARCH ESO ISS PBL34 END 34.801
HIERARCH ESO ISS PBLA34 START 325.625
HIERARCH ESO ISS PBLA34 END 326.502
HIERARCH ESO ISS AMBI TAU0 START 0.00497
HIERARCH ESO ISS AMBI TAU0 END 0.005207
HIERARCH ESO ISS AMBI TEMP 15.01
HIERARCH ESO ISS AMBI FWHM START 0.72
HIERARCH ESO ISS AMBI FWHM END 0.82