Exposure
ID
GRAVI.2025-12-13T05:45:06.547_1
Header ID
GRAVI.2025-12-13T05:45:06.547
Date updated
2025-12-13 06:00:43 UTC+0000
Release date
2026-12-13 06:00:43 UTC+0000
UTC Start
2025-12-13 05:45:06.547
UTC End
2025-12-13 05:51:46.547
MJD Start
61022.23965911
MJD End
61022.244288739625
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.002303
Ambient temperature (°C)
10.35
Seeing (arcsec)
1.145
Observation
ID
72258
Category
science
Program ID
116.28SD.002
Program Title
CALIBRATING ASTEROSEISMOLOGY SCALING RELATIONS BY VLTI OBSERVATION ON GAIA BINARIES
Program Type
Normal
PI / COI
LU / KRAUS / BECK
Target
ID
53664
Name
HD_44939
RA
94.799184
DEC
-67.59817
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 86.8980 87.1620 112.5000 114.0000
A0-J2 129.2260 129.2360 95.1000 96.7000
A0-K0 124.1720 123.8110 78.8090 80.3840
G1-J2 53.1610 52.9060 65.7000 67.2000
G1-K0 70.8350 70.4460 35.9070 37.0870
J2-K0 36.1650 36.2340 348.9890 350.0100
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 116.28SD.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 61022.23965911
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 44939
HIERARCH ESO INS SOBJ NAME HD_44939
RA 94.799184
DEC -67.59817
HIERARCH ESO INS SPEC RES HIGH
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 86.898
HIERARCH ESO ISS PBL12 END 87.162
HIERARCH ESO ISS PBLA12 START 112.5
HIERARCH ESO ISS PBLA12 END 114.0
HIERARCH ESO ISS PBL13 START 129.226
HIERARCH ESO ISS PBL13 END 129.236
HIERARCH ESO ISS PBLA13 START 95.1
HIERARCH ESO ISS PBLA13 END 96.7
HIERARCH ESO ISS PBL14 START 124.172
HIERARCH ESO ISS PBL14 END 123.811
HIERARCH ESO ISS PBLA14 START 78.809
HIERARCH ESO ISS PBLA14 END 80.384
HIERARCH ESO ISS PBL23 START 53.161
HIERARCH ESO ISS PBL23 END 52.906
HIERARCH ESO ISS PBLA23 START 65.7
HIERARCH ESO ISS PBLA23 END 67.2
HIERARCH ESO ISS PBL24 START 70.835
HIERARCH ESO ISS PBL24 END 70.446
HIERARCH ESO ISS PBLA24 START 35.907
HIERARCH ESO ISS PBLA24 END 37.087
HIERARCH ESO ISS PBL34 START 36.165
HIERARCH ESO ISS PBL34 END 36.234
HIERARCH ESO ISS PBLA34 START 348.989
HIERARCH ESO ISS PBLA34 END 350.01
HIERARCH ESO ISS AMBI TAU0 START 0.002382
HIERARCH ESO ISS AMBI TAU0 END 0.002224
HIERARCH ESO ISS AMBI TEMP 10.35
HIERARCH ESO ISS AMBI FWHM START 1.08
HIERARCH ESO ISS AMBI FWHM END 1.21