Exposure
ID
GRAVI.2025-12-13T04:43:45.391_1
Header ID
GRAVI.2025-12-13T04:43:45.391
Date updated
2025-12-13 05:00:57 UTC+0000
Release date
2026-12-13 05:00:57 UTC+0000
UTC Start
2025-12-13 04:43:45.391
UTC End
2025-12-13 04:50:25.391
MJD Start
61022.19705314
MJD End
61022.20168276963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.00213
Ambient temperature (°C)
10.27
Seeing (arcsec)
1.29
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 83.9990 84.3770 98.8000 100.4000
A0-J2 128.3990 128.5580 80.8000 82.4000
A0-K0 126.5880 126.3830 64.9500 66.5100
G1-J2 55.0360 54.8570 52.7000 54.1000
G1-K0 73.6710 73.4040 25.4750 26.6510
J2-K0 35.2630 35.3920 339.9820 340.9940
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 61022.19705314
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 83.999
HIERARCH ESO ISS PBL12 END 84.377
HIERARCH ESO ISS PBLA12 START 98.8
HIERARCH ESO ISS PBLA12 END 100.4
HIERARCH ESO ISS PBL13 START 128.399
HIERARCH ESO ISS PBL13 END 128.558
HIERARCH ESO ISS PBLA13 START 80.8
HIERARCH ESO ISS PBLA13 END 82.4
HIERARCH ESO ISS PBL14 START 126.588
HIERARCH ESO ISS PBL14 END 126.383
HIERARCH ESO ISS PBLA14 START 64.95
HIERARCH ESO ISS PBLA14 END 66.51
HIERARCH ESO ISS PBL23 START 55.036
HIERARCH ESO ISS PBL23 END 54.857
HIERARCH ESO ISS PBLA23 START 52.7
HIERARCH ESO ISS PBLA23 END 54.1
HIERARCH ESO ISS PBL24 START 73.671
HIERARCH ESO ISS PBL24 END 73.404
HIERARCH ESO ISS PBLA24 START 25.475
HIERARCH ESO ISS PBLA24 END 26.651
HIERARCH ESO ISS PBL34 START 35.263
HIERARCH ESO ISS PBL34 END 35.392
HIERARCH ESO ISS PBLA34 START 339.982
HIERARCH ESO ISS PBLA34 END 340.994
HIERARCH ESO ISS AMBI TAU0 START 0.00213
HIERARCH ESO ISS AMBI TAU0 END 0.00213
HIERARCH ESO ISS AMBI TEMP 10.27
HIERARCH ESO ISS AMBI FWHM START 1.35
HIERARCH ESO ISS AMBI FWHM END 1.23