Exposure
ID
GRAVI.2025-12-13T04:13:06.313_1
Header ID
GRAVI.2025-12-13T04:13:06.313
Date updated
2025-12-13 04:26:51 UTC+0000
Release date
2026-12-13 04:26:51 UTC+0000
UTC Start
2025-12-13 04:13:06.313
UTC End
2025-12-13 04:19:46.313
MJD Start
61022.17576751
MJD End
61022.18039713963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.002256
Ambient temperature (°C)
9.92
Seeing (arcsec)
1.22
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 82.1780 82.6100 91.9000 93.4000
A0-J2 127.5090 127.7350 73.6000 75.3000
A0-K0 127.3060 127.1700 58.0230 59.5910
G1-J2 55.7320 55.5870 46.2000 47.6000
G1-K0 74.6990 74.4890 20.2540 21.4350
J2-K0 34.6070 34.7680 335.5030 336.5140
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 61022.17576751
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 82.178
HIERARCH ESO ISS PBL12 END 82.61
HIERARCH ESO ISS PBLA12 START 91.9
HIERARCH ESO ISS PBLA12 END 93.4
HIERARCH ESO ISS PBL13 START 127.509
HIERARCH ESO ISS PBL13 END 127.735
HIERARCH ESO ISS PBLA13 START 73.6
HIERARCH ESO ISS PBLA13 END 75.3
HIERARCH ESO ISS PBL14 START 127.306
HIERARCH ESO ISS PBL14 END 127.17
HIERARCH ESO ISS PBLA14 START 58.023
HIERARCH ESO ISS PBLA14 END 59.591
HIERARCH ESO ISS PBL23 START 55.732
HIERARCH ESO ISS PBL23 END 55.587
HIERARCH ESO ISS PBLA23 START 46.2
HIERARCH ESO ISS PBLA23 END 47.6
HIERARCH ESO ISS PBL24 START 74.699
HIERARCH ESO ISS PBL24 END 74.489
HIERARCH ESO ISS PBLA24 START 20.254
HIERARCH ESO ISS PBLA24 END 21.435
HIERARCH ESO ISS PBL34 START 34.607
HIERARCH ESO ISS PBL34 END 34.768
HIERARCH ESO ISS PBLA34 START 335.503
HIERARCH ESO ISS PBLA34 END 336.514
HIERARCH ESO ISS AMBI TAU0 START 0.002182
HIERARCH ESO ISS AMBI TAU0 END 0.00233
HIERARCH ESO ISS AMBI TEMP 9.92
HIERARCH ESO ISS AMBI FWHM START 1.4
HIERARCH ESO ISS AMBI FWHM END 1.04