Exposure
ID
GRAVI.2025-08-23T09:06:57.438_1
Header ID
GRAVI.2025-08-23T09:06:57.438
Date updated
2025-08-23 09:21:22 UTC+0000
Release date
2026-08-23 09:21:22 UTC+0000
UTC Start
2025-08-23 09:06:57.438
UTC End
2025-08-23 09:13:37.438
MJD Start
60910.37983146
MJD End
60910.38446108963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0034265
Ambient temperature (°C)
3.09
Seeing (arcsec)
1.295
Observation
ID
70087
Category
science
Program ID
115.282L.001
Program Title
CALIBRATING ASTEROSEISMOLOGY SCALING RELATIONS BY VLTI OBSERVATION ON GAIA BINARIES
Program Type
Normal
PI / COI
LU / KRAUS / GARDNER / BECK
Target
ID
52000
Name
HD_28898
RA
66.865838
DEC
-69.75426
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 33.9270 34.2360 121.6000 122.9000
A0-J2 126.5840 126.8290 64.9000 66.6000
A0-J6 138.3640 138.0910 14.6580 15.8720
B5-J2 111.6400 111.5640 50.2000 51.8000
B5-J6 151.7820 151.7120 2.3160 3.4160
J2-J6 112.9940 113.9040 315.2000 316.3570
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.282L.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60910.37983146
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 28898
HIERARCH ESO INS SOBJ NAME HD_28898
RA 66.865838
DEC -69.75426
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 33.927
HIERARCH ESO ISS PBL12 END 34.236
HIERARCH ESO ISS PBLA12 START 121.6
HIERARCH ESO ISS PBLA12 END 122.9
HIERARCH ESO ISS PBL13 START 126.584
HIERARCH ESO ISS PBL13 END 126.829
HIERARCH ESO ISS PBLA13 START 64.9
HIERARCH ESO ISS PBLA13 END 66.6
HIERARCH ESO ISS PBL14 START 138.364
HIERARCH ESO ISS PBL14 END 138.091
HIERARCH ESO ISS PBLA14 START 14.658
HIERARCH ESO ISS PBLA14 END 15.872
HIERARCH ESO ISS PBL23 START 111.64
HIERARCH ESO ISS PBL23 END 111.564
HIERARCH ESO ISS PBLA23 START 50.2
HIERARCH ESO ISS PBLA23 END 51.8
HIERARCH ESO ISS PBL24 START 151.782
HIERARCH ESO ISS PBL24 END 151.712
HIERARCH ESO ISS PBLA24 START 2.316
HIERARCH ESO ISS PBLA24 END 3.416
HIERARCH ESO ISS PBL34 START 112.994
HIERARCH ESO ISS PBL34 END 113.904
HIERARCH ESO ISS PBLA34 START 315.2
HIERARCH ESO ISS PBLA34 END 316.357
HIERARCH ESO ISS AMBI TAU0 START 0.003132
HIERARCH ESO ISS AMBI TAU0 END 0.003721
HIERARCH ESO ISS AMBI TEMP 3.09
HIERARCH ESO ISS AMBI FWHM START 1.26
HIERARCH ESO ISS AMBI FWHM END 1.33