Exposure
ID
GRAVI.2025-08-25T08:49:25.134_1
Header ID
GRAVI.2025-08-25T08:49:25.134
Date updated
2025-08-25 09:05:45 UTC+0000
Release date
2026-08-25 09:05:45 UTC+0000
UTC Start
2025-08-25 08:49:25.134
UTC End
2025-08-25 08:56:05.134
MJD Start
60912.36765201
MJD End
60912.372281639626
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.001872
Ambient temperature (°C)
8.37
Seeing (arcsec)
1.6
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 33.4830 33.8010 119.8000 121.1000
A0-J2 126.2310 126.4850 62.5000 64.2000
A0-J6 138.7040 138.4630 12.9650 14.1760
B5-J2 111.7310 111.6670 47.9000 49.5000
B5-J6 151.8300 151.7980 0.7820 1.8800
J2-J6 111.6800 112.6220 313.5810 314.7390
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 60912.36765201
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 33.483
HIERARCH ESO ISS PBL12 END 33.801
HIERARCH ESO ISS PBLA12 START 119.8
HIERARCH ESO ISS PBLA12 END 121.1
HIERARCH ESO ISS PBL13 START 126.231
HIERARCH ESO ISS PBL13 END 126.485
HIERARCH ESO ISS PBLA13 START 62.5
HIERARCH ESO ISS PBLA13 END 64.2
HIERARCH ESO ISS PBL14 START 138.704
HIERARCH ESO ISS PBL14 END 138.463
HIERARCH ESO ISS PBLA14 START 12.965
HIERARCH ESO ISS PBLA14 END 14.176
HIERARCH ESO ISS PBL23 START 111.731
HIERARCH ESO ISS PBL23 END 111.667
HIERARCH ESO ISS PBLA23 START 47.9
HIERARCH ESO ISS PBLA23 END 49.5
HIERARCH ESO ISS PBL24 START 151.83
HIERARCH ESO ISS PBL24 END 151.798
HIERARCH ESO ISS PBLA24 START 0.782
HIERARCH ESO ISS PBLA24 END 1.88
HIERARCH ESO ISS PBL34 START 111.68
HIERARCH ESO ISS PBL34 END 112.622
HIERARCH ESO ISS PBLA34 START 313.581
HIERARCH ESO ISS PBLA34 END 314.739
HIERARCH ESO ISS AMBI TAU0 START 0.001549
HIERARCH ESO ISS AMBI TAU0 END 0.002195
HIERARCH ESO ISS AMBI TEMP 8.37
HIERARCH ESO ISS AMBI FWHM START 1.91
HIERARCH ESO ISS AMBI FWHM END 1.29