Exposure
ID
GRAVI.2025-08-23T08:59:45.420_1
Header ID
GRAVI.2025-08-23T08:59:45.420
Date updated
2025-08-23 09:15:33 UTC+0000
Release date
2026-08-23 09:15:33 UTC+0000
UTC Start
2025-08-23 08:59:45.420
UTC End
2025-08-23 09:06:25.420
MJD Start
60910.37483125
MJD End
60910.37946087963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.003097
Ambient temperature (°C)
3.15
Seeing (arcsec)
1.2
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 33.6010 33.9170 120.3000 121.6000
A0-J2 126.3240 126.5770 63.2000 64.8000
A0-J6 138.6210 138.3720 13.4060 14.6200
B5-J2 111.7090 111.6420 48.5000 50.1000
B5-J6 151.8250 151.7840 1.1820 2.2820
J2-J6 112.0300 112.9650 314.0050 315.1640
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 60910.37483125
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 33.601
HIERARCH ESO ISS PBL12 END 33.917
HIERARCH ESO ISS PBLA12 START 120.3
HIERARCH ESO ISS PBLA12 END 121.6
HIERARCH ESO ISS PBL13 START 126.324
HIERARCH ESO ISS PBL13 END 126.577
HIERARCH ESO ISS PBLA13 START 63.2
HIERARCH ESO ISS PBLA13 END 64.8
HIERARCH ESO ISS PBL14 START 138.621
HIERARCH ESO ISS PBL14 END 138.372
HIERARCH ESO ISS PBLA14 START 13.406
HIERARCH ESO ISS PBLA14 END 14.62
HIERARCH ESO ISS PBL23 START 111.709
HIERARCH ESO ISS PBL23 END 111.642
HIERARCH ESO ISS PBLA23 START 48.5
HIERARCH ESO ISS PBLA23 END 50.1
HIERARCH ESO ISS PBL24 START 151.825
HIERARCH ESO ISS PBL24 END 151.784
HIERARCH ESO ISS PBLA24 START 1.182
HIERARCH ESO ISS PBLA24 END 2.282
HIERARCH ESO ISS PBL34 START 112.03
HIERARCH ESO ISS PBL34 END 112.965
HIERARCH ESO ISS PBLA34 START 314.005
HIERARCH ESO ISS PBLA34 END 315.164
HIERARCH ESO ISS AMBI TAU0 START 0.003062
HIERARCH ESO ISS AMBI TAU0 END 0.003132
HIERARCH ESO ISS AMBI TEMP 3.15
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 1.26