Exposure
ID
GRAVI.2025-08-25T08:56:37.152_1
Header ID
GRAVI.2025-08-25T08:56:37.152
Date updated
2025-08-25 09:11:04 UTC+0000
Release date
2026-08-25 09:11:03 UTC+0000
UTC Start
2025-08-25 08:56:37.152
UTC End
2025-08-25 09:03:17.152
MJD Start
60912.37265222
MJD End
60912.37728184963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.002077
Ambient temperature (°C)
8.4
Seeing (arcsec)
1.69
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 33.8150 34.1260 121.2000 122.5000
A0-J2 126.4960 126.7430 64.3000 66.0000
A0-J6 138.4520 138.1880 14.2290 15.4400
B5-J2 111.6640 111.5920 49.6000 51.2000
B5-J6 151.7960 151.7360 1.9270 3.0250
J2-J6 112.6620 113.5790 314.7890 315.9440
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 60912.37265222
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 33.815
HIERARCH ESO ISS PBL12 END 34.126
HIERARCH ESO ISS PBLA12 START 121.2
HIERARCH ESO ISS PBLA12 END 122.5
HIERARCH ESO ISS PBL13 START 126.496
HIERARCH ESO ISS PBL13 END 126.743
HIERARCH ESO ISS PBLA13 START 64.3
HIERARCH ESO ISS PBLA13 END 66.0
HIERARCH ESO ISS PBL14 START 138.452
HIERARCH ESO ISS PBL14 END 138.188
HIERARCH ESO ISS PBLA14 START 14.229
HIERARCH ESO ISS PBLA14 END 15.44
HIERARCH ESO ISS PBL23 START 111.664
HIERARCH ESO ISS PBL23 END 111.592
HIERARCH ESO ISS PBLA23 START 49.6
HIERARCH ESO ISS PBLA23 END 51.2
HIERARCH ESO ISS PBL24 START 151.796
HIERARCH ESO ISS PBL24 END 151.736
HIERARCH ESO ISS PBLA24 START 1.927
HIERARCH ESO ISS PBLA24 END 3.025
HIERARCH ESO ISS PBL34 START 112.662
HIERARCH ESO ISS PBL34 END 113.579
HIERARCH ESO ISS PBLA34 START 314.789
HIERARCH ESO ISS PBLA34 END 315.944
HIERARCH ESO ISS AMBI TAU0 START 0.002195
HIERARCH ESO ISS AMBI TAU0 END 0.001959
HIERARCH ESO ISS AMBI TEMP 8.4
HIERARCH ESO ISS AMBI FWHM START 1.37
HIERARCH ESO ISS AMBI FWHM END 2.01