Exposure
ID
GRAVI.2025-08-29T08:37:50.681_1
Header ID
GRAVI.2025-08-29T08:37:50.681
Date updated
2025-08-29 08:55:41 UTC+0000
Release date
2026-08-29 08:55:41 UTC+0000
UTC Start
2025-08-29 08:37:50.681
UTC End
2025-08-29 08:44:30.681
MJD Start
60916.35961436
MJD End
60916.36424398963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.003237
Ambient temperature (°C)
9.69
Seeing (arcsec)
0.89
Observation
ID
70154
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
52053
Name
HD_28898
RA
66.862626
DEC
-69.75426
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 79.6630 80.1060 81.3000 82.9000
A0-J2 126.3840 126.6340 63.6000 65.2000
A0-K0 127.6440 127.5660 48.9100 50.5050
G1-J2 55.9990 55.8930 37.9000 39.4000
G1-K0 73.8800 73.7450 13.6790 14.8910
J2-K0 32.4120 32.6080 328.4530 329.5040
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 60916.35961436
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 28898
HIERARCH ESO INS SOBJ NAME HD_28898
RA 66.862626
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 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 79.663
HIERARCH ESO ISS PBL12 END 80.106
HIERARCH ESO ISS PBLA12 START 81.3
HIERARCH ESO ISS PBLA12 END 82.9
HIERARCH ESO ISS PBL13 START 126.384
HIERARCH ESO ISS PBL13 END 126.634
HIERARCH ESO ISS PBLA13 START 63.6
HIERARCH ESO ISS PBLA13 END 65.2
HIERARCH ESO ISS PBL14 START 127.644
HIERARCH ESO ISS PBL14 END 127.566
HIERARCH ESO ISS PBLA14 START 48.91
HIERARCH ESO ISS PBLA14 END 50.505
HIERARCH ESO ISS PBL23 START 55.999
HIERARCH ESO ISS PBL23 END 55.893
HIERARCH ESO ISS PBLA23 START 37.9
HIERARCH ESO ISS PBLA23 END 39.4
HIERARCH ESO ISS PBL24 START 73.88
HIERARCH ESO ISS PBL24 END 73.745
HIERARCH ESO ISS PBLA24 START 13.679
HIERARCH ESO ISS PBLA24 END 14.891
HIERARCH ESO ISS PBL34 START 32.412
HIERARCH ESO ISS PBL34 END 32.608
HIERARCH ESO ISS PBLA34 START 328.453
HIERARCH ESO ISS PBLA34 END 329.504
HIERARCH ESO ISS AMBI TAU0 START 0.003237
HIERARCH ESO ISS AMBI TAU0 END 0.003237
HIERARCH ESO ISS AMBI TEMP 9.69
HIERARCH ESO ISS AMBI FWHM START 0.89
HIERARCH ESO ISS AMBI FWHM END 0.89