Exposure
ID
GRAVI.2025-08-23T08:37:45.364_1
Header ID
GRAVI.2025-08-23T08:37:45.364
Date updated
2025-08-23 08:55:34 UTC+0000
Release date
2026-08-23 08:55:34 UTC+0000
UTC Start
2025-08-23 08:37:45.364
UTC End
2025-08-23 08:44:25.364
MJD Start
60910.35955282
MJD End
60910.36418244963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0036315
Ambient temperature (°C)
3.16
Seeing (arcsec)
1.19
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 32.5500 32.8880 116.1000 117.4000
A0-J2 125.4780 125.7510 57.8000 59.5000
A0-J6 139.2670 139.0880 9.5490 10.7640
B5-J2 111.8670 111.8250 43.4000 45.0000
B5-J6 151.7790 151.8230 357.6880 358.7880
J2-J6 108.8930 109.9080 310.3030 311.4730
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 60910.35955282
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 32.55
HIERARCH ESO ISS PBL12 END 32.888
HIERARCH ESO ISS PBLA12 START 116.1
HIERARCH ESO ISS PBLA12 END 117.4
HIERARCH ESO ISS PBL13 START 125.478
HIERARCH ESO ISS PBL13 END 125.751
HIERARCH ESO ISS PBLA13 START 57.8
HIERARCH ESO ISS PBLA13 END 59.5
HIERARCH ESO ISS PBL14 START 139.267
HIERARCH ESO ISS PBL14 END 139.088
HIERARCH ESO ISS PBLA14 START 9.549
HIERARCH ESO ISS PBLA14 END 10.764
HIERARCH ESO ISS PBL23 START 111.867
HIERARCH ESO ISS PBL23 END 111.825
HIERARCH ESO ISS PBLA23 START 43.4
HIERARCH ESO ISS PBLA23 END 45.0
HIERARCH ESO ISS PBL24 START 151.779
HIERARCH ESO ISS PBL24 END 151.823
HIERARCH ESO ISS PBLA24 START 357.688
HIERARCH ESO ISS PBLA24 END 358.788
HIERARCH ESO ISS PBL34 START 108.893
HIERARCH ESO ISS PBL34 END 109.908
HIERARCH ESO ISS PBLA34 START 310.303
HIERARCH ESO ISS PBLA34 END 311.473
HIERARCH ESO ISS AMBI TAU0 START 0.003601
HIERARCH ESO ISS AMBI TAU0 END 0.003662
HIERARCH ESO ISS AMBI TEMP 3.16
HIERARCH ESO ISS AMBI FWHM START 1.16
HIERARCH ESO ISS AMBI FWHM END 1.22