Exposure
ID
GRAVI.2023-01-26T08:35:41.444_1
Header ID
GRAVI.2023-01-26T08:35:41.444
Date updated
2023-01-26 08:45:43 UTC+0000
Release date
2024-01-26 08:45:43 UTC+0000
UTC Start
2023-01-26 08:35:41.444
UTC End
2023-01-26 08:39:41.444
MJD Start
59970.35811857
MJD End
59970.3608963478
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0056675
Ambient temperature (°C)
13.38
Seeing (arcsec)
0.75
Observation
ID
54015
Category
science
Program ID
108.221X.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART I
Program Type
Normal
PI / COI
GALLENNE/ PIETRZYNSKI/ GRACZYK/ PILECKI/ KERVELLA/ MÉRAND/ GIEREN
Target
ID
40127
Name
HD98031
RA
169.147106
DEC
12.46293
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 79.5400 78.7950 110.2000 110.2000
A0-J2 124.3460 123.6890 89.2000 89.0000
A0-J3 128.7690 129.1970 52.2550 52.1760
G1-J2 57.6800 57.7970 59.5000 59.3000
G1-J3 109.7510 110.0870 14.3390 14.7860
J2-J3 80.2790 79.9480 343.7100 344.3080
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.221X.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59970.35811857
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD98031
HIERARCH ESO INS SOBJ NAME HD98031
RA 169.147106
DEC 12.46293
HIERARCH ESO INS SPEC RES MEDIUM
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 J3
EXPTIME 255.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 79.54
HIERARCH ESO ISS PBL12 END 78.795
HIERARCH ESO ISS PBLA12 START 110.2
HIERARCH ESO ISS PBLA12 END 110.2
HIERARCH ESO ISS PBL13 START 124.346
HIERARCH ESO ISS PBL13 END 123.689
HIERARCH ESO ISS PBLA13 START 89.2
HIERARCH ESO ISS PBLA13 END 89.0
HIERARCH ESO ISS PBL14 START 128.769
HIERARCH ESO ISS PBL14 END 129.197
HIERARCH ESO ISS PBLA14 START 52.255
HIERARCH ESO ISS PBLA14 END 52.176
HIERARCH ESO ISS PBL23 START 57.68
HIERARCH ESO ISS PBL23 END 57.797
HIERARCH ESO ISS PBLA23 START 59.5
HIERARCH ESO ISS PBLA23 END 59.3
HIERARCH ESO ISS PBL24 START 109.751
HIERARCH ESO ISS PBL24 END 110.087
HIERARCH ESO ISS PBLA24 START 14.339
HIERARCH ESO ISS PBLA24 END 14.786
HIERARCH ESO ISS PBL34 START 80.279
HIERARCH ESO ISS PBL34 END 79.948
HIERARCH ESO ISS PBLA34 START 343.71
HIERARCH ESO ISS PBLA34 END 344.308
HIERARCH ESO ISS AMBI TAU0 START 0.006011
HIERARCH ESO ISS AMBI TAU0 END 0.005324
HIERARCH ESO ISS AMBI TEMP 13.38
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.8