Exposure
ID
GRAVI.2024-04-01T09:36:40.373_1
Header ID
GRAVI.2024-04-01T09:36:40.373
Date updated
2024-04-01 09:50:32 UTC+0000
Release date
2024-04-01 09:36:40 UTC+0000
UTC Start
2024-04-01 09:36:40.373
UTC End
2024-04-01 09:40:40.373
MJD Start
60401.40046728
MJD End
60401.4032450578
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.020306
Ambient temperature (°C)
15.73
Seeing (arcsec)
0.34
Observation
ID
58908
Category
calibrator
Program ID
113.26BP.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART IV
Program Type
Normal
PI / COI
GALLENNE / PIETRZYNSKI / KERVELLA / MÉRAND / GIEREN / GRACZYK
Target
ID
43610
Name
HD164856
RA
270.924876
DEC
-12.7708
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 90.4860 90.5070 113.8000 114.1000
A0-J2 128.4070 128.6500 91.2000 91.4000
A0-K0 125.8390 126.2160 69.5010 69.7990
G1-J2 56.8450 57.0220 53.4000 53.7000
G1-K0 87.9340 88.0870 23.5230 23.9840
J2-K0 47.8640 47.8300 347.3140 347.7350
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26BP.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60401.40046728
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD164856
HIERARCH ESO INS SOBJ NAME HD164856
RA 270.924876
DEC -12.7708
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 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 90.486
HIERARCH ESO ISS PBL12 END 90.507
HIERARCH ESO ISS PBLA12 START 113.8
HIERARCH ESO ISS PBLA12 END 114.1
HIERARCH ESO ISS PBL13 START 128.407
HIERARCH ESO ISS PBL13 END 128.65
HIERARCH ESO ISS PBLA13 START 91.2
HIERARCH ESO ISS PBLA13 END 91.4
HIERARCH ESO ISS PBL14 START 125.839
HIERARCH ESO ISS PBL14 END 126.216
HIERARCH ESO ISS PBLA14 START 69.501
HIERARCH ESO ISS PBLA14 END 69.799
HIERARCH ESO ISS PBL23 START 56.845
HIERARCH ESO ISS PBL23 END 57.022
HIERARCH ESO ISS PBLA23 START 53.4
HIERARCH ESO ISS PBLA23 END 53.7
HIERARCH ESO ISS PBL24 START 87.934
HIERARCH ESO ISS PBL24 END 88.087
HIERARCH ESO ISS PBLA24 START 23.523
HIERARCH ESO ISS PBLA24 END 23.984
HIERARCH ESO ISS PBL34 START 47.864
HIERARCH ESO ISS PBL34 END 47.83
HIERARCH ESO ISS PBLA34 START 347.314
HIERARCH ESO ISS PBLA34 END 347.735
HIERARCH ESO ISS AMBI TAU0 START 0.020306
HIERARCH ESO ISS AMBI TAU0 END 0.020306
HIERARCH ESO ISS AMBI TEMP 15.73
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.34