Exposure
ID
GRAVI.2023-07-23T04:46:43.099_1
Header ID
GRAVI.2023-07-23T04:46:43.099
Date updated
2023-07-23 05:00:23 UTC+0000
Release date
2023-07-23 04:46:43 UTC+0000
UTC Start
2023-07-23 04:46:43.099
UTC End
2023-07-23 04:50:43.099
MJD Start
60148.19910994
MJD End
60148.201887717776
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0038015
Ambient temperature (°C)
15.89
Seeing (arcsec)
0.72
Observation
ID
56390
Category
calibrator
Program ID
109.22XY.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART II
Program Type
Normal
PI / COI
GALLENNE/ PIETRZYNSKI/ GRACZYK/ PILECKI/ GIEREN/ KERVELLA/ MÉRAND
Target
ID
41787
Name
HD164856
RA
270.924887
DEC
-12.77078
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 77.7250 77.0520 127.7000 128.3000
A0-J2 111.5970 110.4140 100.7000 101.0000
A0-K0 116.0110 115.0350 76.7780 76.9010
G1-J2 55.1100 54.8040 60.9000 61.0000
G1-K0 90.1580 90.0740 34.7770 34.9360
J2-K0 47.3580 47.3730 3.9640 4.4440
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.22XY.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60148.19910994
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD164856
HIERARCH ESO INS SOBJ NAME HD164856
RA 270.924887
DEC -12.77078
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 77.725
HIERARCH ESO ISS PBL12 END 77.052
HIERARCH ESO ISS PBLA12 START 127.7
HIERARCH ESO ISS PBLA12 END 128.3
HIERARCH ESO ISS PBL13 START 111.597
HIERARCH ESO ISS PBL13 END 110.414
HIERARCH ESO ISS PBLA13 START 100.7
HIERARCH ESO ISS PBLA13 END 101.0
HIERARCH ESO ISS PBL14 START 116.011
HIERARCH ESO ISS PBL14 END 115.035
HIERARCH ESO ISS PBLA14 START 76.778
HIERARCH ESO ISS PBLA14 END 76.901
HIERARCH ESO ISS PBL23 START 55.11
HIERARCH ESO ISS PBL23 END 54.804
HIERARCH ESO ISS PBLA23 START 60.9
HIERARCH ESO ISS PBLA23 END 61.0
HIERARCH ESO ISS PBL24 START 90.158
HIERARCH ESO ISS PBL24 END 90.074
HIERARCH ESO ISS PBLA24 START 34.777
HIERARCH ESO ISS PBLA24 END 34.936
HIERARCH ESO ISS PBL34 START 47.358
HIERARCH ESO ISS PBL34 END 47.373
HIERARCH ESO ISS PBLA34 START 3.964
HIERARCH ESO ISS PBLA34 END 4.444
HIERARCH ESO ISS AMBI TAU0 START 0.004346
HIERARCH ESO ISS AMBI TAU0 END 0.003257
HIERARCH ESO ISS AMBI TEMP 15.89
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.76