Exposure
ID
GRAVI.2023-08-23T02:44:13.065_1
Header ID
GRAVI.2023-08-23T02:44:13.065
Date updated
2023-08-23 02:55:46 UTC+0000
Release date
2023-08-23 02:44:13 UTC+0000
UTC Start
2023-08-23 02:44:13.065
UTC End
2023-08-23 02:48:13.065
MJD Start
60179.1140401
MJD End
60179.11681787778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004649
Ambient temperature (°C)
14.16
Seeing (arcsec)
0.72
Observation
ID
56656
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
41978
Name
HD164856
RA
270.924885
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 77.8120 77.1410 127.6000 128.2000
A0-J2 111.7500 110.5720 100.6000 101.0000
A0-K0 116.1370 115.1660 76.7620 76.8860
G1-J2 55.1490 54.8450 60.9000 60.9000
G1-K0 90.1690 90.0850 34.7570 34.9170
J2-K0 47.3560 47.3710 3.9020 4.3820
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 60179.1140401
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD164856
HIERARCH ESO INS SOBJ NAME HD164856
RA 270.924885
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 77.812
HIERARCH ESO ISS PBL12 END 77.141
HIERARCH ESO ISS PBLA12 START 127.6
HIERARCH ESO ISS PBLA12 END 128.2
HIERARCH ESO ISS PBL13 START 111.75
HIERARCH ESO ISS PBL13 END 110.572
HIERARCH ESO ISS PBLA13 START 100.6
HIERARCH ESO ISS PBLA13 END 101.0
HIERARCH ESO ISS PBL14 START 116.137
HIERARCH ESO ISS PBL14 END 115.166
HIERARCH ESO ISS PBLA14 START 76.762
HIERARCH ESO ISS PBLA14 END 76.886
HIERARCH ESO ISS PBL23 START 55.149
HIERARCH ESO ISS PBL23 END 54.845
HIERARCH ESO ISS PBLA23 START 60.9
HIERARCH ESO ISS PBLA23 END 60.9
HIERARCH ESO ISS PBL24 START 90.169
HIERARCH ESO ISS PBL24 END 90.085
HIERARCH ESO ISS PBLA24 START 34.757
HIERARCH ESO ISS PBLA24 END 34.917
HIERARCH ESO ISS PBL34 START 47.356
HIERARCH ESO ISS PBL34 END 47.371
HIERARCH ESO ISS PBLA34 START 3.902
HIERARCH ESO ISS PBLA34 END 4.382
HIERARCH ESO ISS AMBI TAU0 START 0.003966
HIERARCH ESO ISS AMBI TAU0 END 0.005332
HIERARCH ESO ISS AMBI TEMP 14.16
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.67