Exposure
ID
GRAVI.2023-07-18T03:26:04.768_1
Header ID
GRAVI.2023-07-18T03:26:04.768
Date updated
2023-07-18 03:36:29 UTC+0000
Release date
2023-07-18 03:26:04 UTC+0000
UTC Start
2023-07-18 03:26:04.768
UTC End
2023-07-18 03:30:04.768
MJD Start
60143.14311074
MJD End
60143.14588851778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0026639999999999997
Ambient temperature (°C)
12.02
Seeing (arcsec)
0.935
Observation
ID
56268
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
41683
Name
HD164856
RA
270.924888
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 89.1260 88.8580 117.1000 117.4000
A0-J2 128.5310 128.2650 94.0000 94.3000
A0-K0 127.9470 127.8760 72.6700 72.8900
G1-J2 58.1840 58.2120 57.1000 57.4000
G1-K0 89.5730 89.6820 28.5320 28.8890
J2-K0 47.4970 47.4730 352.6460 353.1070
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 60143.14311074
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD164856
HIERARCH ESO INS SOBJ NAME HD164856
RA 270.924888
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 89.126
HIERARCH ESO ISS PBL12 END 88.858
HIERARCH ESO ISS PBLA12 START 117.1
HIERARCH ESO ISS PBLA12 END 117.4
HIERARCH ESO ISS PBL13 START 128.531
HIERARCH ESO ISS PBL13 END 128.265
HIERARCH ESO ISS PBLA13 START 94.0
HIERARCH ESO ISS PBLA13 END 94.3
HIERARCH ESO ISS PBL14 START 127.947
HIERARCH ESO ISS PBL14 END 127.876
HIERARCH ESO ISS PBLA14 START 72.67
HIERARCH ESO ISS PBLA14 END 72.89
HIERARCH ESO ISS PBL23 START 58.184
HIERARCH ESO ISS PBL23 END 58.212
HIERARCH ESO ISS PBLA23 START 57.1
HIERARCH ESO ISS PBLA23 END 57.4
HIERARCH ESO ISS PBL24 START 89.573
HIERARCH ESO ISS PBL24 END 89.682
HIERARCH ESO ISS PBLA24 START 28.532
HIERARCH ESO ISS PBLA24 END 28.889
HIERARCH ESO ISS PBL34 START 47.497
HIERARCH ESO ISS PBL34 END 47.473
HIERARCH ESO ISS PBLA34 START 352.646
HIERARCH ESO ISS PBLA34 END 353.107
HIERARCH ESO ISS AMBI TAU0 START 0.002946
HIERARCH ESO ISS AMBI TAU0 END 0.002382
HIERARCH ESO ISS AMBI TEMP 12.02
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 1.05