Exposure
ID
GRAVI.2023-07-20T02:16:57.527_1
Header ID
GRAVI.2023-07-20T02:16:57.527
Date updated
2023-07-20 02:30:58 UTC+0000
Release date
2023-07-20 02:16:57 UTC+0000
UTC Start
2023-07-20 02:16:57.527
UTC End
2023-07-20 02:20:57.527
MJD Start
60145.09511027
MJD End
60145.09788804778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.005932
Ambient temperature (°C)
17.84
Seeing (arcsec)
0.585
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 90.3350 90.4160 113.3000 113.5000
A0-J2 127.6510 127.9970 90.6000 90.8000
A0-K0 124.7890 125.2530 68.7510 69.0690
G1-J2 56.3730 56.5780 52.4000 52.8000
G1-K0 87.5590 87.7170 22.3790 22.8630
J2-K0 47.9480 47.9120 346.3190 346.7310
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 60145.09511027
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 90.335
HIERARCH ESO ISS PBL12 END 90.416
HIERARCH ESO ISS PBLA12 START 113.3
HIERARCH ESO ISS PBLA12 END 113.5
HIERARCH ESO ISS PBL13 START 127.651
HIERARCH ESO ISS PBL13 END 127.997
HIERARCH ESO ISS PBLA13 START 90.6
HIERARCH ESO ISS PBLA13 END 90.8
HIERARCH ESO ISS PBL14 START 124.789
HIERARCH ESO ISS PBL14 END 125.253
HIERARCH ESO ISS PBLA14 START 68.751
HIERARCH ESO ISS PBLA14 END 69.069
HIERARCH ESO ISS PBL23 START 56.373
HIERARCH ESO ISS PBL23 END 56.578
HIERARCH ESO ISS PBLA23 START 52.4
HIERARCH ESO ISS PBLA23 END 52.8
HIERARCH ESO ISS PBL24 START 87.559
HIERARCH ESO ISS PBL24 END 87.717
HIERARCH ESO ISS PBLA24 START 22.379
HIERARCH ESO ISS PBLA24 END 22.863
HIERARCH ESO ISS PBL34 START 47.948
HIERARCH ESO ISS PBL34 END 47.912
HIERARCH ESO ISS PBLA34 START 346.319
HIERARCH ESO ISS PBLA34 END 346.731
HIERARCH ESO ISS AMBI TAU0 START 0.005263
HIERARCH ESO ISS AMBI TAU0 END 0.006601
HIERARCH ESO ISS AMBI TEMP 17.84
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.56