Exposure
ID
GRAVI.2021-11-13T03:54:38.111_1
Header ID
GRAVI.2021-11-13T03:54:38.111
Date updated
2021-11-13 04:07:22 UTC+0000
Release date
2022-11-13 04:07:22 UTC+0000
UTC Start
2021-11-13 03:54:38.111
UTC End
2021-11-13 03:58:38.111
MJD Start
59531.1629411
MJD End
59531.1657188778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0039705
Ambient temperature (°C)
14.61
Seeing (arcsec)
0.635
Observation
ID
48807
Category
science
Program ID
108.221X.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART I
Program Type
Normal
PI / COI
GALLENNE/ PIETRZYNSKI/ GRACZYK/ PILECKI/ KERVELLA/ MÉRAND/ GIEREN
Target
ID
36558
Name
AK_For
RA
52.345282
DEC
-24.10039
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 89.2340 89.4610 111.5000 111.9000
A0-J2 126.9580 127.3480 88.0000 88.4000
A0-J3 131.1830 131.3750 40.6060 41.1350
G1-J2 57.5250 57.6370 49.7000 50.2000
G1-J3 132.3750 132.3760 1.0300 1.4830
J2-J3 103.8070 103.8460 336.4380 336.8200
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.221X.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59531.1629411
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME AK For
HIERARCH ESO INS SOBJ NAME AK_For
RA 52.345282
DEC -24.10039
HIERARCH ESO INS SPEC RES MEDIUM
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 J3
EXPTIME 255.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 89.234
HIERARCH ESO ISS PBL12 END 89.461
HIERARCH ESO ISS PBLA12 START 111.5
HIERARCH ESO ISS PBLA12 END 111.9
HIERARCH ESO ISS PBL13 START 126.958
HIERARCH ESO ISS PBL13 END 127.348
HIERARCH ESO ISS PBLA13 START 88.0
HIERARCH ESO ISS PBLA13 END 88.4
HIERARCH ESO ISS PBL14 START 131.183
HIERARCH ESO ISS PBL14 END 131.375
HIERARCH ESO ISS PBLA14 START 40.606
HIERARCH ESO ISS PBLA14 END 41.135
HIERARCH ESO ISS PBL23 START 57.525
HIERARCH ESO ISS PBL23 END 57.637
HIERARCH ESO ISS PBLA23 START 49.7
HIERARCH ESO ISS PBLA23 END 50.2
HIERARCH ESO ISS PBL24 START 132.375
HIERARCH ESO ISS PBL24 END 132.376
HIERARCH ESO ISS PBLA24 START 1.03
HIERARCH ESO ISS PBLA24 END 1.483
HIERARCH ESO ISS PBL34 START 103.807
HIERARCH ESO ISS PBL34 END 103.846
HIERARCH ESO ISS PBLA34 START 336.438
HIERARCH ESO ISS PBLA34 END 336.82
HIERARCH ESO ISS AMBI TAU0 START 0.004604
HIERARCH ESO ISS AMBI TAU0 END 0.003337
HIERARCH ESO ISS AMBI TEMP 14.61
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.64