Exposure
ID
GRAVI.2021-11-09T04:14:45.291_1
Header ID
GRAVI.2021-11-09T04:14:45.291
Date updated
2021-11-09 04:26:03 UTC+0000
Release date
2022-11-09 04:26:03 UTC+0000
UTC Start
2021-11-09 04:14:45.291
UTC End
2021-11-09 04:18:45.291
MJD Start
59527.17691309
MJD End
59527.1796908678
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.005675
Ambient temperature (°C)
12.01
Seeing (arcsec)
0.49
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 89.4690 89.6730 111.9000 112.3000
A0-J2 127.3630 127.7150 88.5000 88.9000
A0-J3 131.3820 131.5590 41.1560 41.6750
G1-J2 57.6420 57.7440 50.3000 50.8000
G1-J3 132.3760 132.3770 1.5010 1.9540
J2-J3 103.8470 103.8800 336.8360 337.2250
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 59527.17691309
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 89.469
HIERARCH ESO ISS PBL12 END 89.673
HIERARCH ESO ISS PBLA12 START 111.9
HIERARCH ESO ISS PBLA12 END 112.3
HIERARCH ESO ISS PBL13 START 127.363
HIERARCH ESO ISS PBL13 END 127.715
HIERARCH ESO ISS PBLA13 START 88.5
HIERARCH ESO ISS PBLA13 END 88.9
HIERARCH ESO ISS PBL14 START 131.382
HIERARCH ESO ISS PBL14 END 131.559
HIERARCH ESO ISS PBLA14 START 41.156
HIERARCH ESO ISS PBLA14 END 41.675
HIERARCH ESO ISS PBL23 START 57.642
HIERARCH ESO ISS PBL23 END 57.744
HIERARCH ESO ISS PBLA23 START 50.3
HIERARCH ESO ISS PBLA23 END 50.8
HIERARCH ESO ISS PBL24 START 132.376
HIERARCH ESO ISS PBL24 END 132.377
HIERARCH ESO ISS PBLA24 START 1.501
HIERARCH ESO ISS PBLA24 END 1.954
HIERARCH ESO ISS PBL34 START 103.847
HIERARCH ESO ISS PBL34 END 103.88
HIERARCH ESO ISS PBLA34 START 336.836
HIERARCH ESO ISS PBLA34 END 337.225
HIERARCH ESO ISS AMBI TAU0 START 0.00537
HIERARCH ESO ISS AMBI TAU0 END 0.00598
HIERARCH ESO ISS AMBI TEMP 12.01
HIERARCH ESO ISS AMBI FWHM START 0.5
HIERARCH ESO ISS AMBI FWHM END 0.48