Exposure
ID
GRAVI.2021-11-17T03:11:10.750_1
Header ID
GRAVI.2021-11-17T03:11:10.750
Date updated
2021-11-17 03:26:31 UTC+0000
Release date
2022-11-17 03:26:31 UTC+0000
UTC Start
2021-11-17 03:11:10.750
UTC End
2021-11-17 03:15:10.750
MJD Start
59535.13276331
MJD End
59535.1355410878
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0039365
Ambient temperature (°C)
12.79
Seeing (arcsec)
0.8
Observation
ID
48894
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
36606
Name
AK_For
RA
52.344065
DEC
-24.10039
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 87.1840 87.5620 109.2000 109.5000
A0-J2 123.5200 124.1450 85.1000 85.5000
A0-K0 123.0530 123.5690 62.3500 62.9080
G1-J2 56.5910 56.7550 46.0000 46.6000
G1-K0 89.8250 89.8800 17.2670 17.8110
J2-K0 48.5660 48.5790 343.1700 343.5510
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 59535.13276331
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME AK For
HIERARCH ESO INS SOBJ NAME AK_For
RA 52.344065
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 K0
EXPTIME 255.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 87.184
HIERARCH ESO ISS PBL12 END 87.562
HIERARCH ESO ISS PBLA12 START 109.2
HIERARCH ESO ISS PBLA12 END 109.5
HIERARCH ESO ISS PBL13 START 123.52
HIERARCH ESO ISS PBL13 END 124.145
HIERARCH ESO ISS PBLA13 START 85.1
HIERARCH ESO ISS PBLA13 END 85.5
HIERARCH ESO ISS PBL14 START 123.053
HIERARCH ESO ISS PBL14 END 123.569
HIERARCH ESO ISS PBLA14 START 62.35
HIERARCH ESO ISS PBLA14 END 62.908
HIERARCH ESO ISS PBL23 START 56.591
HIERARCH ESO ISS PBL23 END 56.755
HIERARCH ESO ISS PBLA23 START 46.0
HIERARCH ESO ISS PBLA23 END 46.6
HIERARCH ESO ISS PBL24 START 89.825
HIERARCH ESO ISS PBL24 END 89.88
HIERARCH ESO ISS PBLA24 START 17.267
HIERARCH ESO ISS PBLA24 END 17.811
HIERARCH ESO ISS PBL34 START 48.566
HIERARCH ESO ISS PBL34 END 48.579
HIERARCH ESO ISS PBLA34 START 343.17
HIERARCH ESO ISS PBLA34 END 343.551
HIERARCH ESO ISS AMBI TAU0 START 0.004401
HIERARCH ESO ISS AMBI TAU0 END 0.003472
HIERARCH ESO ISS AMBI TEMP 12.79
HIERARCH ESO ISS AMBI FWHM START 0.7
HIERARCH ESO ISS AMBI FWHM END 0.9