Exposure
ID
GRAVI.2021-10-04T06:20:44.558_1
Header ID
GRAVI.2021-10-04T06:20:44.558
Date updated
2021-10-04 06:35:57 UTC+0000
Release date
2022-10-04 06:35:57 UTC+0000
UTC Start
2021-10-04 06:20:44.558
UTC End
2021-10-04 06:24:44.558
MJD Start
59491.26440461
MJD End
59491.2671823878
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0036655
Ambient temperature (°C)
12.16
Seeing (arcsec)
0.89
Observation
ID
48404
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
36293
Name
AK_For
RA
52.344064
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 88.5280 88.8140 110.6000 110.9000
A0-J2 125.7590 126.2420 86.8000 87.3000
A0-K0 124.9180 125.3270 64.4750 64.9940
G1-J2 57.1890 57.3220 48.3000 48.8000
G1-K0 90.0310 90.0810 19.3580 19.8770
J2-K0 48.6100 48.6180 344.6820 345.0770
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 59491.26440461
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME AK For
HIERARCH ESO INS SOBJ NAME AK_For
RA 52.344064
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 88.528
HIERARCH ESO ISS PBL12 END 88.814
HIERARCH ESO ISS PBLA12 START 110.6
HIERARCH ESO ISS PBLA12 END 110.9
HIERARCH ESO ISS PBL13 START 125.759
HIERARCH ESO ISS PBL13 END 126.242
HIERARCH ESO ISS PBLA13 START 86.8
HIERARCH ESO ISS PBLA13 END 87.3
HIERARCH ESO ISS PBL14 START 124.918
HIERARCH ESO ISS PBL14 END 125.327
HIERARCH ESO ISS PBLA14 START 64.475
HIERARCH ESO ISS PBLA14 END 64.994
HIERARCH ESO ISS PBL23 START 57.189
HIERARCH ESO ISS PBL23 END 57.322
HIERARCH ESO ISS PBLA23 START 48.3
HIERARCH ESO ISS PBLA23 END 48.8
HIERARCH ESO ISS PBL24 START 90.031
HIERARCH ESO ISS PBL24 END 90.081
HIERARCH ESO ISS PBLA24 START 19.358
HIERARCH ESO ISS PBLA24 END 19.877
HIERARCH ESO ISS PBL34 START 48.61
HIERARCH ESO ISS PBL34 END 48.618
HIERARCH ESO ISS PBLA34 START 344.682
HIERARCH ESO ISS PBLA34 END 345.077
HIERARCH ESO ISS AMBI TAU0 START 0.00339
HIERARCH ESO ISS AMBI TAU0 END 0.003941
HIERARCH ESO ISS AMBI TEMP 12.16
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.95