Exposure
ID
GRAVI.2021-10-04T04:08:13.663_1
Header ID
GRAVI.2021-10-04T04:08:13.663
Date updated
2021-10-04 04:20:51 UTC+0000
Release date
2022-10-04 04:20:51 UTC+0000
UTC Start
2021-10-04 04:08:13.663
UTC End
2021-10-04 04:12:13.663
MJD Start
59491.17238036
MJD End
59491.1751581378
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0038925
Ambient temperature (°C)
12.27
Seeing (arcsec)
0.625
Observation
ID
48421
Category
science
Program ID
105.207C.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART II
Program Type
Normal
PI / COI
GALLENNE/ GIEREN/ PIETRZYNSKI/ GRACZYK/ PILECKI/ KERVELLA/ MERAND
Target
ID
36306
Name
LL_Aqr
RA
338.673764
DEC
-3.5996
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 76.7500 75.9790 120.6000 121.0000
A0-J2 115.4630 114.3740 94.6000 94.7000
A0-K0 121.8140 121.1010 73.0570 73.0190
G1-J2 57.3470 57.1800 58.8000 58.7000
G1-K0 90.0580 90.1440 34.0860 34.2320
J2-K0 44.8660 44.8790 1.8360 2.3440
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.207C.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59491.17238036
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME LL_Aqr
HIERARCH ESO INS SOBJ NAME LL_Aqr
RA 338.673764
DEC -3.5996
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 76.75
HIERARCH ESO ISS PBL12 END 75.979
HIERARCH ESO ISS PBLA12 START 120.6
HIERARCH ESO ISS PBLA12 END 121.0
HIERARCH ESO ISS PBL13 START 115.463
HIERARCH ESO ISS PBL13 END 114.374
HIERARCH ESO ISS PBLA13 START 94.6
HIERARCH ESO ISS PBLA13 END 94.7
HIERARCH ESO ISS PBL14 START 121.814
HIERARCH ESO ISS PBL14 END 121.101
HIERARCH ESO ISS PBLA14 START 73.057
HIERARCH ESO ISS PBLA14 END 73.019
HIERARCH ESO ISS PBL23 START 57.347
HIERARCH ESO ISS PBL23 END 57.18
HIERARCH ESO ISS PBLA23 START 58.8
HIERARCH ESO ISS PBLA23 END 58.7
HIERARCH ESO ISS PBL24 START 90.058
HIERARCH ESO ISS PBL24 END 90.144
HIERARCH ESO ISS PBLA24 START 34.086
HIERARCH ESO ISS PBLA24 END 34.232
HIERARCH ESO ISS PBL34 START 44.866
HIERARCH ESO ISS PBL34 END 44.879
HIERARCH ESO ISS PBLA34 START 1.836
HIERARCH ESO ISS PBLA34 END 2.344
HIERARCH ESO ISS AMBI TAU0 START 0.004072
HIERARCH ESO ISS AMBI TAU0 END 0.003713
HIERARCH ESO ISS AMBI TEMP 12.27
HIERARCH ESO ISS AMBI FWHM START 0.59
HIERARCH ESO ISS AMBI FWHM END 0.66