Exposure
ID
GRAVI.2021-11-17T04:31:30.601_1
Header ID
GRAVI.2021-11-17T04:31:30.601
Date updated
2021-11-17 04:41:19 UTC+0000
Release date
2021-11-17 04:31:30 UTC+0000
UTC Start
2021-11-17 04:31:30.601
UTC End
2021-11-17 04:34:10.601
MJD Start
59535.18854862
MJD End
59535.1904004719
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003096
Ambient temperature (°C)
12.34
Seeing (arcsec)
1.065
Observation
ID
48897
Category
calibrator
Program ID
108.222E.001
Program Title
THE ORIGIN OF BE STARS AND THE ELUSIVE MASSIVE HELIUM STARS
Program Type
Normal
PI / COI
SHENAR/ BODENSTEINER/ SANA/ DSILVA/ LANGER/ SCHÜRMANN/ OSKINOVA/ MAHY/ LANTHERMANN/ BORDIER/ FROST/ MARCHANT/ GILKIS/ KLUSKA
Target
ID
36607
Name
HD_44915
RA
95.710575
DEC
-34.45271
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 71.7920 72.3620 94.7000 95.1000
A0-J2 106.7770 107.4710 66.3000 66.8000
A0-K0 115.1090 115.5070 42.9260 43.5480
G1-J2 55.4760 55.5640 28.2000 28.8000
G1-K0 90.4760 90.4770 4.3420 4.7590
J2-K0 45.6270 45.7010 334.9010 335.1130
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.222E.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59535.18854862
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 44915
HIERARCH ESO INS SOBJ NAME HD_44915
RA 95.710575
DEC -34.45271
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 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 71.792
HIERARCH ESO ISS PBL12 END 72.362
HIERARCH ESO ISS PBLA12 START 94.7
HIERARCH ESO ISS PBLA12 END 95.1
HIERARCH ESO ISS PBL13 START 106.777
HIERARCH ESO ISS PBL13 END 107.471
HIERARCH ESO ISS PBLA13 START 66.3
HIERARCH ESO ISS PBLA13 END 66.8
HIERARCH ESO ISS PBL14 START 115.109
HIERARCH ESO ISS PBL14 END 115.507
HIERARCH ESO ISS PBLA14 START 42.926
HIERARCH ESO ISS PBLA14 END 43.548
HIERARCH ESO ISS PBL23 START 55.476
HIERARCH ESO ISS PBL23 END 55.564
HIERARCH ESO ISS PBLA23 START 28.2
HIERARCH ESO ISS PBLA23 END 28.8
HIERARCH ESO ISS PBL24 START 90.476
HIERARCH ESO ISS PBL24 END 90.477
HIERARCH ESO ISS PBLA24 START 4.342
HIERARCH ESO ISS PBLA24 END 4.759
HIERARCH ESO ISS PBL34 START 45.627
HIERARCH ESO ISS PBL34 END 45.701
HIERARCH ESO ISS PBLA34 START 334.901
HIERARCH ESO ISS PBLA34 END 335.113
HIERARCH ESO ISS AMBI TAU0 START 0.003021
HIERARCH ESO ISS AMBI TAU0 END 0.003171
HIERARCH ESO ISS AMBI TEMP 12.34
HIERARCH ESO ISS AMBI FWHM START 1.11
HIERARCH ESO ISS AMBI FWHM END 1.02