Exposure
ID
GRAVI.2021-12-31T03:40:06.586_1
Header ID
GRAVI.2021-12-31T03:40:06.586
Date updated
2021-12-31 03:51:51 UTC+0000
Release date
2021-12-31 03:40:06 UTC+0000
UTC Start
2021-12-31 03:40:06.586
UTC End
2021-12-31 03:42:46.586
MJD Start
59579.152854
MJD End
59579.1547058519
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0041255
Ambient temperature (°C)
14.65
Seeing (arcsec)
0.745
Observation
ID
49122
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
36757
Name
HD_44915
RA
95.711922
DEC
-34.45271
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 88.1770 88.3730 109.7000 110.1000
A0-J2 127.2920 127.5180 86.3000 86.7000
A0-J3 132.4190 132.4110 40.3390 40.7460
G1-J2 58.1970 58.2110 49.1000 49.6000
G1-J3 130.7140 130.7090 1.1900 1.5050
J2-J3 101.4040 101.5010 335.9660 336.2540
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 59579.152854
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 44915
HIERARCH ESO INS SOBJ NAME HD_44915
RA 95.711922
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 J3
EXPTIME 176.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 88.177
HIERARCH ESO ISS PBL12 END 88.373
HIERARCH ESO ISS PBLA12 START 109.7
HIERARCH ESO ISS PBLA12 END 110.1
HIERARCH ESO ISS PBL13 START 127.292
HIERARCH ESO ISS PBL13 END 127.518
HIERARCH ESO ISS PBLA13 START 86.3
HIERARCH ESO ISS PBLA13 END 86.7
HIERARCH ESO ISS PBL14 START 132.419
HIERARCH ESO ISS PBL14 END 132.411
HIERARCH ESO ISS PBLA14 START 40.339
HIERARCH ESO ISS PBLA14 END 40.746
HIERARCH ESO ISS PBL23 START 58.197
HIERARCH ESO ISS PBL23 END 58.211
HIERARCH ESO ISS PBLA23 START 49.1
HIERARCH ESO ISS PBLA23 END 49.6
HIERARCH ESO ISS PBL24 START 130.714
HIERARCH ESO ISS PBL24 END 130.709
HIERARCH ESO ISS PBLA24 START 1.19
HIERARCH ESO ISS PBLA24 END 1.505
HIERARCH ESO ISS PBL34 START 101.404
HIERARCH ESO ISS PBL34 END 101.501
HIERARCH ESO ISS PBLA34 START 335.966
HIERARCH ESO ISS PBLA34 END 336.254
HIERARCH ESO ISS AMBI TAU0 START 0.004416
HIERARCH ESO ISS AMBI TAU0 END 0.003835
HIERARCH ESO ISS AMBI TEMP 14.65
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.88