Exposure
ID
GRAVI.2021-11-17T05:02:36.679_1
Header ID
GRAVI.2021-11-17T05:02:36.679
Date updated
2021-11-17 05:16:13 UTC+0000
Release date
2021-11-17 05:02:36 UTC+0000
UTC Start
2021-11-17 05:02:36.679
UTC End
2021-11-17 05:05:16.679
MJD Start
59535.21014675
MJD End
59535.2119986019
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0029025
Ambient temperature (°C)
11.77
Seeing (arcsec)
0.81
Observation
ID
48899
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
36609
Name
HD_44749
RA
95.459631
DEC
-34.76306
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 77.5960 78.0750 98.6000 98.9000
A0-J2 114.1160 114.7160 72.1000 72.6000
A0-K0 119.5350 119.8970 49.3880 49.9520
G1-J2 56.5020 56.5840 34.3000 34.9000
G1-K0 90.4760 90.4740 8.9120 9.3230
J2-K0 46.2980 46.3580 337.3360 337.5750
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 59535.21014675
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 44749
HIERARCH ESO INS SOBJ NAME HD_44749
RA 95.459631
DEC -34.76306
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 77.596
HIERARCH ESO ISS PBL12 END 78.075
HIERARCH ESO ISS PBLA12 START 98.6
HIERARCH ESO ISS PBLA12 END 98.9
HIERARCH ESO ISS PBL13 START 114.116
HIERARCH ESO ISS PBL13 END 114.716
HIERARCH ESO ISS PBLA13 START 72.1
HIERARCH ESO ISS PBLA13 END 72.6
HIERARCH ESO ISS PBL14 START 119.535
HIERARCH ESO ISS PBL14 END 119.897
HIERARCH ESO ISS PBLA14 START 49.388
HIERARCH ESO ISS PBLA14 END 49.952
HIERARCH ESO ISS PBL23 START 56.502
HIERARCH ESO ISS PBL23 END 56.584
HIERARCH ESO ISS PBLA23 START 34.3
HIERARCH ESO ISS PBLA23 END 34.9
HIERARCH ESO ISS PBL24 START 90.476
HIERARCH ESO ISS PBL24 END 90.474
HIERARCH ESO ISS PBLA24 START 8.912
HIERARCH ESO ISS PBLA24 END 9.323
HIERARCH ESO ISS PBL34 START 46.298
HIERARCH ESO ISS PBL34 END 46.358
HIERARCH ESO ISS PBLA34 START 337.336
HIERARCH ESO ISS PBLA34 END 337.575
HIERARCH ESO ISS AMBI TAU0 START 0.003294
HIERARCH ESO ISS AMBI TAU0 END 0.002511
HIERARCH ESO ISS AMBI TEMP 11.77
HIERARCH ESO ISS AMBI FWHM START 0.75
HIERARCH ESO ISS AMBI FWHM END 0.87