Exposure
ID
GRAVI.2021-11-17T04:19:54.572_1
Header ID
GRAVI.2021-11-17T04:19:54.572
Date updated
2021-11-17 04:31:16 UTC+0000
Release date
2021-11-17 04:19:54 UTC+0000
UTC Start
2021-11-17 04:19:54.572
UTC End
2021-11-17 04:22:34.572
MJD Start
59535.18049273
MJD End
59535.1823445819
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003585
Ambient temperature (°C)
12.52
Seeing (arcsec)
0.73
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 69.4300 70.0320 93.2000 93.6000
A0-J2 103.9390 104.6570 63.9000 64.5000
A0-K0 113.5090 113.9100 40.3790 41.0250
G1-J2 55.1300 55.2160 25.8000 26.4000
G1-K0 90.4740 90.4740 2.6720 3.0900
J2-K0 45.3160 45.3960 334.0770 334.2790
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 59535.18049273
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 69.43
HIERARCH ESO ISS PBL12 END 70.032
HIERARCH ESO ISS PBLA12 START 93.2
HIERARCH ESO ISS PBLA12 END 93.6
HIERARCH ESO ISS PBL13 START 103.939
HIERARCH ESO ISS PBL13 END 104.657
HIERARCH ESO ISS PBLA13 START 63.9
HIERARCH ESO ISS PBLA13 END 64.5
HIERARCH ESO ISS PBL14 START 113.509
HIERARCH ESO ISS PBL14 END 113.91
HIERARCH ESO ISS PBLA14 START 40.379
HIERARCH ESO ISS PBLA14 END 41.025
HIERARCH ESO ISS PBL23 START 55.13
HIERARCH ESO ISS PBL23 END 55.216
HIERARCH ESO ISS PBLA23 START 25.8
HIERARCH ESO ISS PBLA23 END 26.4
HIERARCH ESO ISS PBL24 START 90.474
HIERARCH ESO ISS PBL24 END 90.474
HIERARCH ESO ISS PBLA24 START 2.672
HIERARCH ESO ISS PBLA24 END 3.09
HIERARCH ESO ISS PBL34 START 45.316
HIERARCH ESO ISS PBL34 END 45.396
HIERARCH ESO ISS PBLA34 START 334.077
HIERARCH ESO ISS PBLA34 END 334.279
HIERARCH ESO ISS AMBI TAU0 START 0.003537
HIERARCH ESO ISS AMBI TAU0 END 0.003633
HIERARCH ESO ISS AMBI TEMP 12.52
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.69