Exposure
ID
GRAVI.2021-11-17T04:34:42.609_1
Header ID
GRAVI.2021-11-17T04:34:42.609
Date updated
2021-11-17 04:45:58 UTC+0000
Release date
2021-11-17 04:34:42 UTC+0000
UTC Start
2021-11-17 04:34:42.609
UTC End
2021-11-17 04:37:22.609
MJD Start
59535.19077094
MJD End
59535.1926227919
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0033445
Ambient temperature (°C)
12.25
Seeing (arcsec)
0.995
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 72.4180 72.9820 95.2000 95.5000
A0-J2 107.5380 108.2280 66.9000 67.5000
A0-K0 115.5450 115.9440 43.6080 44.2270
G1-J2 55.5730 55.6610 28.8000 29.4000
G1-K0 90.4770 90.4780 4.8000 5.2180
J2-K0 45.7090 45.7810 335.1340 335.3490
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 59535.19077094
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 72.418
HIERARCH ESO ISS PBL12 END 72.982
HIERARCH ESO ISS PBLA12 START 95.2
HIERARCH ESO ISS PBLA12 END 95.5
HIERARCH ESO ISS PBL13 START 107.538
HIERARCH ESO ISS PBL13 END 108.228
HIERARCH ESO ISS PBLA13 START 66.9
HIERARCH ESO ISS PBLA13 END 67.5
HIERARCH ESO ISS PBL14 START 115.545
HIERARCH ESO ISS PBL14 END 115.944
HIERARCH ESO ISS PBLA14 START 43.608
HIERARCH ESO ISS PBLA14 END 44.227
HIERARCH ESO ISS PBL23 START 55.573
HIERARCH ESO ISS PBL23 END 55.661
HIERARCH ESO ISS PBLA23 START 28.8
HIERARCH ESO ISS PBLA23 END 29.4
HIERARCH ESO ISS PBL24 START 90.477
HIERARCH ESO ISS PBL24 END 90.478
HIERARCH ESO ISS PBLA24 START 4.8
HIERARCH ESO ISS PBLA24 END 5.218
HIERARCH ESO ISS PBL34 START 45.709
HIERARCH ESO ISS PBL34 END 45.781
HIERARCH ESO ISS PBLA34 START 335.134
HIERARCH ESO ISS PBLA34 END 335.349
HIERARCH ESO ISS AMBI TAU0 START 0.003379
HIERARCH ESO ISS AMBI TAU0 END 0.00331
HIERARCH ESO ISS AMBI TEMP 12.25
HIERARCH ESO ISS AMBI FWHM START 1.06
HIERARCH ESO ISS AMBI FWHM END 0.93