Exposure
ID
GRAVI.2021-12-31T07:14:43.127_1
Header ID
GRAVI.2021-12-31T07:14:43.127
Date updated
2021-12-31 07:25:37 UTC+0000
Release date
2021-12-31 07:14:43 UTC+0000
UTC Start
2021-12-31 07:14:43.127
UTC End
2021-12-31 07:17:23.127
MJD Start
59579.30188804
MJD End
59579.3037398919
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.006544
Ambient temperature (°C)
13.75
Seeing (arcsec)
1.015
Observation
ID
49131
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
36766
Name
HD_45315
RA
96.718631
DEC
4.06962
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 59.2660 58.5300 121.9000 122.3000
A0-J2 95.3800 94.2690 89.8000 89.7000
A0-J3 129.4430 129.1730 48.4930 48.3350
G1-J2 55.1110 54.9140 54.9000 54.7000
G1-J3 126.0670 126.2560 21.7050 21.8680
J2-J3 85.4340 85.4510 1.0360 1.4870
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 59579.30188804
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 45315
HIERARCH ESO INS SOBJ NAME HD_45315
RA 96.718631
DEC 4.06962
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 59.266
HIERARCH ESO ISS PBL12 END 58.53
HIERARCH ESO ISS PBLA12 START 121.9
HIERARCH ESO ISS PBLA12 END 122.3
HIERARCH ESO ISS PBL13 START 95.38
HIERARCH ESO ISS PBL13 END 94.269
HIERARCH ESO ISS PBLA13 START 89.8
HIERARCH ESO ISS PBLA13 END 89.7
HIERARCH ESO ISS PBL14 START 129.443
HIERARCH ESO ISS PBL14 END 129.173
HIERARCH ESO ISS PBLA14 START 48.493
HIERARCH ESO ISS PBLA14 END 48.335
HIERARCH ESO ISS PBL23 START 55.111
HIERARCH ESO ISS PBL23 END 54.914
HIERARCH ESO ISS PBLA23 START 54.9
HIERARCH ESO ISS PBLA23 END 54.7
HIERARCH ESO ISS PBL24 START 126.067
HIERARCH ESO ISS PBL24 END 126.256
HIERARCH ESO ISS PBLA24 START 21.705
HIERARCH ESO ISS PBLA24 END 21.868
HIERARCH ESO ISS PBL34 START 85.434
HIERARCH ESO ISS PBL34 END 85.451
HIERARCH ESO ISS PBLA34 START 1.036
HIERARCH ESO ISS PBLA34 END 1.487
HIERARCH ESO ISS AMBI TAU0 START 0.005688
HIERARCH ESO ISS AMBI TAU0 END 0.0074
HIERARCH ESO ISS AMBI TEMP 13.75
HIERARCH ESO ISS AMBI FWHM START 1.12
HIERARCH ESO ISS AMBI FWHM END 0.91