Exposure
ID
GRAVI.2021-11-27T05:59:52.788_1
Header ID
GRAVI.2021-11-27T05:59:52.788
Date updated
2021-11-27 06:11:16 UTC+0000
Release date
2021-11-27 05:59:52 UTC+0000
UTC Start
2021-11-27 05:59:52.788
UTC End
2021-11-27 06:03:52.788
MJD Start
59545.24991653
MJD End
59545.2526943078
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.006692
Ambient temperature (°C)
11.22
Seeing (arcsec)
0.585
Observation
ID
48723
Category
calibrator
Program ID
108.224U.001
Program Title
SPATIALLY RESOLVING BETELGEUSE AND VY CMA, THE CORNERSTONES OF THE RED SUPERGIANT FAMILY
Program Type
Normal
PI / COI
MONTARGES/ LEBRE/ DUPREE/ HUMPHREYS/ CANNON/ LAGADEC/ SCICLUNA/ KERVELLA/ DE KOTER/ LOPEZ ARISTE/ SANCHEZ/ PALADINI/ DECIN/ KRAVCHENKO/ WITTKOWSKI/ NORRIS/ CHIAVASSA/ RIDGWAY/ PERRIN/ HAUBOIS/ CANTALLOUBE/ RAU/ BRUNO
Target
ID
36490
Name
HD_39400
RA
88.107905
DEC
1.8551
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 23.8990 23.7970 138.9000 139.1000
A0-D0 31.4510 31.5510 72.9000 72.9000
A0-C1 22.3420 22.2780 113.5210 113.5580
B2-D0 30.8110 30.9330 27.7000 28.1000
B2-C1 10.2630 10.3040 27.6810 28.0760
D0-C1 20.5480 20.6290 207.7490 208.1440
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 108.224U.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59545.24991653
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD_39400
HIERARCH ESO INS SOBJ NAME HD_39400
RA 88.107905
DEC 1.8551
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 23.899
HIERARCH ESO ISS PBL12 END 23.797
HIERARCH ESO ISS PBLA12 START 138.9
HIERARCH ESO ISS PBLA12 END 139.1
HIERARCH ESO ISS PBL13 START 31.451
HIERARCH ESO ISS PBL13 END 31.551
HIERARCH ESO ISS PBLA13 START 72.9
HIERARCH ESO ISS PBLA13 END 72.9
HIERARCH ESO ISS PBL14 START 22.342
HIERARCH ESO ISS PBL14 END 22.278
HIERARCH ESO ISS PBLA14 START 113.521
HIERARCH ESO ISS PBLA14 END 113.558
HIERARCH ESO ISS PBL23 START 30.811
HIERARCH ESO ISS PBL23 END 30.933
HIERARCH ESO ISS PBLA23 START 27.7
HIERARCH ESO ISS PBLA23 END 28.1
HIERARCH ESO ISS PBL24 START 10.263
HIERARCH ESO ISS PBL24 END 10.304
HIERARCH ESO ISS PBLA24 START 27.681
HIERARCH ESO ISS PBLA24 END 28.076
HIERARCH ESO ISS PBL34 START 20.548
HIERARCH ESO ISS PBL34 END 20.629
HIERARCH ESO ISS PBLA34 START 207.749
HIERARCH ESO ISS PBLA34 END 208.144
HIERARCH ESO ISS AMBI TAU0 START 0.00787
HIERARCH ESO ISS AMBI TAU0 END 0.005514
HIERARCH ESO ISS AMBI TEMP 11.22
HIERARCH ESO ISS AMBI FWHM START 0.49
HIERARCH ESO ISS AMBI FWHM END 0.68