Exposure
ID
GRAVI.2021-11-03T06:59:54.966_1
Header ID
GRAVI.2021-11-03T06:59:54.966
Date updated
2021-11-03 07:10:57 UTC+0000
Release date
2021-11-03 06:59:54 UTC+0000
UTC Start
2021-11-03 06:59:54.966
UTC End
2021-11-03 07:03:54.966
MJD Start
59521.2916084
MJD End
59521.2943861778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0080175
Ambient temperature (°C)
11.8
Seeing (arcsec)
0.4
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 24.6110 24.5350 137.3000 137.4000
A0-D0 30.2830 30.4610 72.5000 72.5000
A0-C1 22.6190 22.6080 113.4880 113.4690
B2-D0 29.8090 29.9320 24.1000 24.6000
B2-C1 9.9300 9.9710 24.0590 24.5510
D0-C1 19.8790 19.9620 204.1310 204.6220
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 59521.2916084
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 24.611
HIERARCH ESO ISS PBL12 END 24.535
HIERARCH ESO ISS PBLA12 START 137.3
HIERARCH ESO ISS PBLA12 END 137.4
HIERARCH ESO ISS PBL13 START 30.283
HIERARCH ESO ISS PBL13 END 30.461
HIERARCH ESO ISS PBLA13 START 72.5
HIERARCH ESO ISS PBLA13 END 72.5
HIERARCH ESO ISS PBL14 START 22.619
HIERARCH ESO ISS PBL14 END 22.608
HIERARCH ESO ISS PBLA14 START 113.488
HIERARCH ESO ISS PBLA14 END 113.469
HIERARCH ESO ISS PBL23 START 29.809
HIERARCH ESO ISS PBL23 END 29.932
HIERARCH ESO ISS PBLA23 START 24.1
HIERARCH ESO ISS PBLA23 END 24.6
HIERARCH ESO ISS PBL24 START 9.93
HIERARCH ESO ISS PBL24 END 9.971
HIERARCH ESO ISS PBLA24 START 24.059
HIERARCH ESO ISS PBLA24 END 24.551
HIERARCH ESO ISS PBL34 START 19.879
HIERARCH ESO ISS PBL34 END 19.962
HIERARCH ESO ISS PBLA34 START 204.131
HIERARCH ESO ISS PBLA34 END 204.622
HIERARCH ESO ISS AMBI TAU0 START 0.008008
HIERARCH ESO ISS AMBI TAU0 END 0.008027
HIERARCH ESO ISS AMBI TEMP 11.8
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.39