Exposure
ID
GRAVI.2021-09-01T08:58:23.083_1
Header ID
GRAVI.2021-09-01T08:58:23.083
Date updated
2021-09-01 09:11:49 UTC+0000
Release date
2021-09-01 08:58:23 UTC+0000
UTC Start
2021-09-01 08:58:23.083
UTC End
2021-09-01 09:02:23.083
MJD Start
59458.37387828
MJD End
59458.3766560578
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0032255
Ambient temperature (°C)
12.45
Seeing (arcsec)
0.64
Observation
ID
48062
Category
calibrator
Program ID
104.20UZ.001
Program Title
BETELGEUSE IS BECOMING FAINTER: THE HIGH ANGULAR RESOLUTION RESPONSE
Program Type
ToO
PI / COI
MONTARGES/ CANTALLOUBE/ HUBY/ CANNON/ KERVELLA/ LAGADEC/ DUPREE/ DECIN/ LEBRE/ PERRIN/ LOPEZ ARISTE
Target
ID
36068
Name
HD_39400
RA
88.107906
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 24.9970 25.0440 137.4000 137.2000
A0-D0 20.8870 21.2940 65.4000 65.9000
A0-C1 19.9480 20.1210 118.0400 117.7450
B2-D0 27.1550 27.1860 4.4000 5.1000
B2-C1 9.0490 9.0590 4.3360 5.0950
D0-C1 18.1060 18.1270 184.4000 185.1590
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 104.20UZ.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 59458.37387828
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME HD_39400
HIERARCH ESO INS SOBJ NAME HD_39400
RA 88.107906
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 24.997
HIERARCH ESO ISS PBL12 END 25.044
HIERARCH ESO ISS PBLA12 START 137.4
HIERARCH ESO ISS PBLA12 END 137.2
HIERARCH ESO ISS PBL13 START 20.887
HIERARCH ESO ISS PBL13 END 21.294
HIERARCH ESO ISS PBLA13 START 65.4
HIERARCH ESO ISS PBLA13 END 65.9
HIERARCH ESO ISS PBL14 START 19.948
HIERARCH ESO ISS PBL14 END 20.121
HIERARCH ESO ISS PBLA14 START 118.04
HIERARCH ESO ISS PBLA14 END 117.745
HIERARCH ESO ISS PBL23 START 27.155
HIERARCH ESO ISS PBL23 END 27.186
HIERARCH ESO ISS PBLA23 START 4.4
HIERARCH ESO ISS PBLA23 END 5.1
HIERARCH ESO ISS PBL24 START 9.049
HIERARCH ESO ISS PBL24 END 9.059
HIERARCH ESO ISS PBLA24 START 4.336
HIERARCH ESO ISS PBLA24 END 5.095
HIERARCH ESO ISS PBL34 START 18.106
HIERARCH ESO ISS PBL34 END 18.127
HIERARCH ESO ISS PBLA34 START 184.4
HIERARCH ESO ISS PBLA34 END 185.159
HIERARCH ESO ISS AMBI TAU0 START 0.003228
HIERARCH ESO ISS AMBI TAU0 END 0.003223
HIERARCH ESO ISS AMBI TEMP 12.45
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.61