Exposure
ID
GRAVI.2021-09-01T08:48:56.059_1
Header ID
GRAVI.2021-09-01T08:48:56.059
Date updated
2021-09-01 09:00:54 UTC+0000
Release date
2021-09-01 08:48:56 UTC+0000
UTC Start
2021-09-01 08:48:56.059
UTC End
2021-09-01 08:52:56.059
MJD Start
59458.3673155
MJD End
59458.3700932778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0032965
Ambient temperature (°C)
12.45
Seeing (arcsec)
0.745
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 24.8790 24.9340 137.8000 137.6000
A0-D0 19.9650 20.3820 64.3000 64.8000
A0-C1 19.5470 19.7300 118.7460 118.4200
B2-D0 27.1030 27.1230 2.7000 3.4000
B2-C1 9.0320 9.0380 2.6390 3.4040
D0-C1 18.0710 18.0850 182.7000 183.4660
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 59458.3673155
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 24.879
HIERARCH ESO ISS PBL12 END 24.934
HIERARCH ESO ISS PBLA12 START 137.8
HIERARCH ESO ISS PBLA12 END 137.6
HIERARCH ESO ISS PBL13 START 19.965
HIERARCH ESO ISS PBL13 END 20.382
HIERARCH ESO ISS PBLA13 START 64.3
HIERARCH ESO ISS PBLA13 END 64.8
HIERARCH ESO ISS PBL14 START 19.547
HIERARCH ESO ISS PBL14 END 19.73
HIERARCH ESO ISS PBLA14 START 118.746
HIERARCH ESO ISS PBLA14 END 118.42
HIERARCH ESO ISS PBL23 START 27.103
HIERARCH ESO ISS PBL23 END 27.123
HIERARCH ESO ISS PBLA23 START 2.7
HIERARCH ESO ISS PBLA23 END 3.4
HIERARCH ESO ISS PBL24 START 9.032
HIERARCH ESO ISS PBL24 END 9.038
HIERARCH ESO ISS PBLA24 START 2.639
HIERARCH ESO ISS PBLA24 END 3.404
HIERARCH ESO ISS PBL34 START 18.071
HIERARCH ESO ISS PBL34 END 18.085
HIERARCH ESO ISS PBLA34 START 182.7
HIERARCH ESO ISS PBLA34 END 183.466
HIERARCH ESO ISS AMBI TAU0 START 0.003662
HIERARCH ESO ISS AMBI TAU0 END 0.002931
HIERARCH ESO ISS AMBI TEMP 12.45
HIERARCH ESO ISS AMBI FWHM START 0.6
HIERARCH ESO ISS AMBI FWHM END 0.89