Exposure
ID
GRAVI.2020-11-30T05:52:39.747_1
Header ID
GRAVI.2020-11-30T05:52:39.747
Date updated
2020-11-30 06:00:30 UTC+0000
Release date
2020-11-30 06:00:30 UTC+0000
UTC Start
2020-11-30 05:52:39.747
UTC End
2020-11-30 05:52:44.547
MJD Start
59183.24490448
MJD End
59183.2449600356
Exposure time (s)
4.8
Validation level
1
Tau 0: Coherence time (s)
0.00374
Ambient temperature (°C)
15.69
Seeing (arcsec)
1.025
Observation
ID
45983
Category
science
Program ID
60.A-9801(U)
Program Title
TECHNICAL TIME
Program Type
Normal
PI / COI
OBSERVATORY, P
Target
ID
34607
Name
Betelgeuse
RA
88.790827
DEC
7.40712
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-SPLIT
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 88.5800 88.5560 112.6000 112.6000
A0-J2 129.2340 129.2350 92.6000 92.6000
A0-K0 125.3680 125.4020 73.8870 73.8770
G1-J2 54.9990 55.0220 59.3000 59.3000
G1-K0 78.8920 78.9210 29.3230 29.3480
J2-K0 41.6220 41.6150 347.9870 348.0200
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 60.A-9801(U)
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 59183.24490448
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME Betelgeuse
HIERARCH ESO INS SOBJ NAME Betelgeuse
RA 88.790827
DEC 7.40712
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 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 23.0
HIERARCH ESO DET2 SEQ1 DIT 0.3
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 88.58
HIERARCH ESO ISS PBL12 END 88.556
HIERARCH ESO ISS PBLA12 START 112.6
HIERARCH ESO ISS PBLA12 END 112.6
HIERARCH ESO ISS PBL13 START 129.234
HIERARCH ESO ISS PBL13 END 129.235
HIERARCH ESO ISS PBLA13 START 92.6
HIERARCH ESO ISS PBLA13 END 92.6
HIERARCH ESO ISS PBL14 START 125.368
HIERARCH ESO ISS PBL14 END 125.402
HIERARCH ESO ISS PBLA14 START 73.887
HIERARCH ESO ISS PBLA14 END 73.877
HIERARCH ESO ISS PBL23 START 54.999
HIERARCH ESO ISS PBL23 END 55.022
HIERARCH ESO ISS PBLA23 START 59.3
HIERARCH ESO ISS PBLA23 END 59.3
HIERARCH ESO ISS PBL24 START 78.892
HIERARCH ESO ISS PBL24 END 78.921
HIERARCH ESO ISS PBLA24 START 29.323
HIERARCH ESO ISS PBLA24 END 29.348
HIERARCH ESO ISS PBL34 START 41.622
HIERARCH ESO ISS PBL34 END 41.615
HIERARCH ESO ISS PBLA34 START 347.987
HIERARCH ESO ISS PBLA34 END 348.02
HIERARCH ESO ISS AMBI TAU0 START 0.003806
HIERARCH ESO ISS AMBI TAU0 END 0.003674
HIERARCH ESO ISS AMBI TEMP 15.69
HIERARCH ESO ISS AMBI FWHM START 1.04
HIERARCH ESO ISS AMBI FWHM END 1.01