Exposure
ID
GRAVI.2023-08-25T04:23:21.571_1
Header ID
GRAVI.2023-08-25T04:23:21.571
Date updated
2023-08-25 04:35:32 UTC+0000
Release date
2024-08-25 04:35:32 UTC+0000
UTC Start
2023-08-25 04:23:21.571
UTC End
2023-08-25 04:26:01.571
MJD Start
60181.18288855
MJD End
60181.184740401855
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.008059
Ambient temperature (°C)
13.62
Seeing (arcsec)
0.4
Observation
ID
56621
Category
science
Program ID
111.24TN.001
Program Title
SUBDWARF COMPANIONS AND THE ORIGIN OF BE STARS: TOWARDS THE FIRST SET OF FUNDAMENTAL PARAMETERS
Program Type
Normal
PI / COI
KLEMENT/ RIVINIUS/ BAADE/ MÉRAND
Target
ID
41952
Name
alf_Ara
RA
262.956644
DEC
-49.8765
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 87.1490 87.1060 167.3000 168.0000
A0-J2 107.4800 107.1960 151.2000 152.0000
A0-K0 85.7490 85.1390 129.0910 129.9940
G1-J2 33.9140 33.5350 105.7000 106.4000
G1-K0 56.6220 56.1290 56.8750 57.1150
J2-K0 42.7370 42.6700 20.2110 20.5330
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24TN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60181.18288855
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME alf Ara
HIERARCH ESO INS SOBJ NAME alf_Ara
RA 262.956644
DEC -49.8765
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
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 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 87.149
HIERARCH ESO ISS PBL12 END 87.106
HIERARCH ESO ISS PBLA12 START 167.3
HIERARCH ESO ISS PBLA12 END 168.0
HIERARCH ESO ISS PBL13 START 107.48
HIERARCH ESO ISS PBL13 END 107.196
HIERARCH ESO ISS PBLA13 START 151.2
HIERARCH ESO ISS PBLA13 END 152.0
HIERARCH ESO ISS PBL14 START 85.749
HIERARCH ESO ISS PBL14 END 85.139
HIERARCH ESO ISS PBLA14 START 129.091
HIERARCH ESO ISS PBLA14 END 129.994
HIERARCH ESO ISS PBL23 START 33.914
HIERARCH ESO ISS PBL23 END 33.535
HIERARCH ESO ISS PBLA23 START 105.7
HIERARCH ESO ISS PBLA23 END 106.4
HIERARCH ESO ISS PBL24 START 56.622
HIERARCH ESO ISS PBL24 END 56.129
HIERARCH ESO ISS PBLA24 START 56.875
HIERARCH ESO ISS PBLA24 END 57.115
HIERARCH ESO ISS PBL34 START 42.737
HIERARCH ESO ISS PBL34 END 42.67
HIERARCH ESO ISS PBLA34 START 20.211
HIERARCH ESO ISS PBLA34 END 20.533
HIERARCH ESO ISS AMBI TAU0 START 0.009052
HIERARCH ESO ISS AMBI TAU0 END 0.007066
HIERARCH ESO ISS AMBI TEMP 13.62
HIERARCH ESO ISS AMBI FWHM START 0.41
HIERARCH ESO ISS AMBI FWHM END 0.39