Exposure
ID
GRAVI.2023-08-18T02:37:22.724_1
Header ID
GRAVI.2023-08-18T02:37:22.724
Date updated
2023-08-18 02:50:22 UTC+0000
Release date
2024-08-18 02:50:22 UTC+0000
UTC Start
2023-08-18 02:37:22.724
UTC End
2023-08-18 02:40:02.724
MJD Start
60174.10929079
MJD End
60174.11114264186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.002469
Ambient temperature (°C)
10.52
Seeing (arcsec)
1.24
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 90.0570 90.0050 137.8000 138.4000
A0-J2 122.6370 122.3350 117.9000 118.5000
A0-K0 112.8090 112.3070 96.6260 97.2280
G1-J2 48.8180 48.5570 78.9000 79.5000
G1-K0 74.4570 74.1590 43.8440 44.1770
J2-K0 44.4940 44.4800 4.7230 5.0840
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 60174.10929079
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 90.057
HIERARCH ESO ISS PBL12 END 90.005
HIERARCH ESO ISS PBLA12 START 137.8
HIERARCH ESO ISS PBLA12 END 138.4
HIERARCH ESO ISS PBL13 START 122.637
HIERARCH ESO ISS PBL13 END 122.335
HIERARCH ESO ISS PBLA13 START 117.9
HIERARCH ESO ISS PBLA13 END 118.5
HIERARCH ESO ISS PBL14 START 112.809
HIERARCH ESO ISS PBL14 END 112.307
HIERARCH ESO ISS PBLA14 START 96.626
HIERARCH ESO ISS PBLA14 END 97.228
HIERARCH ESO ISS PBL23 START 48.818
HIERARCH ESO ISS PBL23 END 48.557
HIERARCH ESO ISS PBLA23 START 78.9
HIERARCH ESO ISS PBLA23 END 79.5
HIERARCH ESO ISS PBL24 START 74.457
HIERARCH ESO ISS PBL24 END 74.159
HIERARCH ESO ISS PBLA24 START 43.844
HIERARCH ESO ISS PBLA24 END 44.177
HIERARCH ESO ISS PBL34 START 44.494
HIERARCH ESO ISS PBL34 END 44.48
HIERARCH ESO ISS PBLA34 START 4.723
HIERARCH ESO ISS PBLA34 END 5.084
HIERARCH ESO ISS AMBI TAU0 START 0.002851
HIERARCH ESO ISS AMBI TAU0 END 0.002087
HIERARCH ESO ISS AMBI TEMP 10.52
HIERARCH ESO ISS AMBI FWHM START 1.08
HIERARCH ESO ISS AMBI FWHM END 1.4