Exposure
ID
GRAVI.2023-08-25T04:16:36.553_1
Header ID
GRAVI.2023-08-25T04:16:36.553
Date updated
2023-08-25 04:25:51 UTC+0000
Release date
2024-08-25 04:25:51 UTC+0000
UTC Start
2023-08-25 04:16:36.553
UTC End
2023-08-25 04:19:16.553
MJD Start
60181.17820085
MJD End
60181.18005270186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0067785
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.44
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 87.2560 87.2080 165.7000 166.4000
A0-J2 108.1540 107.8570 149.3000 150.1000
A0-K0 87.1640 86.5450 127.0590 127.9380
G1-J2 34.7800 34.4030 104.0000 104.7000
G1-K0 57.7380 57.2540 56.3150 56.5610
J2-K0 42.8870 42.8220 19.4690 19.7930
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 60181.17820085
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 87.256
HIERARCH ESO ISS PBL12 END 87.208
HIERARCH ESO ISS PBLA12 START 165.7
HIERARCH ESO ISS PBLA12 END 166.4
HIERARCH ESO ISS PBL13 START 108.154
HIERARCH ESO ISS PBL13 END 107.857
HIERARCH ESO ISS PBLA13 START 149.3
HIERARCH ESO ISS PBLA13 END 150.1
HIERARCH ESO ISS PBL14 START 87.164
HIERARCH ESO ISS PBL14 END 86.545
HIERARCH ESO ISS PBLA14 START 127.059
HIERARCH ESO ISS PBLA14 END 127.938
HIERARCH ESO ISS PBL23 START 34.78
HIERARCH ESO ISS PBL23 END 34.403
HIERARCH ESO ISS PBLA23 START 104.0
HIERARCH ESO ISS PBLA23 END 104.7
HIERARCH ESO ISS PBL24 START 57.738
HIERARCH ESO ISS PBL24 END 57.254
HIERARCH ESO ISS PBLA24 START 56.315
HIERARCH ESO ISS PBLA24 END 56.561
HIERARCH ESO ISS PBL34 START 42.887
HIERARCH ESO ISS PBL34 END 42.822
HIERARCH ESO ISS PBLA34 START 19.469
HIERARCH ESO ISS PBLA34 END 19.793
HIERARCH ESO ISS AMBI TAU0 START 0.006027
HIERARCH ESO ISS AMBI TAU0 END 0.00753
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.46
HIERARCH ESO ISS AMBI FWHM END 0.42