Exposure
ID
GRAVI.2023-08-25T04:13:18.545_1
Header ID
GRAVI.2023-08-25T04:13:18.545
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 04:13:18.545
UTC End
2023-08-25 04:15:58.545
MJD Start
60181.17590909
MJD End
60181.17776094186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0052695
Ambient temperature (°C)
13.79
Seeing (arcsec)
0.475
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 87.3120 87.2620 165.0000 165.6000
A0-J2 108.4900 108.1860 148.3000 149.2000
A0-K0 87.8540 87.2310 126.0980 126.9650
G1-J2 35.1960 34.8200 103.2000 103.9000
G1-K0 58.2690 57.7890 56.0400 56.2880
J2-K0 42.9560 42.8930 19.1080 19.4340
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 60181.17590909
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 87.312
HIERARCH ESO ISS PBL12 END 87.262
HIERARCH ESO ISS PBLA12 START 165.0
HIERARCH ESO ISS PBLA12 END 165.6
HIERARCH ESO ISS PBL13 START 108.49
HIERARCH ESO ISS PBL13 END 108.186
HIERARCH ESO ISS PBLA13 START 148.3
HIERARCH ESO ISS PBLA13 END 149.2
HIERARCH ESO ISS PBL14 START 87.854
HIERARCH ESO ISS PBL14 END 87.231
HIERARCH ESO ISS PBLA14 START 126.098
HIERARCH ESO ISS PBLA14 END 126.965
HIERARCH ESO ISS PBL23 START 35.196
HIERARCH ESO ISS PBL23 END 34.82
HIERARCH ESO ISS PBLA23 START 103.2
HIERARCH ESO ISS PBLA23 END 103.9
HIERARCH ESO ISS PBL24 START 58.269
HIERARCH ESO ISS PBL24 END 57.789
HIERARCH ESO ISS PBLA24 START 56.04
HIERARCH ESO ISS PBLA24 END 56.288
HIERARCH ESO ISS PBL34 START 42.956
HIERARCH ESO ISS PBL34 END 42.893
HIERARCH ESO ISS PBLA34 START 19.108
HIERARCH ESO ISS PBLA34 END 19.434
HIERARCH ESO ISS AMBI TAU0 START 0.004892
HIERARCH ESO ISS AMBI TAU0 END 0.005647
HIERARCH ESO ISS AMBI TEMP 13.79
HIERARCH ESO ISS AMBI FWHM START 0.48
HIERARCH ESO ISS AMBI FWHM END 0.47