Exposure
ID
GRAVI.2023-08-18T02:30:37.708_1
Header ID
GRAVI.2023-08-18T02:30:37.708
Date updated
2023-08-18 02:45:19 UTC+0000
Release date
2024-08-18 02:45:19 UTC+0000
UTC Start
2023-08-18 02:30:37.708
UTC End
2023-08-18 02:33:17.708
MJD Start
60174.1046031
MJD End
60174.106454951856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0027229999999999997
Ambient temperature (°C)
10.15
Seeing (arcsec)
1.1099999999999999
Observation
ID
56620
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
41951
Name
alf_Ara
RA
262.956645
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 90.1660 90.1200 136.4000 137.0000
A0-J2 123.3110 123.0190 116.4000 117.1000
A0-K0 113.9350 113.4460 95.2700 95.8620
G1-J2 49.4020 49.1480 77.8000 78.3000
G1-K0 75.1250 74.8350 43.0870 43.4200
J2-K0 44.5220 44.5100 3.9070 4.2650
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 60174.1046031
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME alf Ara
HIERARCH ESO INS SOBJ NAME alf_Ara
RA 262.956645
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 90.166
HIERARCH ESO ISS PBL12 END 90.12
HIERARCH ESO ISS PBLA12 START 136.4
HIERARCH ESO ISS PBLA12 END 137.0
HIERARCH ESO ISS PBL13 START 123.311
HIERARCH ESO ISS PBL13 END 123.019
HIERARCH ESO ISS PBLA13 START 116.4
HIERARCH ESO ISS PBLA13 END 117.1
HIERARCH ESO ISS PBL14 START 113.935
HIERARCH ESO ISS PBL14 END 113.446
HIERARCH ESO ISS PBLA14 START 95.27
HIERARCH ESO ISS PBLA14 END 95.862
HIERARCH ESO ISS PBL23 START 49.402
HIERARCH ESO ISS PBL23 END 49.148
HIERARCH ESO ISS PBLA23 START 77.8
HIERARCH ESO ISS PBLA23 END 78.3
HIERARCH ESO ISS PBL24 START 75.125
HIERARCH ESO ISS PBL24 END 74.835
HIERARCH ESO ISS PBLA24 START 43.087
HIERARCH ESO ISS PBLA24 END 43.42
HIERARCH ESO ISS PBL34 START 44.522
HIERARCH ESO ISS PBL34 END 44.51
HIERARCH ESO ISS PBLA34 START 3.907
HIERARCH ESO ISS PBLA34 END 4.265
HIERARCH ESO ISS AMBI TAU0 START 0.002548
HIERARCH ESO ISS AMBI TAU0 END 0.002898
HIERARCH ESO ISS AMBI TEMP 10.15
HIERARCH ESO ISS AMBI FWHM START 1.09
HIERARCH ESO ISS AMBI FWHM END 1.13