Exposure
ID
GRAVI.2023-07-20T03:57:08.527_1
Header ID
GRAVI.2023-07-20T03:57:08.527
Date updated
2023-07-20 04:05:44 UTC+0000
Release date
2024-07-20 04:05:44 UTC+0000
UTC Start
2023-07-20 03:57:08.527
UTC End
2023-07-20 03:59:48.527
MJD Start
60145.16468202
MJD End
60145.1665338719
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004534
Ambient temperature (°C)
17.2
Seeing (arcsec)
0.355
Observation
ID
56305
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
41711
Name
chi_Oph
RA
246.753622
DEC
-18.45637
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 75.6570 75.2370 136.3000 136.9000
A0-J2 103.1200 102.2090 108.2000 108.6000
A0-K0 105.6330 104.7510 81.4540 81.6170
G1-J2 50.9330 50.6200 63.8000 63.8000
G1-K0 87.6210 87.4540 36.5500 36.6380
J2-K0 48.3210 48.3310 7.7170 8.0320
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 60145.16468202
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME chi Oph
HIERARCH ESO INS SOBJ NAME chi_Oph
RA 246.753622
DEC -18.45637
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 75.657
HIERARCH ESO ISS PBL12 END 75.237
HIERARCH ESO ISS PBLA12 START 136.3
HIERARCH ESO ISS PBLA12 END 136.9
HIERARCH ESO ISS PBL13 START 103.12
HIERARCH ESO ISS PBL13 END 102.209
HIERARCH ESO ISS PBLA13 START 108.2
HIERARCH ESO ISS PBLA13 END 108.6
HIERARCH ESO ISS PBL14 START 105.633
HIERARCH ESO ISS PBL14 END 104.751
HIERARCH ESO ISS PBLA14 START 81.454
HIERARCH ESO ISS PBLA14 END 81.617
HIERARCH ESO ISS PBL23 START 50.933
HIERARCH ESO ISS PBL23 END 50.62
HIERARCH ESO ISS PBLA23 START 63.8
HIERARCH ESO ISS PBLA23 END 63.8
HIERARCH ESO ISS PBL24 START 87.621
HIERARCH ESO ISS PBL24 END 87.454
HIERARCH ESO ISS PBLA24 START 36.55
HIERARCH ESO ISS PBLA24 END 36.638
HIERARCH ESO ISS PBL34 START 48.321
HIERARCH ESO ISS PBL34 END 48.331
HIERARCH ESO ISS PBLA34 START 7.717
HIERARCH ESO ISS PBLA34 END 8.032
HIERARCH ESO ISS AMBI TAU0 START 0.004534
HIERARCH ESO ISS AMBI TAU0 END 0.004534
HIERARCH ESO ISS AMBI TEMP 17.2
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.37