Exposure
ID
GRAVI.2023-07-23T00:11:24.401_1
Header ID
GRAVI.2023-07-23T00:11:24.401
Date updated
2023-07-23 00:25:24 UTC+0000
Release date
2024-07-23 00:25:24 UTC+0000
UTC Start
2023-07-23 00:11:24.401
UTC End
2023-07-23 00:16:24.401
MJD Start
60148.00792131
MJD End
60148.01139353222
Exposure time (s)
300.0
Validation level
1
Tau 0: Coherence time (s)
0.0031885
Ambient temperature (°C)
16.92
Seeing (arcsec)
0.71
Observation
ID
56378
Category
science
Program ID
111.24J7.001
Program Title
VLTI/GRAVITY HUNT FOR CIRCUMBINARY EXOPLANETARY SYSTEMS
Program Type
GTO
PI / COI
CHAUVIN/ JANSON/ BERGER/ BENISTY/ BONNEFOY/ LAGRANGE/ ROUSSELET-PERRAUT/ LE BOUQUIN/ DELORME/ MILLI/ GALLENNE/ BOURDAROT/ GRATTON/ MÉRAND/ REFFERT/ DESIDERA/ VIGAN/ DESGRANGE/ SQUICCIARINI/ MEYER
Target
ID
41775
Name
b_Cen
RA
220.486947
DEC
-37.79366
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.4180 90.3450 122.7000 123.6000
A0-J2 127.7100 127.3310 100.3000 101.1000
A0-K0 124.4560 123.8970 78.5410 79.3110
G1-J2 56.0530 55.7880 62.2000 62.9000
G1-K0 86.7280 86.4700 31.9540 32.5050
J2-K0 47.6040 47.6180 355.5510 356.1510
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 111.24J7.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60148.00792131
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME b Cen
HIERARCH ESO INS SOBJ NAME b_Cen
RA 220.486947
DEC -37.79366
HIERARCH ESO INS SPEC RES MEDIUM
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 318.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 30
HIERARCH ESO ISS PBL12 START 90.418
HIERARCH ESO ISS PBL12 END 90.345
HIERARCH ESO ISS PBLA12 START 122.7
HIERARCH ESO ISS PBLA12 END 123.6
HIERARCH ESO ISS PBL13 START 127.71
HIERARCH ESO ISS PBL13 END 127.331
HIERARCH ESO ISS PBLA13 START 100.3
HIERARCH ESO ISS PBLA13 END 101.1
HIERARCH ESO ISS PBL14 START 124.456
HIERARCH ESO ISS PBL14 END 123.897
HIERARCH ESO ISS PBLA14 START 78.541
HIERARCH ESO ISS PBLA14 END 79.311
HIERARCH ESO ISS PBL23 START 56.053
HIERARCH ESO ISS PBL23 END 55.788
HIERARCH ESO ISS PBLA23 START 62.2
HIERARCH ESO ISS PBLA23 END 62.9
HIERARCH ESO ISS PBL24 START 86.728
HIERARCH ESO ISS PBL24 END 86.47
HIERARCH ESO ISS PBLA24 START 31.954
HIERARCH ESO ISS PBLA24 END 32.505
HIERARCH ESO ISS PBL34 START 47.604
HIERARCH ESO ISS PBL34 END 47.618
HIERARCH ESO ISS PBLA34 START 355.551
HIERARCH ESO ISS PBLA34 END 356.151
HIERARCH ESO ISS AMBI TAU0 START 0.003372
HIERARCH ESO ISS AMBI TAU0 END 0.003005
HIERARCH ESO ISS AMBI TEMP 16.92
HIERARCH ESO ISS AMBI FWHM START 0.67
HIERARCH ESO ISS AMBI FWHM END 0.75