Exposure
ID
GRAVI.2024-08-16T01:37:08.821_1
Header ID
GRAVI.2024-08-16T01:37:08.821
Date updated
2024-08-16 01:50:29 UTC+0000
Release date
2025-08-16 01:50:29 UTC+0000
UTC Start
2024-08-16 01:37:08.821
UTC End
2024-08-16 01:41:56.821
MJD Start
60538.06746321
MJD End
60538.0707965433
Exposure time (s)
288.0
Validation level
1
Tau 0: Coherence time (s)
0.002991
Ambient temperature (°C)
13.23
Seeing (arcsec)
0.865
Observation
ID
59229
Category
science
Program ID
113.26PU.001
Program Title
3D ORBIT RECONSTRUCTION OF EVOLVED MASSIVE BINARY SYSTEMS
Program Type
Normal
PI / COI
MAHY / SANA / FROST / LANTHERMANN / LE BOUQUIN / GOSSET / HUTSEMEKERS
Target
ID
43480
Name
Cl*_Westerlund_1_W_2
RA
251.778061
DEC
-45.87478
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 89.9850 89.8690 133.5000 134.5000
A0-J2 123.6100 123.0470 112.5000 113.5000
A0-K0 115.9840 115.1130 90.7220 91.6680
G1-J2 51.0540 50.6230 73.3000 74.1000
G1-K0 78.8490 78.3910 39.9750 40.5170
J2-K0 45.8070 45.7960 2.1880 2.8000
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26PU.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60538.06746321
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME Cl Westerlund 1 W 243
HIERARCH ESO INS SOBJ NAME Cl*_Westerlund_1_W_2
RA 251.778061
DEC -45.87478
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 315.0
HIERARCH ESO DET2 SEQ1 DIT 3.0
HIERARCH ESO DET2 NDIT 96
HIERARCH ESO ISS PBL12 START 89.985
HIERARCH ESO ISS PBL12 END 89.869
HIERARCH ESO ISS PBLA12 START 133.5
HIERARCH ESO ISS PBLA12 END 134.5
HIERARCH ESO ISS PBL13 START 123.61
HIERARCH ESO ISS PBL13 END 123.047
HIERARCH ESO ISS PBLA13 START 112.5
HIERARCH ESO ISS PBLA13 END 113.5
HIERARCH ESO ISS PBL14 START 115.984
HIERARCH ESO ISS PBL14 END 115.113
HIERARCH ESO ISS PBLA14 START 90.722
HIERARCH ESO ISS PBLA14 END 91.668
HIERARCH ESO ISS PBL23 START 51.054
HIERARCH ESO ISS PBL23 END 50.623
HIERARCH ESO ISS PBLA23 START 73.3
HIERARCH ESO ISS PBLA23 END 74.1
HIERARCH ESO ISS PBL24 START 78.849
HIERARCH ESO ISS PBL24 END 78.391
HIERARCH ESO ISS PBLA24 START 39.975
HIERARCH ESO ISS PBLA24 END 40.517
HIERARCH ESO ISS PBL34 START 45.807
HIERARCH ESO ISS PBL34 END 45.796
HIERARCH ESO ISS PBLA34 START 2.188
HIERARCH ESO ISS PBLA34 END 2.8
HIERARCH ESO ISS AMBI TAU0 START 0.002881
HIERARCH ESO ISS AMBI TAU0 END 0.003101
HIERARCH ESO ISS AMBI TEMP 13.23
HIERARCH ESO ISS AMBI FWHM START 0.8
HIERARCH ESO ISS AMBI FWHM END 0.93