Exposure
ID
GRAVI.2025-02-25T08:40:24.694_1
Header ID
GRAVI.2025-02-25T08:40:24.694
Date updated
2025-02-25 08:55:31 UTC+0000
Release date
2026-02-25 08:55:31 UTC+0000
UTC Start
2025-02-25 08:40:24.694
UTC End
2025-02-25 08:45:12.694
MJD Start
60731.36139692
MJD End
60731.364730253335
Exposure time (s)
288.0
Validation level
1
Tau 0: Coherence time (s)
0.008363
Ambient temperature (°C)
16.0
Seeing (arcsec)
1.1
Observation
ID
64845
Category
science
Program ID
114.27F8.001
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
48290
Name
HD326823
RA
256.721589
DEC
-42.61104
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 71.5520 72.4810 88.4000 89.3000
A0-J2 111.1180 112.0940 61.6000 62.7000
A0-K0 120.3930 120.8700 40.5960 41.7490
G1-J2 57.2630 57.3440 27.2000 28.3000
G1-K0 89.6830 89.6660 4.3640 5.1280
J2-K0 43.0940 43.2630 333.3030 333.7460
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.27F8.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60731.36139692
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 326823
HIERARCH ESO INS SOBJ NAME HD326823
RA 256.721589
DEC -42.61104
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 71.552
HIERARCH ESO ISS PBL12 END 72.481
HIERARCH ESO ISS PBLA12 START 88.4
HIERARCH ESO ISS PBLA12 END 89.3
HIERARCH ESO ISS PBL13 START 111.118
HIERARCH ESO ISS PBL13 END 112.094
HIERARCH ESO ISS PBLA13 START 61.6
HIERARCH ESO ISS PBLA13 END 62.7
HIERARCH ESO ISS PBL14 START 120.393
HIERARCH ESO ISS PBL14 END 120.87
HIERARCH ESO ISS PBLA14 START 40.596
HIERARCH ESO ISS PBLA14 END 41.749
HIERARCH ESO ISS PBL23 START 57.263
HIERARCH ESO ISS PBL23 END 57.344
HIERARCH ESO ISS PBLA23 START 27.2
HIERARCH ESO ISS PBLA23 END 28.3
HIERARCH ESO ISS PBL24 START 89.683
HIERARCH ESO ISS PBL24 END 89.666
HIERARCH ESO ISS PBLA24 START 4.364
HIERARCH ESO ISS PBLA24 END 5.128
HIERARCH ESO ISS PBL34 START 43.094
HIERARCH ESO ISS PBL34 END 43.263
HIERARCH ESO ISS PBLA34 START 333.303
HIERARCH ESO ISS PBLA34 END 333.746
HIERARCH ESO ISS AMBI TAU0 START 0.007317
HIERARCH ESO ISS AMBI TAU0 END 0.009409
HIERARCH ESO ISS AMBI TEMP 16.0
HIERARCH ESO ISS AMBI FWHM START 1.22
HIERARCH ESO ISS AMBI FWHM END 0.98