Exposure
ID
GRAVI.2025-07-21T02:14:51.541_1
Header ID
GRAVI.2025-07-21T02:14:51.541
Date updated
2025-07-21 02:30:39 UTC+0000
Release date
2025-07-21 02:30:39 UTC+0000
UTC Start
2025-07-21 02:14:51.541
UTC End
2025-07-21 02:21:31.541
MJD Start
60877.09365209
MJD End
60877.09828171963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0072180000000000005
Ambient temperature (°C)
15.48
Seeing (arcsec)
0.575
Observation
ID
68148
Category
science
Program ID
110.24B5.004
Program Title
THE FORMATION OF MASSIVE BINARY STARS: A VIEW AT AU SCALES
Program Type
DDT
PI / COI
OUDMAIJER / KOUTOULAKI / KOUMPIA / FROST / DE WIT / GOODWIN / SHENTON / LUMSDEN
Target
ID
50656
Name
G320.2437-00.5619
RA
227.754214
DEC
-58.66096
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
LOW-COMBINED
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.5080 90.5040 140.1000 141.6000
A0-J2 124.7440 124.2890 122.4000 124.0000
A0-K0 112.9730 112.0430 103.3950 105.0000
G1-J2 47.3840 46.8470 86.8000 88.3000
G1-K0 67.5480 66.8110 50.1620 51.1310
J2-K0 40.8880 40.8380 6.3980 7.3050
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.24B5.004
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60877.09365209
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME G320.2437-00.5619
HIERARCH ESO INS SOBJ NAME G320.2437-00.5619
RA 227.754214
DEC -58.66096
HIERARCH ESO INS SPEC RES LOW
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 90.508
HIERARCH ESO ISS PBL12 END 90.504
HIERARCH ESO ISS PBLA12 START 140.1
HIERARCH ESO ISS PBLA12 END 141.6
HIERARCH ESO ISS PBL13 START 124.744
HIERARCH ESO ISS PBL13 END 124.289
HIERARCH ESO ISS PBLA13 START 122.4
HIERARCH ESO ISS PBLA13 END 124.0
HIERARCH ESO ISS PBL14 START 112.973
HIERARCH ESO ISS PBL14 END 112.043
HIERARCH ESO ISS PBLA14 START 103.395
HIERARCH ESO ISS PBLA14 END 105.0
HIERARCH ESO ISS PBL23 START 47.384
HIERARCH ESO ISS PBL23 END 46.847
HIERARCH ESO ISS PBLA23 START 86.8
HIERARCH ESO ISS PBLA23 END 88.3
HIERARCH ESO ISS PBL24 START 67.548
HIERARCH ESO ISS PBL24 END 66.811
HIERARCH ESO ISS PBLA24 START 50.162
HIERARCH ESO ISS PBLA24 END 51.131
HIERARCH ESO ISS PBL34 START 40.888
HIERARCH ESO ISS PBL34 END 40.838
HIERARCH ESO ISS PBLA34 START 6.398
HIERARCH ESO ISS PBLA34 END 7.305
HIERARCH ESO ISS AMBI TAU0 START 0.006864
HIERARCH ESO ISS AMBI TAU0 END 0.007572
HIERARCH ESO ISS AMBI TEMP 15.48
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.53
HIERARCH ESO FT ROBJ NAME 2MASS15110043-583941
HIERARCH ESO FT ROBJ ALPHA 151100.420
HIERARCH ESO FT ROBJ DELTA -583941.620