Exposure
ID
GRAVI.2025-07-22T00:57:44.384_1
Header ID
GRAVI.2025-07-22T00:57:44.384
Date updated
2025-07-22 01:10:59 UTC+0000
Release date
2025-07-22 01:10:59 UTC+0000
UTC Start
2025-07-22 00:57:44.384
UTC End
2025-07-22 01:04:24.384
MJD Start
60878.04009704
MJD End
60878.04472666963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.00818
Ambient temperature (°C)
14.54
Seeing (arcsec)
0.49
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 89.8250 89.9600 124.8000 126.2000
A0-J2 128.4060 128.1710 105.9000 107.4000
A0-K0 121.3060 120.6500 87.2990 88.7740
G1-J2 52.2410 51.8480 72.1000 73.5000
G1-K0 74.1250 73.5940 39.7680 40.7670
J2-K0 41.0100 41.0300 356.7800 357.6920
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 60878.04009704
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 89.825
HIERARCH ESO ISS PBL12 END 89.96
HIERARCH ESO ISS PBLA12 START 124.8
HIERARCH ESO ISS PBLA12 END 126.2
HIERARCH ESO ISS PBL13 START 128.406
HIERARCH ESO ISS PBL13 END 128.171
HIERARCH ESO ISS PBLA13 START 105.9
HIERARCH ESO ISS PBLA13 END 107.4
HIERARCH ESO ISS PBL14 START 121.306
HIERARCH ESO ISS PBL14 END 120.65
HIERARCH ESO ISS PBLA14 START 87.299
HIERARCH ESO ISS PBLA14 END 88.774
HIERARCH ESO ISS PBL23 START 52.241
HIERARCH ESO ISS PBL23 END 51.848
HIERARCH ESO ISS PBLA23 START 72.1
HIERARCH ESO ISS PBLA23 END 73.5
HIERARCH ESO ISS PBL24 START 74.125
HIERARCH ESO ISS PBL24 END 73.594
HIERARCH ESO ISS PBLA24 START 39.768
HIERARCH ESO ISS PBLA24 END 40.767
HIERARCH ESO ISS PBL34 START 41.01
HIERARCH ESO ISS PBL34 END 41.03
HIERARCH ESO ISS PBLA34 START 356.78
HIERARCH ESO ISS PBLA34 END 357.692
HIERARCH ESO ISS AMBI TAU0 START 0.008426
HIERARCH ESO ISS AMBI TAU0 END 0.007934
HIERARCH ESO ISS AMBI TEMP 14.54
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.47
HIERARCH ESO FT ROBJ NAME 2MASS15110043-583941
HIERARCH ESO FT ROBJ ALPHA 151100.420
HIERARCH ESO FT ROBJ DELTA -583941.620