Exposure
ID
GRAVI.2025-04-04T08:40:37.349_1
Header ID
GRAVI.2025-04-04T08:40:37.349
Date updated
2025-04-04 08:55:51 UTC+0000
Release date
2025-04-04 08:55:50 UTC+0000
UTC Start
2025-04-04 08:40:37.349
UTC End
2025-04-04 08:46:37.349
MJD Start
60769.36154339
MJD End
60769.36571005666
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.006382499999999999
Ambient temperature (°C)
14.02
Seeing (arcsec)
0.5
Observation
ID
66041
Category
science
Program ID
110.24B5.003
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
49160
Name
G017.9868-00.1098
RA
276.016467
DEC
-13.31944
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B2 D0 C1
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B2 25.1480 25.1950 136.1000 136.3000
A0-D0 29.0080 29.3240 63.6000 64.2000
A0-C1 21.7180 21.8690 110.9760 111.1870
B2-D0 32.1810 32.2590 15.4000 16.2000
B2-C1 10.7210 10.7460 15.3190 16.1700
D0-C1 21.4610 21.5120 195.3830 196.2340
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 110.24B5.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60769.36154339
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME G017.9868-00.1098
HIERARCH ESO INS SOBJ NAME G017.9868-00.1098
RA 276.016467
DEC -13.31944
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 B2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 C1
EXPTIME 377.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 25.148
HIERARCH ESO ISS PBL12 END 25.195
HIERARCH ESO ISS PBLA12 START 136.1
HIERARCH ESO ISS PBLA12 END 136.3
HIERARCH ESO ISS PBL13 START 29.008
HIERARCH ESO ISS PBL13 END 29.324
HIERARCH ESO ISS PBLA13 START 63.6
HIERARCH ESO ISS PBLA13 END 64.2
HIERARCH ESO ISS PBL14 START 21.718
HIERARCH ESO ISS PBL14 END 21.869
HIERARCH ESO ISS PBLA14 START 110.976
HIERARCH ESO ISS PBLA14 END 111.187
HIERARCH ESO ISS PBL23 START 32.181
HIERARCH ESO ISS PBL23 END 32.259
HIERARCH ESO ISS PBLA23 START 15.4
HIERARCH ESO ISS PBLA23 END 16.2
HIERARCH ESO ISS PBL24 START 10.721
HIERARCH ESO ISS PBL24 END 10.746
HIERARCH ESO ISS PBLA24 START 15.319
HIERARCH ESO ISS PBLA24 END 16.17
HIERARCH ESO ISS PBL34 START 21.461
HIERARCH ESO ISS PBL34 END 21.512
HIERARCH ESO ISS PBLA34 START 195.383
HIERARCH ESO ISS PBLA34 END 196.234
HIERARCH ESO ISS AMBI TAU0 START 0.006558
HIERARCH ESO ISS AMBI TAU0 END 0.006207
HIERARCH ESO ISS AMBI TEMP 14.02
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.55