Exposure
ID
GRAVI.2025-06-09T05:06:21.064_1
Header ID
GRAVI.2025-06-09T05:06:21.064
Date updated
2025-06-09 05:25:36 UTC+0000
Release date
2026-06-09 05:25:36 UTC+0000
UTC Start
2025-06-09 05:06:21.064
UTC End
2025-06-09 05:13:01.064
MJD Start
60835.2127438
MJD End
60835.21737342963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0074895
Ambient temperature (°C)
13.68
Seeing (arcsec)
0.29
Observation
ID
67848
Category
science
Program ID
115.28E1.002
Program Title
A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
ID
50448
Name
WR_92
RA
261.349768
DEC
-43.49217
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 53.8970 53.7130 28.4000 29.2000
U1-U3 98.0810 97.6980 34.9000 35.8000
U1-U4 127.9830 127.4880 63.1310 64.2120
U2-U3 44.9630 44.7720 42.8000 43.8000
U2-U4 89.1680 88.9980 83.2900 84.4690
U3-U4 62.2230 62.3230 111.2540 112.4080
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,SINGLE
MJD-OBS 60835.2127438
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 157451
HIERARCH ESO INS SOBJ NAME WR_92
RA 261.349768
DEC -43.49217
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 53.897
HIERARCH ESO ISS PBL12 END 53.713
HIERARCH ESO ISS PBLA12 START 28.4
HIERARCH ESO ISS PBLA12 END 29.2
HIERARCH ESO ISS PBL13 START 98.081
HIERARCH ESO ISS PBL13 END 97.698
HIERARCH ESO ISS PBLA13 START 34.9
HIERARCH ESO ISS PBLA13 END 35.8
HIERARCH ESO ISS PBL14 START 127.983
HIERARCH ESO ISS PBL14 END 127.488
HIERARCH ESO ISS PBLA14 START 63.131
HIERARCH ESO ISS PBLA14 END 64.212
HIERARCH ESO ISS PBL23 START 44.963
HIERARCH ESO ISS PBL23 END 44.772
HIERARCH ESO ISS PBLA23 START 42.8
HIERARCH ESO ISS PBLA23 END 43.8
HIERARCH ESO ISS PBL24 START 89.168
HIERARCH ESO ISS PBL24 END 88.998
HIERARCH ESO ISS PBLA24 START 83.29
HIERARCH ESO ISS PBLA24 END 84.469
HIERARCH ESO ISS PBL34 START 62.223
HIERARCH ESO ISS PBL34 END 62.323
HIERARCH ESO ISS PBLA34 START 111.254
HIERARCH ESO ISS PBLA34 END 112.408
HIERARCH ESO ISS AMBI TAU0 START 0.007847
HIERARCH ESO ISS AMBI TAU0 END 0.007132
HIERARCH ESO ISS AMBI TEMP 13.68
HIERARCH ESO ISS AMBI FWHM START 0.29
HIERARCH ESO ISS AMBI FWHM END 0.29