Exposure
ID
GRAVI.2025-07-08T05:31:14.843_2
Header ID
GRAVI.2025-07-08T05:31:14.843
Date updated
2025-07-08 05:45:55 UTC+0000
Release date
2026-07-08 05:45:55 UTC+0000
UTC Start
2025-07-08 05:31:14.843
UTC End
2025-07-08 05:37:14.843
MJD Start
60864.2300329
MJD End
60864.234199566665
Exposure time (s)
360.0
Validation level
1
Tau 0: Coherence time (s)
0.008206
Ambient temperature (°C)
15.56
Seeing (arcsec)
0.355
Observation
ID
68254
Category
science
Program ID
115.27WT.003
Program Title
THE GALACTIC CENTER WITH GRAVITY(+) - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
Program Type
GTO
PI / COI
EISENHAUER / GILLESSEN / GENZEL / OTT / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
ID
50720
Name
IRS16C
RA
266.4170791666666
DEC
-29.00768111111111
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 53.5480 53.2700 37.1000 37.5000
U1-U3 95.5820 94.9410 43.3000 43.7000
U1-U4 115.0530 113.5750 73.3190 73.8870
U2-U3 42.7600 42.3920 51.2000 51.6000
U2-U4 78.5430 77.4710 97.0970 97.9870
U3-U4 57.6210 57.1520 129.2760 130.4530
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.27WT.003
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 60864.2300329
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME SGRA
RA 266.416494
DEC -29.00741
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
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 389.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 53.548
HIERARCH ESO ISS PBL12 END 53.27
HIERARCH ESO ISS PBLA12 START 37.1
HIERARCH ESO ISS PBLA12 END 37.5
HIERARCH ESO ISS PBL13 START 95.582
HIERARCH ESO ISS PBL13 END 94.941
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.7
HIERARCH ESO ISS PBL14 START 115.053
HIERARCH ESO ISS PBL14 END 113.575
HIERARCH ESO ISS PBLA14 START 73.319
HIERARCH ESO ISS PBLA14 END 73.887
HIERARCH ESO ISS PBL23 START 42.76
HIERARCH ESO ISS PBL23 END 42.392
HIERARCH ESO ISS PBLA23 START 51.2
HIERARCH ESO ISS PBLA23 END 51.6
HIERARCH ESO ISS PBL24 START 78.543
HIERARCH ESO ISS PBL24 END 77.471
HIERARCH ESO ISS PBLA24 START 97.097
HIERARCH ESO ISS PBLA24 END 97.987
HIERARCH ESO ISS PBL34 START 57.621
HIERARCH ESO ISS PBL34 END 57.152
HIERARCH ESO ISS PBLA34 START 129.276
HIERARCH ESO ISS PBLA34 END 130.453
HIERARCH ESO ISS AMBI TAU0 START 0.008206
HIERARCH ESO ISS AMBI TAU0 END 0.008206
HIERARCH ESO ISS AMBI TEMP 15.56
HIERARCH ESO ISS AMBI FWHM START 0.34
HIERARCH ESO ISS AMBI FWHM END 0.37
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.0990
HIERARCH ESO FT ROBJ DELTA -290027.6520